20m^2蒸发池水体冻结特征分析  

Study on Freeze Characteristic of Water in 20m^2 Evaporation Pool

作　　者：魏守忠[1] 常绪正[1] 李洪庆[1] 马健 

机构地区：[1]新疆水文水资源局三工河流域地下水环境监测站,新疆阜康831505 [2]新疆生态与地理研究所阜康荒漠生态系统观测试验站,新疆乌鲁木齐830011

出　　处：《新疆气象》2001年第5期35-37,共3页Bimonthly of Xinjiang Meteorology

摘　　要：对4年20m2蒸发池无积雪覆盖条件下的冰期试验资料分析表明:日平均气温稳定低于-2.8℃是冰期稳定冻结的开始,冰期冻结厚度与-2.8℃的积温有密切的关系。冰体年最大冻结厚度与积温、冻结历时天数呈线性关系;冻结厚度与负积温有相关性很好的“s”形曲线关系。Four years freeze data in 20m2 evaporation pool show that air temperature steadily under -2.8℃is necessary initial condition for steady freeze of water in 20m2 evaporation pool, there is an obvious relationship between freeze depth and air temperature. Air temperature controls freeze depth. Maximum depth has linear relationship with its accumulative temperature and days of freeze.Relationship between freeze depth and its minus accumulative temperature have a ' S ' type curve.The ' S ' type curve could be used to forecast freeze depth.

关 键 词：负积温 冰体冻结厚度 预测方程 蒸发池 水体冻结 气温 冻结历时天数 地面气象观测 

分 类 号：P332.8[天文地球—水文科学] P412.1[水利工程—水文学及水资源]