Role of tides in Arctic ocean/ice climate
MetadataShow full item record
A three-dimensional coupled ocean/ice model, intended for long-term Arctic climate studies, is extended to include tidal effects. From saved output of an Arctic tides model, we introduce parameterizations for (1) enhanced ocean mixing associated with tides and (2) the role of tides fracturing and mobilizing sea ice. Results show tides enhancing loss of heat from Atlantic waters. The impact of tides on sea ice is more subtle as thinning due to enhanced ocean heat flux competes with net ice growth during rapid openings and closings of tidal leads. Present model results are compared with an ensemble of nine models under the Arctic Ocean Model Intercomparison Project (AOMIP). Among results from AOMIP is a tendency for models to accumulate excessive Arctic Ocean heat throughout the intercomparison period 1950 to 2000 which is contrary to observations. Tidally induced ventilation of ocean heat reduces this discrepancy.
Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 112 (2007): C04S06, doi:10.1029/2006JC003643.
Suggested CitationJournal of Geophysical Research 112 (2007): C04S06
Showing items related by title, author, creator and subject.
Hobbie, John E.; Shaver, Gaius R.; Rastetter, Edward B.; Cherry, Jessica E.; Goetz, Scott J.; Guay, Kevin C.; Gould, William A.; Kling, George W. (Springer, 2017-01-23)Long-term measurements of ecological effects of warming are often not statistically significant because of annual variability or signal noise. These are reduced in indicators that filter or reduce the noise around the ...
Contrasting sensitivity to extreme winter warming events of dominant sub-Arctic heathland bryophyte and lichen species Bjerke, Jarle W.; Bokhorst, Stef; Zielke, Matthias; Callaghan, Terry V.; Bowles, Francis W.; Phoenix, Gareth K. (2010-12)Climate change in northern high latitudes is predicted to be greater in winter rather than summer, yet little is known about the effects of winter climate change on northern ecosystems. Among the unknowns are the effects ...
Variation in Serripes groenlandicus (Bivalvia) growth in a Norwegian high-Arctic fjord : evidence for local- and large-scale climatic forcing Ambrose, William G.; Carroll, Michael L.; Greenacre, Michael; Thorrold, Simon R.; McMahon, Kelton W. (2006-03-03)We examined the growth rate of the circumpolar Greenland Cockle (Serripes groenlandicus) over a period of 20 years (1983-2002) from Rijpfjord, a high-Arctic fjord in northeast Svalbard (80º10´N, 22°15´E). This period ...