HR: 08:20h
AN: PP31E-02 INVITED    [Abstracts]
TI: Dust and climate interactions
AU: * Mahowald, N
EM: nmm63@cornell.edu
AF: NCAR, 1850 Table Mesa Dr., Boulder, CO 80307, United States
AU: * Mahowald, N
EM: nmm63@cornell.edu
AF: Cornell University, EAS, Ithaca, NY 14853, United States
AB: Mineral aerosol fluctuations are correlated with climate change proxies within ice and marine paleorecords. These fluctuations are thought to be indicators of large scale changes in aridity and transport patterns. The ability of dust fluctuations at individual points to be indicators of regional climate change will be considered through model reconstructions for different time periods and scenarios. In addition to indicating climate change, dust fluctuations can drive climate change through direct forcing of the atmospheric radiative budget. Simulations from the last glacial maximum, preindustrial and current climate are used as examples showing the radiative forcing and climate feedback from dust during these different time periods.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0315 Biosphere/atmosphere interactions (0426, 1610)
DE: 4902 Anthropogenic effects (1803, 4802)
SC: Paleoceanography and Paleoclimatology [PP]
MN: 2007 Fall Meeting