气候变化领域集成服务门户(CCPortal): Rainfall Nowcasting Using Commercial Microwave Links

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DOI	10.1029/2020GL089365
	Rainfall Nowcasting Using Commercial Microwave Links
	Imhoff R.O.; Overeem A.; Brauer C.C.; Leijnse H.; Weerts A.H.; Uijlenhoet R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	Accurate and timely precipitation forecasts are crucial for early warning. Rainfall nowcasting, the process of statistically extrapolating recent rainfall observations, is increasingly used for short-term forecasting. Nowcasts are generally constructed with high-resolution radar observations. As a proof of concept, we construct nowcasts with country-wide rainfall maps estimated from signal level data of commercial microwave links (CMLs) for 12 summer days in the Netherlands. CML nowcasts compare well to radar rainfall nowcasts. Provided well-calibrated CML rainfall estimates are employed, CML nowcasts can outperform unadjusted real-time radar nowcasts for high rainfall rates, which are underestimated as compared to a reference. Care should be taken with the sensitivity of the advection field derivation to areas with low CML coverage and the inherent measurement scale of CML data, which can be larger than the application scale. We see potential for rainfall nowcasting with CML data, for example, in regions where weather radars are absent. ©2020. The Authors.
英文关键词	Meteorological radar; Weather forecasting; High resolution radar; Measurement scale; Precipitation forecast; Proof of concept; Radar rainfall; Rainfall estimates; Rainfall rates; Short-term forecasting; Rain; advection; calibration; microwave imagery; nowcasting; radar; rainfall; sensitivity analysis; summer; weather forecasting; Netherlands
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169638
作者单位	Hydrology and Quantitative Water Management Group, Wageningen University & Research, Wageningen, Netherlands; Operational Water Management & Early Warning, Department of Inland Water Systems, Deltares, Delft, Netherlands; R&D Observations and Data Technology, Royal Netherlands Meteorological Institute, De Bilt, Netherlands
推荐引用方式 GB/T 7714	Imhoff R.O.,Overeem A.,Brauer C.C.,et al. Rainfall Nowcasting Using Commercial Microwave Links[J],2020,47(19).
APA	Imhoff R.O.,Overeem A.,Brauer C.C.,Leijnse H.,Weerts A.H.,&Uijlenhoet R..(2020).Rainfall Nowcasting Using Commercial Microwave Links.Geophysical Research Letters,47(19).
MLA	Imhoff R.O.,et al."Rainfall Nowcasting Using Commercial Microwave Links".Geophysical Research Letters 47.19(2020).