FIRE Level 2
Entry Title: First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) MAGE Oceanus Sulfur in the Air Data

Entry ID: FIRE_AX_MAGE_OCN_AIR_1
Aerosols Clouds Radiation Budget Field Campaigns
Description

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 samples collected on the ship and stored in liquid nitrogen for later analysis. Concentrations were calculated from the standard concentration and the peak height ratio of the standard and ambient isotopomers in the ion chromatograms. Uncertainties were estimated from a propagation of errors calculation which considers estimated error in the standard concentration and signal-to-noise derived error.

DOI

10.5067/ASDC_DAAC/FIRE/0035

View Citations
Keywords

From GCMD Science Keywords:
  • SULFUR DIOXIDE > SULFUR COMPOUNDS
  • TRACE GASES/TRACE SPECIES
  • SULFATE PARTICLES
  • SULFATE > SULFUR COMPOUNDS
  • GC-MS (Gas Chromatograph Mass Spectrometer)
  • Oceanus
  • Sulfur Dioxide (SO2)
  • Sulfur Dioxide Concentration
Data Distribution

File Format(s):

Native

Note: "Get Dataset" is a link to our recommended order method. The down arrow will show you additional options.

Spatial Information

spatial-coverage-map
Spatial Coverage: (30, 39), (-25, -21)
Spatial Coverage Type: Horizontal
Coordinate System: Geodetic
Granule Spatial Representation: Geodetic
Locations

ATLANTIC OCEAN NORTH ATLANTIC OCEAN MID-LATITUDE BOUNDARY LAYER TROPOSPHERE AZORES
Temporal Information

Temporal Coverage: 1992-06-03 - 1992-06-18
Temporal Resolution: Daily
Platforms

In Situ Ocean-based Platforms
SHIPS
Spectrometers
MASS SPECTROMETERS
GAS CHROMATOGRAPHS
Metadata Dates

Created on 2000-03-16
Last updated on 2019-10-23