HR: 1340h
AN: A43C-1415    [Abstracts]
TI: Measurements of Area Resolved Surface Spectral Albedo and Validation of MODIS Land Albedo Product during MILAGRO, GoMACCS, and TC4
AU: * Coddington, O
EM: odele.coddington@lasp.colorado.du
AF: University of Colorado Laboratory for Atmospheric and Space Physics, Campus Box 392, Boulder, CO 80309-0392, United States
AU: Schmidt, K S
EM: sebastian.schmidt@lasp.colorado.edu
AF: University of Colorado Laboratory for Atmospheric and Space Physics, Campus Box 392, Boulder, CO 80309-0392, United States
AU: Pilewskie, P
EM: peter.pilewskie@lasp.colorado.edu
AF: University of Colorado Laboratory for Atmospheric and Space Physics, Campus Box 392, Boulder, CO 80309-0392, United States
AU: Gore, W J
EM: wgore@mail.arc.nasa.gov
AF: NASA Ames Research Center, Mail Stop 245-4, Moffett Field, CA 94035-1000, United States
AU: Bergstrom, R W
EM: bergstrom@baeri.org
AF: Bay Area Environmental Research Institute, 560 Third St. West, Sonoma, CA 95476, United States
AU: Roman, M
EM: mroman@bu.edu
AF: Boston University Department of Geography and Center for Remote Sensing, 675 Commonwealth Avenue, Boston, MA 02215, United States
AU: Redemann, J
EM: jredemann@mail.arc.nasa.gov
AF: Bay Area Environmental Research Institute, 560 Third St. West, Sonoma, CA 95476, United States
AU: Russell, P B
EM: Philip.B.Russell@nasa.gov
AF: NASA Ames Research Center, Mail Stop 245-4, Moffett Field, CA 94035-1000, United States
AU: Liu, J
EM: jcliu@bu.edu
AF: Boston University Department of Geography and Center for Remote Sensing, 675 Commonwealth Avenue, Boston, MA 02215, United States
AU: Schaaf, C
EM: schaaf@bu.edu
AF: Boston University Department of Geography and Center for Remote Sensing, 675 Commonwealth Avenue, Boston, MA 02215, United States
AB: Surface spectral albedo, a factor that strongly affects Earth's radiation balance, is a boundary condition which needs to be known with high accuracy for aerosol remote sensing, surface aerosol forcing, and radiative transfer calculations. We use Solar Spectral Flux Radiometer (SSFR) measurements of upward and downward irradiance to determine the area resolved surface spectral albedo (along the aircraft flight track) over the wavelength range between 350 and 2100 nm. Atmospheric measurements (altitude, pressure, temperature, relative humidity, aerosol loading, and aerosol optical properties) are used as inputs into an SSFR specific radiative transfer model. The model is then used iteratively in conjunction with the SSFR measurements to determine the contribution of the atmospheric layer between the flight altitude and the surface to the measured surface spectral albedo. Area resolved surface albedo results will be shown for case studies in three field campaigns where the SSFR was integrated on aircraft platforms: Megacity Initiative: Local and Global Research Observations (MILAGRO), Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS), and Tropical Composition, Cloud and Climate Coupling (TC4). Comparisons between the surface spectral albedo derived by the SSFR, the ground-based Multi-Filter Rotating Shadowband Radiometer (MFRSR), and the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument onboard the NASA-EOS Terra and Aqua satellites will be shown.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 3311 Clouds and aerosols
DE: 3359 Radiative processes
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting