报告时间：05月09日 11:00-12:00
报告地点：天津大学地科院（第16教学楼）221报告厅
主讲嘉宾：于圣得，加拿大滑铁卢大学访问研究员（邀请人：李思亮教授）
内容: The accelerating construction of dams has outpaced our capacity to model their climate-sensitive behavior at scale. These issues leave feedbacks, such as thermal stratification, oxygen loss, and eutrophication, unresolved. To address this, a comprehensive holistic resource is needed to bring together the variety of interdisciplinary parameters involved. Here we introduce the Global Reservoir Modeling Framework (GRM), which integrates bathymetric (ReGeom), meterological (ERA5), discharge (WaterGAP v2.2d), and inflow (FutureStreams) datasets for 6,824 reservoirs worldwide (GRanD), over a 40 year period (1980-2019). GRM provides reservoir-specific 30 × 30 2-D simulations, that can produce water quality modelling - CE-QUAL-W2 - ready input files, thereby bridging global datasets and multidimensional process models. To demonstrate the utility of the GRM database, we simulate the strengthening of reservoir thermal stratification, driven by decadal trends in air temperature, from 1980 to 2019. Model simulations show global mean surface-to-bottom temperature differences increasing at an average rate of 0.39°C per decade, implying longer hypoxic periods and altered nutrient cycling, with ramifications for reservoir operation and downstream water quality. The GRM database offers an open, reproducible platform that enables large-scale, process-based analyses of reservoir physics and biogeochemistry under past and future climate and management scenarios.
嘉宾简介：
于圣得，现任加拿大滑铁卢大学访问研究员，长期从事地球与环境科学、水环境建模与环境大数据分析研究。研究方向主要包括湖泊与水库水动力—水质过程模拟、热分层变化、营养盐及碳循环、水环境管理与全球尺度数据库构建。近年来围绕全球湖泊与水库建模、环境过程模拟及人工智能辅助分析开展系统研究，参与构建全球湖泊和水库模型数据库，相关成果已在 Water Research、Water Resources Research、Geochimica et Cosmochimica Acta 等国际期刊发表或合作发表多篇论文，并有成果在顶级期刊(Nature Water, Nature Geoscience)审稿与评审体系中持续推进。本人长期担任 Water Resources Research 等期刊审稿人，担任加拿大青年商务俱乐部副会长，与长安俱乐部等国内组织合作，积极参与青年人才交流、产学研合作与中外学术沟通，同时参与研究生指导、课程教学和学术讲座等工作，推进多方向国际学术交流与科研合作。
