NERC Data Catalogue Service
Polar Pathfinder Sampler (PPSM): SMMR and SSM/I Pathfinder brightness temperature data (1978-1987)
The SMMR and SSM/I Pathfinder brightness temperatures provide scientists with more than 20 years of consistently processed, passive microwave data for use in climatological and earth science research. Each file represents gridded data for a single sensor channel and polarization, derived from either ascending or descending orbits for one day, thereby allowing discrimination of diurnal changes in earth surface processes.
Each data sets consists of three series: the Northern and Southern Hemispheres and a global projection. Grids represent spatially interpolated data. The interpolation techniques maximize the radiometric integrity of original brightness temperature values, maintain high spatial and temporal precision, and involve no averaging of original swath data.
SMMR coverage began October 1978 and continued through July 1987. Grid resolution is 25 km for all channels. SSM/I coverage began August 1987 and continues through the present. Processing is ongoing with current data available within three to six months of sensor data acquisition. Resolution is 25 km for all channels and 12.5 km for the 85 GHz channels.
A sample data set comprising selected SSM/I EASE-Grid brightness temperature data and time files for all three projections from September 8 (day 251), 1997 is included on this CD-ROM.
Default
Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 2007-02-06T02:45:46
- Dataset Reference Date ()
- 2007-02-06T02:45:46
- Identifier
- NCAS British Atmospheric Data Centre (NCAS BADC) / 80a0863baa49f11c9c7ca7a570208346
- Maintenance and update frequency
- notPlanned
- Update scope
- dataset
- Keywords
-
- CLOUDS
- ATMOSPHERE
- SEAICE
- CRYOSPHERE
- ATMOSPHERICWATERVAPOR
- ATMOSPHERICWINDS
- SNOW
- ATMOSPHERICTEMPERATURE
- ATMOSPHERICRADIATION
- ENGINEERING
- SPECTRAL
- GEMET - INSPIRE themes, version 1.0 ()
-
- atmospheric conditions
- Limitations on Public Access
- otherRestrictions
- Other constraints
- Public data: access to these data is available to both registered and non-registered users.
- Use constraints
- otherRestrictions
- Spatial representation type
- grid
- Topic category
-
- Climatology, meteorology, atmosphere
))
- Begin date
- 1978-10-24T23:00:00
- End date
- 1987-08-19T23:00:00
- Code
- WGS 84
Distribution Information
- Data format
-
-
Data are binary and HDR formatted. Images are GIF formatted.
()
-
Data are binary and HDR formatted. Images are GIF formatted.
()
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
DOWNLOAD
Download Data
- Resource Locator
-
PPSM SSMI data documentation
No further details.
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
DOWNLOAD
Download Data
- Resource Locator
-
PPSM SSMI data documentation
No further details.
- Quality Scope
- dataset
Report
- Dataset Reference Date ()
- 2010-12-08
- Statement
- CD-ROM data produced by the National Snow and Ice Data Centre and published in 2000. Data are stored at the BADC.
Metadata
- File identifier
- 80a0863baa49f11c9c7ca7a570208346 XML
- Metadata Language
- English (en)
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646
- Parent identifier
- Polar Pathfinder Sampler (PPSM): Combined Time Series of Atmospheric and Surface Measurements from the AVHRR, SMMR-SSM/I and TOVS Satellites a6ca5bc1b36d1b1a83cba4e4ac4b0bac
- Resource type
- dataset
- Metadata Date
- 2023-03-30T23:54:18
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
