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Instrument: POAM II : Polar Ozone and Aerosol Measurement II
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Associated Platforms

Spectral/Frequency Information
Wavelength Keyword: Ultraviolet
Spectral/Frequency Coverage/Range: 350 nm to 1060 nm

Wavelength Keyword: Near Infrared
Spectral/Frequency Coverage/Range: 350 nm to 1060 nm

Related Data Sets
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The Polar Ozone and Aerosol Measurement II (POAM II) instrument was developed by the Naval Research Laboratory (NRL) to measure the vertical distribution of atmospheric ozone, water vapor, nitrogen dioxide, aerosol extinction, and temperature. POAM II measures solar extinction in nine narrow band channels, covering the spectral range from approximately 350 to 1060 nm.

POAM II was launched aboard the French SPOT-3 satellite on 26 september, 1993 into a Sun synchronous polar orbit. As seen from the satellite, the Sun rises in the north polar region and sets in the south polar region 14.2 times per day. Sunrise measurements are made in a latitude band from 55-71 degrees north while sunsets occur between 63-88 degrees south.

Further details about the POAM II instrument can be found in Glaccum, et al. [1996]. The POAM II mission was interrupted by the failure of the SPOT-3 satellite in November of 1996. A follow-on instrument, POAM III, was subsequently launched on the SPOT-4. satellite in March 1998 and is currently operational.

"The Polar Ozone and Aerosol Measurement (POAM II) Instrument", W.Glaccum,
R.Lucke, R.M.Bevilacqua, E.P.Shettle, J.S.Hornstein, D.T.Chen, J.D.Lumpe,
S.S.Krigman, D.J.Debrestian, M.D.Fromm, F.Dalaudier, E.Chassefiere, C.Deniel,
C.E.Randall, D.W.Rusch, J.J.Olivero, C.Brogniez, J.Lenoble, & R.Kremer, J.
Geophys. Res., 101, 14,479-14,487, 1996.

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Instrument Logistics
Instrument Owner: United States Navy