Entry_ID: NSIDC-0071
Entry_Title: Nimbus-7 SMMR Pathfinder Daily EASE-Grid Brightness Temperatures
Group: Data_Set_Citation
   Dataset_Creator: Knowles, K., E. G. Njoku, R. Armstrong, and M. Brodzik. 
   Dataset_Title: Nimbus-7 SMMR Pathfinder Daily EASE-Grid Brightness Temperatures
   Dataset_Release_Date: 2000-01-01
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0071.html
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   Last_Name: User Services
   Email: nsidc@nsidc.org
   Phone: 1 303 492-6199 x
   Fax: 1 303  492-2468 x
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Kenneth
   Last_Name: Knowles
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Mary J.
   Last_Name: Brodzik
   Email: brodzik@nsidc.org
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Richard
   Last_Name: Armstrong
   Email: rlax@nsidc.org
   Phone: 1 303 492-6199 
   Fax: 1 303  492-2468 
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: National Snow and Ice Data Center
      Address: CIRES 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: Colorado
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Richard
   Last_Name: Armstrong
   Email: rlax@nsidc.org
   Phone: 1 303 492-6199 
   Fax: 1 303  492-2468 
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: National Snow and Ice Data Center
      Address: CIRES 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: Colorado
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Eni
   Middle_Name: G.
   Last_Name: Njoku
   Email: njoku@lor.jpl.nasa.gov
   Phone: 1 818 354-3693 
   Group: Contact_Address
      Address: California Institute of Technology
      Address: Jet Propulsion Laboratory
      Address: M/S 300-233
      Address: Jet Propulsion Laboratory
      Address: California Institute of Technology
      Address: 4800 Oak Grove Drive
      City: Pasadena
      Province_or_State: CA
      Postal_Code: 91109-8099
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Microwave
   Variable_Level_1: Brightness Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Microwave
   Variable_Level_1: Brightness Temperature
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Antarctic
Keyword: Arctic
Keyword: BRIGHTNESS TEMPERATURES
Keyword: Ease
Keyword: EASE-Grid
Keyword: EOSDIS
Keyword: Global
Keyword: Gridded Data
Keyword: NIMBUS-7
Keyword: Northern Hemisphere
Keyword: Passive Microwave
Keyword: Pathfinder
Keyword: Polar
Keyword: RADIOMETER
Keyword: Scanning Multichannel Microwave Radiometer
Keyword: SMMR
Keyword: Southern Hemisphere
Sensor_Name: SMMR > Scanning Multichannel Microwave Radiometer
Source_Name: NIMBUS-7
Group: Temporal_Coverage
   Start_Date: 1978-10-25
   Stop_Date: 1987-08-20
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -90
   Northernmost_Latitude: 90
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: GLOBAL
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: NORTHERN HEMISPHERE
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: SOUTHERN HEMISPHERE
End_Group
Group: Data_Resolution
   Latitude_Resolution: 25 km
   Longitude_Resolution: 25 km
End_Group
Group: Data_Resolution
   Latitude_Resolution: 25 km
   Longitude_Resolution: 25 km
   Temporal_Resolution: 1 day
End_Group
Project: EOSDIS > Earth Observing System Data Information System
Project: ESIP > Earth Science Information Partners Program
Project: NOAA/NASA PATHFINDER > NOAA/NASA Pathfinder Program
Group: Quality

   Quality indicator flags were provided in the level 1b data for the scan status 
   word of each scan. These flags indicated conditions in the original data or in 
   the data processing that may have given rise to reduced-quality calibrated 
   output. None of these data were eliminated from the gridded product

End_Group
Data_Set_Language: English
Originating_Center: NSIDC
Group: Data_Center
   Data_Center_Name: NASA DAAC > NASA DAAC at the National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org/daac/index.html
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 83 MB
   Distribution_Format: Binary
End_Group
Group: Reference

   Brodzik, M. J. 1998. The EASE-Grid, A Versatile Set of Equal-Area Projections 
   and Grids. Special report to the National Snow and Ice Data Center, Boulder, 
   CO.  Frances, E. A. 1987. Calibration of the Nimbus-7 Scanning Multichannel 
   Microwave Radiometer (SMMR) 1979-1984. Master's Thesis, College of 
   Oceanography, Oregon State University, Corvallis, OR.

   Fu, C. C., D. Han, S. T. Kim, and P. Gloersen. 1988. User's Guide for the 
   Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) CELL-ALL tape. NASA 
   Reference Publication #1210, National Aeronautics and Space Administration, 
   Washington, D.C.

   Gloersen, P., W. J. Campbell, D. J. Cavalieri, J. C. Comiso, C. L. Parkinson, 
   and H. J. Zwally. 1992. Arctic and Antarctic Sea Ice, 1978-1987: Satellite 
   Passive Microwave Observations and Analysis. NASA Special Publication SP-511. 
   National Aeronautics and Space Administration. Washington, D.C.

   Gloersen, P. 1987. In-orbit Calibration Adjustment of the Nimbus-7 SMMR. NASA 
   Technical Memorandum #100678, National Aeronautics and Space Administration. 
   Washington, D.C.

   Gloersen, P., D. J. Cavalieri, A. T. C. Chang, T. T. Wilheit, W. J. Campbell, 
   O. M. Johannessen, K. B. Katsaros, K. F. Kunzi, D. B. Ross, D. Staelin, E. P. 
   L. Windsor, F. T. Barath, P. Gudmansen, E. Langham, and R. Ramseier. 1984. A 
   Summary of Results from the First Nimbus-G SMMR Observations. Journal of 
   Geophysical Research 89:5335-44.

   Gloersen, P. and F. T. Barath. 1977. A Scanning Multichannel Microwave 
   Radiometer for Nimbus-7 and Seasat-A. IEEE Journal of Oceanic Engineering 
   OE-2:172-178.

   Hofer, R. and E. G. Njoku. 1981. Regression Techniques for Oceanographic 
   Parameter Retrievals Using Spaceborne Microwave Radiometry. IEEE Transactions 
   on Geoscience and Remote Sensing GE-19:178-89.

   Knowles, Kenneth W. 1993. Points, Pixels, Grids, and Cells: A Mapping and 
   Gridding Primer. Special report to the National Snow and Ice Data Center, 
   Boulder, CO.

   Liu, W. T. and D. R. Mock. 1986. Evaluation of Geophysical Parameters Measured 
   by the Nimbus-7 Microwave Radiometer for the TOGA Heat Exchange Project. JPL 
   Publication 86-50, Jet Propulsion Laboratory, Pasadena, CA.

   Madrid, C. R. (Ed.). 1978. The Nimbus 7 User's Guide. Landsat/Nimbus Project, 
   Goddard Space Flight Center, Greenbelt, MD.

   McMillan, D. S. and D. Han. 1990. Long-term Trends and Instrument Warm-up 
   Effects in Nimbus-7 Scanning Multichannel Microwave Radiometer Radiances. 
   (Unpublished Document), NASA Goddard Space Flight Center, Greenbelt, MD.

   Milman, A. S. and T. T. Wilheit. 1985. Sea Surface Temperatures from the 
   Scanning Multichannel Microwave Radiometer on Nimbus-7. Journal of Geophysical 
   Research 90:11631-41.

   Njoku, E. G., B. Rague, and K. Fleming. 1998. Nimbus-7 SMMR Pathfinder 
   Brightness Temperature Data. JPL Publication 98-4. Jet Propulsion Laboratory. 
   Pasadena, CA.  Njoku, E. G. 1980. Antenna Pattern Correction Procedures for 
   the Scanning Multichannel Microwave Radiometer (SMMR). Boundary-Layer 
   Meteorology 18:79-98.  Njoku, E. G., J. M. Stacey, and F. T. Barath. 1980. The 
   Seasat Scanning Multichannel Microwave Radiometer (SMMR): Instrument 
   Description and Performance. IEEE Journal of Oceanic Engineering OE-5:125-37.

   Swanson, P. N. and A. L. Riley. 1980. The Seasat Scanning Multichannel 
   Microwave Radiometer (SMMR): Radiometric Calibration Algorithm Development and 
   Performance. IEEE Journal of Oceanic Engineering OE-5:116-24.

   Systems and Applied Sciences Corporation. 1982. User's Guide for the Scanning 
   Multichannel Microwave Radiometer Instrument First-Year Antenna Temperature 
   Data Set. SASC, Contractor Report #NAS5-27393. Goddard Space Flight Center. 
   Greenbelt, MD.

   Wentz, F. J. and E. A. Frances. 1992. Nimbus-7 SMMR Ocean Products 1979-1984. 
   RSS Technical Report 033192. Remote Sensing Systems. Santa Rosa, CA.

End_Group
Group: Summary

   This data set consists of brightness temperatures acquired from the Scanning 
   Multichannel Microwave Radiometer (SMMR) on board the Nimbus-7 Pathfinder 
   satellite. The brightness temperatures have been gridded onto the Equal-Area 
   Scalable Earth Grid (EASE-Grid) and are presented in three different 
   projections: Northern Hemisphere, Southern Hemisphere, and global. The SMMR 
   EASE-Grid data were derived from SMMR brightness temperatures in swath format 
   (level 1b data). Coverage is global, and data are available from 25 October 
   1978 through 20 August 1987. The spatial resolution is 25 km for all channels 
   (6.6, 10.7, 18, 21, and 37 GHz for both vertical and horizontal 
   polarizations). Both brightness temperatures and time files are provided for a 
   given projection in flat binary format for each day. The brightness 
   temperatures are provided in tenths of kelvins and the time files are in 
   minutes since 0:00 Coordinated Universal Time (UTC) of the date of the 
   enclosing file. Data are available via FTP. Users may also order data on 
   CD-ROM while supplies last.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/pathfinders/index.html
   Description: NOAA/NASA Polar Pathfinder Data
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/daac/pathfinder/index.html
   Description: Polar Pathfinder Program
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/ease/index.html
   Description: All About EASE-Grid
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0001.html
   Description: DMSP SSM/I Daily Polar Gridded Brightness Temperatures
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0032.html
   Description: DMSP SSM/I Pathfinder Daily EASE-Grid Brightness Temperatures
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0009.html
   Description: Nimbus-5 ESMR Polar Gridded Brightness Temperatures and Sea Ice Concentrations
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0036.html
   Description: Nimbus-7 SMMR Pathfinder Brightness Temperatures
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0007.html
   Description: Nimbus-7 SMMR Polar Radiances and Arctic and Antarctic Sea Ice Concentrations
End_Group
IDN_Node: USA/NASA
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2000-01-01
Last_DIF_Revision_Date: 2013-08-13
DIF_Revision_History:  removed nisdc0002 from see also list