摘要
根据等效地球代替地球半径近似定位来计算指定雷达仰角及经纬度上空所通过雷达波束的方位角、及波束长度以及波束所处位置的海拔高度,使得指定经纬度上空的雷达回波的实时获取更加方便可靠、可信,从而有效迅速地将雷达回波由极坐标方式转换为麦卡托方式,并在Google地图上显示。雷达产品和卫星地图叠加后,增强了雷达产品的可视化效果,更方便于灾情定位、灾情调查、人影作业等。
According to the equivalent earth, instead of earth radius approximate location, the spec-ified radar elevation, radar beam azimuth angle, beam length, and beam position and altitude above the latitude and longitude are calculated, which make radar echo real-time acquisition over the specified lati- tude and longitude more convenient, reliable and credible, so as to effectively prompt transform the radar echo from polar coordinates into the Mercator, combined with a Google map application. Since radar product and satellite map superimposing, the radar product visualization effect is greatly improved, and the disaster positioning, disaster survey and operational work are more convenient.
出处
《气象与环境科学》
2012年第4期89-93,共5页
Meteorological and Environmental Sciences
