AIRS/Aqua Level 3 Pentad quantization in physical units (AIRS-only) V005 (AIRS3QP5) at GES DISC
Entry ID: GES_DISC_AIRS3QP5_V005
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AIRS/Aqua Level 3 pentad quantization product in physical units (AIRS Only).|
The quantization products (QP) are distributional summaries derived from the Level-2 standard retrieval products (of swath type) to provide a more comprehensive set of statistical summaries than the traditional means and standard deviation. The QP products combine the Level 2 standard data parameters over grid cells of 5 x 5 deg spatial extent for temporal periods of five days. Pentads always start on the 1st, 6th, 11th, 16th, 21st, and 26th days of the month and may contain as few as 3 days of data or as much as 6 days. They preserve the multivariate distributional features of the original data and so provide a compressed data set that more accurately describes the disparate atmospheric states that is in the original Level-2 swath data set.
The geophysical parameters are: Air Temperature and Water Vapor profiles (11 levels/layers), Cloud fraction (vertical distribution).
(The Shortname for this product is AIRS3QP5)
Description: Access the AIRS/Aqua Level 3 pentad quantization product (Airs Only) data by FTP.
Link: GET DATA > MIRADOR
Description: Access the AIRS/Aqua Level 3 pentad quantization product (Airs Only) data using Mirador.
Link: GET DATA > ECHO
Description: Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.
Link: VIEW PROJECT HOME PAGE
Description: AIRS home page at NASA/JPL. General information on the AIRS instrument,algorithms, and other AIRS-related activities can be found.
Link: VIEW PROJECT HOME PAGE
Description: AIRS data support home page at Goddard Earth Sciences Data Information and Service Center/Distributed Active Archive Center (GES DISC DAAC). Online documentation, software to read, visualize and analyze AIRS data and data access information are available from this web site.
Link: VIEW RELATED INFORMATION > USER'S GUIDE
Description: README Document for AIRS3QP5
|N: 90.0||S: -90.0||E: 180.0||W: -180.0||
Data Set Citation
AIRS Science Team/Moustafa Chahine
Dataset Title: AIRS/Aqua Level 3 Pentad quantization in physical units (AIRS-only)
Dataset Release Date: 2007-07-26
Dataset Release Place: Greenbelt, MD, USA
Dataset Publisher: Goddard Earth Science Data and Information Services Center (GES DISC)
Data Presentation Form: Digital Science Data
Online Resource: http://mirador.gsfc.nasa.gov/collections/AIRS3QP5__005.shtml
|Start Date: 2007-06-01|
> ATLANTIC OCEAN
OCEAN > INDIAN OCEAN
OCEAN > PACIFIC OCEAN
GEOGRAPHIC REGION > GLOBAL
GEOGRAPHIC REGION > GLOBAL LAND
GEOGRAPHIC REGION > GLOBAL OCEAN
Longitude Resolution: 5 degrees
Temporal Resolution: 5 days
|ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE >AIR TEMPERATURE PROFILE [Definition]|
|ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR >SPECIFIC HUMIDITY PROFILE [Definition]|
|ATMOSPHERE >CLOUDS >CLOUD PROPERTIES >CLOUD VERTICAL DISTRIBUTION >CLOUD FRACTION VERTICAL DISTRIBUTION [Definition]|
ISO Topic Category
IMAGERY/BASE MAPS/EARTH COVER
|AQUA >Earth Observing System, AQUA [Information]|
|AIRS >Atmospheric Infrared Sounder [Information]|
|DODS >Distributed Oceanographic Data System [Information]|
|EOSDIS >Earth Observing System Data Information System [Information]|
|ESIP >Earth Science Information Partners Program [Information]|
|AQUA >Earth Observing System (EOS), AQUA [Information]|
|OPENDAP >Open-source Project for a Network Data Access Protocol [Information]|
|CWIC >CEOS WGISS Integrated Catalog [Information]|
The L3Q products combine the Level 2 standard data parameters over grid cells of 5 x 5 deg spatial extent for temporal periods of five days and one month. The report for each grid cell provides a number of representative values and their associated weights. The sample of lower level data points with the same representative is called a “cluster”, and its representative is the “cluster mean”. Cluster membership is determined by assigning lower level data points to clusters so that that the errors between original values and their representatives are minimized. This constraint prevents the creation of single-data-point clusters.|
As a general rule, Level 2 retrieved quantities whose quality indicators are “best” (=0) or “good” (=1) are included in the data that generate the L3Q product. Users MUST read information contained within the two documents below to avoid misuse of the L3Q products in their research.
|Not publicly available at the moment.|
Data Set Progress
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
Data Center URL: http://disc.gsfc.nasa.gov/
Distribution_Size: 43 MB
Role: DIF AUTHOR
Email: asghar.e.esfandiari at nasa.gov
Goddard Earth Sciences Data and Information Services Center
NASA Goddard Space Flight Center
Province or State: MD
Postal Code: 20771
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