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The past and future of global river ice 期刊论文
NATURE, 2020, 577 (7788) : 69-+
作者:  Yang, Xiao;  Pavelsky, Tamlin M.;  Allen, George H.
收藏  |  浏览/下载：43/0  |  提交时间：2020/05/13

More than one-third of Earth'  s landmass is drained by rivers that seasonally freeze over. Ice transforms the hydrologic(1,2), ecologic(3,4), climatic(5) and socio-economic(6-8) functions of river corridors. Although river ice extent has been shown to be declining in many regions of the world(1), the seasonality, historical change and predicted future changes in river ice extent and duration have not yet been quantified globally. Previous studies of river ice, which suggested that declines in extent and duration could be attributed to warming temperatures(9,10), were based on data from sparse locations. Furthermore, existing projections of future ice extent are based solely on the location of the 0-degrees C isotherm11. Here, using satellite observations, we show that the global extent of river ice is declining, and we project a mean decrease in seasonal ice duration of 6.10 +/- 0.08 days per 1-degrees C increase in global mean surface air temperature. We tracked the extent of river ice using over 400,000 clear-sky Landsat images spanning 1984-2018 and observed a mean decline of 2.5 percentage points globally in the past three decades. To project future changes in river ice extent, we developed an observationally calibrated and validated model, based on temperature and season, which reduced the mean bias by 87 per cent compared with the 0-degree-Celsius isotherm approach. We applied this model to future climate projections for 2080-2100: compared with 2009-2029, the average river ice duration declines by 16.7 days under Representative Concentration Pathway (RCP) 8.5, whereas under RCP 4.5 it declines on average by 7.3 days. Our results show that, globally, river ice is measurably declining and will continue to decline linearly with projected increases in surface air temperature towards the end of this century.


  
The Role of Rain-on-Snow in Flooding Over the Conterminous United States 期刊论文
WATER RESOURCES RESEARCH, 2019
作者:  Li, Dongyue;  Lettenmaier, Dennis P.;  Margulis, Steven A.;  Andreadis, Konstantinos
收藏  |  浏览/下载：12/0  |  提交时间：2020/02/16
rain on snow  snow hydrology  flood  hydrologic extreme  climate change  
Rising Temperatures Increase Importance of Oceanic Evaporation as a Source for Continental Precipitation 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (22) : 7713-7726
作者:  Findell, Kirsten L.;  Keys, Patrick W.;  Van Der Ent, Ruud J.;  Lintner, Benjamin R.;  Berg, Alexis;  Krasting, John P.
收藏  |  浏览/下载：39/0  |  提交时间：2019/11/27
Atmosphere-land interaction  Hydrologic cycle  Climate change  Water budget  balance  Numerical analysis  modeling  General circulation models  
Future Intensification of the Water Cycle with an Enhanced Annual Cycle over Global Land Monsoon Regions 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (17) : 5437-5452
作者:  Zhang, Wenxia;  Zhou, Tianjun;  Zhang, Lixia;  Zou, Liwei
收藏  |  浏览/下载：22/0  |  提交时间：2019/11/27
Hydrologic cycle  Monsoons  Precipitation  Climate change  
Extreme weather events and transmission losses in arid streams 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (8)
作者:  Schreiner-McGraw, Adam P.;  Ajami, Hoori;  Vivoni, Enrique R.
收藏  |  浏览/下载：28/0  |  提交时间：2019/11/27
dryland ecohydrology  groundwater recharge  distributed hydrologic modeling  climate change  water balance  
A New Perspective on Terrestrial Hydrologic Intensity That Incorporates Atmospheric Water Demand 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (14) : 8114-8124
作者:  Ficklin, Darren L.;  Abatzoglou, John T.;  Novick, Kimberly A.
收藏  |  浏览/下载：17/0  |  提交时间：2019/11/27
hydrologic cycle  precipitation  evapotranspiration  climate change  
Climate Variability and Change of Mediterranean-Type Climates 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (10) : 2887-2915
作者:  Seager, Richard;  Osborn, Timothy J.;  Kushnir, Yochanan;  Simpson, Isla R.;  Nakamura, Jennifer;  Liu, Haibo
收藏  |  浏览/下载：19/0  |  提交时间：2019/11/26
Subtropics  Atmosphere-ocean interaction  Climate change  Climate classification  regimes  Climate variability  Hydrologic cycle  
Structural and functional responses of invertebrate communities to climate change and flow regulation in alpine catchments 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (5) : 1612-1628
作者:  Bruno, Daniel;  Belmar, Oscar;  Maire, Anthony;  Morel, Adrien;  Dumont, Bernard;  Datry, Thibault
收藏  |  浏览/下载：25/0  |  提交时间：2019/11/26
aquatic communities  functional diversity  functional traits  global change  hydrologic alteration  macroinvertebrates  rivers  taxonomic diversity  
Can We Constrain Uncertainty in Hydrologic Cycle Projections? 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (7) : 3911-3916
作者:  Prein, Andreas F.;  Pendergrass, Angeline G.
收藏  |  浏览/下载：18/0  |  提交时间：2019/11/26
hydrologic sensitivity  precipitation  climate models  uncertainties  climate change  
Thermodynamic versus Dynamic Controls on Extreme Precipitation in a Warming Climate from the Community Earth System Model Large Ensemble 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (4) : 1025-1045
作者:  Norris, Jesse;  Chen, Gang;  Neelin, J. David
收藏  |  浏览/下载：22/0  |  提交时间：2019/04/09
Hydrologic cycle  Mass fluxes/transport  Extreme events  Precipitation  Climate change  Moisture/moisture budget