First experiences of the operational use of a dual-polarisation weather radar in Finland
First experiences of the operational use of a dual-polarisation weather radar in Finland
复制标题
芬兰首次使用双偏振天气雷达的经验
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
L. Nevvonen
中科院分区：
文献类型：
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作者：
E. Saltikoff;L. Nevvonen
在双偏振雷达用于研究30年后，许多国家气象服务机构目前正在将其投入使用。在芬兰，三个系统已经在运行，数据被整合到国家气象服务基础设施中。这为应用开辟了新的可能性，但也为测量设计提出了新的挑战。我们的解决方案是将双偏振优化的测量与另一组优化的多普勒速度数据的最佳质量的测量交替进行。本文描述了如何设计新的测量计划，以平衡最终用户的不同需求。在几个月的使用后，我们用三个典型芬兰气候的天气情况的案例研究来说明我们的经验。
Many national weather services are currently bringing dual-polarisation radars into operational use, after three decades of its use in research. In Finland, three systems are already running operationally, and the data are integrated into the national weather service infrastructure. This opens up new possibilities for applications, but also sets new challenges for measurement design. Our solution has been to alternate measurements optimized for dual-polarisation with another set of measurements optimized for the best quality of Doppler velocity data. This paper describes how the new measurement schedule was designed, balancing between the different needs of the end-users. Our experience after a few months of usage is illustrated with three case studies in weather situations typical of the Finnish climate.