The First Decade of the New Century: A Cooling Trend for Most of Alaska

摘要: During the first decade of 21st century most Alaska experienced a cooling shift, modifying long-term warming trend, which has been about twice global change up to this time. All cooled with exception Northern Regions. This trend was caused by in sign Pacific Decadal Oscillation (PDO), became dominantly negative, weakening Aleutian Low. results less relatively warm air being advected from Pacific. transport is especially important winter when solar radiation weak. It during period that strongest observed. In addition, pronounced Western Alaska, closest area center The changes seen reanalyzed data were confirmed surface observations, both decrease North-South atmospheric pressure gradient, as well mean wind speeds for stations located Bering Sea area.