HR: 1340h
AN: IN13B-1085    [Abstracts]
TI: Improved Prospects for Precision Measurement of CO2 Column from Space
AU: * Heaps, W S
EM: William.S.Heaps@nasa.gov
AF: NASA, Goddard Space flight Center, Greenbelt, MD 220771 United States
AU: Kawa, S R
EM: Stephen.R.Kawa@nasa.gov
AF: NASA, Goddard Space flight Center, Greenbelt, MD 220771 United States
AU: Wilson, E L
EM: Emily.L.Wilson@nasa.gov
AF: NASA, Goddard Space flight Center, Greenbelt, MD 220771 United States
AU: Burris, J F
EM: John.F.Burris@nasa.gov
AF: NASA, Goddard Space flight Center, Greenbelt, MD 220771 United States
AU: Georgieva, E
EM: egeorgie@pop500.gsfc.nasa.gov
AF: SSAI, Inc., 10210 Greenbelt Road, Lanham, MD 20706 United States
AB: To address the problem of sources and sinks of CO2 measurements are needed on a global scale that is probably most conveniently addressed by a satellite. However, most methods for making a CO2 measurement from space involve the whole column. Since sources and sinks at the surface represent a small perturbation to the total column one is faced with the need to measure the column with a precision better than 1%. No species has ever been measured from space at this level. Over the last 3 years our team has developed a small instrument based upon a Fabry-Perot interferometer that is very sensitive to atmospheric CO2 and has a high signal to noise ratio. We have tested this instrument in a ground based configuration and from aircraft platforms simulating operation from a satellite. We will describe the technique, present results from these tests, and discuss ways that this promising new instrument system can be employed to improve our understanding of the global carbon budget.
DE: 6924 Interferometry (1207, 1209, 1242)
DE: 6969 Remote sensing
DE: 6982 Tomography and imaging (7270, 8180)
DE: 6994 Instruments and techniques (1241)
DE: 9805 Instruments useful in three or more fields
SC: Earth and Space Science Informatics [IN]
MN: Fall Meeting 2005