Rapid urban flood damage assessment using high resolution remote sensing data and an object-based approach

Jiménez-Jiménez, Sergio Iván; Ojeda-Bustamante, Waldo; Ontiveros-Capurata, Ronald Ernesto; Marcial-Pablo, Mariana de Jesús

doi:10.1080/19475705.2020.1760360

Cited by 41 publications

(19 citation statements)

References 53 publications

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“…UAV sensors can acquire surface landscape data which is needed to model the urban surface runoff within a city for analysis. The strength of our analysis is that we acquired a 0.09 m resolution orthogonal projection and 0.09 m vertical resolution digital surface model (DSM) of the entire urban study area through the UAV [15].…”

Section: Methodsmentioning

confidence: 99%

Highly Resolved Runoff Path Simulation Based on Urban Surface Landscape Layout for Sub-Catchment Scale

Bai

Borowiak

Yan-ru

et al. 2021

Water

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The present study explored the regularities of the path and network structure of surface runoff formed under the influence of urban surface landscapes. We used unmanned aerial vehicle sensors to examine terrain and land use/cover change. The sub-catchments of a typical city, Luohe, China, were evaluated for the effect of landscape on surface runoff. Landscape and topographic parameters from 166 urban sub-catchments in Luohe were obtained by measuring digital surface models and orthophoto maps. The minimum cumulative resistance model was used to simulate potential runoff and 491,820 potential runoff paths, connected upstream and downstream, were obtained in 166 sub-catchments. The chi-square test was used to compare simulation runoff paths and actual runoff depth, with the results showing that they led to the same distribution trend. When the gravity coefficient was greater than 18.93, path disconnection occurred among 166 sub-catchments, with a decrease in channels. The potential runoff distribution appeared in aggregation; as the gravity coefficient increased from low to high, aggregation showed a trend of increasing initially but subsequently decreasing. The initial runoff formed sub-catchments with high gravity coefficients, then accumulated and spread to the others. It is important that proper measures are taken to establish a unified planning of the city’s surface landscape in order to produce suitable surface runoff distribution.

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Section: Methodsmentioning

confidence: 99%

Highly Resolved Runoff Path Simulation Based on Urban Surface Landscape Layout for Sub-Catchment Scale

Bai

Borowiak

Yan-ru

et al. 2021

Water

View full text Add to dashboard Cite

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“…The use of UAVs to assess urban damage in emergency situations after natural disasters such as floods [83], tornadoes and hurricanes [84] and earthquakes [85], has also proved to be very useful because of the feasibility of remote sensing for search and rescue tasks and estimates of material and economic losses [86].…”

Section: Critical Literature Reviewmentioning

confidence: 99%

A Critical Review of Unmanned Aerial Vehicles (UAVs) Use in Architecture and Urbanism: Scientometric and Bibliometric Analysis

et al. 2021

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In recent years the use of UAVs (Unmanned aerial vehicles) have proliferated in the civil sector for purposes such as search and rescue, remote sensing or real-time monitoring of road traffic, among others. In the architecture, engineering and construction fields (AEC) UAVs have demonstrated to be an ideal technology due to their optimal performance in terms of time, precision, safety and cost. Given the rapid growth of interest in this technology, this research presents a critical review of the literature on the use of UAVs in architecture and urbanism to define the most widely used techniques and delimit the fields of application based on the experimentation published by the scientific community. A scientific mapping was carried out in two stages using the VOSviewerTM software: a scientometric and a bibliometric analysis. This technique allowed us to analyse a large body of literature and bibliographic data to obtain trends, patterns and directions of this domain of knowledge. Then, a literature review was presented, highlighting the relevant information identified in the previous analysis. The fields of application of UAVs were delimited and the most commonly used payload types and the most appropriate post-processing techniques were specified, depending on the aerial mission objective. The fields of application identified included different techniques related to the generation of 3D models, land mapping, construction site monitoring, building surveying to detect structural damage and energy losses and urban remote sensing. The literature review showed that UAVs provide a useful multi-tasking tool at any stage of an architectural project. These techniques can be applied to buildings or public spaces from the design and construction processes when the project is initiated to the later stages of maintenance and inspection of the building during its life cycle.

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“…For example, the World View constellation provides panchromatic imagery with 0.30-m spatial resolution every 1–4 days, and historical data for the study area are available from 2014 on (World View-3). VHR satellite datasets have largely been applied in planning and natural hazard monitoring [22] , [23] . New algorithms to enhance the spatial resolution to 0.15 m in panchromatic imagery have recently been developed and ensure even better detection of ground features [24] .…”

Section: Limitsmentioning

confidence: 99%

Method for fluvial and pluvial flood risk assessment in rural settlements

et al. 2021

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Flood risk assessments in the Global South have increased since the adoption of the United Nations Sendai Framework for Disaster Risk Reduction 2015–2030. However, they often fail to meet disaster risk reduction needs at the local scale, because they typically consider only one hazard (fluvial or pluvial floods). Furthermore, hazard and exposure are considered as stationary conditions, flood-prone assets are rarely identified, risk reduction measures are not identified in detail for specific locations, and the convenience of reducing or accepting risk is not evaluated. This paper describes a flood risk assessment method that is innovative in that it considers three hazard types (backwater, fluvial, and pluvial floods) and multiple risk scenarios; it uses orthophotos generated from images captured by an unmanned aerial vehicle and very high-resolution satellite images, and it involves communities in risk assessment. The method was applied to four rural settlements along the Sirba River, Niger. The assessment identifies the benefit of reducing risk in monetary terms, as well as the intangible benefits that reducing risk could generate, and it detects opportunities that flooding offers for rural development. The method can be replicated in all contexts where decision-making support is needed for flood risk assessment planning. Risk analysis and evaluation is participatory. Risk assessment is improved by combining local and technical knowledge. Assets are identified using very-high-resolution satellite and drone images.

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Rapid urban flood damage assessment using high resolution remote sensing data and an object-based approach

Cited by 41 publications

References 53 publications

Highly Resolved Runoff Path Simulation Based on Urban Surface Landscape Layout for Sub-Catchment Scale

Highly Resolved Runoff Path Simulation Based on Urban Surface Landscape Layout for Sub-Catchment Scale

A Critical Review of Unmanned Aerial Vehicles (UAVs) Use in Architecture and Urbanism: Scientometric and Bibliometric Analysis

Method for fluvial and pluvial flood risk assessment in rural settlements

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