HR: 0800h
AN: C21A-0960    [Abstracts]
TI: National Oceanic and Atmospheric Administration(NOAA) Arctic Climate Change Studies: A Contribution to IPY
AU: Calder, J
EM: John.Calder@noaa.gov
AF: NOAA Arctic Research Office, 1315 East West Highway, Silver Spring, MD 20910 United States
AU: * Overland, J
EM: James.E.Overland@noaa.gov
AF: NOAA/Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115 United States
AU: Uttal, T
EM: Taneil.Uttal@noaa.gov
AF: NOAA/Environmental Technology Laboratory, 325 Broadway, Boulder, CO 80305 United States
AU: Richter-Menge, J
EM: Jacqueline.A.Richter-Menge@erdc.usace.army.mil
AF: COE/Cold Regions Research and Engineering Laboratory, 72 Lyme Road, Hanover, NH 03755 United States
AU: Rigor, I
EM: ignatius@apl.washington.edu
AF: Polar Science Center/University of Washington, 1013 NE 40th, Seattle, WA 98105 United States
AU: Crane, K
EM: Kathy.Crane@noaa.gov
AF: NOAA Arctic Research Office, 1315 East West Highway, Silver Spring, MD 20910 United States
AB: NOAA has initiated four activities that respond to the Arctic Climate Impact Assessment(ACIA) recommendations and represent contributions toward the IPY: 1) Arctic cloud, radiation and aerosol observatories, 2) documentation and attribution of changes in sea-ice thickness through direct measurement and modeling, 3) deriving added value from existing multivariate and historical data, and 4) following physical and biological changes in the northern Bering and Chukchi Seas. Northeast Canada, the central Arctic coast of Russia and the continuing site at Barrow have been chosen as desirable radiation/cloud locations as they exhibit different responses to Arctic Oscillation variability. NOAA is closely collaborating with Canadian groups to establish an observatory at Eureka. NOAA has begun deployment of a network of ice-tethered ice mass balance buoys complemented by several ice profiling sonars. In combination with other sea ice investigators, the Arctic buoy program, and satellites, changes can be monitored more effectively in sea ice throughout the Arctic. Retrospective data analyses includes analysis of Arctic clouds and radiation from surface and satellite measurements, correction of systematic errors in TOVS radiance data sets for the Arctic which began in 1979, addressing the feasibility of an Arctic System Reanalysis, and an Arctic Change Detection project that incorporates historical and recent physical and biological observations and news items at a website, www.arctic.noaa.gov. NOAA has begun a long-term effort to detect change in ecosystem indicators in the northern Bering and Chukchi Seas that could provide a model for other northern marine ecosystems. The first efforts were undertaken in summer 2004 during a joint Russian-US cruise that mapped the regions physical, chemical and biological parameters to set the stage for future operations over the longer term. A line of biophysical moorings provide detection of the expected warming of this area. A retrospective analysis is also underway. NOAA is open to partnerships as the IPY develops.
UR: http://www.arctic.noaa.gov
DE: 9315 Arctic region
DE: 4207 Arctic and Antarctic oceanography
DE: 4540 Ice mechanics and air/sea/ice exchange processes
DE: 1610 Atmosphere (0315, 0325)
DE: 1635 Oceans (4203)
SC: Cryosphere [C]
MN: 2004 AGU Fall Meeting