银川市城市供水与气象条件的相关关系分析  

Correlation Analysis on Water Supply and Meteorological Factors in Yinchuan City

作　　者：肖云清 杨苑[1,3] 任柏帆 翟颖佳 刘鹏兵[1,5] XIAO Yunqing;YANG Yuan;REN Bofan;ZHAI Yingjia;LIU Pengbing(Key laboratory for Meteorological Disaster Monitoring and Warning and Management of Characteristic Agriculture in Arid Regions,CMA,Yinchuan 750002,China;Yinchuan Bureau of Meteorology,Yinchuan 750002,China;Zhongwei Bureau of Meteorology,Zhongwei 755000,China;Ningxia Branch of China Telecom Co.,Ltd.,Yinchuan750002,China;Ningxia Meteorological Observatory,Yinchuan 750002,China)

机构地区：[1]中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室,宁夏银川750002 [2]银川市气象局,宁夏银川750002 [3]中卫市气象局,宁夏中卫755000 [4]中国电信股份有限公司宁夏分公司,宁夏银川750002 [5]宁夏气象台,宁夏银川750002

出　　处：《宁夏工程技术》2021年第3期204-207,共4页Ningxia Engineering Technology

基　　金：中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室指令性项目(CAMP-201918)。

摘　　要：利用皮尔逊相关系数分析方法,对银川市用水高峰期供水量和同期气象因子的相关性进行分析,分别建立日供水量和不同气象因子的一元线性回归方程。结果表明,2016—2019年5月22日至8月22日银川市总供水量和最高、最低供水量稳中有升,日供水量差异较大,受降水、温度影响明显。日供水量与平均气温、最高气温、相对湿度、蒸发量、日照时数、能见度呈正相关,而与相对湿度、降水量呈负相关,即在高温、干燥、晴天、日照充足或者出现雾、沙尘等能见度较低的天气时,供水量需求大,而在阴雨天,日照时间短、温度低的情况下,日供水量会减少;蒸发量对日供水量变化的贡献最大,蒸发量每增加1 mm,日供水量大约增加2.45万m^(3);最高气温与日供水量呈正相关,连续3 d高温天气,日用水量剧增。The correlation between water supply during the peak period of water consumption in Yinchuan and the corresponding meteorological factors is analyzed by using Pearson product-moment Correlation Coefficient,and the linear regression equations of daily water supply and different meteorological factors are established.The results show that total water supply,highest and lowest water supply is steady and rising in Yinchuan from May 22th,2016 to August 22th,2019.The daily water supply varies greatly,affected significantly by precipitation and temperature.Daily water supply is positively correlated with average air temperature,maximum air temperature,relative humidity,evaporation,sunshine hours and visibility,but negatively correlated with relative humidity and precipitation.Namely there is sufficient sunshine or fog,dust and other poor visibility weather,water demand is large,and in cloudy,rainy,short sunshine,low temperature days,daily water supply will reduce.Evaporation contribute the most to the change of daily water supply.The daily water supply increases by 24,500 m^(3) for every 1 mm increase in evaporation.The maximum temperature has a positive correlation with the daily water supply.Daily water supply increase sharply in three consecutive days of high temperature.

关 键 词：日供水量 气象要素 相关关系 分析 

分 类 号：P49[天文地球—大气科学及气象学]