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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Prediction of the Indian summer monsoon rainfall for 2013 based on past rainfall data
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Prediction of the Indian summer monsoon rainfall for 2013 based on past rainfall data

机译:根据过去的降雨数据预测2013年印度夏季风

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摘要

As in previous years, the India Meteorological Department (IMD) has issued a press release1 that the June-September monsoon rainfall for the country as a whole, i.e. the all-India rainfall (AIRF) is expected to be about 98% of the long-term average (LTA) of 89 cm, with a model error of ±5%. A week before this announcement a private agency issued a forecast2 that AIRF will be 103% of LTA with an error margin of 4%. AIRF includes the whole of India made up of four sub-regions: Central India (CEIND), North East India (NEIND), North West India (NWIND) and South Peninsular India (PEIND). AIRF is naturally statistically correlated with some of the regional values, but the regions among themselves are not all well correlated. Table 1 shows the basic statistics and Table 2 shows the correlation among the five data series of IMD. It is seen that characterization of AIRF is not a good reflection of what to expect in NEIND and PEIND.
机译:与往年一样,印度气象局(IMD)发布了新闻稿1,该国整个6月至9月的季风降雨,即全印度的降雨(AIRF)预计约为长期降雨的98%长期平均值(LTA)为89厘米,模型误差为±5%。在此公告发布一周之前,一家私营机构发布了一项预测2,即AIRF将占LTA的103%,误差幅度为4%。 AIRF包括由四个子区域组成的整个印度:中部印度(CEIND),东北印度(NEIND),西北印度(NWIND)和印度南部半岛(PEIND)。 AIRF与某些区域值具有自然的统计相关性,但是它们之间的区域并非都具有良好的相关性。表1显示了基本统计数据,表2显示了IMD的五个数据系列之间的相关性。可以看出,AIRF的表征不能很好地反映NEIND和PEIND中的预期。

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