Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

AIRS/Aqua L3 8-day CO2 in the free troposphere (AIRS-only) 2.5 degrees x 2 degrees V005 (AIRS3C28) at GES DISC

Metadata Updated: December 7, 2023

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) and the Humidity Sounder for Brazil (HSB), AIRS constitutes an innovative atmospheric sounding group of visible, infrared, and microwave sensors. This product is the AIRS mid-tropospheric Carbon Dioxide (CO2) Level 3 8-day Gridded Retrieval, from the AIRS instrument on board of Aqua satellite. It is 8-day gridded data, at 2.5x2 deg (lon)x(lat) grid cell size. The data is in mole fraction units (data x 10^6 =ppm in volume). This is a total tropospheric column property. The file format is HDF-EOS 2.12 corresponding to HDF4. This AIRS mid-tropospheric CO2 Level 3, 8-day, Gridded Retrieval Product contains standard retrieval means, standard deviations and input counts as well as the latitude and longitude arrays giving the centers of the grid boxes. Each file covers an 8-day period. The mean values are simply the arithmetic means of the individual CO2 retrievals which fall within that grid box over the 8-day period. The mid-tropospheric CO2 retrievals have been averaged and binned into 2.5 x 2 deg grid cells, from -180.0 to +180.0 deg longitude and from -60.0 to +90.0 deg latitude. For each grid map of 4-byte floating-point mean values there is a corresponding 4-byte floating-point map of standard deviation and a 2-byte integer grid map of counts. The counts map provides the user with the number of points per bin that were included in the mean.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date November 12, 2020
Metadata Updated Date December 7, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

AIRS 8-day CO2, Aug 5, 2004

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 7, 2023
Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
Maintainer
Identifier C1238517256-GES_DISC
Data First Published 2009-12-25
Language en-US
Data Last Modified 2017-02-21
Category Aqua, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation AIRS Science Team/Joao Teixeira. 2009-10-15. AIRS3C28. Version 005. AIRS/Aqua L3 8-day CO2 in the free troposphere (AIRS-only) 2.5 degrees x 2 degrees V005. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/Aqua/AIRS/DATA334. https://disc.gsfc.nasa.gov/datacollection/AIRS3C28_005.html. Digital Science Data.
Creator AIRS Science Team/Joao Teixeira
Data Presentation Form Digital Science Data
Graphic Preview Description AIRS 8-day CO2, Aug 5, 2004
Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRS3C28_005.png
Harvest Object Id d7a338fb-2a5b-48d2-b4de-bb1b666f88a2
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/Aqua/AIRS/DATA334
Metadata Type geospatial
Old Spatial -180.0 -60.0 180.0 90.0
Program Code 026:001
Release Place Greenbelt, MD, USA
Series Name AIRS3C28
Source Datajson Identifier True
Source Hash d1aeae9e1b2a51a67875d6e85aab2254d3d8486600ba4012840d963db60082a2
Source Schema Version 1.1
Spatial
Temporal 2009-12-25T00:00:00Z/2017-02-21T23:59:59.999Z

Didn't find what you're looking for? Suggest a dataset here.