Complete Conference Book of Abstracts.
** Data may be preliminary and should not be quoted or distributed without first contacting the author **


David Skaggs Research Center, Room GC-402
325 Broadway, Boulder, Colorado 80305
April 30 and May 1, 2003

Wednesday, April 30, 2003 AGENDA

(Only presenter's name is given; please refer to abstract for complete author listing.)
(Click on presentation title to view abstract.)

Session 1 • Global Observations - R. Schnell
08:45 - 08:55 Welcome and Introduction
  D. Hofmann
08:55 - 09:40 Keynote Address: Pacific Plus: An Essential Addition to the Global Observing System
   A.E. (Sandy) MacDonald (NOAA Forecast Systems Laboratory, Director)
   (Also an introduction to the tour of Science on a Sphere at 16:00 Wednesday)
09:40 - 10:00 Challenges Facing Global Measurements of Atmospheric Composition
   L.A. Barrie (WMO, Switzerland)

• 10:00 - 10:30 Break

Session 2 • Global Observations (continued) - R. Schnell
10:30 - 10:50 The Global Climate Observing System (GCOS)
   M.J. Manton (BMRC, Australia)
10:50 - 11:10 Characterization of the Air Masses Reaching Cape Point Using 222Rn as Tracer
   E.-G. Brunke (South African Weather Service)
11:10 - 11:30 Introducing the WMO GAW World Calibration Centre for Nitrous Oxide
   H.E. Scheel (FZK, Germany)

• 11:30 - 13:00 Lunch

Session 3 • Global Observations (Continued) - E. Dutton
13:00 - 13:20 CMDL Baseline Observatory Facilities and Future Plans: A View from Spring 2003
   R. Schnell (CMDL)
13:20 - 13:40 Trinidad Head After One Year
   J.H. Butler (CMDL)
13:40 - 14:00 Results from the Trinidad Head Site During the ITCT-2K2 Field Study
   D.D. Parrish (NOAA Aeronomy Laboratory)

• 14:00 - 14:20 Break

Session 4 • Global Observations (Continued) - J. Butler
14:20 - 14:40 Core Atmospheric Measurements at the Summit, Greenland Environmental Observatory
   R.C. Bales (Univ. of Arizona)
14:40 - 15:00 Fine Aerosols at Mauna Loa Observatory during ACE-Asia, Spring 2001
   T.A. Cahill (Univ. of California)
15:00 - 15:20 Uncertainty and Bias of Surface Ozone Measurements at Selected Global Atmosphere Watch Sites
   J. Klausen (EMPA, Switzerland)
15:20 - 15:40 Improvements in the CMDL Trajectory Model
   J.M. Harris (CMDL)
15:40 - 16:00 Boundary Layer Aerosol Measurements Using a Bistatic CCD Camera Lidar
   J.E. Barnes (CMDL/MLO)

• 16:00 - 16:30 Tour of Science on a Sphere

• 16:30 - 18:30 Poster Session (Room GB-124)

Thursday, May 1, 2003 AGENDA

(Only presenter's name is given; please refer to abstract for complete author listing.)
(Click on presentation title to view abstract.)

Session 5 • Carbon Cycle - P. Tans
08:30 - 08:50 The Latitude Gradients of CO2 and 13C/12C
   P. Tans (CMDL)
08:50 - 09:10 Interannual Variation in the Atmospheric CO2 Growth Rate
   T.J. Conway (CMDL)
09:10 - 09:30 Is the Global Oceanic Carbon Sink Shrinking?
   J.B. Miller (CIRES, CMDL)
09:30 - 09:50 Global Carbon Flux Estimates from 1980 to 2001
   L. Bruhwiler (CMDL)

• 09:50 - 10:20 Break

Session 6 • Carbon Cycle (continued) - P. Tans
10:20 - 10:40 The Annual Cycle of Fossil-Fuel CO2 Emissions from the United States
   T.J. Blasing (Oak Ridge Nat. Lab.)
10:40 - 11:00 Annual Carbon Dioxide Cycle at a Boreal Site in Finland
   T. Aalto (Finnish Met. Inst.)
11:00 - 11:20 13C Isotopic Composition of CO2 in the Tropopause Region as Measured by CARIBIC
   C.A.M. Brenninkmeijer (Max Planck Inst. for Chemistry, Germany)
11:20 - 11:40 Are Emissions Inventories Consistent with Recent Observations of Atmospheric CH4?
   E.J. Dlugokencky (CMDL)

• 11:40 - 13:00 Lunch

Session 7 • Halocarbons - J. Elkins
13:00 - 13:20 Overview of 2002 Activities and Future Plans of the Halocarbons and other Atmospheric Trace Species (HATS) Group of CMDL
   J.W. Elkins (CMDL)
13:20 - 13:40 A Decline in Ozone-Depleting Organic Bromine
   S.A. Montzka (CMDL)
13:40 - 14:00 Emissions of Ozone-Depleting Substances in the Trans-Siberian Railway Corridor During Summer 2001
   D.F. Hurst (CIRES, CMDL)
14:00 - 14:20 The Impact of Tasmanian Biology on the Emission of Methyl Halides
   J.M. Cainey (Cape Grim Baseline Air Pollution Station, Tasmania)

• 14:20 - 14:40 Break

Session 8 • Aerosols and Radiation - J. Ogren
14:40 - 15:00 Highlights of Aerosol Research at CMDL
   J.A. Ogren (CMDL)
15:00 - 15:20 Measurements of Aerosol Optical Properties from Gosan, South Korea
   A. Jefferson (CIRES, CMDL)
15:20 - 15:40 Cloud Characteristics Determined from Solar Irradiance Data
   E. Dutton (CMDL)
15:40 - 16:00 Asian Dust Signatures at Barrow: Observed and Simulated
   G. Anderson (USAF, CMDL)

• 16:00 - 16:20 Break

Session 9 • Ozone - S. Oltmans
16:20 - 16:40 Recent Research in the CMDL Ozone and Water Vapor Group
   S.J. Oltmans (CMDL)
16:40 - 17:00 What Processes Determine Surface Ozone in Polar Regions?
   D. Helmig (Univ. of Colorado, INSTAAR)
17:00 - 17:20 Ozone Profiles Measured at South Pole Station During the 2002 Ozone Hole
   B.J. Johnson (CMDL)

• 18:00 Dinner at Southern Sun Pub and Brewery, 607 S. Broadway (Table Mesa)

Poster Session Wednesday, April 30, 2003 AGENDA

(Only presenter's name is given; please refer to abstract for complete author listing.)
(Click on presentation title to view abstract.)

• Aerosols, Radiation, and Transport
P1 Development of Aerosol Models for Radiative Flux Calculations at ARM Sites: Utility of Trajectory Clustering for Characterizing Aerosol Climatology
   E. Andrews (CIRES, CMDL)
P2 2002/2003 Results from the Barrow Arctic Mercury Study
   S.B. Brooks (NOAA/ATD, Oak Ridge, TN)
P3 Comparisons of Sunphotometer-Derived Optical Depths and Surface Radiation Measurements and Their Effects on the Aerosol Surface Forcing Efficiency Estimation
   S.-W. Kim (Seoul National Univ., Korea; CMDL)
P4 Broadband Shortwave Solar Radiation Monitoring: Current Performance and Expectations
   D. Nelson (CMDL)
P5 The Reno Aerosol Optics Study-Overview and Preliminary Results
   J.A. Ogren (CMDL)
P6 Validating Satellite-Derived Snow Temperatures on the Antarctic Plateau
   R.S. Stone (CIRES, CMDL)
• Carbon Cycle
P7 Tall Tower and Aircraft Measurements of Carbon Dioxide: Prospects for the North American Carbon Program (NACP)
   P. Bakwin (CMDL)
P8 Automated Sampling System for the Stable Isotopic Ratio Determination of Atmospheric CO2 at a Remote Site in Canada
   D. Ernst (Meteorological Service of Canada)
P9 High-Precision Monitoring Instrumentation for Background Levels of the Carbon Cycle Gases
   M. Hahn (CIRES, CMDL)
P10 A Web-Based Interactive Atmospheric Data Visualization Tool: Near-Real-Time Access to Data from the CMDL CCGG Observing Network
   K. Masarie (CMDL)
P11 Variability of Carbon Monoxide and Other Radiatively Important Trace Gases in the Free Troposphere
   P.C. Novelli (CMDL)
P12 Regional CO2 Flux Estimates for North America from Inverse Modeling
   W. Peters (CIRES, CMDL)
• Halocarbons
P13 Trends of Halocarbons and Implications for Total Chlorine
   G. Dutton (CIRES, CMDL)
P14 The Increasing Importance of Nitrous Oxide in Climate-Related Research
   J. Elkins (CMDL)
P15 Development of New Calibration Scales for CH3Br and CH3Cl
   B. Hall (CMDL)
P16 Atmospheric Sulfur Hexafluoride Still on the Increase
   D.J. Mondeel (CIRES, CMDL)
P17 LACE and PANTHER GC-ECD and GC-MSD Airborne Instruments
   F. Moore (CIRES, CMDL)
P18 The Radiatively Important Trace Species (RITS) Data Recovery Project
   J.D. Nance (CIRES, CMDL)
P19 In Situ Measurements by a New Gas Chromatograph-Mass Selective Detector (GC-MSD): A Progress Report
   J. Neu (CMDL)
P20 Total Equivalent Chlorine in the Stratosphere: 1991-2003
   P. Romashkin (CIRES, CMDL)
• Ozone
P21 The CU/NOAA Water Vapor Profiling Network Seed
   H. Vomel (CIRES, CMDL)
P22 Examination of Measured Total Ozone, 2001-Present, Derived from UV Spectral Irradiance Measurements and Dobson Ozone Spectrophotometers
   M.S. O'Neill (CIRES, CMDL)
• Other
P23 VOGNET: Continuous Monitoring of Particle Concentrations in “Vog” at Seven Hawaii Sites
   S. Ryan (CMDL/MLO)
P24 Snowfall/Blowing Snow Observations at CMDL/Barrow, 2002: Progress and Preliminary Result
   K. Sugiura (Frontier Obs. Res. System for Global Change, Japan)
P25 A Review of the Mauna Loa Observatory Radon-222 Database (1997-2002)
   W. Zahorowski (ANSTO, Australia)