OCCAM global ocean model results were applied to calculate the monthly water transport through 7 straits around the East China Sea (ECS) and the South China Sea (SCS). Analysis of the features of velocity profiles and...OCCAM global ocean model results were applied to calculate the monthly water transport through 7 straits around the East China Sea (ECS) and the South China Sea (SCS). Analysis of the features of velocity profiles and their variations in the Togara Strait, Luzon Strait and Eastern Taiwan Strait showed that: 1) the velocity profiles had striped pattern in the Eastern Taiwan Strait, where monthly flux varied from 22.4 to 28.1 Sv and annual mean was about 25.8 Sv; 2) the profiles of velocity in the Togara Strait were characterized by core structure, and monthly flux varied from 23.3 to 31.4 Sv, with annual mean of about 27.9 Sv; 3) water flowed from the SCS to the ECS in the Taiwan Strait, with maximum flux of 3.1 Sv in July and minimum of 0.9 Sv in November; 4) the flux in the Tsushima Strait varied by only about 0.4 Sv by season and its annual mean was about 2.3 Sv; 5) Kuroshio water flowed into the SCS in the Luzon Strait throughout the year and the velocity profiles were characterized by multi core structure. The flux in the Luzon Strait was minimum in June (about 2.4 Sv) and maximum in February (about 9.0 Sv), and its annual mean was 4.8 Sv; 6) the monthly flux in the Mindoro Strait was maximum in December (3.0 Sv) and minimum in June (only 0.1 Sv), and its annual mean was 1.3 Sv; 7) Karimata Strait water flowed into the SCS from May to August, with maximum inflow flux of about 0.75 Sv in June and flowed out from September to April at maximum outflow flux of 3.9 Sv in January. The annual mean flux was about 1.35 Sv.展开更多
A new ocean wave and sea surface current monitoring system with horizontally-(HH) and vertically-(VV) polarized X-band radar was developed.Two experiments into the use of the radar system were carried out at two sites...A new ocean wave and sea surface current monitoring system with horizontally-(HH) and vertically-(VV) polarized X-band radar was developed.Two experiments into the use of the radar system were carried out at two sites,respectively,for calibration process in Zhangzi Island of the Yellow Sea,and for validation in the Yellow Sea and South China Sea.Ocean wave parameters and sea surface current velocities were retrieved from the dual polarized radar image sequences based on an inverse method.The results obtained from dual-polarized radar data sets acquired in Zhangzi Island are compared with those from an ocean directional buoy.The results show that ocean wave parameters and sea surface current velocities retrieved from radar image sets are in a good agreement with those observed by the buoy.In particular,it has been found that the vertically-polarized radar is better than the horizontally-polarized radar in retrieving ocean wave parameters,especially in detecting the significant wave height below 1.0 m.展开更多
文摘OCCAM global ocean model results were applied to calculate the monthly water transport through 7 straits around the East China Sea (ECS) and the South China Sea (SCS). Analysis of the features of velocity profiles and their variations in the Togara Strait, Luzon Strait and Eastern Taiwan Strait showed that: 1) the velocity profiles had striped pattern in the Eastern Taiwan Strait, where monthly flux varied from 22.4 to 28.1 Sv and annual mean was about 25.8 Sv; 2) the profiles of velocity in the Togara Strait were characterized by core structure, and monthly flux varied from 23.3 to 31.4 Sv, with annual mean of about 27.9 Sv; 3) water flowed from the SCS to the ECS in the Taiwan Strait, with maximum flux of 3.1 Sv in July and minimum of 0.9 Sv in November; 4) the flux in the Tsushima Strait varied by only about 0.4 Sv by season and its annual mean was about 2.3 Sv; 5) Kuroshio water flowed into the SCS in the Luzon Strait throughout the year and the velocity profiles were characterized by multi core structure. The flux in the Luzon Strait was minimum in June (about 2.4 Sv) and maximum in February (about 9.0 Sv), and its annual mean was 4.8 Sv; 6) the monthly flux in the Mindoro Strait was maximum in December (3.0 Sv) and minimum in June (only 0.1 Sv), and its annual mean was 1.3 Sv; 7) Karimata Strait water flowed into the SCS from May to August, with maximum inflow flux of about 0.75 Sv in June and flowed out from September to April at maximum outflow flux of 3.9 Sv in January. The annual mean flux was about 1.35 Sv.
基金Supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Nos.KZCX1-YW-12-04,KZCX2-YW-201)the Instrument Developing Project of the Chinese Academy of Sciences (No.YZ200724)
文摘A new ocean wave and sea surface current monitoring system with horizontally-(HH) and vertically-(VV) polarized X-band radar was developed.Two experiments into the use of the radar system were carried out at two sites,respectively,for calibration process in Zhangzi Island of the Yellow Sea,and for validation in the Yellow Sea and South China Sea.Ocean wave parameters and sea surface current velocities were retrieved from the dual polarized radar image sequences based on an inverse method.The results obtained from dual-polarized radar data sets acquired in Zhangzi Island are compared with those from an ocean directional buoy.The results show that ocean wave parameters and sea surface current velocities retrieved from radar image sets are in a good agreement with those observed by the buoy.In particular,it has been found that the vertically-polarized radar is better than the horizontally-polarized radar in retrieving ocean wave parameters,especially in detecting the significant wave height below 1.0 m.
