HR: 0800h
AN: B51A-0179 [Abstracts]
TI: Satellite Measurements of Daily Variations in Soil NOx Emissions
AU: * Bertram, T H
EM: tbertram@berkeley.edu
AF: Department of Chemistry;
University of California, Berkeley, Latimer Hall, Berkeley, CA 94720
United States
AU: Heckel, A
EM: Andreas.Heckel@iup.physik.uni-bremen.de
AF: Institute of Environmental Physics
University of Bremen, P.O. Box 33 04 40, Bremen, D-28334
Germany
AU: Richter, A
EM: Andreas.Richter@iup.physik.uni-bremen.de
AF: Institute of Environmental Physics
University of Bremen, P.O. Box 33 04 40, Bremen, D-28334
Germany
AU: Burrows, J P
EM: burrows@iup.physik.uni-bremen.de
AF: Institute of Environmental Physics
University of Bremen, P.O. Box 33 04 40, Bremen, D-28334
Germany
AU: Cohen, R C
EM: cohen@cchem.berkeley.edu
AF: Department of Chemistry;
University of California, Berkeley, Latimer Hall, Berkeley, CA 94720
United States
AU: Cohen, R C
EM: cohen@cchem.berkeley.edu
AF: Department of Earth and Planetary Sciences;
University of California,
Berkeley, McCone Hall, Berkeley, CA 94720
United States
AB:
Soil NOx (NOx,s) emission from agricultural regions in the western United States has been investigated using
spaced-based observations of NO2 from the SCIAMACHY (Scanning Imaging Absorption spectroMeter for Atmospheric
CHartographY) instrument. The high spatial and temporal resolution of SCIAMACHY captures the short intense NOx pulses
following fertilizer application and subsequent precipitation. Tuning of the mechanistic parameters that drive NOx,s emission
yield an updated local NOx,s emission estimate capable of capturing the detailed enhancements observed from space.
These results demonstrate that the information contained in current space-based observations of NO2 is such that future
inverse modeling studies could tune the mechanistic parameters contained in the a priori, rather than solely the
magnitude of an existing NOx,s source strength.
DE: 0315 Biosphere/atmosphere interactions (0426, 1610)
DE: 0469 Nitrogen cycling
SC: Biogeosciences [B]
MN: Fall Meeting 2005