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Instrument

NAST-M
NPOESS Aircraft Sounder Testbed Microwave Radiometer

The NPOESS Aircraft Sounder Testbed - Microwave (NAST-M) is an airborne microwave radiometer maintained by the Massachusetts Institute of Technology (MIT). It measures brightness temperature which can be used to retrieve water vapor profiles in the atmosphere. It consists of two radiometers with one operating across 8 channels between 50-57 GHz and the other operating across 9 channels at 118 GHz. In 2003, NAST-M was upgraded with two additional radiometers operating at 183 and 425 GHz to improve water vapor retrievals and the detection of small hydrometeors. NAST-M has a spatial resolution of 2.6 km and cross-track swath width of 100 km at a flight altitude of 20 km. It has a typical integration time of 100 ms.

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

Spectrometer/Radiometer
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
Earth Science > Spectral/engineering > Microwave > Brightness Temperature
Earth Science > Atmosphere > Atmospheric Water Vapor
Earth Science > Atmosphere > Atmospheric Temperature
Lower Stratosphere
100 ms
2.6 km
50-57 GHz, 118 GHz, 183 GHz, 425 GHz
External Linkhttps://doi.org/10.1109/36.964981
  • R. Vincent Leslie

  • R. Vincent Leslie

  • MIT

  • NASA

  • External LinkOverview Publication

TOST

The Observing system Research and Predictability Experiment (THORPEX) Observing System Test

2003
Pacific Ocean, California, Hawaii (PTOST) Atlantic Ocean, Eastern United States, Canada (ATOST)
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2 Deployments
· 0 Data Products

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