First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) MAGE Oceanus Sulfur in the Ocean DataEntry ID: FIRE_AX_MAGE_OCN_SEA
Abstract: The First ISCCP Regional Experiments have been designed to improve data products and cloud/radiation parameterizations used in general circulation models (GCMs). Specifically, the goals of FIRE are (1) to improve the basic understanding of the interaction of physical processes in determining life cycles of cirrus and marine stratocumulus systems and the radiative properties of these clouds during ... their life cycles and (2) to investigate the interrelationships between the ISCCP data, GCM parameterizations, and higher space and time resolution cloud data.
To-date, four intensive field-observation periods were planned and executed: a cirrus IFO (October 13 - November 2, 1986); a marine stratocumulus IFO off the southwestern coast of California (June 29 - July 20, 1987); a second cirrus IFO in southeastern Kansas (November 13 - December 7, 1991); and a second marine stratocumulus IFO in the eastern North Atlantic Ocean (June 1 - June 28, 1992). Each mission combined coordinated satellite, airborne, and surface observations with modeling studies to investigate the cloud properties and physical processes of the cloud systems.
The ASTEX/MAGE experiment is a multinational effort to improve our capability for studying cloud-chemistry interactions and the air/sea fluxes that affect them. The primary purpose of ASTEX (with which MAGE collaborated) was to study the factors influencing the formation and dissipation of marine clouds. The specific goals of the MAGE atmospheric chemistry experiment in ASTEX included:
- Develop and test a Lagrangian strategy for studying chemical and meteorological evolution in a tagged airmass, using ships, balloons, and aircraft.
- Develop and test new techniques for estimating trace-gas and aerosol fluxes across the air/sea interface by comparison with traditional approaches.
- Evaluate the impact of marine and continental aerosols on the formation and dissipation of stratocumulus clouds.
- Compare the impacts of natural and anthropogenic sulphur, halogens, and hydrocarbons on marine aerosol chemistry.
- Gain experience with multi-national and multi-agency field experiments as a means for addressing global tropospheric chemistry issues.
Data were derived directly from ion chromatograms recorded from the ship and stored in liquid nitrogen for later analysis. Concentrations were calculated from the standard concentrations and the peak height ratio of the standard and ambient isotopomers in the ion chromatograms.
Start Date: 1992-05-31Stop Date: 1992-06-20
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Role: TECHNICAL CONTACT
Phone: (215) 895-2640
Fax: (215) 895-1980
Email: arb at ac1.chemistry.drexel.edu
Drexel University Dept. of Chemistry 32nd and Chestnut Street
Province or State: PA
Postal Code: 19104
Role: DIF AUTHOR
Email: support-asdc at earthdata.nasa.gov
NASA Langley Atmospheric Science Data Center User and Data Services NASA Langley Research Center Mail Stop 157D
Province or State: VA
Postal Code: 23681-2199
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Creation and Review Dates
Last DIF Revision Date: 2014-04-16