Nimbus-7 SMMR Pathfinder Brightness Temperatures  View Catalog Page Entry ID
NSIDC-0036
Summary
The Nimbus-7 SMMR Pathfinder Brightness Temperatures data set contains global brightness temperatures in swath format (level 1b) from 25 October 1978 to 20 August 1987. The instrument obtained near-global coverage at five frequencies (6.6, 10.7, 18, 21, and 37 GHz) in both horizontal and vertical polarizations, at a constant incidence angle of 50.3 degrees, every six days. Data are stored as daily orbit files in compressed Hierarchical Data Format (HDF) and are available on FTP.
The Nimbus-7 SMMR Level 1B Pathfinder data set was created at the Jet Propulsion Laboratory (JPL) from a level 1A 'TAT' data set provided by the Goddard Space Flight Center (GFSC). The SMMR operated continuously from 25 Oct 1978 through 16 November 1987, at which time it began alernate-day operation. The processed level 1B SMMR data are stored as orbit files in HDF format. Each level 1B orbit file covers a time period of approximately 104.16 minutes. The file size for an uncompressed orbit file is approximately 4.3 megabytes. The total volume of the level 1B data set is approximately 70 gigabytes (compressed).
Geographic Coverage
Spatial Coordinates:
N: 84°
S: -84°
E: 180°
W: -180°
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Data Set Citation
Dataset Creator: NJOKU, ENI G.
Dataset Title: Nimbus-7 SMMR Pathfinder Brightness Temperatures
Dataset Release Date: 2003-06-11
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0036.html
Temporal Coverage
Start Date: 1978-10-25
Stop Date: 1987-08-20
Location Keywords
- GEOGRAPHIC REGION GLOBAL
Science Keywords
- Spectral/Engineering Microwave Brightness Temperature
Ancillary Keywords
- ANTENNA TEMPERATURES
- EOSDIS
- HDF
- Passive Microwave
- TAT
- TDR
Platform
Instrument
- RADIOMETERS
- SMMR Scanning Multichannel Microwave Radiometer
Project
- EOSDIS Earth Observing System Data Information System
- ESIP Earth Science Information Partners Program
- NOAA/NASA PATHFINDER NOAA/NASA Pathfinder Program
Data Set Progress
complete
Data Center
NASA DAAC at the National Snow and Ice Data Center
Data Center URL: http://nsidc.org/daac/index.html
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Distribution
Distribution Media: FTP
Distribution Format: HDF
Personnel
Eni G. Njoku
Role: INVESTIGATOR
Phone: 1 818 354-3693
Email: njoku@lor.jpl.nasa.gov
Contact Address:
- California Institute of Technology
- Jet Propulsion Laboratory
- M/S 300-233
- Jet Propulsion Laboratory
- California Institute of Technology
- 4800 Oak Grove Drive
City: Pasadena
Province or State: CA
Postal Code: 91109-8099
Country: USA
NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Reference
Njoku, E. G., B. Rague, and K. Flemming. 1995. Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) Brightness Temperature Data (SMMR Level 1B Pathfinder). Jet Propulsion Laboratory. Pasadena, California USA. User's Guide for the Scanning Multichannel Microwave Radiometer Instrument First Year Antenna Temperature Data Set. Systems & Applied Sciences Corporation. August 1982. NASA Contract NAS5-27393.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2003-06-11
Last DIF Revision Date: 2012-07-25
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