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Scanning Multichannel Microwave Radiometer (SMMR) Monthly Mean Integrated Water Vapor (IWV) By Prabhakara

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Abstract: SMMR_IWV_PRABHAKARA data are Special Multichannel Microwave Radiometer (SMMR) Monthly Mean Integrated Water Vapor (IWV) data by Prabhakara.

The Scanning Multichannel Microwave Radiometer (SMMR) Prabhakara integrated atmospheric water vapor (IWV) files were generated by Dr. Prabhakara Cuddapah at the Goddard Space Flight Center (GSFC) using SMMR Antenna Temperatures. A discussion of the SMMR Antenna Temperatures is available from the Langley Research Center Distributed Active Archive Center (DAAC). Each IWV file contains one month of 3 degree by 5 degree gridded mean water vapor. A scale factor of 0.1 must be applied to convert the data into units of g/cm2. The data spans the period from October 1979 to September 1983.
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Description: Access SMMR Data and Information
Geographic Coverage
Spatial coordinates   
  N: 75.0   S: -75.0   E: 180.0   W: -180.0

Temporal Coverage
Start Date: 1979-10-01
Stop Date: 1983-09-30
Data Resolution
Latitude Resolution: 3 Degree
Longitude Resolution: 5 Degree
Horizontal Resolution Range: 500 km - < 1000 km or approximately 5 degrees - < 10 degrees
Temporal Resolution: Monthly
Temporal Resolution Range: Monthly - < Annual
Nimbus-7 Ancillary Description
Originating Center
Data Center
Atmospheric Science Data Center, Science Directorate, Langley Research Center, NASA Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 757-864-8656
Email: support-asdc at
Contact Address:
NASA Langley Atmospheric Science Data Center
User and Data Services
NASA Langley Research Center
Mail Stop 157D
City: Hampton
Province or State: VA
Postal Code: 23681-2199
Country: USA
Phone: 256-961-7890
Email: Michael.Goodman at
Contact Address:
Global Hydrology and Climate Center
320 Sparkman Dr
City: Huntsville
Province or State: AL
Postal Code: 35805
Country: USA
View entire list
Prabhakara, C., H. D. Chang, and T. C. Chang, 1982: Remote Sensing of
Precipitable Water over the Oceans from Nimbus 7 Microwave
Measurements. J. Appl. Meteor., Vol. 21, No. 1, 59-68.

Prabhakara, C., G. Dalu, J. J. Nucciarone, and G. L. Liberti, 1992:
Rainfall over Oceans: Remote Sensing from Satellite Microwave
Radiometers. Meteorol, Atmos. Phys., 47, 177-199.
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Creation and Review Dates
Last DIF Revision Date: 2015-08-06