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Assimilation of angle of arrival measurements from an antenna of GPS receivers in the WRF model

机译:来自WRF模型中GPS接收器的天线的到达角度的同化

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By tracking a GPS satellite with an antenna of receivers, it is possible to estimate the difference between the satellite elevation angle and the actual arrival angle of the transmitted signal in the line of sight of the antenna. Those measurements are assimilated through the use of a fast ray-tracing observation operator and its adjoint into a high resolution version of the Weather Research and Forecast model. Such assimilation has the potential to improve the description and prediction of the local refractivity field, through improved pressure, temperature and humidity, around the antenna.
机译:通过用接收器的天线跟踪GPS卫星,可以估计卫星仰角与发射信号在天线的视线中的实际到达角之间的差异。这些测量通过使用快速探测观察操作员和其伴随到天气研究和预测模型的高分辨率版本伴随。这种同化具有可能改善局部折射场的描述和预测,通过改善天线的改善的压力,温度和湿度。

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