Factors controlling the interannual variations of MJO intensity
Factors controlling the interannual variations of MJO intensity
复制标题
MJO强度年际变化的控制因素
DOI:
10.1007/s13351-016-5113-3
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发表时间:
2016-03
影响因子:
3.2
通讯作者:
Peng Melinda
中科院分区:
文献类型:
--
作者:
Deng Li;Li Tim;Liu Jia;Peng Melinda
The interannual variations of intensity of the Madden-Julian Oscillation (MJO) during boreal winter are investigated by using the observed outgoing longwave radiation (OLR) and the reanalysis data of ECMWF and NCEP. The standard deviation of 20-80-day filtered OLR anomaly is used to measure the MJO intensity. The dominant spatial structure of the interannual variability is revealed by an EOF analysis of the MJO intensity field. It is found that the leading mode is associated with eastern Pacific type ENSO, whereas the second mode is related to central Pacific type ENSO. A simple atmospheric model is used to investigate the relative roles of background moisture and wind changes in affecting the overall strength of MJO. The numerical experiments indicate that the background moisture effect is dominant while the background wind change has a minor effect.
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DOI:
--
发表时间:
1992
期刊:
--
影响因子:
--
作者:
Raymond M. Zehr
通讯作者:
Raymond M. Zehr
影响因子:
4.9
作者:
Xianan Jiang;Ming Zhao;D. Waliser
通讯作者:
Xianan Jiang;Ming Zhao;D. Waliser
影响因子:
0.8
作者:
Tim Li;Bin Wang
通讯作者:
Tim Li;Bin Wang
影响因子:
2.9
作者:
B. Fu;Tim Li;M. Peng;F. Weng
通讯作者:
B. Fu;Tim Li;M. Peng;F. Weng
影响因子:
4.9
作者:
Bo Wu;Tim Li;Tianjun Zhou
通讯作者:
Bo Wu;Tim Li;Tianjun Zhou