HR: 0800h
AN: GC51A-1052    [Abstracts]
TI: Evidence and Implications of Recent Climate Change in Northern Alaska and Other Arctic Regions
AU: * Hinzman, L D
EM: ffldh@uaf.edu
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Bettez, N
AF: Marine Biological Laboratory, _, Woods Hole, MA 02543
AU: Bolton, W R
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Chapin, F S
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Dyurgerov, M B
AF: University of Colorado, _, Boulder, 80309
AU: Fastie, C L
AF: Middlebury College, _, Middlebury, VT 05753
AU: Griffith, B
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Hollister, R D
AF: Michigan State University, _, East Lansing, VT 48824
AU: Hope, A
AF: San Diego State University, _, San Diego, CA 92182
AU: Huntington, H P
AF: Huntington Consulting, _, Eagle River, AK 99577
AU: Jensen, A M
AF: Ukpeagvik I¤upiat Corporation, _, Barrow, AK 99723
AU: Jia, G J
AF: Colorado State University, _, Fort Collins, CO 80523
AU: Jorgenson, T
AF: Alaska Biological Research, _, Fairbanks, AK 99709
AU: Kane, D L
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Klein, D R
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Kofinas, G
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Lynch, A H
AF: Monash University, _, Victoria, 3800 Australia
AU: Lloyd, A H
AF: Middlebury College, _, Middlebury, VT 05753
AU: McGuire, A D
AF: US Geological Survey, _, Fairbanks, AK 99775
AU: Nelson, F E
AF: University of Delaware, _, Newark, DE 19716
AU: Nolan, M
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Oechel, W C
AF: San Diego State University, _, San Diego, CA 92182
AU: Osterkamp, T E
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Racine, C H
AF: Cold Regions Research and Engineering Laboratory, _, Fairbanks, AK 99703
AU: Romanovsky, V E
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Stone, R S
AF: National Oceanic and Atmospheric Administration, _, Boulder, CO 80309
AU: Stow, D A
AF: San Diego State University, _, San Diego, CA 92182
AU: Sturm, M
AF: Cold Regions Research and Engineering Laboratory, _, Fairbanks, AK 99703
AU: Tweedie, C E
AF: Michigan State University, _, East Lansing, VT 48824
AU: Vourlitis, G L
AF: National Oceanic and Atmospheric Administration, _, Boulder, CO 80309
AU: Walker, M D
AF: US Forest Service, _, Fairbanks, AK 99775
AU: Walker, D A
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Webber, P J
AF: Michigan State University, _, East Lansing, VT 48824
AU: Welker, J
AF: University of Alaska Anchorage, _, Anchorage, AK 99508
AU: Winker, K S
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AU: Yoshikawa, K
AF: University of Alaska Fairbanks, _, Fairbanks, AK 99775
AB: The Arctic climate is changing. Permafrost is warming, hydrological processes are changing and biological and social systems are also evolving in response to these changing conditions. Knowing how the structure and function of arctic terrestrial ecosystems are responding to recent and persistent climate change is paramount to understanding the future state of the Earth system and how humans will need to adapt. Our holistic review presents a broad array of evidence that illustrates convincingly; the Arctic is undergoing a system-wide response to an altered climatic state. New extreme and seasonal surface climatic conditions are being experienced, a range of biophysical states and processes influenced by the threshold and phase change of freezing point are being altered, hydrological and biogeochemical cycles are shifting, and more regularly human sub-systems are being affected. Importantly, the patterns, magnitude and mechanisms of change have sometimes been unpredictable or difficult to isolate due to compounding factors. In almost every discipline represented, we show how the biocomplexity of the Arctic system has highlighted and challenged a paucity of integrated scientific knowledge, the lack of sustained observational and experimental time series, and the technical and logistic constraints of researching the Arctic environment. This study supports ongoing efforts to strengthen the interdisciplinarity of arctic system science and improve the coupling of large scale experimental manipulation with sustained time series observations by incorporating and integrating novel technologies, remote sensing and modeling.
DE: 9315 Arctic region
DE: 1600 GLOBAL CHANGE (New category)
SC: Global Climate Change [GC]
MN: 2004 AGU Fall Meeting