南水北调中线工程冬季气温与水温关联性  

Correlation analysis between winter air temperature and water temperature of the Middle Route of South-to-North Water Transfers Project

作　　者：高杰培 朱昊哲 艾新龑 GAO Jiepei;ZHU Haozhe;AI Xinyan(China South-to-North Water Diversion Group Middle Line Co.,Ltd,Henan Branch,Zhengzhou 450016,China)

机构地区：[1]中国南水北调集团中线有限公司河南分公司,郑州450016

出　　处：《南水北调与水利科技（中英文）》2023年第6期1109-1115,共7页South-to-North Water Transfers and Water Science & Technology

摘　　要：为探讨南水北调中线工程中渠水温度与沿途气温之间的关系,采用等距抽样方法,从南到北在南水北调中线节制闸中选取7座节制闸作为分析样本,收集统计2022年11月15日—2023年2月28日所选节制闸的水温信息和所在地的气温信息。结果表明:7座节制闸的冬季水温变化趋势和15日移动平均气温变化相似;对南水北调中线上游段水温减去沿线15日气温差形成的数据与下游段水温数据进行对比,计算得到的皮尔逊相关系数均在0.95以上,相关性显著;在冬季,跨流域调水工程从南到北(上游到下游)的15日移动平均气温差是反映水体热量损失的主要表现形式。研究结果可为跨流域调水工程调整冰期输水调度策略、预防冰冻灾害提供理论依据。In the central and northern regions of China,due to the severe cold in winter,the inter-basin water flow will freeze,which will have a negative impact on the Middle Route of South-to-North Water Transfers Project.In order to investigate the relationship between the water temperature and the air temperature along the Middle Route of South-to-North Water Transfers Project,an equidistant sampling method was used to select a sluice gate about 200 km from south to north in the Middle Route of South-to-North Water Transfers Project as the data collection sample.A total of seven sluice gates were selected.The water temperature information of the selected sluice gates and the temperature information of the sluice gate location during the period from November 15,2022 to February 28,2023 were collected.The average temperature was used as the analysis object.The average temperature was the average of the highest temperature and the lowest temperature,and the water temperature at 18:00 was used as the the water temperature information of the sluice gate.By comparing the daily average temperature,water temperature,and 15-day moving average temperature of the seven sluice gates,it can be concluded that the trend of water temperature change is similar to the trend of 15-day moving average temperature change,and the fluctuation is consistent.The correlation characteristics of 15-day moving average temperature change and water temperature change along the Middle Route of South-to-North Water Transfers Project were studied.The data obtained by subtracting the temperature difference between the upstream and downstream sections from the water temperature of the sluice gate in the upstream section was compared with the water temperature in the downstream section.The specific steps were as follows:Step 1,the 15-day moving average temperature of the area where the upstream sluice gate was located from the 15-day moving average temperature of the area where the downstream sluice gate was located to obtain the temperature difference betw

关 键 词：南水北调中线工程 冬季输水 水温 气温 

分 类 号：TV68[水利工程—水利水电工程]