Comparison of Precipitable Water Vapor Observations by GPS, Radiosonde and NWP Simulation
Comparison of Precipitable Water Vapor Observations by GPS, Radiosonde and NWP Simulation
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GPS、无线电探空仪和 NWP 模拟可降水水汽观测的比较
DOI：
10.5140/jass.2009.26.4.555
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发表时间：
2009
影响因子：
0.5
通讯作者：
Jungho Cho
中科院分区：
文献类型：
--
作者：
Chang;Jeongho Baek;Jungho Cho
将源自数值天气预报 (NWP) 模型的可降水水汽 (PWV) 与源自地面全球定位系统 (GPS) 接收器的观测结果进行比较。比较的模型数据来自嵌套网格上的天气研究和预报 (WRF) 模型短期预报。数值实验采用云微物理方案进行，并选择2008年昌马期进行对比。观测数据来自 2008 年 6 月至 7 月中旬在韩国 9 个地点为期 1 个月的 GPS 测量。总的来说，WRF 模型在再现 GPS 估计所描述的 PWV 的时间和空间演变方面表现出了相当高的技巧。 PWV 的预测与 GPS 估计值之间的相关性随着预测次数的增加而缓慢下降。与模拟进行比较
Precipitable water vapor (PWV) derived from a numerical weather prediction (NWP) model were compared to observations derived from ground-based Global Positioning System (GPS) receivers. The model data compared were from the Weather Research and Forecasting (WRF) model short-range forecasts on nested grids. The numerical experiments were performed by selecting the cloud microphysics schemes and for the comparisons, the Changma period of 2008 was selected. The observational data were derived from GPS measurements at 9-sites in South Korea over a 1-month period, in the middle of June-July 2008. In general, the WRF model demonstrated considerable skill in reproducing the temporal and spatial evolution of the PWV as depicted by the GPS estimations. The correlation between forecasts and GPS estimates of PWV depreciated slowly with increasing forecast times. Comparing simulations with a
影响因子：
3.2
作者：
Chen, F;Dudhia, J
通讯作者：
Dudhia, J