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美国宣布 Landsat 2030 国际合作计划 快报文章
地球科学快报,2024年第1期
作者:  王立伟
Microsoft Word(14Kb)  |  收藏  |  浏览/下载:40/0  |  提交时间:2024/01/10
U.S. Department of the Interior  Landsat 2030 International Partnership Initiative  
美国宣布 Landsat 2030 国际合作计划 快报文章
地球科学快报,2024年第1期
作者:  王立伟
Microsoft Word(14Kb)  |  收藏  |  浏览/下载:40/0  |  提交时间:2024/01/10
U.S. Department of the Interior  Landsat 2030 International Partnership Initiative  
美国宣布 Landsat 2030 国际合作计划 快报文章
地球科学快报,2024年第1期
作者:  王立伟
Microsoft Word(14Kb)  |  收藏  |  浏览/下载:521/0  |  提交时间:2024/01/10
U.S. Department of the Interior  Landsat 2030 International Partnership Initiative  
NASA成功发射Landsat 9号卫星 快报文章
地球科学快报,2021年第19期
作者:  刘文浩
Microsoft Word(16Kb)  |  收藏  |  浏览/下载:454/0  |  提交时间:2021/10/10
NASA  Landsat 9 satellite  
The end of gunpoint conservation: forest disturbance after the Colombian peace agreement 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (3)
作者:  Murillo-Sandoval, Paulo J.;  Van Dexter, Kristina;  Van Den Hoek, Jamon;  Wrathall, David;  Kennedy, Robert
收藏  |  浏览/下载:30/0  |  提交时间:2020/07/02
Landsat  armed conflict  ethnography  peace  forest disturbance  
Monitoring forest degradation from charcoal production with historical Landsat imagery. A case study in southern Mozambique 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (1)
作者:  Sedano, F.;  Lisboa, S. N.;  Duncanson, L.;  Ribeiro, N.;  Sitoe, A.;  Sahajpal, R.;  Hurtt, G.;  Tucker, C. J.
收藏  |  浏览/下载:15/0  |  提交时间:2020/07/02
Landsat  forest degradation  charcoal  sub-Saharan Africa  remote sensing  
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:41/0  |  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.


  
Satellite-detected gain in built-up area as a leading economic indicator 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (11)
作者:  Ying, Qing;  Hansen, Matthew C.;  Sun, Laixiang;  Wang, Lei;  Steininger, Marc
收藏  |  浏览/下载:17/0  |  提交时间:2020/02/17
leading economic indicator  built-up area  anthropogenic bare ground gain  global and regional scale  the great recession  spatio-temporal dynamics  landsat  
Grizzly bear selection of recently harvested forests is dependent on forest recovery rate and landscape composition 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 449
作者:  Kearney, Sean P.;  Coops, Nicholas C.;  Stenhouse, Gordon B.;  Nielsen, Scott E.;  Hermosilla, Txomin;  White, Joanne C.;  Wulder, Michael A.
收藏  |  浏览/下载:19/0  |  提交时间:2019/11/27
Ursus arctos  Landsat  Habitat selection  Forest recovery  Forest disturbance  Time series  Spectral recovery  
Connectivity in coastal systems: Barrier island vegetation influences upland migration in a changing climate 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (7) : 2419-2430
作者:  Zinnert, Julie C.;  Via, Stephen M.;  Nettleton, Benjamin P.;  Tuley, Philip A.;  Moore, Laura J.;  Stallins, Jon Anthony
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/27
barrier island migration  coastal system  dune  Landsat  macroclimate  sea-level rise  woody expansion