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Instrument: HSB : Humidity Sounder for Brazil
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Associated Platforms
AQUA

Spectral/Frequency Information
Wavelength Keyword: Microwave
Number Channels: 4 Channels
Spectral/Frequency Coverage/Range: 150 - 190 GHz

Related Data Sets
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Description
HSB is a 4-channel microwave sounder designed to obtain atmospheric humidity profiles under cloudy conditions and to detect heavy precipitation under clouds. The four HSB channels have a 1.1? beam width, resulting in a nominal horizontal spatial resolution of 13.5 km.

Three of the HSB channels make measurements on the wings of the strongly opaque water vapor resonance line at 183.3 GHz; the fourth makes measurements at 150 GHz. Successive channels have decreasing opacity and consequently their data correspond to humidities at decreasing altitudes. The four HSB channels improve the humidity profiles from AIRS/AMSU-A in the presence of liquid water.

Key HSB Facts
Heritage: AMSU-B
Aperture: 18.8 cm
Swath Width: 1650 km
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Online Resources
http://aqua.nasa.gov/about/instrument_hsb.php
http://disc.gsfc.nasa.gov/AIRS/documentation/hsb_instrument_guide.shtml

Instrument Logistics
Data Rate: 4.2 kbps
Instrument Start Date: 2002-08-31
Instrument Stop Date: 2003-02-05
Instrument Owner: Instituto Nacional de Pesquisas Espaciais (INPE, the Brazilian Institute for Space Research)

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