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REPLY TO ZHANG ET AL.: Using long-term all-available Landsat data to study water bodies over large areas represents a paradigm shift 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (12) : 6310-6311
作者:  Feng, Shuailong;  Liu, Shuguang;  Huang, Zhihong;  Jing, Lei;  Zhao, Meifang;  Peng, Xi;  Yan, Wende;  Wu, Yiping;  Lv, Yihe;  Smith, Andrew R.;  McDonald, Morag A.;  Patil, Sopan D.;  Sarkissian, Arbi J.;  Shi, Zhihua;  Xia, Jun;  Ogbodo, U. S.
收藏  |  浏览/下载:10/0  |  提交时间:2020/05/13
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:7/0  |  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.


  
California forest die-off linked to multi-year deep soil drying in 2012-2015 drought 期刊论文
NATURE GEOSCIENCE, 2019, 12 (8) : 632-+
作者:  Goulden, M. L.;  Bales, R. C.
收藏  |  浏览/下载:1/0  |  提交时间:2019/11/27
Panel: Keep Landsat images free 期刊论文
SCIENCE, 2019, 364 (6446) : 1115-1115
作者:  Brainard, Jeffrey
收藏  |  浏览/下载:0/0  |  提交时间:2019/11/27
Comment on "Tropical forests are a net carbon source based on aboveground measurements of gain and loss" 期刊论文
SCIENCE, 2019, 363 (6423)
作者:  Hansen, Matthew C.;  Potapov, Peter;  Tyukavina, Alexandra
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
1984 Ivanovo tornado outbreak: Determination of actual tornado tracks with satellite data 期刊论文
ATMOSPHERIC RESEARCH, 2018, 207: 111-121
作者:  Chernokulsky, Alexander;  Shikhov, Andrey
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
Severe storm  Tornado climatology  Landsat images  Forest loss  Deep moist convection  Extreme weather event  
Methods for Estimating 2D Cloud Size Distributions from 1D Observations 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2017, 74 (10)
作者:  Romps, David M.;  Vogelmann, Andrew M.
收藏  |  浏览/下载:14/0  |  提交时间:2019/04/09
Arctic regional methane fluxes by ecotope as derived using eddy covariance from a low-flying aircraft 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2017, 17 (13)
作者:  Sayres, David S.;  Dobosy, Ronald;  Healy, Claire;  Dumas, Edward;  Kochendorfer, John;  Munster, Jason;  Wilkerson, Jordan;  Baker, Bruce;  Anderson, James G.
收藏  |  浏览/下载:15/0  |  提交时间:2019/04/09