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Pacific Northwest wildfires alter air pollution patterns across North America 新闻
来源平台：National Center of Atmospheric Research. 发布日期：2022
作者:  admin
收藏  |  浏览/下载：7/0  |  提交时间：2022/06/24
Water management: should we be “environmental plumbers”? 新闻
来源平台：CNRS News. 发布日期：2022
作者:  admin
收藏  |  浏览/下载：5/0  |  提交时间：2022/06/24
World's largest lakes reveal climate change trends 新闻
来源平台：EurekAlert. 发布日期：2021
作者:  admin
收藏  |  浏览/下载：1/0  |  提交时间：2021/01/28
Ocean algae get 'coup de grace' from viruses 新闻
来源平台：EurekAlert. 发布日期：2020
作者:  admin
收藏  |  浏览/下载：0/0  |  提交时间：2020/09/22
NASA's Terra Satellite reveals burn scars from California's two largest fires 新闻
来源平台：EurekAlert. 发布日期：2020
作者:  admin
收藏  |  浏览/下载：14/0  |  提交时间：2020/08/28
NASA's Aqua Satellite shows extent of Apple Fire's burn scar 新闻
来源平台：EurekAlert. 发布日期：2020
作者:  admin
收藏  |  浏览/下载：14/0  |  提交时间：2020/08/17
Algal photophysiology drives darkening and melt of the Greenland Ice Sheet 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (11) : 5694-5705
作者:  Williamson, Christopher J.;  Cook, Joseph;  Tedstone, Andrew;  Yallop, Marian;  McCutcheon, Jenine;  Poniecka, Ewa;  Campbell, Douglas;  Irvine-Fynn, Tristram;  McQuaid, James;  Tranter, Martyn;  Perkins, Rupert;  Anesio, Alexandre
收藏  |  浏览/下载：6/0  |  提交时间：2020/05/13
Greenland Ice Sheet  glacier algae  photophysiology  melt  cryosphere  
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：6/0  |  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 great Atlantic Sargassum belt 期刊论文
SCIENCE, 2019, 365 (6448) : 83-+
作者:  Wang, Mengqiu;  Hu, Chuanmin;  Barnes, Brian B.;  Mitchum, Gary;  Lapointe, Brian;  Montoya, Joseph P.
收藏  |  浏览/下载：6/0  |  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：6/0  |  提交时间：2019/11/27