HSB

From INVESaTWIKI

AQUA instruments - HSB

The Humidity Sounder for Brazil (HSB), a 4-channel microwave sounder provided by Brazil aimed at obtaining humidity profiles throughout the atmosphere. The HSB is the instrument in the AIRS/AMSU-A/HSB triplet that allows humidity measurements even under conditions of heavy cloudiness and haze. The HSB provided high quality data until February 2003.
On Aqua, it is particularly important to obtain humidities under overcast conditions. This artist's concept animation shows the HSB instrument measuring humidities at four levels in the atmosphere, each level indicated by a separate color. [1]

References

[1] http://aqua.nasa.gov/about/instrument_hsb.php