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The ConvectiveTransport of ActiveSpecies in theTropics (CONTRAST)Experiment Laura L. PanE. AtlasR. J. Salawitch2016 год

The Convective Transport of Active Species in the Tropics (CONTRAST) Experiment
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Аннотация: Abstract The Convective Transport of Active Species in the Tropics (CONTRAST) experiment was conducted from Guam (13.5°N, 144.8°E) during January–February 2014. Using the NSF/NCAR Gulfstream V research aircraft, the experiment investigated the photochemical environment over the tropical western Pacific (TWP) warm pool, a region of massive deep convection and the major pathway for air to enter the stratosphere during Northern Hemisphere (NH) winter. The new observations provide a wealth of information for quantifying the influence of convection on the vertical distributions of active species. The airborne in situ measurements up to 15-km altitude fill a significant gap by characterizing the abundance and altitude variation of a wide suite of trace gases. These measurements, together with observations of dynamical and microphysical parameters, provide significant new data for constraining and evaluating global chemistry–climate models. Measurements include precursor and product gas species of reactive halogen compounds that impact ozone in the upper troposphere/lower stratosphere. High-accuracy, in situ measurements of ozone obtained during CONTRAST quantify ozone concentration profiles in the upper troposphere, where previous observations from balloonborne ozonesondes were often near or below the limit of detection. CONTRAST was one of the three coordinated experiments to observe the TWP during January–February 2014. Together, CONTRAST, Airborne Tropical Tropopause Experiment (ATTREX), and Coordinated Airborne Studies in the Tropics (CAST), using complementary capabilities of the three aircraft platforms as well as ground-based instrumentation, provide a comprehensive quantification of the regional distribution and vertical structure of natural and pollutant trace gases in the TWP during NH winter, from the oceanic boundary to the lower stratosphere.
Год издания: 2016
Авторы: Laura L. Pan, E. Atlas, R. J. Salawitch, Shawn Honomichl, James F. Bresch, William J. Randel, E. C. Apel, Rebecca S. Hornbrook, A. J. Weinheimer, Daniel C. Anderson, Stephen Andrews, Sunil Baidar, Stuart P. Beaton, T. Campos, Lucy J. Carpenter, Dexian Chen, Barbara Dix, Valeria Donets, Samuel R. Hall, T. F. Hanisco, Cameron R. Homeyer, L. G. Huey, J. B. Jensen, L. Kaser, Douglas E. Kinnison, Theodore K. Koenig, Jean‐François Lamarque, C. Liu, Jiali Luo, Zhengzhao Luo, D. D. Montzka, Julie M. Nicely, R. B. Pierce, D. D. Riemer, Thomas Robinson, P. A. Romashkin, Alfonso Saiz‐Lopez, S. Schauffler, Owen H. Shieh, Meghan Stell, Kirk Ullmann, G. Vaughan, Rainer Volkamer, Glenn M. Wolfe
Издательство: American Meteorological Society
Источник: Bulletin of the American Meteorological Society
Ключевые слова: Atmospheric Ozone and Climate, Atmospheric chemistry and aerosols, Atmospheric and Environmental Gas Dynamics
Другие ссылки: Bulletin of the American Meteorological Society (HTML)
Maryland Shared Open Access Repository (USMAI Consortium) (PDF)
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