中文版 | English

在结果中检索

GSTDTAP

浏览/检索结果: 共12条，第1-10条 帮助

限定条件        
已选(0)清除 条数/页：   排序方式：
US imperiled species are most vulnerable to habitat loss on private lands 期刊论文
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT, 2020
作者:  Eichenwald, Adam J.;  Evans, Michael J.;  Malcom, Jacob W.
收藏  |  浏览/下载：6/0  |  提交时间：2020/07/02
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.


  
Beyond the park and city dichotomy: Land use and land cover change in the northern coast of Sao Paulo (Brazil) 期刊论文
LANDSCAPE AND URBAN PLANNING, 2019, 189: 352-361
作者:  Pierri Daunt, Ana Beatriz;  Freire Silva, Thiago Sanna
收藏  |  浏览/下载：1/0  |  提交时间：2019/11/27
Cloud Masking for Landsat 8 and MODIS Terra Over Snow-Covered Terrain: Error Analysis and Spectral Similarity Between Snow and Cloud 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (7) : 6169-6184
作者:  Stillinger, Timbo;  Roberts, Dar A.;  Collar, Natalie M.;  Dozier, Jeff
收藏  |  浏览/下载：8/0  |  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
Multi-year comparison of the effects of spatial pattern of urban green spaces on urban land surface temperature 期刊论文
LANDSCAPE AND URBAN PLANNING, 2019, 184: 44-58
作者:  Masoudi, Mahyar;  Tan, Puay Yok
收藏  |  浏览/下载：11/0  |  提交时间：2019/04/09
Urban green space  Spatial pattern  Comparative study  Land surface temperature  Urban heat island  Landscape metrics  
Meandering Evolution and Width Variations: A Physics-Statistics-Based Modeling Approach 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (1) : 76-94
作者:  Dubon, Sergio Lopez;  Lanzoni, Stefano
收藏  |  浏览/下载：5/0  |  提交时间：2019/04/09
Construction of the 500-m Resolution Daily Global Surface Water Change Database (2001-2016) 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (12) : 10270-10292
作者:  Ji, Luyan;  Gong, Peng;  Wang, Jie;  Shi, Jiancheng;  Zhu, Zhiliang
收藏  |  浏览/下载：5/0  |  提交时间：2019/04/09
water  water change  daily water mapping  water time series  MODIS  
A mixture emissivity analysis method for urban land surface temperature retrieval from Landsat 8 data 期刊论文
LANDSCAPE AND URBAN PLANNING, 2018, 179: 63-71
作者:  Li, Tianyu;  Meng, Qingmin
收藏  |  浏览/下载：5/0  |  提交时间：2019/04/09
Urban land surface  Heterogeneous landscape  Mixture analysis of emissivity  Landsat 8 imagery  
Analyzing horizontal and vertical urban expansions in three East Asian megacities with the SS-coMCRF model 期刊论文
LANDSCAPE AND URBAN PLANNING, 2018, 177: 114-127
作者:  Zhang, Weixing;  Li, Weidong;  Zhang, Chuanrong;  Hanink, Dean M.;  Liu, Yueyan;  Zhai, Ruiting
收藏  |  浏览/下载：5/0  |  提交时间：2019/04/09
Spatial pattern  Vertical urban expansion  Horizontal urban expansion  Urbanization footprint