Impact of Radiosonde Balloon Drift on Numerical Weather Prediction and Verification
Impact of Radiosonde Balloon Drift on Numerical Weather Prediction and Verification
复制标题
无线电探空仪气球漂移对数值天气预报和验证的影响
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
R. Sarrazin
中科院分区：
文献类型：
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作者：
S. Laroche;R. Sarrazin
摘要实时数值天气预报（NWP）应用中使用的无线电探空仪观测结果是通过使用字母数字代码的全球电信系统（GTS）传播的。这些代码不包括有关气球的位置和经过的上升时间的信息。因此，在 NWP 数据同化系统中，水平气球漂移通常被忽略或估计。随着大气模型分辨率的不断提高，现在在数据同化和预报验证系统中考虑无线电探空仪数据的位置和时间变得很重要。此信息现在可在无线电探空仪数据的气象数据表示二进制通用形式 (BUFR) 代码中找到。后一个代码将逐步取代 GTS 上传输的所有无线电探空仪数据的字母数字代码。因此，数值天气预报中心应采取一项策略来处理过渡期间无线电探空仪数据的各种代码。在这项工作中，一种方法...
AbstractRadiosonde observations employed in real-time numerical weather prediction (NWP) applications are disseminated through the Global Telecommunication System (GTS) using alphanumeric codes. These codes do not include information about the position and elapsed ascent time of the balloon. Consequently, the horizontal balloon drift has generally been either ignored or estimated in data assimilation systems for NWP. With the increasing resolution of atmospheric models, it is now important to consider the positions and times of radiosonde data in both data assimilation and forecast verification systems. This information is now available in the Binary Universal Form for the Representation of Meteorological Data (BUFR) code for radiosonde data. This latter code will progressively replace the alphanumeric codes for all radiosonde data transmitted on the GTS. As a result, a strategy should be adopted by NWP centers to deal with the various codes for radiosonde data during this transition. In this work, a meth...