Observations of the summer breakup of an Arctic sea ice cover

Autor:	Arnold Song, A. E. Arntsen, Donald K. Perovich, Jacqueline A. Richter-Menge
Rok vydání:	2015
Předmět:	Drift ice geography geography.geographical_feature_category Antarctic sea ice Arctic ice pack Geophysics Fast ice Climatology Sea ice thickness Sea ice Melt pond General Earth and Planetary Sciences Cryosphere Geology
Zdroj:	Geophysical Research Letters. 42:8057-8063
ISSN:	1944-8007 0094-8276
Popis:	The Arctic sea ice cover evolves dramatically through the summer melt season. Floe size distribution (FSD) is a critical parameter used to examine this change as the ice cover transitions from large rectilinear plates in spring to an ensemble of discrete rounded floes by midsummer. The FSD at a given time impacts the dynamic and thermodynamic behavior of the ice cover. Focusing on the seasonal marginal ice zone in the Beaufort and Chukchi Seas from May to September 2014, we present qualitative and quantitative results derived from National Technical Means high-resolution imagery and supported by ice mass balance buoy data. Results indicate that as melt accelerates, floe breaking pattern, and therefore FSD, is heavily influenced by the distribution of melt ponds. Discrete element model results using morphological conditions derived from analyzed satellite imagery confirmed that breaking occurs along ponds and perpendicular to applied stress.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::61e7054950221c588e665e5360c588d2 https://doi.org/10.1002/2015gl065224 Zobrazit plný text záznamu Plný text