HR: 1340h
AN: PP33C-1578    [Abstracts]
TI: Dust in Polar Ice Cores as a Climate Change Indicator
AU: * Ram, M
EM: phymram@buffalo.edu
AF: Michael Ram, University at Buffalo 239 Fronczak Hall, Buffalo, NY 14221 United States
AU: Stolz, M R
EM: stolz@buffalo.edu
AF: Michael Ram, University at Buffalo 239 Fronczak Hall, Buffalo, NY 14221 United States
AB: Measurements show that the dust concentration varies continuously along polar ice cores. These changes seem to occur at times of global climate change, and it is believed that they can be used to gauge past global climate change. Changes in dust size distribution have also been observed in polar ice cores and are also believed to be associated with past climate change, for example, changing wind strength. In this paper, we review some of the more significant changes in dust concentration and size distribution observed along polar ice cores, with special emphasis on the GISP2 ice core, and discuss the possible climate change scenarios that could engender these changes.
DE: 1605 Abrupt/rapid climate change (4901, 8408)
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 1650 Solar variability (7537)
DE: 3305 Climate change and variability (1616, 1635, 3309, 4215, 4513)
DE: 8408 Volcano/climate interactions (1605, 3309)
SC: Paleoceanography and Paleoclimatology [PP]
MN: Fall Meeting 2005