CAJ | 학술논문

基于自主开发蒸发波导诊断分析模型,开展了蒸发波导高度敏感性数值试验研究,发现在几乎所有层结条件下,海面相对湿度是影响蒸发波导高度变化的最敏感因子,其次是海面气温、海表面水温和海面风速,气压变化影响可忽略不计.若使蒸发波导高度诊断分析均方差小于或接近于蒸发波导高度10%,则在稳定层结下要求气温和海表面水温误差不大于0.2℃、相对湿度误差不大于1%、海面风速误差不大于0.5 m/s,在不稳定和中性层结下要求气温和海表面水温误差不大于0.5℃、相对湿度误差不大于3%、低风速时风速误差不大于0.5 m/s、高风速时风速误差不大于1.0 m/s.
기우자주개발증발파도진단분석모형,개전료증발파도고도민감성수치시험연구,발현재궤호소유층결조건하,해면상대습도시영향증발파도고도변화적최민감인자,기차시해면기온、해표면수온화해면풍속,기압변화영향가홀략불계.약사증발파도고도진단분석균방차소우혹접근우증발파도고도10%,칙재은정층결하요구기온화해표면수온오차불대우0.2℃、상대습도오차불대우1%、해면풍속오차불대우0.5 m/s,재불은정화중성층결하요구기온화해표면수온오차불대우0.5℃、상대습도오차불대우3%、저풍속시풍속오차불대우0.5 m/s、고풍속시풍속오차불대우1.0 m/s.
@@@@Based on the evaporation duct model developed by the authors, numerical sensitivity experiments of evaporation duct were studied. It was found that the surface air relative humidity is the most sensitive factor influencing evaporation duct height for almost all stability conditions. The second sensitive factors are the surface air temperature, the sea surface temperature, and the surface wind speed. The contribution of surface air pressure perturbation can be neglected. In order to make the root mean square of the diagnosed height error of evaporation duct less than or greater than but near the 10%of the evaporation duct height, it is required that the surface air temperature error and the sea surface temperature error are not greater than 0.2 ℃, respectively, the relative humidity error is not greater than 1%, and the sea surface wind speed error is not greater than 0.5 m/s in stable condition, but the surface air temperature error and the sea surface temperature error are not greater than 0.5 ℃, respectively, the relative humidity error is not greater than 3%, and the sea surface wind speed error is not greater than 0.5 m/s for slow wind speed, and not greater than 1.0 m/s for high wind speed in unstable and neutral conditions.