气候变化领域集成服务门户(CCPortal): UKGrsHP: a UK high-resolution gauge–radar–satellite merged hourly precipitation analysis dataset

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DOI	10.1007/s00382-020-05144-2
	UKGrsHP: a UK high-resolution gauge–radar–satellite merged hourly precipitation analysis dataset
	Yu J.; Li X.-F.; Lewis E.; Blenkinsop S.; Fowler H.J.
发表日期	2020
ISSN	0930-7575
起始页码	2919
结束页码	2940
卷号	54
英文摘要	There is an urgent need for high-quality and high-spatial-resolution hourly precipitation products around the globe, including the UK. Although hourly precipitation products exist for the UK, these either contain large errors, or are insufficient in spatial resolution. An efficient way to solve this is to develop a merged precipitation product that combines the information and benefits from multiple data sources, improving both the spatial resolution and accuracy of hourly precipitation estimates over the UK. In this study, we develop a UK high-resolution gauge–radar–satellite merged hourly precipitation analysis: the UKGrsHP. It covers the UK from 12.5° W to 3.5° E, 49° N–60° N, with a spatial resolution of 0.01° × 0.01° in latitude/longitude (equivalent to 1 km resolution in the mid-latitudes). An optimal interpolation (OI)–based multi-source merging scheme with compound strategy is developed and tested for producing the UKGrsHP. Three input data sources are used: gauge analysis data interpolated from 1903 quality-controlled hourly observations, the UK Nimrod radar precipitation analysis and the GSMaP global satellite precipitation analysis. Using independent tests against ~ 220 independent gauge observations on 1 year’s experimental UKGrsHP, covering the period from January to December 2014, we find that the final merged data performs better than three individual precipitation analyses used as inputs. A full version of the UKGrsHP starting in April 2004 is now under production, which will have wide applications in climate services and scientific research across multiple disciplines. © 2020, The Author(s).
英文关键词	High resolution; Hourly precipitation; Multi-source data merge; Optimal interpolation; UK
语种	英语
scopus关键词	interpolation; precipitation assessment; radar; raingauge; satellite data; spatial resolution; United Kingdom
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145562
作者单位	School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
推荐引用方式 GB/T 7714	Yu J.,Li X.-F.,Lewis E.,等. UKGrsHP: a UK high-resolution gauge–radar–satellite merged hourly precipitation analysis dataset[J],2020,54.
APA	Yu J.,Li X.-F.,Lewis E.,Blenkinsop S.,&Fowler H.J..(2020).UKGrsHP: a UK high-resolution gauge–radar–satellite merged hourly precipitation analysis dataset.Climate Dynamics,54.
MLA	Yu J.,et al."UKGrsHP: a UK high-resolution gauge–radar–satellite merged hourly precipitation analysis dataset".Climate Dynamics 54(2020).