# Presentation: 084128

## OverviewICARTT Jetstream 31 (J31) Data WorkshopPhil Russell & Peter Pilewskie 

**Overview****ICARTT Jetstream 31 (J31) Data Workshop****Phil Russell & Peter Pilewskie **

** ****Objectives of meeting**

** ****Structure of meeting**

## Objectives of Meeting 

_** **__**Goals the J31 team proposed to address in ICARTT**_

** ****Importance of data archive**

** ****Need to leave Boulder with list of planned presentations & journal papers**

## ICARTT: International Consortium for Atmospheric                           Research on Transport & Transformation

**ICARTT: ****International Consortium for Atmospheric ****                          Research on Transport & Transformation**

## Slide 4

## GOALS
Assess the radiative impact of the aerosols advecting from North America out over the Northwestern Atlantic Ocean.
Clear-sky Impact: Aerosol Direct Effect
Impact Via Clouds: Aerosol Indirect Effect

Quantify the relationships between aerosol concentration/composition and aerosol radiative impact. 

Contribute water spectral albedo measurements to help improve satellite aerosol retrievals

**GOALS**
- Assess the radiative impact of the aerosols advecting from North America out over the Northwestern Atlantic Ocean.
- Clear-sky Impact: Aerosol Direct Effect
- Impact Via Clouds: Aerosol Indirect Effect
- Quantify the relationships between aerosol concentration/composition and aerosol radiative impact.
- Contribute water spectral albedo measurements to help improve satellite aerosol retrievals

**J31 in INTEX-ITCT – Aerosol **_**Direct & Indirect**_** Radiative Effects **

## INTEX-ITCT-ICARTT Provides a Very Fertile Context For Aerosol-Climate Studies 

**INTEX-ITCT-ICARTT Provides a Very Fertile Context For Aerosol-Climate Studies**_** **_

**Nearly All The Important Aerosol Types****Good Mix of Cloudy & Clear Conditions—Direct & Indirect**_** **_

## P3

**P3**

**J31**

**Ronald H. Brown & Chebogue Point**

**Satellites**

**NOAA Lidar**

**DC8**

## Jetstream-31 (J31) in INTEX-ITCT

**Ames Earth Science Seminar**
**7 Oct 2004**

## AATS-14 Science Objectives

**Validate Satellites **
**Test Closure (Consistency) among Suborbital Results**
**Test Chemical-Transport Models Using AOD Profiles**
**Assess Regional Radiative Forcing by Combining Satellite and Suborbital Results**

**Deriving Aerosol Radiative Forcing from Simultaneously Measured Radiative Flux and AOD Gradients**
**Providing Over-Cloud AOD Spectra for Analysis with SSFR Measurements of Cloud Albedo; **
**Compare SSFR cloud property retrievals to satellites & study effect of over-cloud AOD on SSFR cloud property retrievals**
**Deriving Spectra of Aerosol Absorbing Fraction (1-SSA) from Spectra of Radiative Flux and AOD. Ron Brown 3-wvl PSAP & SSA from horiz grads**

**- **_**Joint with SSFR**_

- Lidar
- In situ
- ToA & surface forcing closure: CERES, MISR, ...

## ICARTT SSFR J-31 Objectives

**Cloud Remote Sensing and Aerosol Indirect Radiative Forcing**
- Retrieve cloud droplet radius, optical depth, and liquid water path
- Compare/validate with P-3 MIDAS, P-3 microphysics, with satellite retrievals (MODIS), microwave/radar retrievals from the Ron Brown.
- Influence of aerosols on cloud radiative forcing: AATS-14 extinction above cloud, RB lidar extinction below

## ICARTT SSFR J-31 Objectives

**Water-Leaving Irradiance: MISR Validation**
- MISR typically uses only the red and near-infrared “dark water” bands for its aerosol retrievals
- Ocean surface reflectance is ***assumed*** negligible in dark bands; not always negligible in the green and the blue, especially for low aerosol optical depth
- MISR team is developing an algorithm to simultaneously retrieve surface reflectance and aerosol properties over shallow polluted waters
- For low aerosol optical depth cases the sea surface albedo contributes the largest uncertainty.

## ICARTT SSFR J-31 Objectives

**Cloud-Free Column Closure Studies**
- Measuring spectrally and vertically resolved net solar irradiance  link aerosol radiative effects to optical, microphysical and chemical properties
- Determine column solar radiative boundary conditions for modeling studies
- Combine with AATS-14 aerosol optical depth spectra, derive spectra of aerosol absorption coefficient and single scattering albedo for thick polluted layers.
- Quantify aerosol direct radiative forcing

## Objectives of Meeting 

** ****Goals the J31 team proposed to address in ICARTT**

_** **__**Importance of data archive**_

** ****Need to leave Boulder with list of planned presentations & journal papers**

**http://www-air.larc.nasa.gov/missions/intexna/dataaccess.htm**

## Objectives of Meeting 

** ****Goals the J31 team proposed to address in ICARTT**

** ****Importance of data archive**

_** **__**Need to leave Boulder with list of planned presentations & journal papers**_

## Meetings with ICARTT Presentation Opportunities 

| Conference/
Meeting, Location | Dates | Abstract Dead- line | Special Features | Likely Attendees |
| --- | --- | --- | --- | --- |
| RV Brown NEAQS data workshop,
Boulder, CO | 8-9 Mar 2005 |  | Some data sets from the ship are now available at: http://saga.pmel.noaa.gov/NEAQS-ITCT/post_cruise_data/ . posting data to our data server (http://saga.pmel.noaa.gov/data/) in NASA-Ames format in the next couple of weeks. | Russell |
| J31 ICARTT Workshop,
Boulder, CO | 9-10 Mar 2005 |  | Wed 9 Mar: J31 only
Thur 10 Mar: J31 with collaborators from Ron Brown, DC-3, etc. | Bergstrom
Livingston
Redemann
Russell |
| Chebogue Point NEAQS data workshop,
Boulder, CO | 10-11 Mar 2005 |  |  |  |
| INTEX-A Science Team/Data Rev Working Grp mtg
Virginia Beach, VA  | 29 Mar - 1 Apr 2005 |  | INTEX will hold its internal data workshop to discuss the DC8 data. all ICARTT participants are invited
three full days on Tuesday, Wednesday, and Thursday, adjourn by midday on Friday | Redemann?
Russell |
| ICARTT WP-3D and DC-3 data workshop,
Boulder, CO | 11-13 Apr 2005 |  | emphasize scientific analysis of results. briefly review status of final data sets.  organize workshop around 20 min presentations (15 min prepared material + 5 min discussions). longer discussion periods at end of each session.  At your earliest convenience, please send us a title for any presentation(s) that you would like to give.  Our hope is that each presentation will catalyze a paper.  We hope that at least one representative from each measurement and modeling group can attend to speak to that groups measurements/ model results and their scientific interests with regard to analysis and publications  | Prepare example for Mike H to show |

**12-14 ****T, W,Th**_** **_

## Meetings with ICARTT Presentation Opportunities 

| Conference/
Meeting, Location | Dates | Abstract Deadline | Special Features | Likely Attendees |
| --- | --- | --- | --- | --- |
| ICARTT workshop on intercontinental transport,
Vienna, AUSTRIA | 24 Apr 2005 |  | Andreas Stohl: Start bringing together all the data from the various platforms involved in the Lagrangian experiment and where we can assess how successful we actually were.
Discuss joint research activities, publication plans, etc. | Redemann? |
| EGU general assembly,
Vienna, AUSTRIA. | 24-29 Apr 2005 | 21 Jan 2005 | http://www.copernicus.org/EGU/ga/egu05/index.htm
AS1.08 Clouds, Aerosols and Radiation
AS3 Atmospheric chemistry and aerosols
AS3.04 Vertical and long-range transport of trace gases and aerosols
AS3.09 Aerosol characterization by lidar networks: EARLINET and beyond
AS3.10 The atmosphere sounded by satellites
AS3.13 Recent Developments in Tropospheric Aerosol and Cloud Chemistry
BG1.08 Analysis and Characterization of Black
 Carbon in the Environment 
  Advances in atmospheric spectroscopy | Livingston
Redemann |
| Atmospheric Sciences and Air Quality Conference,
San Francisco, CA | 27-29 Apr 2005 | 22 Jan 2005 | www.ametsoc.org
*Aerosols *Air Quality Forecasting, *Transport of Asian pollutants and dust to North America, *Global changes in composition & climate, *Urban & regional impacts from global atmospheric composition & climate changes, *Specific field studies, e.g., ICARTT2004,  | Russell |

## Meetings with ICARTT Presentation Opportunities 

| Conference/
Meeting, Location | Dates | Abstract Deadline | Special Features | Likely Attendees |
| --- | --- | --- | --- | --- |
| Stohl IPY Campaign Planning,
Near Oslo, NORWAY | 23-24 May 2005 |  | Discuss plans to organize a major campaign in the Arctic during the International Polar Year (IPY), submission of a proposal to the IPY committee, how we plan to implement such a campaign, what is realistic and what is not, and how we intend to get the funding needed. | Singh? |
| 2005 Joint Assembly (AGU Spring Meeting)
New Orleans, Louisiana, USA. | 23 - 27 May 2005 | 10 Feb 2005 via web)
3 Feb 2005 (via postal mail) | AGU, SEG, NABS and SPD/AAS
emphasis on the unique region including the southeastern U.S., Caribbean, and Latin America
A03:Long-term Measurement Records Related 
to Global Stratospheric Constituent Change
SH08: A Critical Review of Total Solar Irradiance.
http://submissions5.agu.org/submission/entrance.asp |  |

## Meetings with ICARTT Presentation Opportunities 

| Conference/
Meeting, Location | Dates | Abstract Deadline | Special Features | Likely Attendees |
| --- | --- | --- | --- | --- |
| Gordon Res Conf on Radiation & Climate,
Waterville, ME | 24-29 July 2005 |  |  | Russell
Schmid? |
| IAMAS,
Beijing, CHINA | 2-11 Aug 2005 | 10 Mar 2005 | http://www.iamas2005.com or http://www.web.lasg.ac.cn/iamas2005/ 
A1 Aerosols, Radiation and Clouds
A2 Air Pollution over Asia
A3 Carbon Cycle and Climate
A5 Mineral Dust Aerosol
A6 Advanced Remote Sensing of Trace Constituents in the Atmosphere
A8 - Intercontinental Transport of Pollution
B2 Space-Based Remote Sensing of Atmosphere
E. STRAT- TROP INTERACTIONS | Bergstrom?
Redemann |
| ICARTT Study Workshop, 
Durham, NH  | 8-12 Aug 2005 |  | harmonize conclusions, decide papers and presentations, assign authors.  Theme coordinators solicit paper titles.  Plenary sessions to outline findings in themes followed by breakout sessions to further discuss findings and goals for themes.  Theme groups suggested: Lagrangian Expt & long-range transport, intercomparison studies, aerosol influence on radiation. | Russell
? |
| European Aerosol Conf. 2005,
Ghent, BELGIUM | 28 Aug-2 Sep 2005 |  | http://www.eac2005.be/ | Schmid |

## Meetings with ICARTT Presentation Opportunities 

| Conference/
Meeting, Location | Dates | Abstract Deadline | Special Features | Likely Attendees |
| --- | --- | --- | --- | --- |
| Atmospheric Spectroscopy Applications,
Reims, FRANCE | 6-8 Sep 2005 | Mar-May 2005? | http://www.univ-reims.fr/ASA2005/ |  |
| 5th Annual Meeting, European Meteorological Society,
Utrecht, Netherlands | 12-16 Sep 2005 | 10 May 2005 | held jointly with the 7th European Conference on Applications of Meteorology (ECAM)
www.copernicus.org/ems/2005 |  |
| American Association for Aerosol Research,
Austin, Texas | 17-21 Oct 2005 | Notify organizers by 14 Mar 2005 | special symposium on particulate matter related to ICARTT 2004
Ann Middlebrook (Ann.M.Middlebrook@noaa.gov)
Rob Griffin (rob.griffin@unh.edu) |  |
| AGU Fall Meeting,
San Francisco, CA | 5-9 Dec 2005 | 2 Sep 2005 | ICARTT special sessions (theme oriented) | Bergstrom
Livingston
Redemann
Russell
Schmid |
| CACGP,
South Africa | 2006 |  |  |  |
| IUGG General Assembly,
Perugia, Italy | 2-13 Jul 2007 |  |  | Redemann?
Schmid? |
|  |  |  |  |  |

## Structure of Meeting 

** ****Emphasize Intra-platform (J31*********) issues today, then Inter-platform issues Thursday *****Include satellite validation**

** ****Nav/met & Clear-sky (direct effect) this morning, cloudy (indirect) this afternoon**

## OverviewICARTT Jetstream 31 (J31) Data WorkshopPhil Russell & Peter Pilewskie 

_**End of Presentation**__**(Remaining slides are backup)**_

## R/V Ron Brown Operations Area

**R/V Ron Brown Operations Area**

## Flight Patterns, J31 in INTEX-ITCT

**Survey Vertical Profile. (2) Minimum- Altitude Transect. **
**(3) Parking Garage. (4) Above-Cloud Transect.**

**Flight Patterns, J31 in INTEX-ITCT**

## J31 Science Flights out of Portsmouth

| Flt 
No. | Date,
2004 | Track | Comments |
| --- | --- | --- | --- |
| 7 | 12 Jul | Western Gulf of Maine | Aqua underflight with profiles, Ron Brown rendezvous |
| 8 | 15 Jul | Western Gulf of Maine | Stratus clouds with Ron Brown & Terra, profiles with 2 RB sondes and Aqua  |
| 9 | 16 Jul | Western & Central Gulf of Maine | Profiles and near-surface leg with Aqua & near Ron Brown & its sonde |
| 10 | 17 Jul | Western Gulf of Maine | Profiles and near-surface leg with Terra & near Ron Brown  |
| 11 | 20 Jul | Western Gulf of Maine | Stratus clouds with Ron Brown & Terra (MISR local mode).  |
| 12 | 21 Jul | Western Gulf of Maine | Aerosol profiles and near-surface leg with Aqua. Aerosol gradient at several altitudes.  |
| 13 | 22 Jul | Western Gulf of Maine | Aerosol profiles and near-surface leg with Ron Brown, DC-8, & Terra (MISR local mode). |
| 14 | 23 Jul | Western Gulf of Maine | Aqua underflight with profiles |

## 26 Jul 2004 J31 Flight 15Water vapor profile from J31 Sunphotometer (AATS-14)

_**26 Jul 2004 J31 Flight 15**_**Water vapor profile from J31 Sunphotometer ****(AATS-14)**

**Black vertical lines delimit time and latitude of J31/DC-8 coincidence **

**AODs are from AATS-14 flying near surface below DC-8 **

## J31 Science Flights out of Portsmouth

| Flt 
No. | Date,
Jul 04 | Track | Comments |
| --- | --- | --- | --- |
| 7 | 12 | Western Gulf of Maine | Aqua underflight with profiles, Ron Brown rendezvous |
| 8 | 15 | Western Gulf of Maine | Stratus clouds with Ron Brown & Terra, profiles with 2 RB sondes and Aqua  |
| 9 | 16 | Western & Central Gulf of Maine | Profiles and near-surface leg with Aqua & near Ron Brown & its sonde |
| 10 | 17 | Western Gulf of Maine | Profiles and near-surface leg with Terra & near Ron Brown  |
| 11 | 20 | Western Gulf of Maine | Stratus clouds with Ron Brown & Terra (MISR local mode).  |
| 12 | 21 | Western Gulf of Maine | Aerosol profiles and near-surface leg with Aqua. Aerosol gradient at several altitudes?  |
| 13 | 22 | Western Gulf of Maine | Aerosol profiles and near-surface leg with Ron Brown, DC-8, & Terra (MISR local mode). |
| 14 | 23 | Western Gulf of Maine | Aqua underflight with profiles |

## J31 Flight 8, 15 July 2004

_**J31 Flight 8, 15 July 2004**_

## J31 Flight 8, 15 July 2004

_**J31 Flight 8, 15 July 2004**_

**MODIS AOD, COT & J31 Track: L. Gumley, A. Chu, C. Kittaka, B. Pierce**

**0.0        0.2        0.4         0.6        0.8         1.0**
**Aerosol Optical Depth (550 nm)**

**     ****0       10     20      30     40      50      60    70**
**Cloud Optical Thickness (670 nm)**

**MODIS Terra  1525 UT**

## For more info see:

**http://geo.arc.nasa.gov/sgg/INTEX/AATSdata_ICARTT.html**

**Contains everything I’ll show today plus links to:**

**Data archives**
**J31 Flight Reports**
**Presentations**
**Proposal **
**etc.**

## J31 Flight 8, 15 July 2004SSFR Results

_**J31 Flight 8, 15 July 2004**__**SSFR Results**_

## J31 Science Flights out of Portsmouth

| Flt 
No. | Date,
Jul 04 | Track | Comments |
| --- | --- | --- | --- |
| 7 | 12 | Western Gulf of Maine | Aqua underflight with profiles, Ron Brown rendezvous |
| 8 | 15 | Western Gulf of Maine | Stratus clouds with Ron Brown & Terra, profiles with 2 RB sondes and Aqua  |
| 9 | 16 | Western & Central Gulf of Maine | Profiles and near-surface leg with Aqua & near Ron Brown & its sonde |
| 10 | 17 | Western Gulf of Maine | Profiles and near-surface leg with Terra & near Ron Brown  |
| 11 | 20 | Western Gulf of Maine | Stratus clouds with Ron Brown & Terra (MISR local mode).  |
| 12 | 21 | Western Gulf of Maine | Aerosol profiles and near-surface leg with Aqua. Aerosol gradient at several altitudes?  |
| 13 | 22 | Western Gulf of Maine | Aerosol profiles and near-surface leg with Ron Brown, DC-8, & Terra (MISR local mode). |
| 14 | 23 | Western Gulf of Maine | Aqua underflight with profiles |

## J31 Flight 11, 20 July 2004: SSFR ResultsStratus cloud optical depth and effective radius retrieved from irradiance spectra above cloud 

_**J31 Flight 11, 20 July 2004: SSFR Results**_**Stratus cloud optical depth and effective radius retrieved from irradiance spectra above cloud**_** **_

## Cloud Retrievals: P-3

## MODIS Aqua 21 July 2004, 1805 UT“Smoke From Alaskan Wildfires”

**MODIS Aqua 21 July 2004, 1805 UT****“****Smoke From Alaskan Wildfires”**

## 14-channel Ames Airborne Tracking Sunphotometer (AATS-14). 
	Co-PIs: Phil Russell, Beat Schmid, Jens Redemann

Solar Spectral Flux Radiometer (SSFR). 
	PI: Peter Pilewskie

**	****Co-PIs: Phil Russell, Beat Schmid, Jens Redemann**
**Solar Spectral Flux Radiometer (SSFR). **
**	****PI: Peter Pilewskie**

**Jetstream-31 in INTEX-ITCT**_** **_

_**Primary Science Instruments**_

## 14-channel Ames Airborne Tracking 
	Sunphotometer (AATS-14)

**14-channel Ames Airborne Tracking **
**	****Sunphotometer (AATS-14)**

_**Jetstream-31 in INTEX-ITCT**__** **_

_**Measures**_**: ****Solar direct-beam transmission, T, at 14 wavelengths, ********, 353-2139 nm**
_**Data products**_
**Aerosol optical depth (AOD) at 13 ********, 353-2139 nm**
**Water vapor column content [using T(940 nm)]**
**Aerosol extinction, **
**	****340-2139 nm**
**Water vapor **
**	****density**

**When **
**A/C**
**flies **
**vertical **
**profiles**

- }

## NASA Ames Solar Spectral Flux Radiometer (SSFR)

- wavelength range:
- 	300 nm to 1700 nm
- spectral resolution ~
- 	8-12 nm
- simultaneous zenith
- 	and nadir viewing
- hemispheric FOV
- Accuracy: ~ 3%; precision: 0.5%
- Missions: FIRE/SHEBA, DOE ARM UAV (1999, 2000, 2002), PRIDE, SAFARI-2000, ACE-Asia, CRYSTAL-FACE, DOE Aerosol IOP

**Notes:**
Instrument specs; we measure flux/irradiance with hemispheric fov for radiation budget analysys. Narrow fov more appropriate for remote sensing.