近50年來淮河蚌埠以上流域降水時空變化特征分析
發(fā)布時間：2018-11-26 18:45
【摘要】：利用1956-2010年淮河蚌埠以上流域內112個雨量站的逐日降水資料,采用Mann-Kendall趨勢分析和小波分析方法分析了蚌埠以上流域三級水資源分區(qū)近50 a降水的時空分布特征。結果表明:(1)蚌埠以上多年平均降雨存在北部低,南部高的空間分布不均勻性,4個分區(qū)中除王蚌區(qū)間南岸降雨有遞增趨勢外其他均為遞減趨勢,整個蚌埠以上降雨有遞增趨勢。(2)從時間上看,MK檢驗顯示王家壩以上北岸降雨有顯著遞減趨勢,王蚌區(qū)間南岸降雨有較顯著遞增趨勢,Mann-Kendall趨勢檢驗UF曲線顯示王蚌區(qū)間南岸變化趨勢在整個研究時間段不顯著,2003年突變降雨對統(tǒng)計結果影響較大。(3)蚌埠以上研究區(qū)域及分區(qū)降雨有不同的周期,但有共同的6 a左右的振蕩周期。整個研究區(qū)域降雨變化特征受分區(qū)影響。
[Abstract]:Based on the daily precipitation data of 112 rainfall stations in Bengbu basin of Huaihe River from 1956 to 2010, the temporal and spatial distribution characteristics of precipitation in the area of water resources in Bengbu basin were analyzed by using Mann-Kendall trend analysis and wavelet analysis method. The results are as follows: (1) the annual average rainfall in Bengbu is low in the north and high in the south, and the rainfall in the south of the four subzones is decreasing except for the south bank of the clam. The rainfall over Bengbu has an increasing trend. (2) from the point of view of time, MK test shows that the rainfall of the north bank above Wangjiaba has a significant decreasing trend, and that of the southern bank of the mussel section has a significant increasing trend. Mann-Kendall trend test UF curve showed that the variation trend of southern bank of mussel was not significant in the whole study period, and the sudden rainfall in 2003 had a great influence on the statistical results. (3) there were different periods of rainfall in the study area and subzone of Bengbu. But there is a common oscillation period of about 6 years. The characteristics of rainfall variation in the whole study area are affected by the area.
【作者單位】： 武漢大學水資源與水電工程科學國家重點實驗室;水資源安全保障湖北省協同創(chuàng)新中心;
【基金】：國家“十二五”水專項淮河課題(2014ZX07204-006) 中小河流及無測站流域徑流形成非線性機理及其模型的應用基礎研究(41571028)
【分類號】：TV125
本文編號：2359321
[Abstract]:Based on the daily precipitation data of 112 rainfall stations in Bengbu basin of Huaihe River from 1956 to 2010, the temporal and spatial distribution characteristics of precipitation in the area of water resources in Bengbu basin were analyzed by using Mann-Kendall trend analysis and wavelet analysis method. The results are as follows: (1) the annual average rainfall in Bengbu is low in the north and high in the south, and the rainfall in the south of the four subzones is decreasing except for the south bank of the clam. The rainfall over Bengbu has an increasing trend. (2) from the point of view of time, MK test shows that the rainfall of the north bank above Wangjiaba has a significant decreasing trend, and that of the southern bank of the mussel section has a significant increasing trend. Mann-Kendall trend test UF curve showed that the variation trend of southern bank of mussel was not significant in the whole study period, and the sudden rainfall in 2003 had a great influence on the statistical results. (3) there were different periods of rainfall in the study area and subzone of Bengbu. But there is a common oscillation period of about 6 years. The characteristics of rainfall variation in the whole study area are affected by the area.
【作者單位】： 武漢大學水資源與水電工程科學國家重點實驗室;水資源安全保障湖北省協同創(chuàng)新中心;
【基金】：國家“十二五”水專項淮河課題(2014ZX07204-006) 中小河流及無測站流域徑流形成非線性機理及其模型的應用基礎研究(41571028)
【分類號】：TV125
【相似文獻】
相關期刊論文 前4條
1 王志良,邱林,梁川,付強;基于模糊聚類分析的水資源分區(qū)研究[J];華北水利水電學院學報;2001年02期
2 武桂梅;以地下水供水為主的城市水資源分區(qū)目標管理的探討[J];地下水;1996年01期
3 蔣秀華;孫海洋;劉東;劉合永;;西北諸河區(qū)各水資源分區(qū)地下水資源量及其分布特征[J];地下水;2005年06期
4 ;[J];;年期
相關碩士學位論文 前1條
1 王洪斌;葫蘆島市水資源分區(qū)評價研究[D];河海大學;2006年
，本文編號：2359321
本文鏈接：http://sikaile.net/kejilunwen/shuiwenshuili/2359321.html
