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AIRS/Aqua Level 3 Daily standard physical retrieval (AIRS+AMSU+HSB) V005 (AIRH3STD) at GES DISC

Entry ID: GES_DISC_AIRH3STD_V005

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Summary

Abstract: This product is similar to AIRX3STD. However, it contains science retrievals that use the Humidity Sounder for Brazil (HSB). Because the HSB instrument lived only from September 2002 through January 2003 when it terminally failed, the data set covers these five months only.

The AIRS Level 3 Daily Gridded Product contains standard retrieval means, ... standard deviations and input counts. Each file covers a temporal period of 24 hours for either the descending (equatorial crossing North to South @1:30 AM local time) or ascending (equatorial crossing South to North @1:30 PM local time) orbit. The data starts at the international dateline and progresses westward (as do the subsequent orbits of the satellite) so that neighboring gridded cells of data are no more than a swath of time apart (about 90 minutes). The two parts of a scan line crossing the dateline are included in separate L3 files, according to the date, so that data points in a grid box are always coincident in time. The edge of the AIRS Level 3 gridded cells is at the date line (the 180E/W longitude boundary). When plotted, this produces a map with 0 degrees longitude in the center of the image unless the bins are reordered. This method is preferred because the left (West) side of the image and the right (East) side of the image contain data farthest apart in time. The gridding scheme used by AIRS is the same as used by TOVS Pathfinder to create Level 3 products. The daily Level 3 products have gores between satellite paths where there is no coverage for that day.

The geophysical parameters have been averaged and binned into 1 x 1 grid cells, from -180.0 to +180.0 deg longitude and from -90.0 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 and can be used to generate custom multi-day maps from the daily gridded products.

The geophysical parameters are: Skin Temperature, Surface Air Temperature, Air Temperature, Tropopause, Precipitable Water, Water Vapor, Cloud Amount/Frequency, Cloud Height, Cloud Top Pressure, Cloud Top Temperature, Reflectance, Emissivity, Sea Surface Temperature, Ozone, Surface Pressure, Cloud Vertical Distribution.

(The Shortname for this product is AIRH3STD).

Related URL

Link: GET DATA > ON-LINE ARCHIVE

Description: Access the AIRS/Aqua Level 3 daily standard physical retrieval product (With HSB) by FTP.

Multimedia Sample

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Caption: Sample data of AIRH3STD

Description: Sample data of the "AIRS/Aqua Level 3 daily standard physical retrieval
product".

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 90.0

S: -90.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: AIRS Science Team/Moustafa Chahine

Dataset Title: AIRS/Aqua Level 3 Daily standard physical retrieval (AIRS+AMSU+HSB)

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: 2002-08-31

Stop Date: 2003-02-06

Location Keywords

OCEAN > ATLANTIC OCEAN

OCEAN > INDIAN OCEAN

Data Resolution

Latitude Resolution: 1 deg
Longitude Resolution: 1 deg
Horizontal Resolution Range: 100 km - < 250 km or approximately 1 degree - < 2.5 degrees
Temporal Resolution: Once per day
Temporal Resolution Range: Daily - < Weekly

Science Keywords

ATMOSPHERE > ALTITUDE > TROPOPAUSE

ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

IMAGERY/BASE MAPS/EARTH COVER

Platform

AQUA > Earth Observing System, AQUA

Instrument

AIRS > Atmospheric Infrared Sounder

Project

DODS > Distributed Oceanographic Data System

EOSDIS > Earth Observing System Data Information System

Quality The V5 Level 3 gridded products are derived from the Level 2 standard swath products. The Level 2 quality indicators determine which of the Level 2 Standard Product data are combined to create the Level 3 Product. It is important that the user of Level 3 Products become familiar with these quality indicators, and we urge the user to read the documentation describing the AIRS Level 2 Standard ...

Access Constraints None

Ancillary Keywords

RADIANCE

INFRARED

Data Set Progress

COMPLETE

Originating Center

GES DAAC

Data Center

Australian Antarctic Data Centre, Australia

Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC Phone: +61 3 6232 3244 Fax: +61 3 6232 3351 Email: metadata at aad.gov.au Contact Address: Australian Antarctic Division 203 Channel Highway City: Kingston Province or State: Tasmania Postal Code: 7050 Country: Australia

Distribution

Distribution Media: HTTP

Distribution Size: 19 kb

Distribution Format: pdf

Fees: free

Personnel

JOHN GIBSON

Role: INVESTIGATOR

Role: TECHNICAL CONTACT

Role: DIF AUTHOR

Phone: +61 3 6226 7488

Fax: +61 3 6226 2973

Email: John.gibson at utas.edu.au

Contact Address:

IASOS

Private Bag 77

University of Tasmania

City: Hobart

Province or State: Tasmania

Postal Code: 7001

Country: Australia

Creation and Review Dates

DIF Creation Date: 2005-03-02

Last DIF Revision Date: 2008-04-10

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