HR: 0800h
AN: U41A-0805    [Abstracts]
TI: Recent Changes in Arctic Sea-Ice as a Component of the Arctic Freshwater System
AU: * Moritz, R E
EM: dickm@apl.washington.edu
AF: Polar Science Center/APL University of Washington, 1013 NE 40th Street, Seattle, WA 98105-6698 United States
AB: With a salinity typically one-tenth that of seawater, Arctic sea-ice can be an effective agent for the transport of freshwater within the Arctic, and for export from the Arctic to lower latitude. Large and persistent changes have occurred in the concentration, extent, thickness, motion and age of sea-ice during the era of good satellite observations, approximately 1970-2005. These changes are summarized and interpreted in terms of their relationships to the freshwater cycle of the Arctic, and the export of freshwater to the high latitude North Atlantic Ocean. Quantitative estimates of freshwater content and horizontal flux are updated using observations from the North Pole Environmental Observatory, 2001-2005.
DE: 4540 Ice mechanics and air/sea/ice exchange processes (0700, 0750, 0752, 0754)
SC: Union [U]
MN: Fall Meeting 2005