Automated Construction Method of Polygonal Blocks for an Urban Watershed

Tanouchi, Hiroto; Amaguchi, Hideo; Kawamura, Akira; Koga, Tatsuya; Hagiwara, Yousuke

doi:10.3178/jjshwr.28.298

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The construction of urban landscape GIS data currently requires time-consuming manual work using GIS software (ArcGIS 10) [129]. Therefore, research has been conducted on automating urban landscape GIS delineation [130,131]. In addition, current GIS data only represent the planar structure of ground surface objects, and thus cannot represent the three-dimensional structure of subways, underground road tunnels, and the multilevel intersections of roads and bridges, as well as buildings, especially high-rise buildings.…”

Section: Urban Landscape Gis Delineationmentioning

confidence: 99%

Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects

Kawamura

Amaguchi

Olsson

et al. 2023

Water

Self Cite

View full text Add to dashboard Cite

Since the 20th century, Japan has experienced a period of very rapid urbanization. Cities have experienced substantial densification and expansion, resulting in gradually elevated flood risk. Urban flooding has also occurred in most large cities in Japan, particularly in Tokyo. In response to this growing problem, much effort and resources have been spent on research and development aimed at understanding, simulating, and managing urban flood risk in Japan. The objective of this review is to summarize, discuss, and share key outputs from some of the main research directions in this field, significant parts of which have been uniquely developed in Japan and only published in Japanese. After a general introduction to urban runoff modeling, in the next section, key historical works in Japan are summarized, followed by a description of the situation in Japan with respect to observations of precipitation and water level. Then, the storage function model approach is reviewed, including an extension to urban basins, as well as recent experiments with AI-based emulation in Japanese basins. Subsequently, we review the prospects of detailed hydrodynamic modeling involving high-resolution, vector-based Geographical Information System (GIS) data for the optimal description of the urban environment with applications in Tokyo. We conclude the paper with some future prospects related to urban flood risk modeling and assessment in Japan.

show abstract

Section: Urban Landscape Gis Delineationmentioning

confidence: 99%

Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects

Kawamura

Amaguchi

Olsson

et al. 2023

Water

Self Cite

View full text Add to dashboard Cite

show abstract

Status Quo and Perspectives of Flood Runoff Analysis for Urban Watersheds

Kawamura

2018

J. Japan Soc. Hydrol. and Water Resour.

Self Cite

View full text Add to dashboard Cite

This paper outlines the current status of flood runoff analysis for urban watersheds and presents its future prospects. First, I will describe the urban flood disaster, then briefly review the history of the runoff models before explaining the current state of application of flood runoff models for urban watersheds. Next, storage function models as the lumped conceptual model are outlined, and the urban storage function (USF) model is explained. Then, the necessity of a detailed distributed physical model in urban watershed is described by explaining the difference between mesh data and the urban landscape GIS delineation. I introduce TSR model which is a precise distributed physical model utilizing the urban landscape GIS delineation. Finally, I overlook the future issues to be solved for lumped conceptual and distributed physical models as well as making some recommendations for reduction of urban flood disaster.

show abstract

Automated Construction Method of Polygonal Blocks for an Urban Watershed

Cited by 2 publications

References 0 publications

Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects

Urban Flood Runoff Modeling in Japan: Recent Developments and Future Prospects

Status Quo and Perspectives of Flood Runoff Analysis for Urban Watersheds

Contact Info

Product

Resources

About