天山西部地区E-601型蒸发器与20cm口径蒸发皿观测资料对比分析

摘要

对天山西部地区4个代表站14～25年的E-601型蒸发器与20cm口径蒸发皿观测资料进行对比,得出了不同区域两种蒸发器(皿)水面蒸发量按通常的算术平均法直接计算的折算系数.并通过相关分析,提出了用一元线性回归数学模型估算折算系数的方法.旨在为充分利用现有长系列20cm口径蒸发皿资料,合理计算区域总蒸发量和开展水资源评价提供科学依据.%A comparative analysis was made on the observed evaporation data from the E -601 evaporators and 20cm pans at the 4 representative stations of the western Tianshan area during 14-25 years, and the evaporation coefficients of the two kinds of the instruments were calculated with arithmetic method. After the concerned analysis, it was proposed to make of coefficients estimation by using linear regression model. The results provide scientific basis for the best use of the available 20cm pans long series data,rational calculation of total evaporation and assessment of water resources.