ASDC | SEAC4RS_Merge_Data

SEAC4RS Level 3

Entry Title: SEAC4RS Merge Data Files

Entry ID: SEAC4RS_Merge_Data_1

Aerosols

Description

SEAC4RS_Merge_Data are pre-generated merge data files collected during the Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEA4CRS) airborne field study. This product contains merged data products collected from instruments onboard the DC-8 and ER-2 aircrafts. Data collection for this product is complete.

Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS) airborne field study was conducted in August and September of 2013. The field operation was based in Houston, Texas. The primary SEAC4RS science objectives are: to determine how pollutant emissions are redistributed via deep convection throughout the troposphere; to determine the evolution of gases and aerosols in deep convective outflow and the implications for UT/LS chemistry; to identify the influences and feedbacks of aerosol particles from anthropogenic pollution and biomass burning on meteorology and climate through changes in the atmospheric heat budget (i.e., semi-direct effect) or through microphysical changes in clouds (i.e., indirect effects); and lastly, to serve as a calibration and validation test bed for future satellite instruments and missions.

The airborne observational data were collected from three aircraft platforms: the NASA DC-8, ER-2, and SPEC LearJet. Both the NASA DC-8 and ER-2 aircraft were instrumented for comprehensive in-situ and remote sensing measurements of the trace gas, aerosol properties, and cloud properties. In addition, radiative fluxes and meteorological parameters were also recorded. The NASA DC-8 was mostly responsible for tropospheric sampling, while the NASA ER-2 was operating in the lower stratospheric regime. The SPEC LearJet was dedicated to in-situ cloud characterizations. To accomplish the science objectives, the flight plans were designed to investigate the influence of biomass burning and pollution, their temporal evolution, and ultimately, impacts on meteorological processes which can, in turn, feedback on regional air quality. With respect to meteorological feedbacks, the opportunity to examine the impact of polluting aerosols on cloud properties and dynamics was of particular interest.

DOI

10.5067/ASDC/SUBORBITAL/SEAC4RS_Merge_Data_1

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PUBLICATIONS

SEAC4RS Draft Plan

SEAC4RS Overview Paper

SEAC4RS/DC3 Data Management Plan

From GCMD Science Keywords:

U/V WIND COMPONENTS > UPPER LEVEL WINDS
WIND DIRECTION > UPPER LEVEL WINDS
NITRIC OXIDE > NITROGEN COMPOUNDS
SULFUR DIOXIDE > SULFUR COMPOUNDS
SURFACE WINDS
ATMOSPHERIC CARBON MONOXIDE > CARBON AND HYDROCARBON COMPOUNDS
DEW POINT TEMPERATURE > WATER VAPOR INDICATORS
NITROGEN OXIDES > NITROGEN COMPOUNDS
PHOTOLYSIS RATES > PHOTOCHEMISTRY
CHLORINATED HYDROCARBONS > CARBON AND HYDROCARBON COMPOUNDS
AEROSOL BACKSCATTER
RELATIVE HUMIDITY > HUMIDITY > WATER VAPOR INDICATORS
TRACE GASES/TRACE SPECIES
CLOUD CONDENSATION NUCLEI
ALTITUDE
SULFATE PARTICLES
WIND SPEED > SURFACE WINDS
AEROSOL EXTINCTION
NITROGEN DIOXIDE > NITROGEN COMPOUNDS
ATMOSPHERIC CARBON DIOXIDE > CARBON AND HYDROCARBON COMPOUNDS
ORGANIC PARTICLES
NON-METHANE HYDROCARBONS/VOLATILE ORGANIC COMPOUNDS > CARBON AND HYDROCARBON COMPOUNDS
NITRATE PARTICLES
WIND DIRECTION > SURFACE WINDS
WIND SPEED > UPPER LEVEL WINDS
CARBON AND HYDROCARBON COMPOUNDS
UPPER LEVEL WINDS
ATMOSPHERIC WATER VAPOR
U/V WIND COMPONENTS > SURFACE WINDS
WATER VAPOR > WATER VAPOR INDICATORS
NITROGEN COMPOUNDS
AEROSOLS

Data Distribution

File Format(s):

ICARTT

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Spatial Information

Spatial Coverage: (S: 15, N: 53), (W: -126, E: -79)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

NORTH AMERICA UNITED STATES OF AMERICA ALABAMA KANSAS GEORGIA FLORIDA MISSISSIPPI OKLAHOMA TENNESSEE NORTHERN HEMISPHERE WESTERN HEMISPHERE VERTICAL LOCATION TROPOSPHERE COLORADO MISSOURI NEW MEXICO STRATOSPHERE

Temporal Information

Temporal Coverage: 2013-08-06 - 2013-09-24

Platforms

Jet

NASA DC-8

NASA Douglas DC-8

Computer

NASA ER-2

NASA Earth Resources-2

Computer

Metadata Dates

Created on 2021-04-05

Last updated on 2023-06-08