2008–2018年安徽省1 km分辨率降水数据集  

A dataset of gridded hourly precipitation at 1 km resolution over Anhui Province during 2008–2018

作　　者：温华洋[1] 陈凤娇 邱康俊[1] 朱华亮[1] WEN Huayang;CHEN Fengjiao;QIU Kangjun;ZHU Hualiang(Anhui meteorological information center,Hefei 230031,P.R.China;Nanjing joint institute for atmospheric Sciences,Nanjing 210019,P.R.China)

机构地区：[1]安徽省气象信息中心,合肥230031 [2]南京气象科技创新研究院,南京210019

出　　处：《中国科学数据（中英文网络版）》2022年第3期346-354,共9页China Scientific Data

基　　金：安徽省气象局研究型业务科技攻关项目(YJG202003);中国1km网格实况分析产品研发与业务应用(CXFZ2021Z007)。

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多个区域站和81个国家站观测的小时降水资料,利用薄盘样条插值算法,对多个降水插值模型进行精度评估,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。本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。Located in the East Asian Monsoon region,Anhui Province 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 are badly needed for the study on the climate change and the meteorological risk easements.On the basis of the hourly precipitation observed from about 2,400 regional stations and 81 national stations,taking advantage of the thin plate smoothing spline method,we first chose the best model parameters by comparing the accuracy of different model parameters.Hereafter,we established the gridded hourly precipitation dataset at 1 km resolution over Anhui Province 2008–2018 by using the best model parameters.This dataset can fully indicate 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.

关 键 词：降水 薄盘样条插值 安徽省 

分 类 号：P468.024[天文地球—大气科学及气象学]