Recent Arctic Sea Ice Variability: Connections to the Arctic Oscillation and the ENSO
Recent Arctic Sea Ice Variability: Connections to the Arctic Oscillation and the ENSO
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DOI：
10.1029/2004gl019858
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发表时间：
2004-05-13
影响因子：
5.2
通讯作者：
Hu, YY
中科院分区：
文献类型：
--
作者：
Liu, JP;Curry, JA;Hu, YY
卫星推算的北极海冰密集度趋势（1978-2002年）显示，在巴伦支海/喀拉海、楚科奇海和博福特海之间、鄂霍次克海中部和哈德逊/巴芬湾部分地区，海冰密集度每十年明显减少2 -8%，超过95%的置信水平。北极涛动（AO）和厄尔尼诺-南方涛动（ENSO）的正位相在北极西部产生相似的冰变化，而在北极东部产生相反的冰变化。冰的变化与AO和ENSO的方式进行了论证。在过去的24年里，与正AO趋势和负ENSO趋势相关的冰变化幅度远远小于区域冰趋势。因此，更多的本地或不太了解大规模的过程应该进行调查的解释。
Trends in the satellite-derived Arctic sea ice concentrations (1978-2002) show pronounced decreases in the Barents/Kara Seas, between the Chukchi and Beaufort Seas, the central Sea of Okhotsk and a portion of the Hudson/Baffin Bay by similar to2-8% per decade, exceeding the 95% confidence level. Qualitatively speaking, positive phases of the Arctic Oscillation (AO) and El Nino-Southern Oscillation (ENSO) produce similar ice changes in the western Arctic, but opposite ice changes in the eastern Arctic. The manner in which the ice changes are related to the AO and ENSO are demonstrated. Over the last 24 years, the magnitude of the ice changes associated with the positive AO trend and the negative ENSO trend is much smaller than the regional ice trends. Thus, more local or less understood large scale processes should be investigated for explanations.