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Instrument

SLAP
Scanning L-Band Active/Passive

The Scanning L-Band Active/Passive (SLAP) is an airborne remote sensor developed at Goddard Space Flight Center (GSFC). SLAP is an airborne simulator for NASA’s Soil Moisture Active/Passive (SMAP) satellite and is used to retrieve measurements of soil moisture and soil freeze/thaw state. It consists of three separate instruments: a passive microwave radiometer, an active scatterometer, and a thermal infrared sensor for surface temperature measurements. The radiometer operates at the 1.4 GHz frequency, while the scatterometer operates in the 1.2-1.3 GHz range. SLAP has a footprint of 100x200 meters for a flight altitude of 300 meters.

NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Instrument Details

Multi
Earth Science > Land Surface > Soils > Soil Moisture/water Content
Earth Science > Agriculture > Soils > Soil Moisture/water Content
Earth Science > Land Surface > Soils > Soil Salinity/soil Sodicity
Earth Science > Spectral/engineering > Microwave > Brightness Temperature
Earth Science > Spectral/engineering > Radar > Radar Backscatter
Earth Science > Agriculture > Soils > Soil Salinity/soil Sodicity
Land Surface
N/A
100x200m
1.4 GHz, 1.2-1.3 GHz
https://doi.org/10.1109/IGARSS.2016.7729068External Link
  • Edward Kim

  • Edward Kim

  • GSFC

  • Currently unavailable

  • Currently unavailable

  • Currently unavailable