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warn_icon.gif IMPORTANT MESSAGE Apr 22, 2014    Simultaneous Nadir Observation (SNO) data products from the Sounder PEATE are available at GES DISC   

Simultaneous Nadir Observation (SNO) data products from the Sounder PEATE are available at GES DISC. These are monthly accumulations of paired near-nadir infrared observations from AIRS on Aqua, IASI on MetOp-A and MetOp-B, and CrIS on SNPP, as well as paired microwave observations from AMSU on Aqua, MHS on MetOp-A, MetOp-B, NOAA-N and NOAA-N', and ATMS on SNPP.

These products are available via ftp, and they are searchable in Mirador.

ftp://airsl2.gesdisc.eosdis.nasa.gov/ftp/data/s4pa/Sounder_PEATE
Infrared SNO product directories: SPSNI[01-05]M
Microwave SNO product directories: SPSNM[01-14]M

http://mirador.gsfc.nasa.gov/cgi-bin/mirador/collectionlist.pl?search=1&page=1&keyword=PEATE&startTime=&endTime=&location=&submit=Search+GES-DISC&event=

Additional information about these products may be obtained from the README:

ftp://airsl2.gesdisc.eosdis.nasa.gov/ftp/data/s4pa/Sounder_PEATE/SPSNI01M.10/doc/ReadmeGES_sPEATE_SNO_2014-02-27.pdf

The AIRS/AMSU/HSB suite of instruments is flying on board of Aqua satellite, and thus their "overpass" pattern is this of Aqua.

The  AIRS/AMSU/HSB suite constitutes an innovative atmospheric sounding system of infrared, microwave and visible sensors. The infrared radiance data product is stable to 10 mK/yr and accurate to better than 200 mK. This product is the most accurate and stable set of hyperspectral infrared radiance spectra measurements made in space to date, and it meets the criteria identified by the National Research Council for climate data records. The geophysical products provide daily global temperature profiles at an accuracy of 1 K per 1 km thick layer in the troposphere and moisture profiles at an accuracy of 20% per 2 km thick layer in the lower troposphere (20% - 60% in the upper troposphere). With the Version 5 release the Level-2 and Level-3 products also include the burden and profiles of the minor gases: O3 (Level-2 only), CO and CH4.

The accuracy of the temperature and humidity profiles derived from AIRS/AMSU/HSB is recognized as improving forecasts from meteorological prediction models. NOAA administrator Lautenbacher has reported that "the AIRS instrument has provided the most significant increase in forecast improvement in this time range of any other single instrument." Currently researchers are using AIRS data products to validate climate models and to test their representations of critical climate feedbacks.

The AIRS Data Support at the GES DISC DAAC provides science and data support to assist others in understanding, ordering, and using the AIRS/AMSU/HSB data products.

Register as an AIRS Data User

By registering as an AIRS Data User, you will receive announcements of discovered data product features and caveats which are directly applicable to your area of research. You will also receive the AIRS newsletters.

Got a Question, AskAIRS

Got a question for which there is no ready answer in the AIRS documentation? Post it at AskAIRS site and the AIRS Project will endeavor to provide the answer.

 

Hurricane Isidore, September 22, 2002


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Last updated: Nov 10, 2011 01:08 PM ET