2020
DOI: 10.3390/rs12091468
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Abstract: Observing wetland areas and monitoring changes are crucial to understand hydrological and ecological processes. Sedimentation-induced vegetation spread is a typical process in the succession of lakes endangering these habitats. We aimed to survey the tendencies of vegetation spread of a Hungarian lake using satellite images, and to develop a method to identify the areas of risk. Accordingly, we performed a 33-year long vegetation spread monitoring survey. We used the Normalized Difference Vegetation Index (NDV… Show more

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Cited by 20 publications
(8 citation statements)
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“…NDWI is capable of extracting water information quickly and is regarded as a low-cost implementation (Du et al, 2014). However, within only two bands, this method may always result in a large underestimation of waterbodies for shallow thaw lakes due to the weak reflectance of the green spectral band and the weak absorption of the near-infrared band for these lakes (Szabó et al, 2020;Zhao et al, 2020). In addition, the NDWI method requires a variation of threshold values in waterbody detection according to the location and time of image acquisitions (Feyisa et al, 2014;Jiang et al, 2014;Sunder et al, 2017).…”
mentioning
confidence: 99%
“…NDWI is capable of extracting water information quickly and is regarded as a low-cost implementation (Du et al, 2014). However, within only two bands, this method may always result in a large underestimation of waterbodies for shallow thaw lakes due to the weak reflectance of the green spectral band and the weak absorption of the near-infrared band for these lakes (Szabó et al, 2020;Zhao et al, 2020). In addition, the NDWI method requires a variation of threshold values in waterbody detection according to the location and time of image acquisitions (Feyisa et al, 2014;Jiang et al, 2014;Sunder et al, 2017).…”
mentioning
confidence: 99%
“…applications (Streutker, 2002;Li et al 2009;Szabó Z. et al 2019;Paramita and Matzarakis, 2019), agriculture (Atzberger, 2013), water quality monitoring (Chebud et al 2012), drought monitoring (Gulácsi and Kovács, 2018) mapping at wetlands (Szabó et al 2020;Van Leeuwen et al 2020) and erosion risk assessment (Bakacsi et al 2019;Phinzi et al 2020).…”
Section: Urban Vegetation Classification With High-resolution Planetscope and Skysat Multispectral Imagerymentioning
confidence: 99%
“…Indeed, since the rapid increase in water hyacinth can pose a severe threat to the lake environment, its management has been implemented at the provincial government level. As discussed above, the value of NDVI can be a crucial indicator to explain the state of the lake surface environment; vital information can thus be extracted for lake management [30]. Annual changes in lake extent, zonal NDVI, and the distribution of water hyacinth are shown in Figure 4.…”
Section: Changes In Lake Extent In Time-series and Estimation Of Lake Sedimentation Volumementioning
confidence: 99%
“…A variety of research studies and projects have recently been conducted at diverse scales ranging from local to watershed levels to mitigate severe lake degradation due to increased sedimentation. These include environmental management strategies, such as sedimentation and sludge management [10,14], aquatic environment management [36], watershed management [37,38], environmental assessments [7,17,32,39], and lake extent monitoring [30,40]. Technical assistance for flood mitigation has been provided in collaboration with international development agencies from, for example, Canada and Japan [7].…”
Section: Introductionmentioning
confidence: 99%