北极中央区海冰密集度与云量相关性分析

纪旭鹏; 赵进平

doi:10.3969/j.issn.0253-4193.2015.11.009

北极中央区海冰密集度与云量相关性分析

doi: 10.3969/j.issn.0253-4193.2015.11.009

中国海洋大学物理海洋教育部重点实验室, 山东青岛 266100

基金项目: 国家重大科学研究计划项目(2015CB953903);国家自然科学委员会重点基金项目(41330960)。

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出版历程
- 收稿日期: 2015-04-16

Analysis of correlation between sea ice concentration and cloudiness in the central Arctic

Key Laboratory of Physical Oceanography, Ministry of Education, Ocean University of China, Qingdao 266100, China

摘要

摘要: 本文使用海冰密集度以及低云、中云、高云的日平均数据,借助滑动相关分析方法,研究了北极中央区海冰密集度与云量之间的相关性,分析了海冰与云的相互作用机制。研究表明,在春季海冰融化季节(4、5月)、秋季海冰冻结季节(10、11月),低云与海冰密集度之间表现为较好的负相关,表明在这段时间内冰区海面蒸发强烈,对低云的形成有重要贡献。在10月和11月,中云与海冰密集度也有很好的负相关,表明秋季低云可以通过抬升形成中云。高云与海冰密集度之间并没有明显的相关性,可能原因:一方面海冰的空间分布对高云无影响,另一方面,高云主要影响到达的短波辐射,从而影响海冰的融化和冻结速度,与海冰厚度有直接显著的关系,而与海冰密集度的关系不明显。此外,在海冰密集度与低云存在较好负相关的情况下会出现某些年份相关性不好的情况,我们的研究发现这是北极中央区与周边海区发生了海冰交换或云交换的结果。
- 北极中央区 /
- 海冰密集度 /
- 云量 /
- 滑动相关
Abstract: Correlation between sea ice concentration and cloudiness in the central Arctic is studied. The running correlation coefficients of daily sea ice concentration averaged for whole central Arctic with the daily averaged low cloud, medium cloud and high cloud are calculated. During the melting period in spring (April and May) and the freezing period in autumn (October and November), sea ice concentration and low cloud present significant negative correlation. This could be explained that the low clouds were formed by strong evaporation from the open water in gaps of sea ice during these periods. In the same period, sea ice concentration is negatively correlated with medium cloud only during the freezing period in autumn, which suggests that in autumn the low cloud could upwell to form medium cloud, but in spring the upwell is much week because of its stable stratification. There is no a significant correlation between sea ice concentration and high cloud, which is speculated that sea ice can't influence the high cloud and the high cloud is not formed by local eveporation and the influence of high cloud on sea ice is not ice concentration, but is ice thickness. In the periods of significant correlation between ice concentration and low cloud, there still exist some occasional inconsistent betweeen them. The exchanges of sea ice or cloud between the central Arctic and adjacent regions is suggested to cause the inconsistent.
- central Arctic Ocean /
- sea ice concentration /
- cloudiness /
- running correlation

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参考文献(26)

Morison J H, McPhee M G, Curtin T B, et al. The oceanography of winter leads[J]. Journal of Geophysical Research: Oceans (1978-2012), 1992, 97(C7): 11199-11218.

Alam A, Curry J. Lead-induced atmospheric circulations[J]. Journal of Geophysical Research: Oceans (1978-2012), 1995, 100(C3): 4643-4651.

张树刚. 夏季北冰洋海冰融化过程中能量分配的研究[D]. 青岛: 中国海洋大学, 2009. Zhang Shugang. Study on the distribution of solar energy in marginal ice zone during ice melting season[D]. Qingdao: Ocean University of China, 2009.

Comiso J C, Parkinson C L, Gersten R, et al. Accelerated decline in the Arctic sea ice cover[J]. Geophysical Research Letters, 2008, 35(1): L01703.

Zhang J, Lindsay R, Schweiger A, et al. The impact of an intense summer cyclone on 2012 Arctic sea ice retreat[J]. Geophysical Research Letters, 2013, 40(4): 720-726.

Gorodetskaya I V, Tremblay L. Arctic cloud properties and radiative forcing from observations and their role in sea ice decline predicted by the NCAR CCSM3 model during the 21st century[J]. Arctic Sea Ice Decline: Observations, Projections, Mechanisms, and Implications, 2008, 180: 47-62.

赵进平, 李涛, 张树刚, 等. 北冰洋中央密集冰区海冰对太阳短波辐射能吸收的观测研究[J]. 地球科学进展, 2009, 24(1): 33-41. Zhao Jinping, Li Tao, Zhang Shugang, et al. The shortwave solar radiation energy absorbed by packed sea ice in the central Arctic[J]. Advances in Earth Science, 2009, 24(1): 33-41.

Schweiger A J, Lindsay R W, Vavrus S, et al. Relationships between Arctic sea ice and clouds during autumn[J]. Journal of Climate, 2008, 21(18): 4799-4810.

Liu Y, Key J R, Liu Z, et al. A cloudier Arctic expected with diminishing sea ice[J]. Geophysical Research Letters, 2012, 39(5): L05705.

Schweiger A J. Changes in seasonal cloud cover over the Arctic seas from satellite and surface observations[J]. Geophysical Research Letters, 2004, 31(12): L12207.

Francis J A, Hunter E. New insight into the disappearing Arctic sea ice[J]. Eos, Transactions American Geophysical Union, 2006, 87(46): 509-511.

Herman G, Goody R. Formation and persistence of summertime Arctic stratus clouds[J]. Journal of the Atmospheric Sciences, 1976, 33(8): 1537-1553.

Kay J E, Gettelman A. Cloud influence on and response to seasonal Arctic sea ice loss[J]. Journal of Geophysical Research: Atmospheres (1984-2012), 2009, 114(D18):D18204.

Kay J E, L'Ecuyer T, Gettelman A, et al. The contribution of cloud and radiation anomalies to the 2007 Arctic sea ice extent minimum[J]. Geophysical Research Letters, 2008, 35(8): L08503.

Paluch I R, Lenschow D H, Wang Q. Arctic boundary layer in the fall season over open and frozen sea[J]. Journal of Geophysical Research: Atmospheres (1984-2012), 1997, 102(D22): 25955-25971.

Eastman R. Interannual variations of Arctic cloud types in relation to sea ice[D]. Seattle: University of Washington, 2009.

Beesley J A. Estimating the effect of clouds on the arctic surface energy budget[J]. Journal of Geophysical Research: Atmospheres (1984-2012), 2000, 105(D8): 10103-10117.

Vavrus S, Holland M M, Bailey D A. Changes in Arctic clouds during intervals of rapid sea ice loss[J]. Climate Dynamics, 2011, 36(7/8): 1475-1489.

Koenigk T, Brodeau L, Graversen R G, et al. Arctic climate change in 21st century CMIP5 simulations with EC-Earth[J]. Climate dynamics, 2013, 40(11/12): 2719-2743.

Zhao J, Cao Y, Shi J. Core region of Arctic Oscillation and the main atmospheric events impact on the Arctic[J]. Geophysical research letters, 2006, 33(22): L22708.

Perovich D K, Light B, Eicken H, et al. Increasing solar heating of the Arctic Ocean and adjacent seas, 1979-2005: Attribution and role in the ice-albedo feedback[J]. Geophysical Research Letters, 2007, 34(19):L19505.

Wu D L, Lee J N. Arctic low cloud changes as observed by MISR and CALIOP: Implication for the enhanced autumnal warming and sea ice loss[J]. Journal of Geophysical Research: Atmospheres (1984-2012), 2012, 117(D7):D07107.

Serreze M C, Barrett A P, Stroeve J C, et al. The emergence of surface-based Arctic amplification[J]. The Cryosphere, 2009, 3(1): 11-19.

Pavelsky T M, Boé J, Hall A, et al. Atmospheric inversion strength over polar oceans in winter regulated by sea ice[J]. Climate Dynamics, 2011, 36(5/6): 945-955.

程刚, 高志球, 郑友飞, 等.北极低空急流和低层逆温特征观测分析[J].气候与环境研究, 2013, 18(1): 23-31. Cheng Gang, Gao Zhiqiu, Zheng Youfei, et al. A study on low-level jets and temperature inversion over the Arctic ocean by using SHEBA data[J]. Climatic and Environmental Research, 2013, 18(1): 23-31.

Tjernström M, Graversen R G. The vertical structure of the lower Arctic troposphere analysed from observations and the ERA-40 reanalysis[J]. Quarterly Journal of the Royal Meteorological Society, 2009, 135(639): 431-443.

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