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DOI10.3390/rs16091553
Sensitivity of Sentinel-1 Backscatter to Management-Related Disturbances in Temperate Forests
van der Woude, Sietse; Reiche, Johannes; Sterck, Frank; Nabuurs, Gert-Jan; Vos, Marleen; Herold, Martin
发表日期2024
EISSN2072-4292
起始页码16
结束页码9
卷号16期号:9
英文摘要The rapid and accurate detection of forest disturbances in temperate forests has become increasingly crucial as policy demands and climate pressure on these forests rise. The cloud-penetrating Sentinel-1 radar constellation provides frequent and high-resolution observations with global coverage, but few studies have assessed its potential for mapping disturbances in temperate forests. This study investigated the sensitivity of temporally dense C-band backscatter data from Sentinel-1 to varying management-related disturbance intensities in temperate forests, and the influence of confounding factors such as radar backscatter signal seasonality, shadow, and layover on the radar backscatter signal at a pixel level. A unique network of 14 experimental sites in the Netherlands was used in which trees were removed to simulate different levels of management-related forest disturbances across a range of representative temperate forest species. Results from six years (2016-2022) of Sentinel-1 observations indicated that backscatter seasonality is dependent on species phenology and degree of canopy cover. The backscatter change magnitude was sensitive to medium- and high-severity disturbances, with radar layover having a stronger impact on the backscatter disturbance signal than radar shadow. Combining ascending and descending orbits and complementing polarizations compared to a single orbit or polarization was found to result in a 34% mean increase in disturbance detection sensitivity across all disturbance severities. This study underlines the importance of linking high-quality experimental ground-based data to dense satellite time series to improve future forest disturbance mapping. It suggests a key role for C-band backscatter time series in the rapid and accurate large-area monitoring of temperate forests and, in particular, the disturbances imposed by logging practices or tree mortality driven by climate change factors.
英文关键词Sentinel-1; C-band; forest disturbance; low-intensity; temperate; monitoring
语种英语
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号WOS:001220109100001
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/303115
作者单位Wageningen University & Research; Wageningen University & Research; Wageningen University & Research; Helmholtz Association; Helmholtz-Center Potsdam GFZ German Research Center for Geosciences
推荐引用方式
GB/T 7714
van der Woude, Sietse,Reiche, Johannes,Sterck, Frank,et al. Sensitivity of Sentinel-1 Backscatter to Management-Related Disturbances in Temperate Forests[J],2024,16(9).
APA van der Woude, Sietse,Reiche, Johannes,Sterck, Frank,Nabuurs, Gert-Jan,Vos, Marleen,&Herold, Martin.(2024).Sensitivity of Sentinel-1 Backscatter to Management-Related Disturbances in Temperate Forests.REMOTE SENSING,16(9).
MLA van der Woude, Sietse,et al."Sensitivity of Sentinel-1 Backscatter to Management-Related Disturbances in Temperate Forests".REMOTE SENSING 16.9(2024).
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