AIRS/Aqua Level 3 daily CO2 in the free troposphere (AIRS+AMSU) V005 (AIRX3C2D) at GES DISCEntry ID: GES_DISC_AIRX3C2D_V005
Abstract: This is the AIRS mid-tropospheric Carbon Dioxide (CO2) Level 3 Daily Gridded Retrieval, from the AIRS and AMSU instruments on board of Aqua satellite. It is a daily gridded data, at 2.5x2 deg (lon)x(lat) grid cell size. The data is in mole fraction units (data x 10^6 =ppm in volume). This is a total tropospheric column property. The file format is HDF-EOS 2.12 corresponding to HDF4.
... This AIRS mid-tropospheric CO2 Level 3 daily Gridded Retrieval Product contains standard retrieval means, standard deviations and input counts as well as the latitude and longitude arrays giving the centers of the grid boxes. Each file covers a 24-hour period. The mean values are simply the arithmetic means of the individual CO2 retrievals which fall within that grid box over the period.
The mid-tropospheric CO2 retrievals have been averaged and binned into 2.5 x 2 deg grid cells, from -180.0 to +180.0 deg longitude and from -60.0 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."
(The Shortname for this product is AIRX3C2D).
Data Set Citation
Dataset Originator/Creator: AIRS Science Team/Joao Texeira
Dataset Title: AIRS/Aqua Level 3 Daily CO2 in the free troposphere (AIRS+AMSU)
Dataset Series Name: AIRX3C2D
Dataset Release Date: 2009-10-15
Dataset Release Place: Greenbelt, MD, USA
Dataset Publisher: Goddard Earth Science Data and Information Services Center (GES DISC)
Data Presentation Form: Digital Science Data
Dataset DOI: 10.5067/AQUA/AIRS/DATA338Online Resource: http://disc.sci.gsfc.nasa.gov/datacollection/AIRX3C2D_V005.html
Start Date: 2002-09-01Stop Date: 2012-02-29
Latitude Resolution: 2 degrees; 1.5 degrees at the Poles; Fill values < -60 degrees
Longitude Resolution: 2.5 degrees
Horizontal Resolution Range: 250 km - < 500 km or approximately 2.5 degrees - < 5.0 degrees
Temporal Resolution: Twice per day; Day and Night; Orbital repeat cycle 16 days
ISO Topic Category
Quality Users should read information contained within the two documents below to avoid misuse of the data in their research.
Data Set Progress
Distribution Media: FTP
Distribution Size: 0.5 MB
Distribution Format: HDF-EOS
Role: DIF AUTHOR
Role: TECHNICAL CONTACT
Email: Thomas.J.Hearty at nasa.gov
Distributed Active Archive Center Global Change Data Center Code 610.2 NASA Goddard Space Flight Center
Province or State: MD
Postal Code: 20771
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2009-10-05
Last DIF Revision Date: 2015-04-07
Future DIF Review Date: 2015-06-30