Anticyclonic Eddies in the Alaskan Stream
作者： Hiromichi Ueno , Kanako Sato , Howard J. Freeland , William R. Crawford , Hiroji Onishi
关键词: Boundary current 、 Potential vorticity 、 Geology 、 Wind stress 、 Eddy 、 Oceanography 、 Hydrography 、 Ocean gyre 、 Anticyclone 、 Ocean current 、 Climatology
摘要: Abstract Anticyclonic eddies propagating southwestward in the Alaskan Stream (AS) were investigated through analysis of altimetry data from satellite observations during 1992–2006 and hydrographic profiling float 2001–06. Fifteen long-lived identified categorized based on their area first appearance. Three present at beginning observations; another three formed eastern Gulf Alaska off Sitka, Alaska; four detected head near Yakutat, Alaska. The other five along AS between 157° 169°W, named eddies. While that mainly decayed before exiting Alaska, mostly crossed 180° meridian reached western subarctic gyre. Four under negative or weakly positive wind stress curls, which possibly caused separation coast. Comparison eddy propag...
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