Polar Ozone and Aerosol Measurement III

POAM3 data are Polar Ozone and Aerosol Measurement III Version 3.0. The Polar Ozone and Aerosol Measurement (POAM) III instrument measures the vertical distribution of atmospheric ozone, water vapor, nitrogen dioxide, and aerosol extinction. The instrument was developed by the Naval Research Laboratory (NRL). POAM III was launched aboard the French SPOT-4 satellite in March 1998 into a Sun synchronous polar orbit.The POAM III 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 III measures solar extinction in nine narrow band channels, covering the spectral range from 354 to 1018 nm. Solar extinction by the atmosphere is measured using the solar occultation technique; the sun is observed through the Earth's atmosphere as it rises and sets, as viewed from the satellite.POAM III was launched aboard the French SPOT-4 satellite in March 1998 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.Each data granule contains one month of data for a particular hemisphere, taken at approximately 101 minute intervals. The latitudinal extent of data for the northern hemisphere is 54.68 to 71.01 and -62.55 to -88.11 for the southern hemisphere. The longitude ranges from 0 to 360. The data consists of profiles of ozone, nitrogen dioxide (NO2), and water vapor concentration, and aerosol extinction at 442 nm and 1018 nm.

Data and Resources

Additional Info

Field Value
Maintainer ASDC USER SERVICES
Last Updated March 31, 2025, 14:51 (UTC)
Created March 31, 2025, 14:51 (UTC)
accessLevel public
bureauCode {026:00}
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citation 2005-10-16. Archived by National Aeronautics and Space Administration, U.S. Government, NASA/LARC/SD/ASDC.
harvest_object_id 2cd4dd51-e426-4c4a-934c-0c49cc9248fe
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C1298916609-LARC_ASDC
issued 2014-03-28
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1298916609-LARC_ASDC.html
language {en-US}
metadata_type geospatial
modified 2018-05-01
programCode {026:001}
publisher NASA/LARC/SD/ASDC
resource-type Dataset
source_datajson_identifier true
source_hash ef5124cda572f63d08202ef720cb31da75502cc9d5a4ba02b5b61e697f6c137d
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temporal 1998-04-22T00:00:00Z/2005-12-05T23:59:59.999Z
theme {POAM,geospatial}