AIRS2CCF_NRT
7.0
Aqua/AIRS L2 Near Real Time (NRT) Cloud-Cleared Infrared Radiances (AIRS-only) V7.0 at GES DISC
AIRS project
Aqua/AIRS L2 Near Real Time (NRT) Cloud-Cleared Infrared Radiances (AIRS-only) V7.0
AIRS2CCF_NRT
2019-12-15T00:00:00.000Z
Greenbelt, MD, USA
Goddard Earth Sciences Data and Information Services Center (GES DISC)
7.0
Digital Science Data
DOI
10.5067/964DYFSEQVUB
https://disc.gsfc.nasa.gov/datacollection/AIRS2CCF_NRT_7.0.html
METADATA AUTHOR
LENA
IREDELL
GES DISC NASA Goddard Code 610.2
Greenbelt
MD
20771
USA
301-286-9773
Telephone
lena.iredell@nasa.gov
EARTH SCIENCE
SPECTRAL/ENGINEERING
INFRARED WAVELENGTHS
INFRARED RADIANCE
CLOUD-CLEARED INFRARED RADIANCE
IMAGERY/BASE MAPS/EARTH COVER
CALIBRATED
EOSDIS
GEOLOCATED
INFRARED
RADIANCE
LANCE
NRT
RELATIVE_START_DATE: -7
Earth Observation Satellites
Aqua
Earth Observing System, Aqua
AIRS
Atmospheric Infrared Sounder
true
2002-08-30T00:00:00.000Z
IN WORK
CARTESIAN
CARTESIAN
-90
90
-180
180
Not provided
GEOGRAPHIC REGION
GLOBAL
Aqua
Earth Observing System (EOS), Aqua
LANCE
Land, Atmosphere Near real-time Capability for EOS
This product is similar to AIRS2CCF.7.0 but differs in four ways to meet the three hour latency requirement of the Land Atmosphere NRT Capability Earth Observing System (LANCE).For additional information about NRT processing see either the Related URL section or the Publication References section for the V7 NRT memo.
This product contains a flag for each radiance frequency indicating the quality. The three options for this quality flag are: 0 for best quality, 1 for good quality, 2 for do not use. A limitation of this product is in scenes with low contrast between the nine AIRS footprints the cloud clearing determination is poorer. Also in scenes with clouds above an inversion the warmest footprint is not necessarily the clearest.
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
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.
ARCHIVER
NASA/GSFC/SED/ESD/GCDC/GESDISC
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
https://disc.gsfc.nasa.gov/
DATA CENTER CONTACT
GES DISC HELP DESK SUPPORT GROUP
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt
MD
20771
USA
301-614-5224
Telephone
301-614-5268
Fax
gsfc-dl-help-disc@mail.nasa.gov
Online Archive
HDF-EOS
None
us-west-2
s3://gesdisc-cumulus-prod-protected/Aqua_AIRS_NRT/AIRS2CCF_NRT.7.0/
https://data.gesdisc.earthdata.nasa.gov/s3credentials
https://data.gesdisc.earthdata.nasa.gov/s3credentialsREADME
Joel Susskind, Christopher D. Barnet, and John M. Blaisdell
2003-04-29T00:00:00.000Z
Retrieval of Atmospheric and Surface Parameters From AIRS/AMSU/HSB Data in the Presence of Clouds
IEEE Transactions on Geoscience and Remote Sensing
41
2
390-409
DOI
10.1109/TGRS.2002.808236
Joel Susskind, John, M. Blaisdell, and Lena Iredell
2014-03-31T00:00:00.000Z
Improved methodology for surface and atmospheric soundings, error estimates, and quality control procedures: the atmospheric infrared sounder science team version-6 retrieval algorithm
J. Appl. Rem. Sens.
8
1
34
DOI
10.1117/1.JRS.8.084994
Thomas Hearty, Feng Ding, Ed Esfandiari, Andrey Savtchenko, Michael Theobald, Bruce Vollmer, Xin-Min Hua, Evan Manning, and Edward Olsen
AIRS Near Real Time (NRT) data products
https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.3.5_ProductQuality/nrt_memo_v6.pdf
The Atmospheric Infrared Sounder (AIRS) Level 2 Near Real Time (NRT) Cloud-Cleared Infrared Radiances (AIRS-only) product (AIRS2CCF_NRT_7.0) differs from the routine product (AIRS2CCF_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 AMSU channel 4 started to increase significantly (since June 2007). Cloud-Cleared Radiances contain calibrated, geolocated channel-by-channel AIRS infrared radiances (milliWatts/m2/cm-1/steradian) that would have been observed within each AMSU footprint if there were no clouds in the FOV and produced along with the AIRS Standard Product, as they are the radiances used to retrieve the Standard Product. Nevertheless, they are an order of magnitude larger in data volume than the remainder of the Standard Products and, many Standard Product users are expected to have little interest in the Cloud Cleared Radiance. For these reasons they are a separate output file.
The AIRS2CCF_NRT_7.0 products are stored in files (often referred to as "granules") that contain 6 minutes of data, 30 footprints across track by 45 lines along track.
The Near Real Time (NRT) product is for users whose primary interest is the low latency for data availability. While standard data products are available within 3 days of observation, NRT data are usually available within 3 hours of observation.
GET RELATED VISUALIZATION
https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRS2CCF_7.0.png
Sample data of the "AIRS/Aqua Level 2 Cloud-Cleared Infrared (IR) Radiances Product".
DATA SET LANDING PAGE
https://disc.gsfc.nasa.gov/datacollection/AIRS2CCF_NRT_7.0.html
Access the dataset landing page from the GES DISC website.
GET DATA
DATA TREE
https://discnrt1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_NRT/AIRS2CCF_NRT.7.0/
Access the data via HTTPS. User registration is required. Register for a username and password at https://urs.eosdis.nasa.gov/users/new
USE SERVICE API
OPENDAP DATA
https://discnrt1.gesdisc.eosdis.nasa.gov/opendap/Aqua_AIRS_NRT/AIRS2CCF_NRT.7.0/
Access the data via the OPeNDAP protocol.
GET DATA
DATACAST URL
https://discnrt1.gesdisc.eosdis.nasa.gov/datacasting/AIRS2CCF_NRT.7.0.datacast-feed.xml
Access the data via datacasting.
GET DATA
Earthdata Search
https://search.earthdata.nasa.gov/search?q=AIRS2CCF_NRT+7.0
Use the Earthdata Search to find and retrieve data sets across multiple data centers.
PROJECT HOME PAGE
https://airs.jpl.nasa.gov/index.html
AIRS home page at NASA/JPL. General information on the AIRS instrument,algorithms, and other AIRS-related activities can be found.
VIEW RELATED INFORMATION
https://disc.gsfc.nasa.gov/information/documents?title=AIRS%20Documentation
AIRS Documentation Page
VIEW RELATED INFORMATION
https://disc.gsfc.nasa.gov/nrt/data-holdings/airs-nrt-products
AIRS Near Real Time (NRT) information
VIEW RELATED INFORMATION
READ-ME
https://docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/Overview_of_the_AIRS_Mission.pdf
Overview of the AIRS Mission: Instruments, Processing Algorithms, Products, and Documentation
VIEW RELATED INFORMATION
USER'S GUIDE
https://docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/V7_L2_Product_User_Guide.pdf
AIRS/AMSU/HSB Version 7 Level 2 Product User Guide
AIRS2CCF_NRT
7.0
Science Associated
CEOS IDN DIF
VERSION 10.2
2019-11-27
2020-03-26
1970-01-01T00:00:00.000Z
1970-01-01T00:00:00.000Z
2
NEAR_REAL_TIME
gov.nasa.gsfc.gcmd.standardproduct
StandardProduct
false