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河西走廊黑河流量的气候特征及其预报
Climatic Characteristics and Forecast of the Flow of Heihe River in the Hexi Corridor Area
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摘要: 本文利用黑河流量资料，分析了径流本身的持续性、周期性及年际变化。统计表明，4月径流与前期2月青藏高原地面加热场强度存在较好的正相关。前期500 hPa高度距平特征可预示未来5月黑河流量。Abstract: Using the data set of the flow of Heihe river, we have analyzed the persistence, periodicity and annual variation of the flow. It is shown that there is a good positive correlation between the flow of Heihe river in April and surface heating field over the Qinghai-Xizang Plateau in February of the year. The departure characteristics of 500 hPa in March have the predictability to the flow of Heihe river for coming May.
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