基于遗传算法的新安江模型参数优化率订（一）
基于遗传算法的新安江模型参数优化率定（一）1参数率定选用的流域1.1流域概况竹溪坡流域慨况及暴雨洪水一般
基于遗传算法的新安江模型参数优化率定（一）
1参数率定选用的流域1.1流域概况
竹溪坡流域慨况及暴雨洪水一般特性：
竹溪坡流域位于湖南资水支流伊溪的上游,集水面积686km2，属山区，河长49km,干流坡降2.42‰。流域内有三个雨量站,即竹溪坡、梅城、黄柏界,流域出口设有竹溪坡水文站,具有较长期的实测雨量、流量资料。流域概况见图1。
该流域属东亚季风副热带暖湿气候,夏季炎热多雨,冬季寒冷干燥。该流域是湖南省著明的暴雨高值区,多年平均年雨量为1400mm～1800mm,多年平均最大24h暴雨为100～130mm,梅城24h暴雨竟达423.1mm(1955年8月26日)。年内降雨量主要集中在4～8月,尤以5、6两月最大。一次洪水历时可达7～8天,洪水过程线形状有明显的季节变化规律,一般7月中旬以前多为峰高量大的复峰,7月中旬以后多为峰高量小的单峰。
竹溪坡流域是常见的暴雨中心区，做好该流域的暴雨洪水预报，对于防治、减轻资水流域下游地区洪水灾害具有重要意义。
1.2流域暴雨洪水场次资料1.2.1 流域水文气象资料的收集与审查
熟悉竹溪坡流域的自然地理情况，广泛收集有关水文气象资料。对资料进行可靠性、一致性、代表性审查。本课程设计的预报方案可不进行此项工作。
1.2.2 竹溪坡流域暴雨洪水场次资料整理
1989年竹溪坡、梅城、黄柏界雨量站的时段雨量数据（设面平均雨量可采用算术平均法计算）以及竹溪坡1989年流量过程由数据文件“infile_3P_Qo.txt”提供。洪水与暴雨场次的大致划分如表1所示。
表1 资水支流竹溪坡站次洪水统计表 径流深单位：mm
NO
洪号
流量起止时间
起止流量
洪峰
峰现时间
雨量起止时间
径流深
1
89412
4.11.02-4.19.02
10 11
4.11.02-4.19.02
2
89419
4.19.02-4.28.02
11 16
4.19.02-4.27.20
3
89428
4.28.02-5.07.14
16 14
4.28.02-5.07.14
4
89507
5.07.14-5.25.20
14 9
5.07.14-5.25.20
5
89628
6.28.08-7.11.20
9 9
6.28.08-7.09.08
1989年雨量流量数据（数据文件“infile_3P_Qo.txt”就是来自此表，记录了三个雨量站和流域流量的数据）
月日(开始)时(终止)时竹溪坡雨量梅城雨量黄柏界雨量竹溪坡流量412800011.64181400011.641142000010.39412020.1009.1842281.70.30.37.96428140006.7542142000.90.97.71422023.22.92.98.68432814.218189.64438142.13.73.710.64314201.50.10.114.3432021.10.10.11844281.51.21.221.7448140.80025.44414202.10023.73442020.70.50.522.05452800020.384581400018.745142000017.354520200.10.11646280.30.30.314.654681400013.346142000012.54620200011.7472800010.94781400010.14714200009.62472020.91.81.89.1448280008.65488140008.174814200008.05482020007.9349280007.82498140007.74914200007.24492020006.77410280006.314108140005.85410142000.60.66.341020226.518.418.46.34112842.518.118.19.64118148.18.58.510641114209.410.610.624241120275.75.7195412286.12.32.317141281416.112.812.8120412142026.613.313.312641220228.523.523.5248.6413284.96.96.95104138140004064131420000242413202000132.494142800.40.489.2841481400069.741414200005541420200.30.340.874152800.90.934.6741581400035.6415142000031.2841520200024.324162800021.4241681400023.7416142000021.9541620200020.2417280.20.10.119.84178140.30.10.119.4417142000018.7541720200014.644182800.10.116.14188140.20017.9418142000016.8541820200013.06419282.70010.9541981427.631.131.115.241914200.41.11.131.7419202000116420280.20078.84208140.27.77.757.442014204.90.60.648.234202021.50.10.142.174212814.54.24.239.684218142726.126.140.8421142023.212.212.2205.754212023.300346.542228000203.842281400.90.9191422142000088.5342220200.20.264.33423280.50.60.652.7342381400047.5423142000.30.341.5442320200035.594242800031.364248140002842414200.30026.1942420201.81.824.744252810.70.723.734258140.10022.8425142000021.3442520200019.894262800019.1242681400018.7426142000.20.218.0142620200.20.217.324272800017.242781400017.2427142000016.854272020.50016.54282824.40.90.915.9242881412.913.313.317.942814200.62225.7942820217.314.814.830.74292831.310.910.933.642981473.63.616942914205.50.70.7206.144292020.8001534302831.71.799.864308145.10.90.9105430142010.810.110.193.5443020233.33.369.2851280.30.10.186.45181400086.4511420000104.18512020.53.63.660522800052.645281400078.452142000043.55220200035.27532800032.225381400030.253142000027.85320200025.4542800024.2548140002354142000022.085420200021.15552800020.225581400019.355142000018.65520200017.9562800017.25681400016.556142000015.695620200014.87572800014.6578140.13.83.814.65714202.72.12.114.13572020.71.51.514.85582812.24.44.416.33588141.75.95.921.558142012.96.46.425.4582020.10034.83592800054.04598140.23.63.643.55914200.60.70.738.435920200034.95102800032.5551081400030.25101420103.53.527.85102029.711.411.425.4511283.366122.675118140.20.10.1110511142000085.695112020.10068.68512287.40053.255128143.30.10.147512142011.63.83.842.825122020.30.10.173.45132800066.5851381400055.8513142000049.4513202000435142800036.651481400030.2514142000028.451420200026.65152800024.85158149.37.87.823515142012.213.313.324.375152020.10038.34516280.30.30.355.851681400047516142000041.4551620200035.95172800032.651781400029.3517142000027.3551720200025.45182800023.4551881400021.5518142000020.0751820200018.635192800017.251981400015.55519142000013.951920200013.75202800013.552081400013.3520142000013.352020200013.3521280.20012.8252181400011.452114201.4001252120210.10.112.6522285.73.33.313.25228144.20.30.313.952214200.10013.5352220200013.655232800013.7852381400013.9523142000013.1552320200012.45242800011.6552481400010.9524142000010.7552420200010.65252800010.4552581400010.352514200009.765252020009.43526280009.15268140008.7752614200.5008.655262020.20.10.18.52527280008.45278140008.27527142000.10.18.45272022.71.51.58.52528288.24.94.98.655288142.61.21.28.7752814200.41.81.89.35282020009.84529280.10010.3752981400010.952914201.62.72.710.95292021.13.43.410.95302800010.953081400010.9530142000010.375302020009.84531280009.35318140008.7753114200008.655312020008.5261280008.4618140008.276114200008.15612020008.0362280007.916281402.82.87.7962142010.29.79.77.79622020.3007.7963281.10.30.37.79638140007.796314200.10.10.18.15632020008.51642810.419.719.78.886481400.10.19.246414200009.956420200010.67652800011.396581400012.165142002.92.911.396520200010.67662800.10.19.95668140009.2466142000.40.48.88662020008.5167280008.15678140007.796714200007.55672020007.3268280007.09688141006.856814200006.97682021.20.80.87.0869280.437.537.57.19698140.2007.316914200.2007.68692020.4008.04610280.2008.4161081405.45.48.7761014200008.656102020008.526112803.13.18.46118140008.2761114200008.276112020008.27612280008.276128140008.2761214200007.926122020007.56613280007.26138140006.8561314200006.626132020006.39614280006.166148140005.9361414206.66.86.86.026142020.20.10.16.11615280006.216158140006.361514208.90.50.57.796152020007.79616280.1007.796168140.1007.7961614209.60.80.88.426162021.90.90.99.05617280.7009.676178140.40010.361714203.30.10.112.2617202117.57.514.16182813.95.35.3166188147.621.721.717.961814203.41.51.542.426182020.10.10.170.23619280.10049.9161981400038619142000.20.233.561920200.10.1296202800024.562081400020620142000018.862020200017.66212800016.46218143.30015.262114202.50014.886212025.71.21.214.55622284.40.30.314.226228143.60.40.413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