More rapid lake heatwave development  

湖泊热浪正在以更快的速度建立

作　　者：Xiwen Wang R.Iestyn Woolway Kun Shi Boqiang Qin Yunlin Zhang 王溪雯;R.Iestyn Woolway;施坤;秦伯强;张运林

机构地区：[1]School of Geography&Ocean Science,Nanjing University,Nanjing 210023,China [2]Key Laboratory of Lake and Watershed Science for Water Security,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 211135,China [3]School of Ocean Sciences,Bangor University,Menai Bridge,Anglesey LL572DG,UK [4]University of Chinese Academy of Sciences,Beijing 100049,China [5]College of Nanjing,University of Chinese Academy of Sciences,Nanjing 211135,China

出　　处：《Science Bulletin》2024年第23期3672-3676,共5页科学通报(英文版)

基　　金：supported by the National Natural Science Foundation of China(42425102 and U22A20561);the Tibetan Plateau Scientific Expedition and Research Program(2019QZKK0202);the Nanjing Institute of Geography&Limnology Chinese Academy of Sciences(NIGLAS)Foundation(E1SL002);the Water Resource Science and Technology Project in Jiangsu Province(2020057);R.Iestyn Woolway was supported by a UK Research and Innovation(UKRI)Natural Environment Research Council(NERC)Independent Research Fellowship(NE/T011246/1)。

摘　　要：As our planet continues on a long-term warming trajectory,the formidable challenge of anthropogenic climate change becomes unmistakably apparent,exemplified by the heightened frequencies and intensities of extreme heat events that can profoundly impact natural ecosystems and societal structures[1,2].In contrast to the well-established scientific knowledge of heatwaves on land and at the surface of the ocean[2,3],our understanding of lake heatwaves is still limited.While the term“lake heatwave”is relatively new[4],there is increasing evidence that extreme hot water temperature impacts lake species and ecosystems either directly[5,6]or by,for example,reshaping the community composition of phytoplankton and thus influence food web dynamics[7,8].Understanding changes in lake heatwave dynamics is essential for predicting how temperature fluctuations impact aquatic organisms.Previous studies have predominantly focused on characterizing the overall intensity and duration of lake heatwaves[4,9].However,also critical are the rates at which lake heatwaves form and how quickly they dissipate.A rapid formation of a lake heatwave can leave aquatic species with minimal time to adapt and relocate,while a slow decay rate of heatwaves indicates a prolonged dissipation of accumulated heat[10].To address this knowledge gap,we define lake heatwaves as the period when daily lake surface water temperature exceeds a seasonally-varying 90th percentile threshold for a consecutive period of at least five days[4].Following Spillman et al.

关 键 词：SEASONAL wave EXTREME 

分 类 号：P73[天文地球—海洋科学]