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Description

The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In combination with the Advanced Microwave Sounding Unit (AMSU) AIRS constitutes an innovative atmospheric sounding group of infrared and microwave sensors. The L3 support products are similar to the L3 standard products but contain fields which are not fully validated, or are inputs or intermediary values.

The value for each grid box is the sum of the values that fall within the 1x1 area divided by the number of points in the
box.

Product Summary

Platforms
Aqua
Instruments
AIRS ,
AMSU-A
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2002-08-31 to 2016-09-25
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C1701805677-GES_DISC
Data State
COMPLETE
Number of Files/Granules
5095
Processing Level
3
Published
Updated
Science Keywords
Carbon Monoxide ,
Geopotential Height ,
Tropopause ,
Methane ,
Atmospheric Ozone ,
Surface Pressure ,
Outgoing Longwave Radiation ,
Air Temperature ,
Upper Air Temperature ,
Humidity ,
Total Precipitable Water ,
Water Vapor ,
Water Vapor Profiles ,
Cloud Droplet Concentration/Size ,
Cloud Liquid Water/Ice ,
Cloud Optical Depth/Thickness ,
Cloud Height ,
Cloud Top Pressure ,
Cloud Top Temperature ,
Cloud Vertical Distribution ,
Cloud Types ,
Precipitation Rate ,
Emissivity ,
Skin Temperature ,
Sea Surface Temperature

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

AIRS Project. (2020). Aqua/AIRS L3 Daily Support Product (AIRS+AMSU) 1 degree x 1 degree V7.0 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/C5N6CP67XM1E Date Accessed: 2025-12-13

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
bndry_lyr_top_A bndry_lyr_top_A N/A float32 -9999 N/A N/A
bndry_lyr_top_A_ct bndry_lyr_top_A_ct N/A float32 -9999 N/A N/A
bndry_lyr_top_A_sdev bndry_lyr_top_A_sdev N/A float32 -9999 N/A N/A
bndry_lyr_top_D bndry_lyr_top_D N/A float32 -9999 N/A N/A
bndry_lyr_top_D_ct bndry_lyr_top_D_ct N/A float32 -9999 N/A N/A
bndry_lyr_top_D_sdev bndry_lyr_top_D_sdev N/A float32 -9999 N/A N/A
CH4CDSup_A CH4CDSup_A N/A float32 -9999 N/A N/A
CH4CDSup_A_ct CH4CDSup_A_ct N/A float32 -9999 N/A N/A
CH4CDSup_A_sdev CH4CDSup_A_sdev N/A float32 -9999 N/A N/A
CH4CDSup_D CH4CDSup_D N/A float32 -9999 N/A N/A
CH4CDSup_D_ct CH4CDSup_D_ct N/A float32 -9999 N/A N/A
CH4CDSup_D_sdev CH4CDSup_D_sdev N/A float32 -9999 N/A N/A
CH4_dof_A CH4_dof_A N/A float32 -9999 N/A N/A
CH4_dof_A_ct CH4_dof_A_ct N/A float32 -9999 N/A N/A
CH4_dof_A_sdev CH4_dof_A_sdev N/A float32 -9999 N/A N/A
CH4_dof_D CH4_dof_D N/A float32 -9999 N/A N/A
CH4_dof_D_ct CH4_dof_D_ct N/A float32 -9999 N/A N/A
CH4_dof_D_sdev CH4_dof_D_sdev N/A float32 -9999 N/A N/A
CloudPhase CloudPhase level int32 N/A N/A N/A
cloud_phase_3x3_A cloud_phase_3x3_A N/A int16 0 N/A N/A
cloud_phase_3x3_D cloud_phase_3x3_D N/A int16 0 N/A N/A
COCDSup_A COCDSup_A N/A float32 -9999 N/A N/A
COCDSup_A_ct COCDSup_A_ct N/A float32 -9999 N/A N/A
COCDSup_A_sdev COCDSup_A_sdev N/A float32 -9999 N/A N/A
COCDSup_D COCDSup_D N/A float32 -9999 N/A N/A
COCDSup_D_ct COCDSup_D_ct N/A float32 -9999 N/A N/A
COCDSup_D_sdev COCDSup_D_sdev N/A float32 -9999 N/A N/A
CO_dof_A CO_dof_A N/A float32 -9999 N/A N/A
CO_dof_A_ct CO_dof_A_ct N/A float32 -9999 N/A N/A
CO_dof_A_sdev CO_dof_A_sdev N/A float32 -9999 N/A N/A
CO_dof_D CO_dof_D N/A float32 -9999 N/A N/A
CO_dof_D_ct CO_dof_D_ct N/A float32 -9999 N/A N/A
CO_dof_D_sdev CO_dof_D_sdev N/A float32 -9999 N/A N/A
DustTest DustTest level int32 N/A N/A N/A
Dust_Score_A Dust_Score_A N/A float32 -9999 N/A N/A
Dust_Score_A_ct Dust_Score_A_ct N/A float32 -9999 N/A N/A
Dust_Score_A_sdev Dust_Score_A_sdev N/A float32 -9999 N/A N/A
Dust_Score_D Dust_Score_D N/A float32 -9999 N/A N/A
Dust_Score_D_ct Dust_Score_D_ct N/A float32 -9999 N/A N/A
Dust_Score_D_sdev Dust_Score_D_sdev N/A float32 -9999 N/A N/A
H2OCDSup_A H2OCDSup_A N/A float32 -9999 N/A N/A
H2OCDSup_A_ct H2OCDSup_A_ct N/A float32 -9999 N/A N/A
H2OCDSup_A_sdev H2OCDSup_A_sdev N/A float32 -9999 N/A N/A
H2OCDSup_D H2OCDSup_D N/A float32 -9999 N/A N/A
H2OCDSup_D_ct H2OCDSup_D_ct N/A float32 -9999 N/A N/A
H2OCDSup_D_sdev H2OCDSup_D_sdev N/A float32 -9999 N/A N/A
H2O_dof_A H2O_dof_A N/A float32 -9999 N/A N/A
H2O_dof_A_ct H2O_dof_A_ct N/A float32 -9999 N/A N/A
H2O_dof_A_sdev H2O_dof_A_sdev N/A float32 -9999 N/A N/A
H2O_dof_D H2O_dof_D N/A float32 -9999 N/A N/A
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