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首页> 外文期刊>Geoscience and Remote Sensing, IEEE Transactions on >Uncertainty Assessment of the Estimated Atmospheric Delay Obtained by a Numerical Weather Model (NMW)
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Uncertainty Assessment of the Estimated Atmospheric Delay Obtained by a Numerical Weather Model (NMW)

机译：通过数值天气模型（NMW）获得的估计大气延迟的不确定性评估

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摘要

In this paper, the uncertainty of atmospheric delay maps obtained by a numerical weather model (NWM) is assessed. These models can simulate 3-D fields of meteorological parameters at coarse scales. A few approaches, which are mainly based on zenith wet delay estimates derived by NWM data, have been recently developed to mitigate atmospheric propagation artifacts in synthetic aperture radar interferometry applications. However, an assessment of these estimates is still missing. We present a methodology based on radiosonde data to assess the uncertainty of the meteorological parameters derived from an NWM and the dry and wet delays calculated using these parameters. The methodology is applied to the data generated by the Weather Research and Forecasting model that currently is the model with the higher accuracy relative to its predecessors.
机译：在本文中，评估了由数值天气模型（NWM）获得的大气延迟图的不确定性。这些模型可以粗略地模拟3D气象参数场。最近开发了一些方法，这些方法主要基于NWM数据得出的天顶湿延迟估计，以减轻合成孔径雷达干涉测量应用中的大气传播伪影。但是，仍缺少对这些估计的评估。我们提出了一种基于探空仪数据的方法，以评估从NWM得出的气象参数的不确定性以及使用这些参数计算出的干湿延迟。该方法适用于由天气研究和预报模型生成的数据，该模型目前是相对于其前身而言具有更高准确性的模型。

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