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Application of a Differential Fuel-Cell Analyzer for Measuring Atmospheric Oxygen Variations

Source: Journal of Atmospheric and Oceanic Technology:;2007:;volume( 024 ):;issue: 001:;page 82

Author(s): Stephens, Britton B.; Bakwin, Peter S.; Tans, Pieter P.; Teclaw, Ron M.; Baumann, Daniel D.

Publisher: American Meteorological Society

Abstract: A commercially available differential fuel-cell analyzer has been adapted to make field-based ppm-level measurements of atmospheric O2 variations. With the implementation of rapid calibrations and active pressure and flow ...

Cloud Phase and Relative Humidity Distributions over the Southern Ocean in Austral Summer Based on In Situ Observations and CAM5 Simulations

Source: Journal of Climate:;2019:;volume 032:;issue 010:;page 2781

Author(s): D’Alessandro, John J.; Diao, Minghui; Wu, Chenglai; Liu, Xiaohong; Jensen, Jorgen B.; Stephens, Britton B.

Publisher: American Meteorological Society

Abstract: AbstractCloud phase and relative humidity (RH) distributions at ?67° to 0°C over the Southern Ocean during austral summer are compared between in situ airborne observations and global climate simulations. A scale-aware ...

An Evaluation of Calibration Techniques for In Situ Carbon Dioxide Measurements Using a Programmable Portable Trace-Gas Measuring System

Source: Journal of Atmospheric and Oceanic Technology:;2009:;volume( 026 ):;issue: 002:;page 291

Author(s): Burns, Sean P.; Delany, Anthony C.; Sun, Jielun; Stephens, Britton B.; Oncley, Steven P.; Maclean, Gordon D.; Semmer, Steven R.; Schröter, Joel; Ruppert, Johannes

Publisher: American Meteorological Society

Abstract: The construction and deployment of a portable trace-gas measurement system (TGaMS) is described. The air-collection system (dubbed HYDRA) collects air samples from 18 different locations and was connected to either one or ...

Atmospheric Carbon Dioxide Variability in the Community Earth System Model: Evaluation and Transient Dynamics during the Twentieth and Twenty-First Centuries

Source: Journal of Climate:;2013:;volume( 026 ):;issue: 013:;page 4447

Author(s): Keppel-Aleks, Gretchen; Randerson, James T.; Lindsay, Keith; Stephens, Britton B.; Keith Moore, J.; Doney, Scott C.; Thornton, Peter E.; Mahowald, Natalie M.; Hoffman, Forrest M.; Sweeney, Colm; Tans, Pieter P.; Wennberg, Paul O.; Wofsy, Steven C.

Publisher: American Meteorological Society

Abstract: hanges in atmospheric CO2 variability during the twenty-first century may provide insight about ecosystem responses to climate change and have implications for the design of carbon monitoring programs. This paper describes ...

A Multiscale and Multidisciplinary Investigation Of Ecosystem–Atmosphere CO2 Exchange Over the Rocky Mountains of Colorado

Source: Bulletin of the American Meteorological Society:;2010:;volume( 091 ):;issue: 002:;page 209

Author(s): Sun, Jielun; Oncley, Steven P.; Burns, Sean P.; Stephens, Britton B.; Lenschow, Donald H.; Campos, Teresa; Watt, Andrew S.; Monson, Russell K.; Moore, David J. P.; Hu, Jia; Tschudi, Mark; Schimel, David S.; Aulenbach, Steven; Sacks, William J.; De Wekker, Stephan F. J.; Lai, Chun-Ta; Lamb, Brian; Allwine, Eugene; Coons, Teresa; Ojima, Dennis; Ellsworth, Patrick Z.; Sternberg, Leonel S. L.; Zhong, Sharon; Clements, Craig; Anderson, Dean E.

Publisher: American Meteorological Society

Abstract: A significant fraction of Earth consists of mountainous terrain. However, the question of how to monitor the surface?atmosphere carbon exchange over complex terrain has not been fully explored. This article reports on ...

The O2/N2 Ratio and CO2 Airborne Southern Ocean Study

Source: Bulletin of the American Meteorological Society:;2017:;volume 099:;issue 002:;page 381

Author(s): Stephens, Britton B.; Long, Matthew C.; Keeling, Ralph F.; Kort, Eric A.; Sweeney, Colm; Apel, Eric C.; Atlas, Elliot L.; Beaton, Stuart; Bent, Jonathan D.; Blake, Nicola J.; Bresch, James F.; Casey, Joanna; Daube, Bruce C.; Diao, Minghui; Diaz, Ernesto; Dierssen, Heidi; Donets, Valeria; Gao, Bo-Cai; Gierach, Michelle; Green, Robert; Haag, Justin; Hayman, Matthew; Hills, Alan J.; Hoecker-Martínez, Martín S.; Honomichl, Shawn B.; Hornbrook, Rebecca S.; Jensen, Jorgen B.; Li, Rong-Rong; McCubbin, Ian; McKain, Kathryn; Morgan, Eric J.; Nolte, Scott; Powers, Jordan G.; Rainwater, Bryan; Randolph, Kaylan; Reeves, Mike; Schauffler, Sue M.; Smith, Katherine; Smith, Mackenzie; Stith, Jeff; Stossmeister, Gregory; Toohey, Darin W.; Watt, Andrew S.

Publisher: American Meteorological Society

Abstract: AbstractThe Southern Ocean plays a critical role in the global climate system by mediating atmosphere?ocean partitioning of heat and carbon dioxide. However, Earth system models are demonstrably deficient in the Southern ...