Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL081584 |
Arctic-Boreal Lake Dynamics Revealed Using CubeSat Imagery | |
Cooley, Sarah W.1,2; Smith, Laurence C.3; Ryan, Jonathan C.2; Pitcher, Lincoln H.3; Pavelsky, Tamlin M.4 | |
2019-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:4页码:2111-2120 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Fine-scale, subseasonal fluctuations in Arctic-Boreal surface water reflect regional water balance and modulate trace gas emissions to the atmosphere but have eluded detection using traditional satellite remote sensing. We use high-resolution (similar to 3-5 m), high-frequency CubeSat sensors to measure near-daily changes in lake surface area through an object-based tracking method that incorporates machine learning to overcome notable limitations of CubeSat imagery. From similar to 76,000 images we obtain >2.2 million individual observations of changing surface areas for 85,358 lakes in Northern Canada and Alaska between 1 May and 1 October 2017. We find broad-scale lake area declines across diverse climatic, hydrologic, and physiographic terrains. Localized exceptions reveal lowland flooding and aquatic vegetation phenology cycles. Cumulative small shoreline changes of abundant lakes on the Canadian Shield exceed total inundation variations of better-studied lowland environments, revealing a surprisingly dynamic landscape with respect to subseasonal variations in surface water extent and trace gas emissions. |
英文关键词 | CubeSats remote sensing Arctic-Boreal lakes arctic hydrology machine learning |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461855600024 |
WOS关键词 | MACKENZIE DELTA ; CANADIAN SHIELD ; YUKON FLATS ; DISCONTINUOUS PERMAFROST ; WATER ; HYDROLOGY ; EMISSIONS ; LANDSAT ; VARIABILITY ; RESERVOIRS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28706 |
专题 | 气候变化 |
作者单位 | 1.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA; 2.Brown Univ, Inst Brown Environm & Soc, Providence, RI 02912 USA; 3.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90024 USA; 4.Univ N Carolina, Dept Geol Sci, Chapel Hill, NC 27515 USA |
推荐引用方式 GB/T 7714 | Cooley, Sarah W.,Smith, Laurence C.,Ryan, Jonathan C.,et al. Arctic-Boreal Lake Dynamics Revealed Using CubeSat Imagery[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(4):2111-2120. |
APA | Cooley, Sarah W.,Smith, Laurence C.,Ryan, Jonathan C.,Pitcher, Lincoln H.,&Pavelsky, Tamlin M..(2019).Arctic-Boreal Lake Dynamics Revealed Using CubeSat Imagery.GEOPHYSICAL RESEARCH LETTERS,46(4),2111-2120. |
MLA | Cooley, Sarah W.,et al."Arctic-Boreal Lake Dynamics Revealed Using CubeSat Imagery".GEOPHYSICAL RESEARCH LETTERS 46.4(2019):2111-2120. |
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