基于CMADS和流域相似理论的无资料地区水文模拟——以元江-红河流域为例  

Hydrological simulation based on CMADS dataset and basin similarity in ungauged areas:A case study of Yuanjiang-Red River basin

作　　者：王洁 陈裕迪 梁峰铭 葛慧 刘淼[3] 陈家栋[4] 王丽荣 WANG Jie;CHEN Yudi;LIANG Fengming;GE Hui;LIU Miao;CHEN Jiadong;WANG Lirong(School of Hydrology and Water Resources,Nanjing University of Information Science&Technology,Nanjing 210044,China;Guangde Agricultural and Rural Bureau,Guangde 242200,China;Jiangsu Province Hydrology and Water Resources Investigation Bureau,Nanjing 210044,China;Nanjing Branch of Jiangsu Province Bureau of Hydrology and Water Resources Survey,Nanjing 210044,China;Hebei Meteorological Disaster Prevention and Environmental Meteorological Center,Shijiazhuang 050021,China)

机构地区：[1]南京信息工程大学水文与水资源工程学院,南京210044 [2]广德市农业农村局,安徽广德242200 [3]江苏省水文水资源勘测局,南京210029 [4]江苏省水文水资源勘测局南京分局,南京210007 [5]河北省气象灾害防御和环境气象中心,石家庄050021

出　　处：《南水北调与水利科技（中英文）》2024年第3期534-544,共11页South-to-North Water Transfers and Water Science & Technology

基　　金：河北省省级科技计划资助项目(19275408D);江苏省水利科技项目(2020040);国家自然科学基金项目(41877158);江苏省大学生创新创业训练项目(202210300131Y)。

摘　　要：无水文资料地区,水文模型的参数难以确定。基于此,提出一套无资料地区水文模拟的方法体系,首先利用开源再分析数据驱动水文模型,然后基于流域相似性理论进行模型参数移植,完成无资料地区水文模拟。以元江-红河多国跨界流域为例,将流域划分成123个子流域,基于根据高程、坡度、形状系数、森林覆盖率、降水与蒸散发等指标,利用主成分分析和流域相似度计算对123个子流域进行相似性分析;再基于水文资料和相似性结果,将7个有流量资料的子流域划分出4组相似流域;对有资料流域进行参数率定和验证,模拟结果良好,经过参数移植后,无资料流域的模拟结果均得到了提高。基于流域相似性的参数区域化和开源再分析数据的无资料地区水文模拟方法,可以为无资料地区的水文模拟与水资源管理带来更多可能。In recent years,extreme weather such as drought and floods have occurred more frequently,and the study of watershed water cycle under changing environments is of great research significance.However,the construction of hydrological and meteorological stations in some regions of the world is not perfect enough,and the consistency of hydrological data in some regions is also disrupted due to changes in underlying surface and climate.These have led to lack of data in many study areas,posing a great obstacle to watershed hydrological simulation.As a multinational basin,the research data in the study area is difficult to fully obtain,which leads to similar difficulties in hydrological simulation of cross-border watersheds as in hydrological simulation of areas lacking data.A set of hydrological research methods suitable for regions lacking data in cross-border watersheds are aimed to be explored.The research method was mainly based on hydrological model and watershed similarity theory.Meteorological data,as an important input data for hydrological simulation,is often difficult to fully obtain in areas without data.Reanalysis data CMADS as a supplement to meteorological data in the hydrological simulation of the Red River basin was selected and its applicability in the Red River basin was studied.Based on the SWAT model and watershed elevation data,the Red River basin was divided into 123 sub watersheds.Then,a series of indicators such as elevation,slope,shape coefficient,forest coverage,precipitation and evapotranspiration were introduced to analyze the similarity of 123 sub watersheds by using of principal component analysis.According to existing little hydrological data and similarity results,four groups of similar watersheds were divided.Model parameters were well calibrated and validated in the basins with enough data,and then the validated parameters were used to drive the hydrological model in the data-shortage basins.The research results were as follows:In the Red River basin,the SWAT model was driven by both tr

关 键 词：无资料 CMADS SWAT模型 流域相似性 参数移植 

分 类 号：P343[天文地球—水文科学]