Relaxing the Tropics to an ‘observed’ state: analysis using a simple baroclinic model
Relaxing the Tropics to an ‘observed’ state: analysis using a simple baroclinic model
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将热带地区放松到“观察”状态：使用简单的斜压模型进行分析
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
T. Jung
中科院分区：
文献类型：
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作者：
B. Hoskins;R. Fonseca;M. Blackburn;T. Jung
热带大气松弛以便在月-季预报模式中进行分析的技术以前已在许多情况下被成功地利用。结果表明，当用热带松弛来研究2007年6-7月观测异常的可能来源时，一个简单的动力模式能够重现由ECMWF预报集合给出的异常模式的观测分量。根据这一结果，在纬向气流中赤道加热的控制模式的基础上，对松弛时间尺度、变量和松弛区域进行了一系列的实验。
The technique of relaxation of the tropical atmosphere towards an analysis in a month‐season forecast model has previously been successfully exploited in a number of contexts. Here it is shown that when tropical relaxation is used to investigate the possible origin of the observed anomalies in June–July 2007, a simple dynamical model is able to reproduce the observed component of the pattern of anomalies given by an ensemble of ECMWF forecast runs. Following this result, the simple model is used for a range of experiments on time‐scales of relaxation, variables and regions relaxed based on a control model run with equatorial heating in a zonal flow.