High‐resolution prediction of a major convective period over West Africa

High‐resolution prediction of a major convective period over West Africa
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西非主要对流时期的高分辨率预测

DOI:
10.1002/qj.2225
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发表时间:
2014
影响因子:
8.9
通讯作者:
R. Roca
R. Roca
中科院分区:
地球科学3区
文献类型:
--
作者:
F. Beucher;J. Lafore;F. Karbou;R. Roca

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在这篇文章中,我们使用一组高分辨率(5公里)的模拟来评估法国云分辨率模式AROME的预报,这些模拟集中在大范围(0-22°N,15°W-20°E)上记录良好的2006年7月23-28日的非洲季风多学科分析(AMMA)期间。根据全球定位系统对可降水量的独立观测和定量降水预报,对模型技能进行评估。由于西非的雨量计网络稀疏,模拟的降水场与来自卫星降水产品(TRMM-3B42)的数据进行了比较。结果表明,当大尺度强迫模式(ARPEGE)同化陆面上微波遥感传感器的地表敏感观测时,初始条件和边界条件显著改善了AROME预报。
In this article, we evaluate the predictions of the French cloud‐resolving model AROME using a set of high‐resolution (5 km) simulations that focus on the well documented African Monsoon Multidisciplinary Analysis (AMMA) period of 23–28 July 2006 over a large domain (0–22°N, 15°W–20°E). The model skill is assessed against independent Global Positioning System observations of precipitable water and in terms of quantitative precipitation forecasts. As the rain‐gauge network is sparse over West Africa, the simulated precipitation fields were compared with data from satellite‐based precipitation products (TRMM‐3B42). We show that initial and boundary conditions significantly improve the AROME forecasts when the large‐scale forcing model (ARPEGE) assimilates surface‐sensitive observations from microwave remote‐sensing sensors over land surface.
DOI: 10.1002/qj.2062
发表时间: 2012
影响因子: 8.9
作者:
Birch C
通讯作者: Birch C
2006 年 7 月观测到的非洲东波的剖析
DOI: 10.1002/qj.812
发表时间: 2011
影响因子: 8.9
作者:
Bain C
通讯作者: Bain C