Assimilating SMOS sea ice thickness into a coupled ice-ocean model using a local SEIK filter
Assimilating SMOS sea ice thickness into a coupled ice-ocean model using a local SEIK filter
复制标题
使用局部 SEIK 滤波器将 SMOS 海冰厚度同化到耦合冰海模型中
DOI:
10.1002/2014jc009963
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发表时间:
2014-10
影响因子:
--
通讯作者:
Zhanhai Zhang
中科院分区:
文献类型:
--
作者:
Qinghua Yang;Svetlana N. Losa;Martin Losch;Xiangshan Tian-Kunze;Lars Nerger;Jiping Liu;Lars Kaleschke;Zhanhai Zhang
The impact of assimilating sea ice thickness data derived from ESA's Soil Moisture and Ocean Salinity (SMOS) satellite together with Special Sensor Microwave Imager/Sounder (SSMIS) sea ice concentration data of the National Snow and Ice Data Center (NSIDC) in a coupled sea ice-ocean model is examined. A period of 3 months from 1 November 2011 to 31 January 2012 is selected to assess the forecast skill of the assimilation system. The 24 h forecasts and longer forecasts are based on the Massachusetts Institute of Technology general circulation model (MITgcm), and the assimilation is performed by a localized Singular Evolutive Interpolated Kalman (LSEIK) filter. For comparison, the assimilation is repeated only with the SSMIS sea ice concentrations. By running two different assimilation experiments, and comparing with the unassimilated model, independent satellite-derived data, and in situ observation, it is shown that the SMOS ice thickness assimilation leads to improved thickness forecasts. With SMOS thickness data, the sea ice concentration forecasts also agree better with observations, although this improvement is smaller.
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影响因子:
3.6
作者:
Marshall, J;Adcroft, A;Heisey, C
通讯作者:
Heisey, C
影响因子:
3.2
作者:
T. Yabe;R. Tanaka;T. Nakamura;F. Xiao
通讯作者:
T. Yabe;R. Tanaka;T. Nakamura;F. Xiao
影响因子:
2.2
作者:
J. Nystuen
通讯作者:
J. Nystuen
影响因子:
2.3
作者:
L. Nerger;S. Danilov;W. Hiller;J. Schröter
通讯作者:
L. Nerger;S. Danilov;W. Hiller;J. Schröter
影响因子:
3.6
作者:
Nguyen, An T.;Menemenlis, Dimitris;Kwok, Ronald
通讯作者:
Kwok, Ronald