王涛,郭新蕾,陈玉壮,刘吉峰,佘云童,潘佳佳.少资料条件河渠冬季冰情过程模拟研究[J].中国水利水电科学研究院学报,2021,19(1):138-147
少资料条件河渠冬季冰情过程模拟研究
Numerical modeling of winter ice process in natural rivers with limited data
投稿时间:2020-07-21  
DOI:10.13244/j.cnki.jiwhr.20200137
中文关键词:  少资料  河渠  冰情  模拟  气温  太阳辐射
英文关键词:limited data  natural rivers  ice situations  numerical modeling  air temperature  solar radiation
基金项目:国家重点研发计划课题(2018YFC1508403);国家自然科学基金(51979291,52009144);中国水科院科研专项(HY0145B642017)
作者单位E-mail
王涛 中国水利水电科学研究院 流域水循环与调控国家重点实验室 北京 100038  
郭新蕾 中国水利水电科学研究院 流域水循环与调控国家重点实验室 北京 100038 guoxinlei@iwhr.com 
陈玉壮 阿尔伯塔大学, 阿尔伯塔省 加拿大  
刘吉峰 黄河水利委员会水文局, 河南 郑州 450004  
佘云童 阿尔伯塔大学, 阿尔伯塔省 加拿大  
潘佳佳 中国水利水电科学研究院 流域水循环与调控国家重点实验室 北京 100038  
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中文摘要:
      针对天然河道开展冰情过程数值模拟普遍存在的河道断面资料、水文和气象资料缺少的难题,本研究提出了时均气温和时均太阳辐射计算方法和支流流量的动态分配方法,即根据实测日最大气温、日最小气温和日净太阳辐射率定出关键影响参数,模拟出给定气象站的时均气温和时均太阳辐射的变化过程;通过上游流量向下游传播过程的特征分析,推演出缺少支流流量条件下河道区间支流流量分配的合理比例。将本文方法应用到黄河内蒙河段冰情过程模拟计算中,模拟的巴彦高勒冰盖厚度值和冰盖前沿的发展同实测值吻合良好。本研究成果可应用到少资料条件下江、河、渠道冰情演变过程的数值模拟中,为天然河道冰情的准确模拟提供方法支撑。
英文摘要:
      Due to the limited field data on river geometry, hydrological and meteorological information, it is still a big challenge to predict ice situations in natural rivers during winter periods. In this study, a one-dimensional river ice model is presented using a new method for calculating hourly-averaged air temperature and solar radiation, and a new method for dynamic assignment of lateral inflows. Based on the measured daily maximum temperature,daily minimum temperature and daily net solar radiation,the most dominant parameters are calibrated to fit field observations. With these new methods, the river ice model can evaluate hourly-averaged air temperature and solar radiation for rivers lacking field data. It also provides a reasonable water assignment ratio for different lateral inflows by considering flow propagation processes from upstream to downstream. The river ice model is applied to the winter ice simulation in the Inner Mongolia section of the Yellow River. The simulated ice thickness at the Bayanggaole Gauging Station and the ice front progression agree well with the measured data, which confirms the accuracy of the ice model. The model might be further applied to other winter ice simulations for rivers with limited field data. It provides a useful tool for simulating ice situations accurately.
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