遼寧省氣候變化與厄爾尼諾相關(guān)性分析
發(fā)布時間:2019-07-29 11:50
【摘要】:為了探討近50年來遼寧省氣候變化特征及其與厄爾尼諾的關(guān)系,文章根據(jù)1965—2013年遼寧省23個氣象站點的降水、年均氣溫數(shù)據(jù)與表征厄爾尼諾南方濤動(ENSO)事件的熱帶太平洋海表溫度距平和南方濤動指數(shù)資料,利用氣候傾向率、M-K突變檢驗以及反距離權(quán)重插值等方法進行分析研究,結(jié)果表明:1965—2013年遼寧省降水量由東南向西北逐漸減少,在多個時間段內(nèi)發(fā)生突變現(xiàn)象;氣溫有顯著的上升趨勢,并在空間上呈現(xiàn)由東北向西南逐漸增加的趨勢;降水變化與ENSO事件強度存在著一定的負相關(guān)性,而氣溫變化與ENSO事件強度沒有顯著的相關(guān)性。
[Abstract]:In order to explore the characteristics of climate change and its relationship with El Nino in Liaoning Province in recent 50 years, based on the precipitation of 23 meteorological stations in Liaoning Province from 1965 to 2013, the annual temperature data and the tropical Pacific sea surface temperature anomaly and Southern Oscillation index data, which characterize the (ENSO) event of El Ni 帽 o Southern Oscillation, are analyzed and studied by means of climate tendency rate, M 鈮,
本文編號:2520485
[Abstract]:In order to explore the characteristics of climate change and its relationship with El Nino in Liaoning Province in recent 50 years, based on the precipitation of 23 meteorological stations in Liaoning Province from 1965 to 2013, the annual temperature data and the tropical Pacific sea surface temperature anomaly and Southern Oscillation index data, which characterize the (ENSO) event of El Ni 帽 o Southern Oscillation, are analyzed and studied by means of climate tendency rate, M 鈮,
本文編號:2520485
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