Considerations on Validation of Space Based CO2 Measurement
William
Stanley
Heaps, NASA Goddard, William.S.Heaps@nasa.gov
(Presenting)
Elena
Georgieva, UMBC, Elena.M.Georgieva.1@gsfc.nasa.gov
Emily
L
Wilson, NASA Goddard, ewilson@pop500.gsfc.nasa.gov
The precision requirements for total column CO2 measurement from space are more stringent than any ever attempted. Similarly the requirements on a validation system for a spaceborne CO2 column measurement are very demanding. We at Goddard have been developing a Fabry-Perot based instrument for remote sensing of CO2 column. This instrument holds high promise for offering a relatively inexpensive method for measuring CO2 column from the ground at very high precision--necessary for validating space borne instruments. We shall present some results obtained using our instrument and discuss some of the factors necessary for making a measurement of total column CO2 with precision less than 1%.