Fractal Characteristic Analysis of Urban Land-Cover Spatial Patterns with Spatiotemporal Remote Sensing Images in Shenzhen City (1988–2015)

Cheng, Luxiao; Feng, Ruyi; Wang, Lizhe

doi:10.3390/rs13224640

Cited by 11 publications

(11 citation statements)

References 60 publications

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“…Considering that the FD estimate for the floodplain of the MPR corresponded to an extraordinary flood such as the one in 1983, and an average low water level in 2001, the FD value should be understood as an extreme value for each hydrological phase. The FD values obtained in this study are in agreement with those identified by Cheng et al (2021), who calculated the FD values of water bodies in Shenzhen city in different years.…”

Section: Discussionsupporting

confidence: 92%

“…Authors such as, Klinkenberg and Goodchild (1992), Mandelbrot (1983), Nikora (1991), and Zhang et al (2015) have demonstrated that the FD is connected to geomorphological complexity. However, in line with Cheng et al (2021), our study verified that FD can be calculated using the water surface area at different water levels to detect the different floodplain patterns. A key aspect of this study is that the FD parameter allowed us to spatially discretize the role of the floodplain in the hydrodynamics of the MPR and in attenuating hydrological events.…”

Section: Discussionsupporting

confidence: 90%

“…These changes associated with hydrology and channel material components have been widely studied by Amsler et al (2005), Pereira (2016), Ramonell et al (2000), Ramonell (2021), and Sobrero et al (2014). The area of a water body is a classical hydrological parameter used in flood hazard studies and in delimitating an area vulnerable to a given event (Cheng et al, 2021; Espínola et al, 2020), showing the absolute value of the flooded area. In general terms, the larger the area covered by water, the more dangerous the flood event is.…”

Section: Discussionmentioning

confidence: 99%

“…(2021), and Sobrero et al (2014). The area of a water body is a classical hydrological parameter used in flood hazard studies and in delimitating an area vulnerable to a given event (Cheng et al, 2021;Espínola et al, 2020), showing the absolute value of the flooded area.…”

Section: River Reach Citymentioning

confidence: 99%

See 3 more Smart Citations

Fractal characteristics of the middle reach of the Paraná River floodplain during extreme hydrological events

Espínola,

Yoya,

Sklar

et al. 2023

River Research & Apps

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The hydrological events that occur on floodplains are largely defined by precipitation and runoff inputs interacting with their geomorphological characteristics. In the middle Paraná River (MPR), hydrological events have traditionally been studied using water level time series and topographic charts or satellite images of certain floodplain sectors, using the same scale throughout the study area. Different zones of the floodplain were integrated using fractal dimension (FD) to better understand hydrological processes. FD is a useful tool used to characterize the geomorphological complexity of river networks in watersheds. The box‐counting method was applied in the MPR floodplain. The result showed that as water levels increase, FD decreases, thereby indicating the direct relation with the hydrological attributes of the floodplain (e.g., duration, magnitude, recurrence of the flood event, and connectivity). This relation constitutes the basis of a new approach of the analysis of hydrological events and their effect on the MPR floodplain. This research provides fundamental information obtained from two hydrological stages and different spatial scales which may complement the method designed to accurately understand the hydrogeomorphological processes that operate on the Paraná River floodplain. It provides a simple parameter that can be used to evaluate the role that each floodplain section plays in attenuating the hydrograph recorded at each gauge analyzed along the river. This information will be useful in the implementation of management policies directed to the mitigation of future hydrological threats generated by alterations in the hydrological regime due to hydroclimatic variations or watershed alterations. The results further strengthen the basis for integrated sustainable planning of the main channel of the Paraná River, its floodplain, and the resources provided by this ecosystem.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: River Reach Citymentioning

confidence: 99%

See 2 more Smart Citations

Fractal characteristics of the middle reach of the Paraná River floodplain during extreme hydrological events

Espínola,

Yoya,

Sklar

et al. 2023

River Research & Apps

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“…Shenzhen presents a “low west and high east” situation, with an elevation span of 5 m in the west to 944 m in the east. The topographic relationship determines that the urban area of Shenzhen is mostly located in the west, while eastern Shenzhen is dominated by mountains and low hills (Cheng et al., 2021).…”

Section: Study Area and Data Setsmentioning

confidence: 99%

Investigating Surface Deformation and Its Intrinsic Mechanism in Shenzhen, China Using Sentinel‐1A SAR Imagery

Zhou

Liu

et al. 2023

Earth and Space Science

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To avoid disasters caused by surface deformation in urban areas, monitoring and analyzing the mechanism of surface deformation in urban areas on a large scale and in long‐term series is mandatory. Based on PS‐InSAR technology and using 157 Sentinel‐1A images, the surface deformation in Shenzhen was monitored from 2015 to 2022, and the obtained deformation rate ranged from −22.8 to +23.2 mm/year. In this paper, analysis is presented by integrating urbanization, climate, and geology data from Shenzhen. The analysis indicates that surface deformation caused by natural factors is typically observed in regions with unique geological characteristics, such as seasonal deformation in sedimentary areas and uplift along reverse fault zones. Human factors chiefly cause subsidence, and the areas with greater subsidence are generally urbanized areas (∼10 mm/year), industrial areas (∼20 mm/year), and reclamation areas (∼15 mm/year). The deformation of the reservoir dam is subject to multiple factors. The differential subsidence of 2–8 mm/year at both ends is due to the engineering geological conditions. In comparison, the weak rotation with a linear velocity of 18 mm/year is due to hydrostatic pressure and its structural characteristics. The research results of this paper systematically explore the phenomena and the intrinsic mechanism of surface deformation in Shenzhen, providing a safety basis for urban development and emergency disaster prevention in Shenzhen.

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Maternal affective symptoms and sleep quality have sex-specific associations with placental topography

Shah,

Salafia,

Girardi

et al. 2024

Journal of Affective Disorders

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Fractal Characteristic Analysis of Urban Land-Cover Spatial Patterns with Spatiotemporal Remote Sensing Images in Shenzhen City (1988–2015)

Cited by 11 publications

References 60 publications

Fractal characteristics of the middle reach of the Paraná River floodplain during extreme hydrological events

Fractal characteristics of the middle reach of the Paraná River floodplain during extreme hydrological events

Investigating Surface Deformation and Its Intrinsic Mechanism in Shenzhen, China Using Sentinel‐1A SAR Imagery

Maternal affective symptoms and sleep quality have sex-specific associations with placental topography

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