Retrieval of tropospheric methane from MOPITT measurements: algorithm description and simulations

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

Tropospheric concentrations of methane have been increasing at a rate of approximately 1%/year, though recent measurements suggest some slowing in this trend. Increased concentrations of methane, a greenhouse gas, will have significant consequences for tropospheric chemistry and climate on a global scale. Characterization of the spatial and temporal variability of methane is one goal of the MOPITT (Measurement of Pollution In The Troposphere) instrument included on the EOS Terra satellite. This instrument includes spectral channels designed to measure methane total column with approximately 1% precision with a spatial resolution of approximately 22 X 22 km. Retrieval of the methane total column will be accomplished by the MOPITT instrument from measurements of solar radiation reflected at the earth's surface. Gas correlation radiometry will be used to separate the spectral signature of methane in the upwelling radiance from features produced by other trace gases. The retrieval algorithm is based on maximum likelihood and uses an initial guess profile and methane total column variance estimates provided by aircraft in-situ measurements. In this talk, we will describe features of the retrieval algorithm in detail and present results of retrieval simulations conducted to test the sensitivity of the retrieval algorithm to various sources of error.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Retrieval of tropospheric methane from MOPITT measurements: algorithm description and simulations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Retrieval of tropospheric methane from MOPITT measurements: algorithm description and simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retrieval of tropospheric methane from MOPITT measurements: algorithm description and simulations will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1545026

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.