摘要
基于2017年12月至2018年3月在辽河石佛寺水库和黄河乌梁素海的冰温和冰厚观测数据,首先将冰温剖面形态划分为六种类型,然后统计分析调查期间各冰温剖面类型出现的时间和所占比例。发现辐射和气温联合影响冰温度剖面形态;纬度低,辐射强度大引起相同冰温剖面类型需要的气温偏低。各冰温剖面类型都能利用斯蒂芬方程统计,但系数不同,其中符合斯蒂芬模型理想冰温剖面形态的系数最大。各种形态系数的加权平均值与全部类型的综合统计系数较为接近。
Based on the observation data of ice temperature and ice thickness in Shifosi Reservoir of Liaohe River and Wuliangsuhai of Yellow River from December 2017 to March 2018,the ice temperature profile is firstly divided into six types,and then the occurrence time and percentage of each ice temperature profile type are analyzed statistically during the surveys.The results of statistical analysis indicate that the radiation and temperature jointly affect the ice temperature profile type.Low latitude and high radiation intensity lead to lower or higher temperature than that required by the same ice temperature profile type.Besides,each ice temperature profile type can be counted by Stephen′s equation,however,the coefficients are different.The coefficient of Stephen model′s ideal ice temperature profile type is the largest.The weighted average of the various coefficients almost equals to the comprehensive statistical coefficient of all types.
作者
卢志明
李志军
于贺海
魏玉成
贺杨
李颖卓
李伟
LU Zhiming;LI Zhijun;YU Hehai;WEI Yucheng;HE Yang;LI Yingzhuo;LI Wei(State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China;Shifosi Reservoir Management Bureau Limited Liability Company of Liaoning Province,Shenyang 110036,China)
出处
《水利科学与寒区工程》
2019年第5期10-15,共6页
Hydro Science And Cold Zone Engineering
基金
国家自然科学基金(51579028)
工信部高技术船舶项目(350631009)
关键词
冰温剖面
气温
辐射
冰厚
斯蒂芬方程
ice temperature profile
temperature
radiation
ice thickness
Stephen equation
