Observations on Shorefast Ice Dynamics in Arctic Alaska and the Responses of the Iñupiat Hunting Community

Although shorefast sea ice forms a platform that facilitates travel, camping, and hunting by Inupiat subsistence hunters and fishers in the western Arctic, the nearshore sea-ice zone remains an unforgiving and dynamic environment. Traditional hunters constantly hone site-specific experiences and skills with which to optimize the reward-to-risk ratio inherent in operating from this coastal ice. Nearshore ice conditions nevertheless can change suddenly, endangering even the most experienced subsistence hunters. This study examines two (of several) 20th-century events, 40 years apart, in which shorefast ice failed, threatening Inupiat whale hunters with loss of confidence, livelihood, and life. These events differed in character. In one event, the shorefast ice was "crushed" by moving ice floes. In the other, the shorefast ice broke free of land. Our examination focuses on the relationship of subsistence hunters to the ice, the environmental causes of ice failures, the evolving technology for predicting ice behavior, and the longer-term implications of global change for this system. The complexity of geophysical processes underlying coastal ice behavior makes ice failures unpredictable. Thus, hunters must assume and manage risk. The variable and uncertain environment to which whale hunters are accustomed has produced an inherent flexibility that has helped them adapt to new conditions and will continue to do so in the future.

[1]  P. Winsor,et al.  Distribution and interannual variability of dense water production from coastal polynyas on the Chukchi Shelf , 2002 .

[2]  Anthony J. Gow,et al.  Preferred crystal orientations in the fast ice along the margins of the Arctic Ocean , 1978 .

[3]  W. Oechel,et al.  Observational Evidence of Recent Change in the Northern High-Latitude Environment , 2000 .

[4]  Richard K. Nelson ALASKAN ESKIMO EXPLOITATION OF THE SEA ICE ENVIRONMENT , 1966 .

[5]  I. Dmitrenko,et al.  Oceanographic Causes for Transarctic Ice Transport of River Discharge , 1999 .

[6]  Nobuhiro Kishigami The Whales, They Give Themselves: Conversations with Harry Brower, Sr.Karen Brewster , 2006 .

[7]  Ice dynamics , 1978, Nature.

[8]  H. Huntington,et al.  The Barrow Symposium on Sea Ice, 2000: Evaluation of One Means of Exchanging Information between Subsistence Whalers and Scientists , 2001 .

[9]  R. Barry,et al.  The fast ice regimes of the Beaufort and Chukchi Sea coasts, Alaska , 1979 .

[10]  Dirk Nürnberg,et al.  Contrasts in Arctic shelf sea-ice regimes and some implications: Beaufort Sea versus Laptev Sea , 1994 .

[11]  V. Squire The breakup of shore fast sea ice , 1993 .

[12]  M. A. Bilello Maximum thickness and subsequent decay of lake, river and fast sea ice in Canada and Alaska , 1980 .

[13]  P. Barnes,et al.  Arctic continental shelf morphology related to sea-ice zonation, Beaufort Sea, Alaska , 1978 .

[14]  David W. Norton,et al.  Drift Velocities of Ice Floes in Alaska's Northern Chukchi Sea Flaw Zone : Determinants of Success by Spring Subsistence Whalers in 2000 and 2001 , 2004 .

[15]  M. Fernández-Giménez,et al.  Observations on the Workshop as a Means of Improving Communication Between Holders of Traditional and Scientific Knowledge , 2002, Environmental management.

[16]  Austin Kovacs,et al.  SHORE ICE PILE-UP AND RIDE-UP: FIELD OBSERVATIONS, MODELS, THEORETICAL ANALYSES , 1980 .

[17]  Walter B. Tucker,et al.  Evidence for rapid thinning of sea ice in the western Arctic Ocean at the end of the 1980s , 2001 .

[18]  T. Grenfell,et al.  Ice motion and driving forces during a spring ice shove on the Alaskan Chukchi coast , 2004 .

[19]  R. Macdonald Arctic Estuaries and Ice: A Positive—Negative Estuarine Couple , 2000 .

[20]  G. Dieckmann,et al.  From the microscopic to the macroscopic to the regional scale : Growth , microstructure and properties of sea ice 1 , 2003 .

[21]  Richard K. Nelson Hunters of the Northern Ice , 1970 .

[22]  T. L. Kozo,et al.  Mesoscale Nowcasting of Sea Ice Movement through the Bering Strait with a Description of Major Driving Forces , 1987 .

[23]  Ron Kwok,et al.  Relating arctic pack ice stress and deformation under winter conditions , 2002 .

[24]  P. W. Vachon,et al.  Demonstration of ERS Tandem Mission SAR Interferometry for Mapping Land Fast Ice Evolution , 1998 .

[25]  P. Henry Native observations capture impacts of sea ice changes , 2000 .

[26]  Miriam Anne McDonald,et al.  Voices from the bay : traditional ecological knowledge of Inuit and Cree in the Hudson Bay bioregion , 1997 .