长江科学院院报2025，Vol.42Issue(2)：36-43,8.DOI:10.11988/ckyyb.20231131
面向三峡水库的水面蒸发模型
Water Surface Evaporation Model for the Three Gorges Reservoir
摘要
Abstract
This study aims to address the issue that existing water surface evaporation models do not account for the unique characteristics of the narrow and long channel type of the Three Gorges Reservoir.By analyzing water surface evaporation data from the Badong station in the Three Gorges Reservoir,we develop a water surface evaporation model specifically tailored for the Three Gorges Reservoir by introducing functions for water vapor temperature difference under different wind speeds in consideration of the influences of four primary factors:saturated water va-por pressure difference,relative humidity,wind speed,and vapor temperature difference.Results demonstrate that the proposed model accurately simulates the reservoir's water surface evaporation,particularly during the calibra-tion period,achieving a Nash efficiency coefficient(NSE)of 0.75,a significant improvement from 0.31 obtained with other traditional empirical models.The model's simulated evaporation values closely match measurements from five additional stations in the reservoir,validating its accuracy and reliability.This model provides valuable techni-cal support for the rational utilization and scientific management of water resources in the Three Gorges Reservoir.关键词
水面蒸发模型/机理分析/水汽温差函数/精度评估/水资源合理利用/三峡水库Key words
water surface evaporation model/mechanism analysis/water vapor temperature difference function/ac-curacy evaluation/rational utilization of water resources/Three Gorges Reservoir分类
天文与地球科学引用本文复制引用
彭玉洁,张冬冬,徐高洪,王卫光,林涛涛,白浩男..面向三峡水库的水面蒸发模型[J].长江科学院院报,2025,42(2):36-43,8.基金项目
国家自然科学基金联合基金项目(U2240218) （U2240218）
中国长江三峡集团有限公司科研资助项目(0704221) （0704221）
