CMDL Summary Report #25
Table of Contents
1. Observatory, Meteorology, and Data Management Operations
1.1.1. Operations
1.1.2. Programs1.2.1. Operations
1.2.2. Programs1.3.1. Operations
1.3.2. Programs1.4.1. Operations
1.4.2. Programs1.5. Meteorological Measurements
1.5.1. Meteorology Operations
1.5.2. Station Climatologies
2. Carbon Cycle
2.2.1. In Situ Carbon Dioxide Measurements
2.2.2. Flask Sample Carbon Dioxide Measurements
2.2.3. Carbon Dioxide Standards and Reference Gas Calibrations
2.2.4. Measurements of Stable Isotopes of Atmospheric CO22.3.1. In Situ Methane Measurements
2.3.2. Measurements of Methane in Discrete Samples
2.3.3. Measurement of 13C/12C of Methane by Mass Spectrometry
2.3.4. 3C/12C and D/H Isotopic Ratio Analysis of Methane by Infrared Spectroscopy2.4.1 Measurements of Carbon Monoxide
2.4.2. CO Reference Gases2.5. Nitrous Oxide and Sulfur Hexafluoride
2.6. Measurements on Tall Towers
3. Aerosols and Radiation
3.1. Aerosol Monitoring
3.1.1. Scientific Background
3.1.2. Experimental Methods
3.1.3. Annual Cycles
3.1.4. Long-Term Trends
3.2. Solar and Thermal Atmospheric Radiation
3.2.1. Radiation Measurements
3.2.2. Solar Radiation Calibration Facility
3.2.3. Aerosol Optical Depth Remote Sensing
3.2.4. MLO and Boulder UV Spectroradiometers
3.2.5. Broadband UV
3.2.6. Baseline Surface Radiation Network
3.2.7. Barrow Snow Melt Date
3.2.8. Arctic UV Monitoring
3.2.9. Pyrgeometer Comparison
3.2.10 Rayleigh Optical Depth Calculations
3.2.11 Data Processing
4. Ozone and Water Vapor
�4.1. Continuing Programs
4.1.1. Total Ozone Observations
4.1.2. Umkehr Observations
4.1.3. Calibration of Dobson Spectrophotometers
4.1.4. Surface Ozone
4.1.5. Ozonesondes
4.1.6. Atmospheric Water Vapor
4.1.7. Atmospheric Transport
4.1.8. Stratospheric Aerosols4.2. Special Projects
4.2.1. Evidence for the Influence of Biomass Burning on Tropospheric Ozone in Both the Eastern and Western Tropical Pacific
4.2.2. Water Vapor and Ozone Observations at San Crist�bal, Galapagos
4.2.3. Evidence of O3 Titration During BRW Winter Dark Periods
4.2.4. Analysis of CO and O3 Data from Cape Point Observatory (1994-1998)
4.2.5. Laboratory Testing of ECC Ozonesondes
4.2.6. South Pole: Triple Ozonesonde Flights
5. Halocarbons and other Atmospheric Trace Species
5.1. Continuing Programs
5.1.1. Introduction
5.1.2. Flask Samples
5.1.3. In Situ Gas Chromatograph Measurements
5.1.4. Gravimetric Standards5.2. Airborne Projects
5.2.1. Airborne Chromatograph for Atmospheric Trace Species (ACATS-IV)
5.2.2. Lightweight Airborne Chromatograph Experiment (LACE)
5.2.3. PAN and other Trace Hyrohalocompounds Experiment (PANTHER)
6. Cooperative Programs
UV Spectroradiometer Monitoring Program:� Influence of Total Ozone, Cloud Cover and Surface Albedo on UV Doses in Barrow, Alaska
G. Bernhard, C.R. Booth, J.C. Ehramjian, S.A. Lynch, and V.V. QuangWhole Air Sampling at Barrow, Alaska
D.R. Blake and F.S. Rowland6Correlation Between Anthropogenic Aerosols and Gases at MLO
T.A. Cahill, S.S. Cliff, T. M. Cahill, and K.D. PerryNIWA Lauder NDSC UV/Visible Measurements at the Mauna Loa Observatory
P. JohnsonOperation of Brewer Instruments at Mauna Loa Observatory
J.B. KerrIsotopic Studies of Carbon Monoxide at Mauna Loa
J.E. MakInterpreting Seasonal Cycles of Atmospheric Oxygen and Carbon Dioxide Concentrations at American Samoa Observatory
A.C. Manning, R.F. Keeling, and L.E. KatzArtificial Windshielding of Precipitation Gauges in the Arctic
R.J. McClureInvestigation of the Transfer Function between Atmosphere and Snow Concentrations of Hydrogen Peroxide at South Pole
J.R. McConnell and R.C. BalesStratospheric Ozone Climatology from Lidar Measurements at Mauna Loa
S. McDermid, T. Leblanc, R. Cageao, and D. Walsh0Microwave Measurements of Middle Atmospheric Water Vapor from Mauna Loa, 1996-2000
G.E. Nedoluha, R.M. Bevilacqua, R.M. Gomez, and B.C. HicksCarbon Flux Using Eddy Covariance Methodology in Arctic Coastal Wet Sedge Tundra
W.C. Oechel, R. Zulueta, and H. KwonPreliminary Intercomparison Results from the NDSC Microwave Ozone Profiling Instrument at Mauna Loa Observatory
A. Parrish, I.S. Boyd, B.J. Connor, I.S. McDermid, S. Oltmans, J J. Tsou, and J M. ZawodnyAdvanced Global Atmospheric Gases Experiment (AGAGE)
R.G. Prinn, R.F. Weiss, D.M. Cunnold P.J. Fraser, and P.G. SimmondsWinter Sampling of Shallow Firn Air at the South Pole to Understand Processes Affecting Firn Atmospheric Histories and Ice Core Gas Records
J.P. SeveringhausBarrow Magnetic Observatory
J. Townshend
7. Publications and Presentations by CMDL Staff, 1998-1999
8. Specialized Abbreviations and Acronyms