基于不同尺度下的非结冰期水面蒸发影响因素灰色关联分析

文章根据新疆尉犁县气象站2008年4月至10月非结冰期水面蒸发量及相关常规气象观测资料,利用灰色关联分析法研究了不同尺度下各气象要素对水面蒸发量的影响程度。结果表明：在不同计算尺度下,水汽压、相对湿度与日照时数这三气象因素的影响程度排序无变化,说明计算尺度对其影响较小；温度（包括平均气温、最高气温与最低气温）与风速因素对蒸发量的影响程度随着研究尺度的变化而变化,其中平均温度与平均风速这两因素随着研究尺度的增大而影响程度随之增大；构成研究区域水面蒸发主要影响因素的是温度因素（包括平均气温、最高气温与最低气温）与风速因素。研究结果为区域水资源的规划、优化调度与管理提供了重要参考。

Study on Water Surface Evaporation during Non-freezing Period of Different Scale based on Gray Relational Analysis

According to the water surface evaporation and related meteorology data in Xinjiang Yuli county meteorological station from April to October 2008, this paper analyzed the impact of each meteorology element to the water surface evaporation by grey relational analysis method under different scales, the results showed that: under different computing scale, the vapor pressure, relative humidity and sunshine hours three meteorological factors unchanged, indicating that the calculation of its impact on small scales; temperature (including average temperature, maximum temperature and minimum temperature) and wind speed factors on the influential degree of water surface evaporation with the change of scale, the average temperature and average wind speed of which these two factors as the increasing scale of impact is even greater; the temperature factors (including average temperature, maximum temperature and minimum temperature) and wind factors constitutes the main factors affecting water surface evaporation in study area. The results for the regional water planning, optimal scheduling and management provides an important reference.