A　numerical　model　on　sea　surface　wind　of　typhoon　and　its　hindcasting　calibration  

作　　者：She Jun Yuan Yeli and Pan Zengdi 

出　　处：《Acta Oceanologica Sinica》1994年第1期47-55,共9页海洋学报（英文版）

摘　　要：A numerical model on typhoon sea surface wind is developed and then tested. The model is devided into two parts. The first part is the derivation of the vertically averaged boundary layer dynamic equation and fromthe equation, a quasi-steady state of vertically averaged wind field of typhoon for a given pressure field is obtained ;the second part is to convert vertically averaged wind to that at 10-m elevation. With observed Marex buoy data ofthree typhoon cases in the South China Sea, the model wind is calibrated.The results show that, at buoy sites, the correlation coefficient is about 0. 95 between the hindcast and the observed wind speeds. The error statistics show that the error of maximum value of wind speed is smaller than 2 m/s and the absolute mean relative error of wind speeds about 10% and wind direction 15°or so. With the hindcastwind as an input of the third generation wave model, the wave hindcast results are also well calibrated.A numerical model on typhoon sea surface wind is developed and then tested. The model is devided into two parts. The first part is the derivation of the vertically averaged boundary layer dynamic equation and fromthe equation, a quasi-steady state of vertically averaged wind field of typhoon for a given pressure field is obtained ;the second part is to convert vertically averaged wind to that at 10-m elevation. With observed Marex buoy data ofthree typhoon cases in the South China Sea, the model wind is calibrated.The results show that, at buoy sites, the correlation coefficient is about 0. 95 between the hindcast and the observed wind speeds. The error statistics show that the error of maximum value of wind speed is smaller than 2 m/s and the absolute mean relative error of wind speeds about 10% and wind direction 15°or so. With the hindcastwind as an input of the third generation wave model, the wave hindcast results are also well calibrated.

分 类 号：P732[天文地球—海洋科学]