**The 8^th^ Workshop on Adjoint Model Applications**

**In Dynamic Meteorology**

**Tannersville, Pennsylvania**

**18-22 May 2008**

**Sponsored by**

**The U.S. National Science Foundation**

**NASA's Global Modeling and Assimilation Office**

**Chief Organizer: Ronald Errico (GMAO and GEST)**

**Organizing committee:**

**Susan Ballard (Met-Office)**

**Jan Barkmeijer (KNMI)**

**Carla Cardinali (ECMWF)**

**Gerald Desroziers (Meteo-France)**

**Jeff Kepert (CAWCR)**

**Saroja Polavarapu (Environ. Canada)**

**Liang Xu (NRL)**

**Runhua Yang (GMAO)**

**DRAFT PROGRAM**

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+----+--------------------------+---+---------------------------------+
| 08 | Ronald Errico            |   | Welcoming remarks and           |
| 40 |                          |   | anouncements                    |
+----+--------------------------+---+---------------------------------+
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| 09 | Clark Amerault (NRL)     | 1 | Analysis of coastal atmospheric |
| 00 |                          | . | flow with a nested adjoint      |
|    |                          | 1 | model                           |
+----+--------------------------+---+---------------------------------+
| 09 | Michael Morgan (U.       | 1 | Separating the wheat from the   |
| 25 | Wisconsin)               | . | chaff: Disambiguating dynamic   |
|    |                          | 2 | interpretation of adjoint       |
|    | Brett Hoover             |   | sensitivity fields              |
+----+--------------------------+---+---------------------------------+
| 09 | Brett Hoover (U.         | 1 | Application and interpretation  |
| 50 | Wisconsin)               | . | of adjoint-derived sensitivity  |
|    |                          | 3 | fields for tropical cyclone     |
|    |                          |   | steering                        |
+----+--------------------------+---+---------------------------------+
| 10 | Vani Cheruvu (NCAR)      | 1 | Adjoint sensitivity analysis    |
| 15 |                          | . | for a two-layered shallow water |
|    | Joseph Tribbia           | 4 | model in a limited domain       |
+----+--------------------------+---+---------------------------------+
| 10 | Break                    |   |                                 |
| 40 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
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|    |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 11 | Linus Magnusson          | * | TBA : Topic=Comparison of SVs,  |
| 00 |                          | * | BGVs, and random perturbations  |
|    | (U. Stockholm)           | * | for ensemble forecasting        |
|    |                          | 1 |                                 |
|    |                          | . |                                 |
|    |                          | 6 |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
+----+--------------------------+---+---------------------------------+
| 11 | Roel Stappers (KNMI)     | 1 | CAPE singular vectors in        |
| 50 |                          | . | limited area models             |
|    |                          | 7 |                                 |
+----+--------------------------+---+---------------------------------+
| 12 | Lunch                    |   |                                 |
| 30 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+

If a presentation has multiple authors affiliated with the same
institution, that institution is indicated only once. If an author has
multiple affiliations, only the primary one is indicated. A presentation
number in bold italics indicates a long (invited) talk. All times are
tentative.

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+----+--------------------------+---+---------------------------------+
| 14 | Simon Lang (U.           | 2 | The structure of singular       |
| 00 | Karlsruhe)               | . | vectors associated with         |
|    |                          | 1 | extratropical transition of     |
|    | Sarah Jones              |   | tropical cyclones               |
|    |                          |   |                                 |
|    | Martin Leutbecher        |   |                                 |
|    | (ECMWF)                  |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
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+----+--------------------------+---+---------------------------------+
| 14 | Ronald Gelaro (GMAO)     | * | TBA: Topic=Observation Impacts  |
| 25 |                          | * | determined from an adjoint of a |
|    |                          | * | forecast and analysis system    |
|    |                          | 2 |                                 |
|    |                          | . |                                 |
|    |                          | 2 |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
+----+--------------------------+---+---------------------------------+
| 15 | Rolf Langland (NRL)      | 2 | Adjoint-based monitoring of     |
| 15 |                          | . | observation impact at           |
|    |                          | 3 | NRL-Monterey                    |
+----+--------------------------+---+---------------------------------+
| 15 | Break                    |   |                                 |
| 40 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 16 | Dacian Daescu (Portland  | 2 | Adjoint estimation to observing |
| 00 | State U.)                | . | system experiments outcomes     |
|    |                          | 4 |                                 |
+----+--------------------------+---+---------------------------------+
| 16 | Ricardo Todling (GMAO)   | 2 | TBA                             |
| 25 |                          | . |                                 |
|    |                          | 5 |                                 |
+----+--------------------------+---+---------------------------------+
| 16 | Zaizhong Ma (UCAR)       | 2 | Implementation of a new GPS     |
| 50 |                          | . | observation operator in the     |
|    | Ying-Hwa Kuo             | 6 | NCEP GSI data assimilation      |
|    |                          |   | system                          |
|    | Bin Wang (IAP/CAS China) |   |                                 |
|    |                          |   |                                 |
|    | Wan-Shu Wu (NCEP)        |   |                                 |
|    |                          |   |                                 |
|    | Sergey Sokolovskiy       |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
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+----+--------------------------+---+---------------------------------+
| 17 | Simon Blessing (Fast     | 2 | Towards parameter estimation    |
| 15 | Opt)                     | . | for a coupled climate model and |
|    |                          | 7 | other recent TAF applications   |
|    | Ralf Giering             |   |                                 |
|    |                          |   |                                 |
|    | Thomas Kaminski          |   |                                 |
|    |                          |   |                                 |
|    | Michael Vossbeck         |   |                                 |
+----+--------------------------+---+---------------------------------+
| 18 | Dinner                   |   |                                 |
| 30 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+

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+----+--------------------------+---+---------------------------------+
| 09 | Andrew Moore (?)         | * | TBA: topic = adjoint            |
| 00 |                          | * | applications to ocean problems  |
|    |                          | * |                                 |
|    |                          | 3 |                                 |
|    |                          | . |                                 |
|    |                          | 1 |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
+----+--------------------------+---+---------------------------------+
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+----+--------------------------+---+---------------------------------+
| 09 | Brian Powell (U. Hawaii) | 3 | Dynamics of the California      |
| 50 |                          | . | current from the representer    |
|    | Emanuelle DiLorenzo      | 2 | matrix                          |
|    | (GIT)                    |   |                                 |
+----+--------------------------+---+---------------------------------+
| 10 | Weifeng Zhang (Rutgers   | 3 | Representer-based observing     |
| 15 | U.)                      | . | system design in the New York   |
|    |                          | 3 | Bight                           |
|    | John Wilkin              |   |                                 |
|    |                          |   |                                 |
|    | Hernan Arango            |   |                                 |
+----+--------------------------+---+---------------------------------+
| 10 | Break                    |   |                                 |
| 40 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 11 | Patrick Heimbach (MIT)   | 3 | Transient sensitivities of sea  |
| 00 |                          | . | ice export through the Canadian |
|    |                          | 4 | Arctic Archipelago inferred     |
|    |                          |   | from a coupled ocean/sea-ice    |
|    |                          |   | adjoint model                   |
+----+--------------------------+---+---------------------------------+
| 11 | Andy Moore (?)           | 3 | Using adjoint models to         |
| 25 |                          | . | understand the response of the  |
|    | Kettyah Chhak (?)        | 5 | ocean circulation to the North  |
|    |                          |   | Atlantic Oscillation            |
|    | Ralph Milliff (?)        |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
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+----+--------------------------+---+---------------------------------+
| 11 | Zhijin Li (JPL)          | 3 | A multi-scale three-dimensional |
| 50 |                          | . | variational data assimilation   |
|    | Yi Chao                  | 6 | scheme                          |
|    |                          |   |                                 |
|    | James McWilliams (UCLA)  |   |                                 |
|    |                          |   |                                 |
|    | Kayo Ide (U. Maryland)   |   |                                 |
+----+--------------------------+---+---------------------------------+
| 12 | Lunch                    |   |                                 |
| 30 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+

+----+--------------------------+---+---------------------------------+
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+----+--------------------------+---+---------------------------------+
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+----+--------------------------+---+---------------------------------+
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+----+--------------------------+---+---------------------------------+
| 14 | Polly Smith (U. Reading) | 4 | Variational data assimilation   |
| 00 |                          | . | for morphodynamic parameter     |
|    | Sarah Dance              | 1 | estimation                      |
|    |                          |   |                                 |
|    | M. Baines                |   |                                 |
|    |                          |   |                                 |
|    | Nancy Nichols            |   |                                 |
|    |                          |   |                                 |
|    | T. Scott                 |   |                                 |
+----+--------------------------+---+---------------------------------+
| 14 | Muhammad Umer Altaf      | 4 | Inverse shallow water flow      |
| 25 |                          | . | modeling using model reduction  |
|    | (TU Delft)               | 2 |                                 |
|    |                          |   |                                 |
|    | A. Heemink               |   |                                 |
|    |                          |   |                                 |
|    | Martin Verlaan           |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
| *M |                          |   |                                 |
| es |                          |   |                                 |
| os |                          |   |                                 |
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+----+--------------------------+---+---------------------------------+
| 14 | Pierre Brousseau         | * | TBA: convective scale data      |
| 50 |                          | * | assimilation issues and plans   |
|    | (Meteo-France)           | * |                                 |
|    |                          | 4 |                                 |
|    |                          | . |                                 |
|    |                          | 3 |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
+----+--------------------------+---+---------------------------------+
| 15 | Nancy Nichols (U.        | 4 | Multiscale data assimilation    |
| 40 | Reading)                 | . | for high resolution nested      |
|    |                          | 4 | models                          |
|    | Sarah Dance              |   |                                 |
+----+--------------------------+---+---------------------------------+
| 16 | Break (followed by       |   |                                 |
| 05 | poster session)          |   |                                 |
+----+--------------------------+---+---------------------------------+

+-----------------------+----+----+-----------------------------------+
| Session 5             |    |    |                                   |
|                       |    |    |                                   |
| Tuesday Afternoon 19  |    |    |                                   |
| May 2009              |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
|                       |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| 1605 thru Thursday    |    |    |                                   |
| night                 |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| **Posters**           |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| Brian Ancell (U.      |    | 5  | TBA                               |
| Washington)           |    | .1 |                                   |
+-----------------------+----+----+-----------------------------------+
| Gerald Desroziers     |    | 5  | A posteriori diagnostics in an    |
| (Meteo-France)        |    | .2 | ensemble of perturbed analyses    |
|                       |    |    |                                   |
| Loik Berre            |    |    |                                   |
|                       |    |    |                                   |
| V. Chabot             |    |    |                                   |
|                       |    |    |                                   |
| B. Chapnik            |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| Steven Fletcher       |    | 5  | Assimilation of MODIS snow cover  |
| (Colorado State U.)   |    | .3 | data into SnowModel               |
|                       |    |    |                                   |
| Christopher Hiemstra  |    |    |                                   |
|                       |    |    |                                   |
| Steven Miller         |    |    |                                   |
|                       |    |    |                                   |
| Glen Liston           |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| Hamza Guerbi          |    | 5  | TBA                               |
| (Algeria)             |    | .4 |                                   |
+-----------------------+----+----+-----------------------------------+
| Jeff Kepert (CAWCR)   |    | 5  | An observation operator for the   |
|                       |    | .5 | variational assimilation of       |
|                       |    |    | vortex position and intensity     |
+-----------------------+----+----+-----------------------------------+
| Geremew Aragaw Kifle  |    | 5  | Stochastic prediction of Kirmt    |
| (National             |    | .6 | (June -- September) rainfall over |
|                       |    |    | north central Ethiopian highlands |
| Meteorological Agency |    |    |                                   |
| Ethiopia)             |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| Hui Shao (NCAR)       |    | 5  | AIRS radiance data assimilation   |
|                       |    | .7 | and impact studies                |
| Thomas Auligne        |    |    |                                   |
|                       |    |    |                                   |
| Zhiquan Liu           |    |    |                                   |
|                       |    |    |                                   |
| Hans Huang            |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| Francois Vandenberghe |    | 5  | Source estimation with adjoint    |
| (NCAR)                |    | .8 | models                            |
|                       |    |    |                                   |
| P. Bieringer          |    |    |                                   |
|                       |    |    |                                   |
| J. Hurst              |    |    |                                   |
|                       |    |    |                                   |
| J. Weil               |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| Nils van Velzen (TU   |    | 5  | A generic approach for applying   |
| Delft)                |    | .9 | data assimilation on parallel     |
|                       |    |    | models                            |
+-----------------------+----+----+-----------------------------------+
| Javier Zavala-Garay   |    | 5. | Development of an adjoint-based   |
| (Rutgers U.)          |    | 10 | operational analysis/forecast     |
|                       |    |    | system for the Mid Atlantic Bight |
| John Wilkin           |    |    |                                   |
|                       |    |    |                                   |
| Julia Levin           |    |    |                                   |
|                       |    |    |                                   |
| Gordon Zhang          |    |    |                                   |
|                       |    |    |                                   |
| H. Arango             |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| Xiang- Yu Huang       |    | 5. | Performance of WRF 4D-Var system: |
| (NCAR)                |    | 11 | scientific and software           |
|                       |    |    | engineering                       |
| Xin Zhang             |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
| Runhua Yang (GMAO)    |    | 5. | Validation of the new GMAO OSSE   |
|                       |    | 12 | system                            |
| Ronald Errico         |    |    |                                   |
+-----------------------+----+----+-----------------------------------+
|                       |    | 5. |                                   |
|                       |    | 13 |                                   |
+-----------------------+----+----+-----------------------------------+
|                       |    | 5. |                                   |
|                       |    | 14 |                                   |
+-----------------------+----+----+-----------------------------------+
|                       |    | 5. |                                   |
|                       |    | 15 |                                   |
+-----------------------+----+----+-----------------------------------+

+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| 6  |                          |   |                                 |
|    |                          |   |                                 |
| W  |                          |   |                                 |
| ed |                          |   |                                 |
| ne |                          |   |                                 |
| sd |                          |   |                                 |
| ay |                          |   |                                 |
| M  |                          |   |                                 |
| or |                          |   |                                 |
| ni |                          |   |                                 |
| ng |                          |   |                                 |
| 20 |                          |   |                                 |
| M  |                          |   |                                 |
| ay |                          |   |                                 |
| 20 |                          |   |                                 |
| 09 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| Ch |                          |   |                                 |
| ai |                          |   |                                 |
| r: |                          |   |                                 |
| ?? |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
| *S |                          |   |                                 |
| ta |                          |   |                                 |
| ti |                          |   |                                 |
| st |                          |   |                                 |
| ic |                          |   |                                 |
| al |                          |   |                                 |
| Co |                          |   |                                 |
| ns |                          |   |                                 |
| id |                          |   |                                 |
| er |                          |   |                                 |
| at |                          |   |                                 |
| io |                          |   |                                 |
| ns |                          |   |                                 |
| ** |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 09 | Gerald Desroziers        | * | TBA: topic=statistical metrics  |
| 00 | (Meteo-France)           | * | for data assimilation           |
|    |                          | * | validation based on the KF      |
|    |                          | 6 |                                 |
|    |                          | . |                                 |
|    |                          | 1 |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
+----+--------------------------+---+---------------------------------+
| 09 | Laure Raynaud            | 6 | Objective filtering of          |
| 50 | (Meteo-France)           | . | ensemble-based background-error |
|    |                          | 2 | variances                       |
|    | Loik Berre               |   |                                 |
|    |                          |   |                                 |
|    | Gerald Desroziers        |   |                                 |
+----+--------------------------+---+---------------------------------+
| 10 | Laura Stewart (U.        | 6 | Optimising the use of satellite |
| 15 | Reading)                 | . | data in numerical weather       |
|    |                          | 3 | prediction through the          |
|    | J. Cameron               |   | inclusion of error correlation  |
|    |                          |   | structures                      |
|    | Sarah Dance              |   |                                 |
|    |                          |   |                                 |
|    | Steven English           |   |                                 |
|    |                          |   |                                 |
|    | John Eyre                |   |                                 |
|    |                          |   |                                 |
|    | Nancy Nichols            |   |                                 |
+----+--------------------------+---+---------------------------------+
| 10 | Break                    |   |                                 |
| 40 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
| *B |                          |   |                                 |
| al |                          |   |                                 |
| an |                          |   |                                 |
| ce |                          |   |                                 |
| Co |                          |   |                                 |
| ns |                          |   |                                 |
| id |                          |   |                                 |
| er |                          |   |                                 |
| at |                          |   |                                 |
| io |                          |   |                                 |
| ns |                          |   |                                 |
| ** |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 11 | Jeff Kepert (CAWCR)      | 6 | An EnKF formulation that        |
| 00 |                          | . | respects atmospheric balance    |
|    |                          | 4 |                                 |
+----+--------------------------+---+---------------------------------+
| 11 | Saroja Polavarapu        | 6 | Vertical propagation of         |
| 25 |                          | . | information in data             |
|    | (Environment Canada)     | 5 | assimilation systems            |
|    |                          |   |                                 |
|    | Yulia Nezlin (U.         |   |                                 |
|    | Toronto)                 |   |                                 |
|    |                          |   |                                 |
|    | Shuzhan Ren (U. Toronto) |   |                                 |
|    |                          |   |                                 |
|    | Yves Rochon              |   |                                 |
|    |                          |   |                                 |
|    | Stephen Beagley (U.      |   |                                 |
|    | Toronto)                 |   |                                 |
+----+--------------------------+---+---------------------------------+
| 11 | Sanita Vetra (U.         | 6 | Validity of the hydrostatic     |
| 50 | Reading)                 | . | balance in the Met Office high  |
|    |                          | 6 | resolution ensemble forecast    |
|    | M. Dixon                 |   | system                          |
|    |                          |   |                                 |
|    | S. Migliorini            |   |                                 |
|    |                          |   |                                 |
|    | Nancy Nichols            |   |                                 |
+----+--------------------------+---+---------------------------------+
| 12 | Lunch                    |   |                                 |
| 30 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+

  ------------- -----------------------------------------------------------------
  Wednesday     
  Afternoon 20  
  May 2009      

  Free time     
  (weather      
  permitting)   

                

  1830          Dinner
  ------------- -----------------------------------------------------------------

+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| 7  |                          |   |                                 |
|    |                          |   |                                 |
| W  |                          |   |                                 |
| ed |                          |   |                                 |
| ne |                          |   |                                 |
| sd |                          |   |                                 |
| ay |                          |   |                                 |
| E  |                          |   |                                 |
| ve |                          |   |                                 |
| ni |                          |   |                                 |
| ng |                          |   |                                 |
| 20 |                          |   |                                 |
| M  |                          |   |                                 |
| ay |                          |   |                                 |
| 20 |                          |   |                                 |
| 09 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| Ch |                          |   |                                 |
| ai |                          |   |                                 |
| r: |                          |   |                                 |
| ?? |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
| *A |                          |   |                                 |
| tm |                          |   |                                 |
| os |                          |   |                                 |
| ph |                          |   |                                 |
| er |                          |   |                                 |
| ic |                          |   |                                 |
| Mo |                          |   |                                 |
| de |                          |   |                                 |
| li |                          |   |                                 |
| ng |                          |   |                                 |
| ** |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 20 | Joseph Tribbia (NCAR)    | * | TBA: topic=modeling issues      |
| 00 |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | 7 |                                 |
|    |                          | . |                                 |
|    |                          | 1 |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
+----+--------------------------+---+---------------------------------+

The schedule may be changed so that a different afternoon is used for
free time if the weather disfavors Wednesday.

+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| 7  |                          |   |                                 |
|    |                          |   |                                 |
| W  |                          |   |                                 |
| ed |                          |   |                                 |
| ne |                          |   |                                 |
| sd |                          |   |                                 |
| ay |                          |   |                                 |
| E  |                          |   |                                 |
| ve |                          |   |                                 |
| ni |                          |   |                                 |
| ng |                          |   |                                 |
| 20 |                          |   |                                 |
| M  |                          |   |                                 |
| ay |                          |   |                                 |
| 20 |                          |   |                                 |
| 09 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| Ch |                          |   |                                 |
| ai |                          |   |                                 |
| r: |                          |   |                                 |
| ?? |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
| *A |                          |   |                                 |
| tm |                          |   |                                 |
| os |                          |   |                                 |
| ph |                          |   |                                 |
| er |                          |   |                                 |
| ic |                          |   |                                 |
| Mo |                          |   |                                 |
| de |                          |   |                                 |
| li |                          |   |                                 |
| ng |                          |   |                                 |
| ** |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 20 | Joseph Tribbia (NCAR)    | * | TBA: topic=modeling issues      |
| 00 |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | 7 |                                 |
|    |                          | . |                                 |
|    |                          | 1 |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
+----+--------------------------+---+---------------------------------+

+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| 8  |                          |   |                                 |
|    |                          |   |                                 |
| Th |                          |   |                                 |
| ur |                          |   |                                 |
| sd |                          |   |                                 |
| ay |                          |   |                                 |
| M  |                          |   |                                 |
| or |                          |   |                                 |
| ni |                          |   |                                 |
| ng |                          |   |                                 |
| 21 |                          |   |                                 |
| M  |                          |   |                                 |
| ay |                          |   |                                 |
| 20 |                          |   |                                 |
| 09 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| Ch |                          |   |                                 |
| ai |                          |   |                                 |
| r: |                          |   |                                 |
| ?? |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| *  |                          |   |                                 |
| *V |                          |   |                                 |
| ar |                          |   |                                 |
| ia |                          |   |                                 |
| ti |                          |   |                                 |
| on |                          |   |                                 |
| al |                          |   |                                 |
| Da |                          |   |                                 |
| ta |                          |   |                                 |
| As |                          |   |                                 |
| si |                          |   |                                 |
| mi |                          |   |                                 |
| la |                          |   |                                 |
| ti |                          |   |                                 |
| on |                          |   |                                 |
| ** |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 09 | Tim Payne (Met Office)   | 8 | The linear model in 4DVAR       |
| 00 |                          | . |                                 |
|    |                          | 1 |                                 |
+----+--------------------------+---+---------------------------------+
| 09 | Cecile Loo               | 8 | Incremental 4D-VAR convergence  |
| 25 | (Meteo-France)           | . | study in operational context at |
|    |                          | 2 | Meteo-France                    |
+----+--------------------------+---+---------------------------------+
| 09 | Lisa Neef (KNMI)         | 8 | Inverse modeling of methane     |
| 50 |                          | . | emissions using 4d-Var          |
|    |                          | 3 |                                 |
+----+--------------------------+---+---------------------------------+
| 10 | Renata Retkute (U.       | 8 | A Hamiltonian approach to the   |
| 15 | Surrey)                  | . | adjoint technique               |
|    |                          | 4 |                                 |
|    | Ian Roulstone            |   |                                 |
+----+--------------------------+---+---------------------------------+
| 10 | Break                    |   |                                 |
| 40 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 11 | Amal El Akkraoui (McGill | 8 | Convergence of minimization     |
| 00 | U)                       | . | algorithms for the primal and   |
|    |                          | 5 | dual forms of the strong and    |
|    | Pierre Gauthier (UQAM)   |   | weak constraint variational     |
|    |                          |   | data assimilation problem       |
+----+--------------------------+---+---------------------------------+
| 11 | Carla Cardinali (ECMWF)  | 8 | Model error representation in   |
| 25 |                          | . | ensemble data assimilation      |
|    |                          | 6 |                                 |
+----+--------------------------+---+---------------------------------+
| 11 | Steven Fletcher          | 8 | Non-Gaussian 4DVAR              |
| 50 |                          | . |                                 |
|    | (Colorado State U.)      | 7 |                                 |
|    |                          |   |                                 |
|    | Manajit Sengupta         |   |                                 |
+----+--------------------------+---+---------------------------------+
| 12 | Lunch                    |   |                                 |
| 30 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+

+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| 9  |                          |   |                                 |
|    |                          |   |                                 |
| Th |                          |   |                                 |
| ur |                          |   |                                 |
| sd |                          |   |                                 |
| ay |                          |   |                                 |
| A  |                          |   |                                 |
| ft |                          |   |                                 |
| er |                          |   |                                 |
| no |                          |   |                                 |
| on |                          |   |                                 |
| 21 |                          |   |                                 |
| M  |                          |   |                                 |
| ay |                          |   |                                 |
| 20 |                          |   |                                 |
| 09 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| S  |                          |   |                                 |
| es |                          |   |                                 |
| si |                          |   |                                 |
| on |                          |   |                                 |
| Ch |                          |   |                                 |
| ai |                          |   |                                 |
| r: |                          |   |                                 |
| ?  |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| ** |                          |   |                                 |
| Hy |                          |   |                                 |
| br |                          |   |                                 |
| id |                          |   |                                 |
| Da |                          |   |                                 |
| ta |                          |   |                                 |
| As |                          |   |                                 |
| si |                          |   |                                 |
| mi |                          |   |                                 |
| la |                          |   |                                 |
| ti |                          |   |                                 |
| on |                          |   |                                 |
| S  |                          |   |                                 |
| ch |                          |   |                                 |
| em |                          |   |                                 |
| es |                          |   |                                 |
| ** |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 14 | Loik Berre               | * | TBA: Use of ensembles to        |
| 00 | (Meteo-France)           | * | improve 4DVAR techniques        |
|    |                          | * |                                 |
|    |                          | 9 |                                 |
|    |                          | . |                                 |
|    |                          | 1 |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
|    |                          | * |                                 |
+----+--------------------------+---+---------------------------------+
| 14 | Mark Buehner             | 9 | Intercomparison of variational, |
| 50 |                          | . | EnkF, and ensemble 4D-Var data  |
|    | (Environment Canada)     | 2 | assimilation approaches in the  |
|    |                          |   | context of deterministic NWP    |
+----+--------------------------+---+---------------------------------+
| 15 | Joanna Pelc (TU Delft)   | 9 | Importance of input error in    |
| 15 |                          | . | reservoir simulations           |
|    | Justyna Przybysz-Jarnut  | 3 |                                 |
|    |                          |   |                                 |
|    | Remus Hanea              |   |                                 |
|    |                          |   |                                 |
|    | Arnold Heemink           |   |                                 |
|    |                          |   |                                 |
|    | Jan-Dirk Jansen          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 15 | Break                    |   |                                 |
| 40 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+
| 16 | Tamas Prager (?)         | 9 | TBA                             |
| 00 |                          | . |                                 |
|    |                          | 4 |                                 |
+----+--------------------------+---+---------------------------------+
| 16 | Malgorzata Paulina       | 9 | Model-reduced variational data  |
| 25 | Kaleta                   | . | assimilation for reservoir      |
|    |                          | 5 | models updating                 |
|    | (TU Delft)               |   |                                 |
|    |                          |   |                                 |
|    | Jan-Dirk Jansen          |   |                                 |
|    |                          |   |                                 |
|    | Remus Hanea              |   |                                 |
|    |                          |   |                                 |
|    | Arnold Heemink           |   |                                 |
+----+--------------------------+---+---------------------------------+
| 16 | Mariya Krymskaya         | 9 | Representer and accelerated     |
| 50 |                          | . | representer algorithms for      |
|    | (TU Delft)               | 6 | parameter estimation in         |
|    |                          |   | reservoir enginerring models    |
|    | Remus Hanea              |   |                                 |
|    |                          |   |                                 |
|    | Jan-Dirk Jansen          |   |                                 |
|    |                          |   |                                 |
|    | Arnold Heemink           |   |                                 |
+----+--------------------------+---+---------------------------------+
| 18 | Dinner                   |   |                                 |
| 30 |                          |   |                                 |
+----+--------------------------+---+---------------------------------+

+----+------------------------+----+---------------------------------+
| S  |                        |    |                                 |
| es |                        |    |                                 |
| si |                        |    |                                 |
| on |                        |    |                                 |
| 10 |                        |    |                                 |
|    |                        |    |                                 |
| Fr |                        |    |                                 |
| id |                        |    |                                 |
| ay |                        |    |                                 |
| M  |                        |    |                                 |
| or |                        |    |                                 |
| ni |                        |    |                                 |
| ng |                        |    |                                 |
| 22 |                        |    |                                 |
| M  |                        |    |                                 |
| ay |                        |    |                                 |
| 20 |                        |    |                                 |
| 09 |                        |    |                                 |
+----+------------------------+----+---------------------------------+
| S  |                        |    |                                 |
| es |                        |    |                                 |
| si |                        |    |                                 |
| on |                        |    |                                 |
| Ch |                        |    |                                 |
| ai |                        |    |                                 |
| r: |                        |    |                                 |
| ?? |                        |    |                                 |
+----+------------------------+----+---------------------------------+
| ** |                        |    |                                 |
| En |                        |    |                                 |
| se |                        |    |                                 |
| mb |                        |    |                                 |
| le |                        |    |                                 |
| Ka |                        |    |                                 |
| lm |                        |    |                                 |
| an |                        |    |                                 |
| F  |                        |    |                                 |
| il |                        |    |                                 |
| te |                        |    |                                 |
| rs |                        |    |                                 |
| ** |                        |    |                                 |
+----+------------------------+----+---------------------------------+
| 09 | Martin Verlaan (?)     | 10 | Iterative Kalman filtering      |
| 00 |                        | .1 |                                 |
+----+------------------------+----+---------------------------------+
| 09 | Sarah Dance (U.        | 10 | Ensemble square root filters    |
| 25 | Reading)               | .2 | and localization                |
|    |                        |    |                                 |
|    | R. Petrie              |    |                                 |
|    |                        |    |                                 |
|    | Nancy Nichols          |    |                                 |
+----+------------------------+----+---------------------------------+
| 09 | Qingnong Xiao (NCAR)   | 10 | Combining ensemble forecast     |
| 50 |                        | .3 | with 4D-Var and experiments     |
|    | Chengsi Li             |    | with WRF                        |
|    |                        |    |                                 |
|    | Bin Wang (LASG)        |    |                                 |
+----+------------------------+----+---------------------------------+
| 10 | Meral Demirtas (NCAR)  | 10 | A hybrid-ensemble transform     |
| 15 |                        | .4 | Kalman filter data assimilation |
|    | Dale Barker (Met       |    | system based extensive tests    |
|    | Office)                |    | over a Caribbean domain         |
|    |                        |    |                                 |
|    | Yongsheng Chen         |    |                                 |
|    |                        |    |                                 |
|    | Josh Hacker            |    |                                 |
|    |                        |    |                                 |
|    | Xiang-Yu Huang         |    |                                 |
|    |                        |    |                                 |
|    | Chris Snyder           |    |                                 |
|    |                        |    |                                 |
|    | Xuguang Wang (ESRL     |    |                                 |
|    | NOAA)                  |    |                                 |
+----+------------------------+----+---------------------------------+
| 10 | Break                  |    |                                 |
| 40 |                        |    |                                 |
+----+------------------------+----+---------------------------------+
| ** |                        |    |                                 |
| Co |                        |    |                                 |
| nc |                        |    |                                 |
| lu |                        |    |                                 |
| di |                        |    |                                 |
| ng |                        |    |                                 |
| R  |                        |    |                                 |
| em |                        |    |                                 |
| ar |                        |    |                                 |
| ks |                        |    |                                 |
| ** |                        |    |                                 |
+----+------------------------+----+---------------------------------+
| 11 | Ronald Errico (GMAO)   | ** | Why adjoint models              |
| 00 |                        | 10 |                                 |
|    |                        | .5 |                                 |
|    |                        | ** |                                 |
+----+------------------------+----+---------------------------------+
| 12 | Lunch                  |    |                                 |
| 00 |                        |    |                                 |
+----+------------------------+----+---------------------------------+