太湖典型风场变化过程中流场的响应特征研究  

Study on the Response of Flow During the Transition of Typical Wind Field in Lake Taihu

作　　者：丁文浩 张建华[3] 殷鹏[4] 赵金箫 阮仕平[1,2] 王勇 徐世凯[1,2] 王晓刚 李云[1,2] DING Wenhao;ZHANG Jianhua;YIN Peng;ZHAO Jinxiao;RUAN Shiping;WANG Yong;XU Shikai;WANG Xiaogang;LI Yun(The National Key Laboratory of Water Disaster Prevention,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Key Laboratory of Taihu Basin Water Resources Research and Management of Ministry of Water Resources,Nanjing 210029,China;Jiangsu Water Resources Department,Nanjing 210029,China;Jiangsu Water Resources Service Center,Nanjing 210029,China)

机构地区：[1]南京水利科学研究院水灾害防御全国重点实验室,江苏南京210029 [2]水利部太湖流域水治理重点实验室,江苏南京210029 [3]江苏省水利厅,江苏南京210029 [4]江苏省水资源服务中心,江苏南京210029

出　　处：《水文》2023年第6期103-110,共8页Journal of China Hydrology

基　　金：江苏省水利科技项目(2021030);国家自然科学基金青年项目(42001028);国家重点研发计划项目(2016YFC040150);中央级公益性科研院所基本科研业务费专项资金(Y121007,Y122013)。

摘　　要：风场是太湖湖流的主要驱动力,其变化直接影响着湖流结构。为了研究太湖风流作用机制,使用2台多普勒剖面仪流速仪(ADCP),30个GPS示踪粒子和3座气象站,开展了太湖风流的野外观测研究。研究结果表明,风场转变短时间内改变了湖流的结构,水面以下湖流对风场响应有一定的迟滞效应,而表层湖流对风场的反应极其敏感;风场的改变,在不同湖区对流场的影响并不完全一致,空间异质性显著,湖泊岸线等对湖流流向影响显著。探究了太湖流场对风场的响应特征,对于深刻理解湖流的环境效应,如蓝藻的迁移聚集等具有重要意义。Wind field is the main driving force of lake current in Lake Taihu,and the structure of lake current is affected by the change of wind field directly.In order to study the mechanism of wind-flow in Lake Taihu,two Acoustic Doppler Current Profiler(ADCP),30 GPS tracers and 3 weather stations were used to the field investigation for wind currents in Lake Taihu.The results show that the change of wind field influence on the structure of the lake flow in a short time.The flow under the water surface has a hysteresis response of the wind field,while the surface lake flow is sensitive to the change of the wind field.The change of wind field effects on the flow field in different lake areas inconsistently,the shoreline which has a significant influence on lake flow direction.This research explores the response of flow field to wind in Lake Taihu,which provides a perspective to understand the environmental effects of lake flow,such as the migration and aggregation of cyanobacteria.

关 键 词：太湖 风场 三维流场 表层流场 ADCP GPS示踪 

分 类 号：P334.6[天文地球—水文科学]