The Atmospheric Infrared Sounder (AIRS) Level 2 Near Real Time (NRT) Standard Physical Retrieval (AIRS-only) product (AIRS2RET_NRT_7.0) differs from the routine product (AIRS2RET_7.0) in four ways to meet the three hour latency requirements of the Land Atmosphere NRT Capability Earth Observing System (LANCE): (1) The NRT granules are produced without previous or subsequent granules if those granules are not available within 5 minutes, (2) the predictive ephemeris/attitude data are used rather than the definitive ephemeris/attitude, (3) if the forecast surface pressure is unavailable, a surface climatology is used, and (4) no ice cloud properties retrievals are performed. The consequences of these differences are described in the AIRS Near Real Time (NRT) data products document. 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 produced using AIRS IR only because the radiometric noise in several AMSU channels started to increase significantly (since June 2007). The AIRS Standard Retrieval Product consists of retrieved estimates of cloud and surface properties, plus profiles of retrieved temperature, water vapor, ozone, carbon monoxide and methane. Estimates of the errors associated with these quantities is also part of the Standard Product. The temperature profile vertical resolution is 28 levels total between 1100 mb and 0.1 mb, while moisture profile is reported at 14 atmospheric layers between 1100 mb and 50 mb. The horizontal resolution is 50 km. An AIRS granule has been set as 6 minutes of data, 30 footprints cross track by 45 lines along track. There are 240 granules per day, with an orbit repeat cycle of approximately 16 day.
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Spatial Extent: | Bounding Rectangle: N: 90 S: -90 E: 180 W: -180 |
Data Format(s): | Distribution: HDF-EOS |
Temporal Extent: | Platform(s): | Aqua | |
Data Center(s): | NASA/GSFC/SED/ESD/GCDC/GESDISC | Instrument(s): | AIRS |
Version: | 7.0 |
10.5067/RAEHAOH4VZM5
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The Earth Observing System Data and Information System (EOSDIS) data use policy for NASA data can be accessed at https://earthdata.nasa.gov/earth-observation-data/data-use-policy. For information on how to properly cite and acknowledge data from the NASA GES DISC, refer to https://disc.gsfc.nasa.gov/information/documents?title=data-policy.
You must register using the EOSDIS User Registration System in order to access LANCE NRT AIRS data. You can register at https://urs.eosdis.nasa.gov/users/new
Association Type | Entry ID | Description | Version |
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Science Associated | AIRS2RET_NRT | 7.0 |
Title: The Atmospheric Infrared Sounder version 6 cloud products
Publication Date: 2014-01-01
Author(s): B. H. Kahn et al.
Pages: 399-426
DOI: 10.5194/acp-14-399-2014
Online Resource: https://www.atmos-chem-phys.net/14/399/2014/acp-14-399-2014.html
Title: Improved methodology for surface and atmospheric soundings, error estimates, and quality control procedures: the atmospheric infrared sounder science team version-6 retrieval algorithm
Publication Date: 2014-03-31
Author(s): Joel Susskind, John, M. Blaisdell, and Lena Iredell
Edition: 8
Volume: 1
Pages: 34
DOI: 10.1117/1.JRS.8.084994
Title: Validation of AIRS version 6 temperature profles and surface-based inversions over Antarctica using Concordiasi dropsonde data
Publication Date: 2015-02-10
Author(s): Patrick Boylan, Junhong Wang, Stephen A. Cohn, Erik Fetzer, Eric S. Maddy, and Sung Wong
Series: Journal of Geophysical Research: Atmospheres
Volume: 120
Issue: 3
Pages: 992-1007
DOI: 10.1002/2014JD022551
Title: Verificaton of air/surface humidity differences from AIRS and ERA-Interim in support of turbulent flux estimation in the Arctic
Publication Date: 2015-01-15
Author(s): L.N. Boisvert, D.L. Wu, T. Vihma, J.Susskind
Series: Journal of Geophysical Research, Atmospheres
Volume: 120
Issue: 3
Pages: 945-963
DOI: 10.1002/2014JD02166
Title: A global assessment of NASA AIRS v6 and EUMETSAT IASI v6 precipitable water vapor using ground based GPS SuomiNet stations
Publication Date: 2016-07-21
Author(s): Jacola Roman, Robert Knuteson, Thomas August, Tim Hultberg, Steve Ackerman, and Hank Revercomb
Series: Journal of Geophysical Research, Atmospheres
Volume: 121
Issue: 15
Pages: 8925-8948
DOI: 10.1002/2016JD024806
Title: Neural network temperature and moisture retrieval algorithm validation for AIRS/AMSU and CrIS/ATMS
Publication Date: 2015-12-20
Author(s): Adam B. Milstein, William J. Blackwell
Series: Journal of Geophysical Research, Atmospheres
Volume: 121
Issue: 4
Pages: 1414-1430
DOI: 10.1002/2015JD024008
Title: Validation of Atmospheric Infrared Sounder Observations
Publication Date: 2006-05-01
Author(s): Journal Editors
Series: J. Geophys, Res. Atmospheres
Volume: 111
Issue: 9
DOI: 10.1029/2005/JD007020
Title: Retrieval of Atmospheric and Surface Parameters From AIRS/AMSU/HSB Data in the Presence of Clouds
Publication Date: 2003-04-29
Author(s): Joel Susskind, Christopher D. Barnet, and John M. Blaisdell
Series: EEE Transactions on Geoscience and Remote Sensing,
Volume: 41
Issue: 2
Pages: 390-409
DOI: 10.1109/TGRS.2002.808236
Title: AIRS Near Real Time (NRT) data products
Author(s): Thomas Hearty, Feng Ding, Ed Esfandiari, Andrey Savtchenko, Michael Theobald, Bruce Vollmer, Xin-Min Hua, Evan Manning, and Edward Olsen
Project Short Name | Campaigns | Project Dates |
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Aqua | No campaigns listed. | No dates provided. |
LANCE | No campaigns listed. | No dates provided. |
Coverage Type | Zone Identifier | Geometry | Granule Representation |
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HORIZONTAL | CARTESIAN | CARTESIAN |
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
GES DISC NASA Goddard Code 610.2
Greenbelt,
MD
20771
301-286-9773
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt,
MD
20771
Format: HDF-EOS
Format Type: Native
Media: Online Archive
Fees: None