Study on the Response of Flow During the Transition of Typical Wind Field in Lake Taihu
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 Pro-filer(ADCP),30 GPS tracers and 3 weather stations were used to the field investigation for wind currents in Lake Taihu.The re-sults show that the change of wind field influence on the structure of the lake flow in a short time.The flow under the water sur-face 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.
Lake Taihuwind field3-D flow fieldsurface flow fieldADCPGPS tracers