**2004 ANNUAL MEETING OF THE\
NOAA CLIMATE MONITORING AND DIAGNOSTICS LABORATORY**

Boulder, Colorado

May 26 and May 27

David Skaggs Research Building, Room GC 401

325 Broadway

**AGENDA/ABSTRACTS**

*(Presenter\'s name only is given; see abstract for complete author
listing.)*

**Wednesday, May 26, 2004** Page No.

0830-0835 Welcome and Introduction -- *D.J. Hofmann*

0835-0920 *Keynote Address:* The NOAA Climate Research Program -- *C.J.
(Chet) Koblinsky (NOAA Office of Climate\
Programs, Director)*

***Session 1 Review of Past Year CMDL Research Highlights* -- *D.J.
Hofmann***

0920-0940 Recent Trends in the Growth Rate of Atmospheric Carbon Dioxide
-- *P.P. Tans (CMDL)* 1

0940-1000 On the Relation Between Atmospheric Carbonyl Sulfide and
Carbon Dioxide -- *S.A. Montzka (CMDL)* 2

1000-1020 Effects of Cloud Scavenging on Aerosol Single-Scattering
Albedo -- *J.A. Ogren (CMDL)* 3

**1020-1040 Break**

***Session 2 Review of Past Year CMDL Research Highlights (continued)*
-- *R.C. Schnell***

1040-1100 Potential Decadal Variations in Surface Solar Irradiance --
*E.G. Dutton (CMDL)* 4

1100-1120 Trends in Tropospheric Ozone -- *S.J. Oltmans (CMDL)* 5

1120-1140 New CMDL International Programs -- *R.C. Schnell (CMDL)* 6

1140-1200 Variation in the Global Direct Radiative Climate Forcing by
Well-Mixed Greenhouse Gases Over the Past\
25 Years -- *D.J. Hofmann (CMDL)* 7

**1200-1300 Lunch**

***Session 3 Carbon Cycle Greenhouse Gases -- P.P. Tans***

1300-1320 Influences on the Growth Rate of Atmospheric Methane -- *E.J.
Dlugokencky (CMDL)* 8

1320-1340 Global Warming Feedbacks from Methane Bubbling Along Expanding
North Siberian Lake Margins --*\
K.M. Walter (Institute of Arctic Biology)* 9

1340-1400 The CMDL Cooperative Global Air Sampling Network: Expansion
and Recent Results -- *T.J. Conway.\
(CMDL)* 10

**1400-1420 Break**

***Session 4 Carbon Cycle Greenhouse Gases (Continued)*** -- ***P.P.
Tans***

1420-1440 Measurements of CO~2~ Mixing Ratio In and Above the PBL Over
the Forest Area in Siberia -- *T. Machida\
(NIES, Japan)* 11

1440-1500 Accuracy of CO~2~ Emissions Estimates for the United States --
*T.J. Blasing (Oak Ridge Nat. Lab.)* 12

1500-1520 Estimating Monthly Gridscale CO~2~ Fluxes Using a
Geostatistical Inverse Modeling Approach --

*A.M. Michalak (UCAR Postdoctoral Fellow)* 13

1520-1540 Regional CO~2~ Flux Estimates for North America -- *W. Peters
(CIRES, CMDL)* 14

1540-1545 Award Presentation

**1600-1830 Poster Session** (Room GB-124)

**2004 ANNUAL MEETING OF THE\
NOAA CLIMATE MONITORING AND DIAGNOSTICS LABORATORY**

Boulder, Colorado

May 26 and May 27

David Skaggs Research Building, Room GC 401

325 Broadway

**AGENDA/ABSTRACTS**

*(Presenter\'s name only is given; see abstract for complete author
listing.)*

**Thursday, May 27, 2004** Page No.

***Session 5 Ozone and Water Vapor -- S.J. Oltmans***

0830-0850 GTN-P Monitoring Network: Detection of a 3°C Permafrost
Warming in Northern Alaska During the *\
*1990s -- *G.D. Clow (U.S. Geological Survey)* 15

0850-0910 Southern Hemisphere Additional Ozonesondes (SHADOZ): Data
Quality and Characteristics of Tropical\
Ozone Behavior -- *S.J. Oltmans (CMDL)* 16

0910-0930 Boundary-Layer Ozone Production at South Pole, Antarctica --
*D. Helmig (University of Colorado,\
INSTAAR, PAOS)* 17

0930-0950 Accuracy and Performance Requirements for Frostpoint
Hygrometers in Trend Detection and Network\
Operations -- *H. Vömel (CIRES, CMDL)* 18

**0950-1020 Break**

***Session 6 Aerosols and Radiation -- J.A. Ogren***

1020-1040 Correlated Trends in Western Arctic Snow Cover and Sea Ice
Distribution -- *R.S. Stone\
(CIRES, CMDL)* 19

1040-1100 Observation of Enhanced Water Vapor in the Asian Dust Layer
and Its Effect on the Atmospheric\
Radiative Heating and Cooling Rates -- *S.-W. Kim (Seoul National
Univ.)* 20

1100-1120 Dynamics of Mercury in the Barrow Springtime Polar Environment
-- *S.B. Brooks (NOAA ATD,\
Oak Ridge, TN)* 21

1120-1140 Tests of Long-Term Stability in IMPROVE Trend Measurements --
*W.H. White (Crocker Nuclear Lab.,\
University of California, Davis)* 22

**1140-1300 Lunch**

***Session 7 Global Observations and Related Topics -- E.G. Dutton and
R.C. Schnell***

1300-1320 Using Trajectories as an Air Transport Database for Studies of
Atmospheric Monitoring -- *J. Zeng\
(NIES, Japan)* 23

1320-1340 Mt. Kenya GAW Station Setup and Initial Results -- *J.K.
Rotich (Kenya Meteorological Dept.)* 24

1340-1400 Station Report: GEOSummit, the Greenland Environmental
Observatory -- *J.F. Burkhart\
(GEOSummit, University of California, Merced)* 25

1400-1420 Transcontinental Observations into the Chemistry of the
Atmosphere (TROICA): Main Results\
and Prospects -- *N.F. Elansky (A.M. Obukhov Institute of Atmospheric
Physics, Russia)* 26

1420-1440 Quality Assurance/Science Activity Centre Germany as Part of
WMO/GAW: Overview on Structure\
and Responsibilities -- *K. Mannschreck (UFS Schneefernerhaus, Germany)*
27

**1440-1500 Break**

**2004 ANNUAL MEETING OF THE\
NOAA CLIMATE MONITORING AND DIAGNOSTICS LABORATORY**

Boulder, Colorado

May 26 and May 27

David Skaggs Research Building, Room GC 401

325 Broadway

**AGENDA/ABSTRACTS**

*(Presenter\'s name only is given; see abstract for complete author
listing.)*

**Thursday, May 27, 2004 (continued)** Page No.

***Session 8 Halocarbons and N~2~O -- J.H. Butler***

1500-1520 Monthly Regional Estimates of the Global N~2~O Surface Flux
from 1997-2001 -- *A. Hirsch\
(CIRES, CMDL)* 28

1520-1540 Improvements in N~2~O Calibration of Secondary Compressed Gas
Standards -- *B.D. Hall (CMDL)* 29

1540-1600 A Significant and Substantial Decrease in Tropospheric Organic
Bromine -- *J.H. Butler (CMDL)* 30

1600-1620 Persistent Emissions of Halocarbons in the United States of
America and Canada -- *D.F. Hurst\
(CIRES, CMDL)* 31

1620-1640 Development of In Situ Gas Chromatograph -- Mass Selective
Detector for the Purpose of Measuring*\
*Long-Range Pollution Transport from Asia -- *J.L. Neu (NRC Fellow)* 32