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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.


  
Testing early warning metrics for drought-induced tree physiological stress and mortality 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (7) : 2459-2469
作者:  Anderegg, William R. L.;  Anderegg, Leander D. L.;  Huang, Cho-ying
收藏  |  浏览/下载：5/0  |  提交时间：2019/11/27
climate change  drought  extreme events  plant hydraulics  remote sensing  
Spatiotemporal remote sensing of ecosystem change and causation across Alaska 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (3) : 1171-1189
作者:  Pastick, Neal J.;  Jorgenson, M. Torre;  Goetz, Scott J.;  Jones, Benjamin M.;  Wylie, Bruce K.;  Minsley, Burke J.;  Genet, Helene;  Knight, Joseph F.;  Swanson, David K.;  Jorgenson, Janet C.
收藏  |  浏览/下载：7/0  |  提交时间：2019/04/09
Arctic  boreal forest  coastal processes  glaciers  insect damage  shrub expansion  surface water  thermokarst  time-series analysis  wildfire  
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
Assessing environmental impacts and change in Myanmar's mangrove ecosystem service value due to deforestation (2000-2014) 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (11) : 5391-5410
作者:  Estoque, Ronald C.;  Myint, Soe W.;  Wang, Chuyuan;  Ishtiaque, Asif;  Aung, Toe T.;  Emerton, Lucy;  Ooba, Makoto;  Hijioka, Yasuaki;  Mon, Myat S.;  Wang, Zhe;  Fan, Chao
收藏  |  浏览/下载：6/0  |  提交时间：2019/04/09
deforestation  ecosystem services  Landsat  mangrove  Moderate Resolution Imaging Spectroradiometer  Myanmar  remote sensing  
Natural disturbances are spatially diverse but temporally synchronized across temperate forest landscapes in Europe 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (3) : 1201-1211
作者:  Senf, Cornelius;  Seidl, Rupert
收藏  |  浏览/下载：4/0  |  提交时间：2019/04/09
bark beetles  Central Europe  Ips typographus  Landsat  landscape analysis  natural disturbance  temperate forests  topography  windthrow  
Measuring canopy loss and climatic thresholds from an extreme drought along a fivefold precipitation gradient across Texas 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (12)
作者:  Schwantes, Amanda M.;  Swenson, Jennifer J.;  Gonzalez-Roglich, Mariano;  Johnson, Daniel M.;  Domec, Jean-Christophe;  Jackson, Robert B.
收藏  |  浏览/下载：11/0  |  提交时间：2019/04/09
change detection  climate change  disturbance  extreme event  forest die-off  random forests  tree mortality  vapor pressure deficit  
Multidate, multisensor remote sensing reveals high density of carbon-rich mountain peatlands in the paramo of Ecuador 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (12)
作者:  Hribljan, John A.;  Suarez, Esteban;  Bourgeau-Chavez, Laura;  Endres, Sarah;  Lilleskov, Erik A.;  Chimbolema, Segundo;  Wayson, Craig;  Serocki, Eleanor;  Chimner, Rodney A.
收藏  |  浏览/下载：10/0  |  提交时间：2019/04/09
carbon  mountain  multidate SAR  paramo  peatland  tropics  
Leaf chlorophyll content as a proxy for leaf photosynthetic capacity 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (9)
作者:  Croft, Holly;  Chen, Jing M.;  Luo, Xiangzhong;  Bartlett, Paul;  Chen, Bin;  Staebler, Ralf M.
收藏  |  浏览/下载：8/0  |  提交时间：2019/04/09
carbon cycle  ecosystem modelling  Jmax  leaf nitrogen  remote sensing  Vcmax