Methodology for the development of 3D GIS models in the Coastal Zone

Magarotto, Mateus; Costa, Mônica F.; Tenedório, José António; Silva, Carlos P.

doi:10.2112/si70-081.1

Cited by 10 publications

(5 citation statements)

References 16 publications

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“…Future research on this approach that combines LULC change trajectory analysis and spatial pattern metrics needs to focus on analysing to what extent the quantitative and analytical results of LULC change detection are affected using multitemporal and multi-resolution imagery as data sources. It should also focus on enriching this approach with the creation of new spatial pattern metrics based on 3D data [59] that may improve our understanding of LULC changes that occur in very dynamic areas [60,61]…”

Section: Discussionmentioning

confidence: 99%

Coastal Land-Use and Land-Cover Change Trajectories: Are They Sustainable?

Deus

Tenedório

2021

Sustainability

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In this study, past and current land-use and land-cover (LULC) change trajectories between 1947 and 2018 were analysed in terms of sustainability using a unique set of nine detailed, high-precision LULC thematic maps for the municipality of Portimão (Algarve region), Portugal. Several Geographic Information System (GIS)-based spatial analysis techniques were used to process LULC data and assess the spatiotemporal dynamics of LULC change processes. The dynamics of LULC change were explored by analysing LULC change trajectories. In addition, spatial pattern metrics were introduced to further investigate and quantify the spatial patterns of such LULC change trajectories. The findings show that Portimão has been experiencing complex LULC changes. Nearly 52% of the study area has undergone an LULC change at least once during the 71-year period. The analysis of spatial pattern metrics on LULC change trajectories confirmed the emergence of more complex, dispersed, and fragmented shapes when patches of land were converted from non-built categories into artificial surface categories from 1947 to 2018. The combined analysis of long-term LULC sequences by means of LULC change trajectories and spatial pattern metrics provided useful, actionable, and robust empirical information that can support sustainable spatial planning and smart growth, which is much needed since the results of this study have shown that the pattern of LULC change trajectories in Portimão municipality has been heading towards unsustainability.

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Section: Discussionmentioning

confidence: 99%

Coastal Land-Use and Land-Cover Change Trajectories: Are They Sustainable?

Deus

Tenedório

2021

Sustainability

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“…Last but not least, the current study on modeling the urban greenness considers the two-dimensional scope only. There are several studies that have focused on 3D perspective by taking point cloud data and 3D GIS modeling to explore vertical structure in urban vegetation distribution [11,42,43]. Those studies rely on more complicated data collection such as LiDAR sensors and provide a different view on the urban vegetation pattern, which deserves future attention by integrating the 3D data and the proposed Frag modeling.…”

Section: Further Improvementmentioning

confidence: 99%

“…Applications of remote sensing technology have facilitated mapping urban vegetation over large areas [10]. Urban vegetation can be mapped not only from two-dimensional perspective using spectral sensors [10] but also from three-dimensional (3D) view via LiDAR sensors [10,41] or 3D GIS modeling [11,42,43]. To the best of our knowledge, no single indicator can simultaneously measure the abundance and fragmentation of urban vegetation cover.…”

Section: Introductionmentioning

confidence: 99%

Assessing Urban Greenness Fragmentation and Analysis of Its Associated Factors: A Case Study in Wuhan Metropolitan Area, China

Fang

Sha

Wang

et al. 2021

IJGI

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Green vegetation plays a vital role in urban ecosystem services. Rapid urbanization often tends to induce urban vegetation cover fragmentation (UVCF) in cities and suburbs. Mapping the changes in the structure (aggregation) and abundance of urban vegetation cover helps to make improved policies for sustainable urban development. In this paper, a new distance-based landscape indicator to UVCF, Frag, was proposed first. Unlike many other landscape indicators, Frag measures UVCF by considering simultaneously both the structure and abundance of vegetation cover at local scales, and thus provides a more comprehensive perspective in understanding the spatial distribution patterns in urban greenness cover. As a case study, the urban greenness fragmentation indicated by Frag was demonstrated in Wuhan metropolitan area (WMA), China in 2015 and 2020. Support vector machine (SVM) was then designed to examine the impact on the Frag changes from the associated factors, including urbanization and terrain characteristics (elevation and slope). The Frag changes were mapped at different scales and modeled by SVM from the selected factors, which reasonably explained the Frag changes. Sensitivity analysis for the SVM model revealed that urbanization showed the most dominant factor for the Frag changes, followed by terrain elevation and slope. We conclude that Frag is an effective scale-dependent indicator to UVCF that can reflect changes in the structure and abundance of urban vegetation cover, and that modeling the impact of the associated factors on UVCF via the Frag indicator can provide essential information for urban planners.

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“…The use of 3D GIS has been limited to urban planning and visualization via city models (Zhang et al, 2004;Zlatanova et al, 2002) until recently, but new developments in computer technologies have expanded its limits. Several studies have investigated and integrated 3D components in their GIS, in terms of spatial, semantics and analysis (Magarotto et al, 2014;Jihui et al, 2016;Wang et al, 2015;Huang et al, 2016;Scianna, 2013;Landeschi et al, 2016;Hu et al, 2015;Li et al, 2015). Wate et al (2013) have emphasized the importance of true 3D GIS functionality such as efficient querying 3D geo-objects, 3D analyses (3D overlay, 3D buffering, 3D shortest route), 3D inter-visibility in their study.…”

Section: Introductionmentioning

confidence: 99%

A 3d Campus Application Based on City Models and Webgl

Buyukdemircioglu

Kocaman

2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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<p><strong>Abstract.</strong> In parallel with the technological developments, the conventional ways of mapping and the presentation of the geospatial data have changed significantly. 3D city models including the digital terrain models (DTMs) have become important for many application fields, such as simulation and visualization tasks for navigation, urban planning, environmental monitoring, disaster management, etc. Although currently most 3D city models are employed for visualization purposes, their application areas are increasing continuously. The presentation of these models on the web is also becoming more common than before while overcoming the performance issues with newer data types and functionalities. The biggest advantage of using web browsers is that they can be accessed everywhere without any additional software requirements. Therefore, the tools for web-based implementations of virtual globes, which allow users to navigate their data in 3D, have been available with greater numbers of functionality they offer. Online virtual web globes provide a good base for the 3D Geographical Information System (GIS) applications as well. 3D city models have also become virtual environments where different spatial queries and analysis can be performed. As a part of a 3D WebGIS, a city model enriched with semantic information provides a virtual platform for decision makers and allows realistic simulations for planning. The main aims of this study are to develop a prototype of a 3D GIS environment for Hacettepe University Beytepe campus, including 3D building geometries enriched with semantic information and a high resolution DTM; and to design a web interface using an open source virtual globe.</p>

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Methodology for the development of 3D GIS models in the Coastal Zone

Cited by 10 publications

References 16 publications

Coastal Land-Use and Land-Cover Change Trajectories: Are They Sustainable?

Coastal Land-Use and Land-Cover Change Trajectories: Are They Sustainable?

Assessing Urban Greenness Fragmentation and Analysis of Its Associated Factors: A Case Study in Wuhan Metropolitan Area, China

A 3d Campus Application Based on City Models and Webgl

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