%0 Journal Article
%T 渭河流域水文变异识别与初步解析<br>Hydrological Variation Analysis in Wei River Basin
%A 张洪波
%A 顾磊
%J Journal of Water Resources Research
%P 1-8
%@ 2166-5982
%D 2014
%I Hans Publishing
%R 10.12677/JWRR.2014.31001
%X <span style=\"font-family:宋体;font-size:10pt;\"><span>应用滑动秩和检验法与</span></span><span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">Mann-Kendall</span><span style=\"font-family:宋体;font-size:10pt;\">方法对渭河干支流主要的</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">7</span><span style=\"font-family:宋体;font-size:10pt;\">个水文站点的水文序列变异点的位置进行诊断与识别。结合</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">Hilbert-Huang</span><span style=\"font-family:宋体;font-size:10pt;\">变换，对各水文站点数据进行</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">EMD</span><span style=\"font-family:宋体;font-size:10pt;\">多尺度分解，获得不同时间尺度的</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">IMF</span><span style=\"font-family:宋体;font-size:10pt;\">信号和趋势过程，然后采用滑动秩和检验法对各分解信号进行变异识别，确定变异的响应尺度。最后，结合水文变异指标</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">(IHA)</span><span style=\"font-family:宋体;font-size:10pt;\">，以变异点位置为依据，进行阶段划分，识别变异前后水文序列的变异领域，对水文情势变异进行细节解析，找出发生强烈变异的水文指标。</span></span></a><span style=\"font-family:宋体;font-size:10pt;\">结果表明：</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">1) </a></span><span><span style=\"font-family:宋体;font-size:10pt;\">渭河干流水文站点年径流序列的变异点主要发生在</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">1971</span><span style=\"font-family:宋体;font-size:10pt;\">年和</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">1994</span><span style=\"font-family:宋体;font-size:10pt;\">年，</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">1971</span><span style=\"font-family:宋体;font-size:10pt;\">年的水文变异主要由人类活动驱动，而</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">1994</span><span style=\"font-family:宋体;font-size:10pt;\">年的水文变异则由气候变化与人类活动共同影响。</span></span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">2<span>) </span></a></span><span><span><span style=\"font-family:宋体;font-size:10pt;\">水文变异主要影响渭河干支流径流序列的趋势过程，只有华县站</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">6</span><span style=\"font-family:宋体;font-size:10pt;\">年时间尺度变化及状头站</span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">4~6</span><span style=\"font-family:宋体;font-size:10pt;\">年时间尺度变化过程受到水文变异的扰动。</span></span></span><span style=\"font-family:'Times New Roman','serif';font-size:10pt;\">3<span>) </span></a></span><span><span><span
%K 水文特征；变异点；HHT；IHA<br>Hydrologic Characteristics
%K Variation Point
%K HHT
%K IHA
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=13018