HR: 17:30h
AN: A34D-07    [Abstracts]
TI: Relationships between ISCCP Cloud Cover Amounts and Energy Budget Terms from the NASA/GEWEX SRB
AU: * Hinkelman, L
EM: laurahin@u.washington.edu
AF: JISAO/University of Washington, Box 354235, Seattle, WA 28195, United States
AU: Mikovitz, C
AF: SSAI, 1 Enterprise Parkway, Suite 200, Hampton, VA 23666, United States
AU: Stackhouse, P
AF: NASA Langley Research Center, Mail Stop 420, Hampton, VA 23681, United States
AU: Wielicki, B
AF: NASA Langley Research Center, Mail Stop 420, Hampton, VA 23681, United States
AB: The ISCCP (International Satellite Cloud Climatology Project) has now produced over 20 years of global cloud data which is used as an input for computing the Earth's radiative energy budget by the NASA/GEWEX SRB (Surface Radiation Budget.) Since both of these mutidecadal records are being used to analyze long-term global trends, it is important to understand the degree to which the two records are linked. We present the results of a study comparing the trends in total cloud amount and the amounts of high, middle, and low clouds from ISCCP to the trends in surface solar fluxes and atmospheric absorption in the SRB. In particular, we will demonstrate that the "geo artifacts" observed in the ISCCP cloud data do not control the long-term trends in the SRB downwelling solar flux at the surface. We will also show the contributions of each cloud type to both the ISCCP "artifact" and the column energy budget.
DE: 0321 Cloud/radiation interaction
DE: 0360 Radiation: transmission and scattering
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 1640 Remote sensing (1855)
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting