Sentences with phrase «multichannel microwave radiometer»

Useful satellite data concerning sea ice began in late 1978 with the launch of NASA's Scanning Multichannel Microwave Radiometer (SMMR) satellite.

The 1984 image was made from observations by the Scanning Multichannel Microwave Radiometer (SMMR) on the Nimbus - 7 satellite.

The primary sources of the post-1972 data are the hemispheric fields of sea - ice concentration from (1) the U.S. National Ice Center (NIC), whose weekly grids (derived primarily from satellite data) span the period 1972 - 1994, and (2) the satellite passive - microwave grids from the Scanning Multichannel Microwave Radiometer (SMMR) / Special Sensor Microwave / Imager (SSM / I) period, 1978 - 97 (Parkinson and others, 1999).

Since 1979, scientists have relied on a variety of satellite sensors, including the Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave / Imager (SSM / I), the Advanced Microwave Scanning Radiometer — Earth Observing System (AMSR - E), and (most recently) the Special Sensor Microwave Imager / Sounder (SSMIS).