AIRS/Aqua Level 2 Support retrieval (AIRS+AMSU) V005 (AIRX2SUP) at GES DISC
Entry ID:
GES_DISC_AIRX2SUP_V005
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Summary
Abstract:
The Atmospheric Infrared Sounder (AIRS) is a facility instrument 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. AIRS data will be generated ... continuously. Global coverage will be obtained twice daily (day and night) on a 1:30pm sun synchronous orbit from a 705-km altitude.
The Support Product includes higher vertical resolution profiles of the quantities found in the Standard Product plus intermediate output (e.g., microwave-only retrieval), research products such as the abundance of trace gases, and detailed quality assessment information. The Support Product profiles contain 100 pressure levels between 1100 and .016 mb; this higher resolution will simplify the generation of radiances using forward models, though the vertical information content is no greater than in the Standard Product profiles. The horizontal resolution is 50 km. The intended users of the Support Product are researchers interested in generating forward radiance, or in examining research products, and the AIRS algorithm development team. The Support Product will be generated at all locations as Standard Products. An AIRS granule has been set as 6 minutes of data. This will normally correspond to approximately 1/15 of an orbit but exactly 45 scanlines of AMSU-A data or 135 scanlines of AIRS and HSB data.
(The Shortname for this product is AIRX2SUP). 
Related URL
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Description:
Access the AIRS Level 2 Support Product by FTP.
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Multimedia Sample
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: 90.0
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S: -90.0
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E: 180.0
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W: -180.0
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Min Altitude:
1100 MB
Max Altitude:
0.1 MB
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Data Set Citation
Dataset Originator/Creator:
AIRS Science Team/Moustafa Chahine
Dataset Title:
AIRS/Aqua Level 2 Support retrieval (AIRS+AMSU)
Dataset Release Date:
2007-07-26
Dataset Release Place:
Greenbelt, MD, USA
Dataset Publisher:
Goddard Earth Science Data and Information Services Center (GES DISC)
Version:
005
Data Presentation Form:
Digital Science Data
Online Resource:
http://disc.sci.gsfc.nasa.gov/AIRS/data-holdings/by-data-product/ai...
Temporal Coverage
Start Date:
2002-08-30
Stop Date:
2013-02-28
Data Resolution
Latitude Resolution:
1KM
Longitude Resolution:
1KM
Temporal Resolution:
MONTHLY
Quality
The data were pre-processed to give five-band radiometrically
corrected, geometrically matched, ERDAS 7.5 raster images with pixel
size of 0.01 degree resolution. Major corruptions in the data set,
dropped lines - speckle, were removed where possible.
The active fires were extracted from the remapped images using a
contextual ... algorithm, to produce raster maps of fire location at 0.01
degree resolution Plate Carre [lat/ long grid] projection for each
original pass. The "first pass" thresholds for day-time imagery [after
6 a.m. local time and before 6 p.m. local time] were set at 311 K for
channel 3, and 8 K the channel [3-4] difference. For night-time
imagery corresponding thresholds of 298 K and 5 K were used.
Temporal sampling, spatial and spectral resolutions of the AVHRR
sensor all limit the results obtained and at present it is difficult
to assess the actual limitations of this product. The location
accuracy of individual fires is +/- 3km. Care is required when using
the product for quantitative assessment.
Access Constraints
End-users external to GVM can have access to the data and make use of
it in their own field of research and/or application only if they
fullfill the use- constraints listed below.
Use Constraints
When the data set is derived from results already published in
conferences or journals, the external user must agree with MTV on the
correct form of refer- ence. If it is derived from results not yet
published, the external user and GVM should agree on a co-author work.
Data Set Progress
IN WORK
Personnel
Role:
DIF AUTHOR
Phone:
+39 332 78 98 22
Fax:
+39 332 78 90 73
Email:
olivier.draily at jrc.it
Contact Address:
Global Vegetation Monitoring Unit
T.P. 440
Joint Research Centre (European Commission)
City:
Ispra (VA)
Postal Code:
I-21020
Country:
Italy
Role:
TECHNICAL CONTACT
Phone:
+39-0332-789215
Fax:
+39-0332-789073
Email:
jean-marie.gregoire at jrc.it
Contact Address:
GVM Unit - Global Vegetation Monitoring
Head of Fire Group
European Commission
Joint Research Centre
(VA)
City:
Ispra
Postal Code:
I-21020
Country:
Italy
Role:
INVESTIGATOR
Phone:
+39 332 789410
Fax:
+39 332 789073
Email:
jean-paul.malingreau at jrc.it
Contact Address:
Global Vegetation Monitoring Unit
T.P. 440
Joint Research Centre (European Commission)
City:
Ispra (VA)
Postal Code:
I-21020
Country:
Italy
Publications/References
Eva H., and Flasse S., [1996]. A comparison of contextual and threshold active fire detection algorithms. IGBP-DIS Workshop on Global Fire Monitoring, JRC, Ispra, October 17-19, 1995, IGBP-Global Change Report, Stockholm, 1996, in press. Ehrlich D., Gregoire J-M., Eva H., Janodet E., and Koffi B., 1995, Fire detection, land cover characterization and burnt area ... estimation
in the savannah-forest transition zone of Central Africa. Publication
of the European Communities, EUR 16314 EN, Brussels.Luxembourg, 1995,
pp. 72
Belward A.S., Gregoire J-M., D'Souza G., Trigg S., Hawkes M., Brustet
J-M., Sera D., Tireford J-L., Charlot J-M. and Vuattoux R.,
[1993]. In-Situ, real time fire detection using NOAA/AVHRR
data. Proceedings of the VI AVHRR Data User's Meeting, Belgirate,
Italy, 29th June - 2nd July 1993, published by EUMETSAT, Darmstadt,
Germany, EUM P 12, ISSN 1015 9576, 333-339.
Boulvert Y., [1986]. Republique Centrafricaine, carte
phytogeographique 1/1000.000. Notice no. 104. ORSTOM Paris,
p. 131, 1986.
Delmas R., Lacaux J-P., Cros B., Zimmerman P., Brasseur G., Gregoire
J-M., and Andreae M.O., [1996]. Overview of the EXPRESSO Project. in
"Biomass Burning and Global Change", J.S. Levine editor, MIT Press -
Cambridge, 1996, in press.
Justice C., and Dowty P., [editors] [1994]. IGBP DIS satellite fire
detection algorithm workshop technical report. IGBP-DIS Working Paper
no. 9, Universite Paris VI, France, April 1994, p. 87.
Moula M., [1996]. Modelisation des feux de biomasse en savane
africaine et evaluation des emissions dans l' atmosphere de
constituants en trace. These de Doctorat, No. 2262, Universite
Paul Sabatier, Toulouse, 23 janvier 1996, p. 232.
World Wildlife Fund, [1993]. Central Africa: Global climate change and
devel- opment. Technical Report from Biodiversity Support Program,
printed by Corporate Press, Maryland, USA, 1993.
Creation and Review Dates
Last DIF Revision Date:
2009-04-20
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