利用传真地面天气图计算海面风  

Probe into the Problem of Wind Speed Calculation on the Surface Weather Chart

作　　者：杨亚新[1] 龚少军[1] 

机构地区：[1]南通航运职业技术学院,江苏南通226006

出　　处：《中国航海》2004年第1期67-70,共4页Navigation of China

摘　　要：推导出传真地面天气图上地转风与梯度风的近似计算公式,根据公式制作了地转风与梯度风查算图,并求算了30个站点的海面理论风速值。与实测风速比较,得到了海面摩擦系数和地转风近似法与梯度风近似法计算海面风速的适用条件。The geo-strophic wind and gradient wind appropriate calculation formulas used by Japan in facsimile surface weather chart broadcast are deduced and the geo-strophic wind and gradient wind calculation charts is produced. With the chart, the theoretical values of sea level wind speeds at 30 different sites are given. By comparing the theoretical wind speeds with real speeds, the suitable friction coefficient on sea level and the condition of applying the geo-strophic wind and gradient wind approximate calculation formulas are obtained.

关 键 词：水路运输 地面天气图 风速计算 海面风 地转风 梯度风 海面摩擦系数 

分 类 号：U675.12[交通运输工程—船舶及航道工程]