摘要
珠江流域降雨时空分布不均,年内、年际之间差异明显,连年旱、连季旱等情况时有发生,加之珠江河口受咸潮上溯影响,粤港澳大湾区城市群供水安全形势严峻。目前流域应对旱情存在预演能力不足、方案预案制定效率低等问题,为进一步提升流域旱情防御能力,按照数字孪生建设相关技术要求并结合珠江流域特点,完善了流域监测数据、河道地形等数据底板,研发了水利模型管理服务技术和方案预案高效生成技术,开发了具有多源旱情动态感知、多模型交互预报、多要素精准预警、多方案模拟预演、多方案预案智能生成等功能的抗旱“四预”平台,成功支撑了2021—2022年珠江流域抗旱保供水工作,有效提升珠江流域旱情应对能力,同时为珠江流域数字孪生建设提供了借鉴和参考。
The spatial and temporal distribution of rainfall in the Pearl River is uneven,with obvious differences in annual and interannual,and drought in successive seasons and years occurs from time to time.In addition,the Pearl River Estuary is affected by the saltwater intrusion,so the situation of water supply in the urban agglomeration of Guangdong-Hong Kong-Macao Greater Bay Area is critical.At present,the lack of drought drilling ability and the low efficiency of emergency scheme preparation are barriers of drought defense in the Pearl River Basin.In order to further enhance the basin drought defense ability,according to the relevant technical requirements of digital twins construction and combined with the characteristics of the Pearl River Basin,this study improved the database plate of basinal monitoring data and river channel topography,and developed the technology for management of water model and efficient generation of emergency scheme preparation.A“FEDE(forecasting,early-warning,drilling and emergency plan)”platform for the drought prevention have diverse functions.There are multi-source drought dynamic perception,multi-model interactive forecasting,multi-element precision early warning,multi-scheme simulation drilling and intelligent generation of multi-scheme emergency plan.These diverse functions successfully support the drought defense and water supply of the Pearl River during drought period of 2021 to 2022,effectively improves the drought response capacity of the Pearl River Basin.Moreover,it provides a reference for the construction of digital twins in the Pearl River Basin.
作者
王珊琳
王井腾
杨跃
范光伟
田茂春
WANG Shanlin;WANG Jingteng;YANG Yue;FAN Guangwei;TIAN Maochun(Pearl River Water Resources Research Institute,Guangzhou 510611)
出处
《中国防汛抗旱》
2023年第6期25-29,共5页
China Flood & Drought Management
基金
水利部重大科技项目(SKS-2022143)。
关键词
旱情防御
“四预”
数字孪生
珠江流域
drought prevention
FEDE(forecasting,early-warning,drilling and emergency plan)
Digital Twin
Pearl River Basin
