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DOI | 10.3390/rs11141718 |
Remote Sensing of Lake Ice Phenology across a Range of Lakes Sizes, ME, USA | |
Zhang, Shuai; Pavelsky, Tamlin M. | |
发表日期 | 2019 |
EISSN | 2072-4292 |
卷号 | 11期号:14 |
英文摘要 | Remote sensing of ice phenology for small lakes is hindered by a lack of satellite observations with both high temporal and spatial resolutions. By merging multi-source satellite data over individual lakes, we present a new algorithm that successfully estimates ice freeze and thaw timing for lakes with surface areas as small as 0.13 km(2) and obtains consistent results across a range of lake sizes. We have developed an approach for classifying ice pixels based on the red reflectance band of Moderate Resolution Imaging Spectroradiometer (MODIS) imagery, with a threshold calibrated against ice fraction from Landsat Fmask over each lake. Using a filter derived from the Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2) surface air temperature product, we removed outliers in the time series of lake ice fraction. The time series of lake ice fraction was then applied to identify lake ice breakup and freezeup dates. Validation results from over 296 lakes in Maine indicate that the satellite-based lake ice timing detection algorithm perform well, with mean absolute error (MAE) of 5.54 days for breakup dates and 7.31 days for freezeup dates. This algorithm can be applied to lakes worldwide, including the nearly two million lakes with surface area between 0.1 and 1 km(2). |
WOS研究方向 | Remote Sensing |
来源期刊 | REMOTE SENSING |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/100262 |
作者单位 | Univ N Carolina, Dept Geol Sci, 104 South Rd, Chapel Hill, NC 27599 USA |
推荐引用方式 GB/T 7714 | Zhang, Shuai,Pavelsky, Tamlin M.. Remote Sensing of Lake Ice Phenology across a Range of Lakes Sizes, ME, USA[J],2019,11(14). |
APA | Zhang, Shuai,&Pavelsky, Tamlin M..(2019).Remote Sensing of Lake Ice Phenology across a Range of Lakes Sizes, ME, USA.REMOTE SENSING,11(14). |
MLA | Zhang, Shuai,et al."Remote Sensing of Lake Ice Phenology across a Range of Lakes Sizes, ME, USA".REMOTE SENSING 11.14(2019). |
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