Data Sets

NSIDC maintains and distributes two TOVS data products as part of the NOAA/NASA Polar Pathfinder Program. The following table lists the TOVS data products available at NSIDC. Click on the data set title to access documentation and order data.

Title Spatial Coverage Temporal Coverage Spatial Resolution Temporal Resolution Parameter(s)

AMSR-E/Aqua Monthly Global Microwave Land Surface Emissivity, Version 1

Dataset Summary

This data set is a global land emissivity product using passive microwave observations from the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E). The data set complements existing land emissivity products from the Special Sensor Microwave Imager (SSM/I) and Advanced Microwave Sounding Unit (AMSU) by adding land emissivity estimates at two lower frequencies, 6.9 and 10.65 GHz (C- and X-band, respectively). Observations at these low frequencies penetrate deeper into the soil layer. Land surface emissivity estimates for this data set were collected at the following vertically and horizontally polarized (V-pol and H-pol) frequencies: 6.9, 10.65, 18.7, 23.8, 36.5, and...

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N: 90, S: -90, E: 180, W: -180

2002/07/01 to 2008/06/30 0.25 deg-0.25 deg 1 month Emissivity

TOVS Pathfinder Path-P Daily and Monthly Polar Gridded Atmospheric Parameters, Version

Dataset Summary

The TIROS-N Operational Vertical Sounder (TOVS) Polar Pathfinder (Path-P) data set consists of gridded daily and monthly Arctic and Antarctic atmospheric data derived from various NOAA satellites. TOVS Path-P daily files are available for the Northern and Southern Hemispheres from 60 degrees poleward at 100 km gridded spatial resolution in an Equal-Area Scalable Earth Grid (EASE-Grid). TOVS Path-P monthly files are available for the Northern Hemisphere only from 60 degrees poleward at 100 km gridded spatial resolution in EASE-Grid. Daily and monthly Northern Hemisphere data are available from January 1979 through current processing, and daily Southern Hemisphere data are available from...

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N: 90, S: 60, E: 180, W: -180


N: -60, S: -90, E: 180, W: -180

1979/01/01, 1979/07/12 100 km-100 km to Air Temperature, Cloud Top Pressure, Cloud Top Temperature, Cloud Amount/Frequency, Emissivity, Wind Stress, Precipitable Water, Skin Temperature, Surface Air Temperature