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2008–2018年安徽省1 km分辨率降水数据集
Gridded hourly precipitation dataset at 1 km resolution over Anhui Province 2008 – 2018
: 2021 - 01 - 08
: 2021 - 01 - 12
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摘要&关键词
摘要:安徽省位于东亚季风区,是研究季风降水发生发展变化的关键区。长时间序列的高精度、高空间分辨率的精细化降水格点资料,可满足气候变化研究及气象灾害风险评估的需要。本文基于2008~2018年安徽省2400多区域站和81个国家站观测的小时降水资料,利用薄盘样条插值算法,形成多个降水插值模型并进行精度评估,筛选出最优模型。在此基础上,依据最优模型,研制了安徽省11年的1 km分辨率的小时降水网格产品。该数据集产品可较好地表征安徽省降水的季节变化、及空间变化,可应用于数值预报精度、洪涝灾害风险评估等领域。
关键词:降水;薄盘样条插值;安徽省
Abstract & Keywords
Abstract: Anhui province is located at the East Asian Monsoon region, which is a key region for the study on the initiation and development of the monsoon precipitation. The gridded hourly precipitation data at high spatial-temporal resolution is highly needed for the study on the climate change and the meteorological risk easements. On the basis of the hourly precipitation observed from about 2000 regional stations and 81 national stations, taking advantage of the thin plate smoothing spline method, the best model parameters are chosen firstly by comparing the accuracy of different model parameters. Hereafter, the Gridded hourly precipitation dataset at 1 km resolution over Anhui Province 2008 – 2018 are established using the best model parameters. This dataset can fully grasp the seasonal and spatial variations of precipitation over Anhui province, which can be used in the numerical model analysis and risk assessment of floods in the future.
Keywords: precipitation; Thin Plate Smoothing Spline; Anhui Province
稿件与作者信息
温华洋
Wen Huayang
陈凤娇
Chen Fengjiao
cfj@mail.ustc.edu.cn
邱康俊
Qiu Kangjun
朱华亮
Zhu Hualiang
出版历史
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