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Author | dc.contributor.author | Sanzana, P. | |
Author | dc.contributor.author | Gironás, J. | |
Author | dc.contributor.author | Braud, I. | |
Author | dc.contributor.author | Hitschfeld, N. | |
Author | dc.contributor.author | Branger, F. | |
Author | dc.contributor.author | Rodriguez, F. | |
Author | dc.contributor.author | Fuamba, M. | |
Author | dc.contributor.author | Romero, J. | |
Author | dc.contributor.author | Vargas, X. | |
Author | dc.contributor.author | Muñoz, J. F. | |
Author | dc.contributor.author | Vicuña, S. | |
Author | dc.contributor.author | Mejía, A. | |
Admission date | dc.date.accessioned | 2019-10-11T17:29:59Z | |
Available date | dc.date.available | 2019-10-11T17:29:59Z | |
Publication date | dc.date.issued | 2019 | |
Cita de ítem | dc.identifier.citation | Journal of Hydroinformatics, Volumen 21, | |
Identifier | dc.identifier.issn | 14647141 | |
Identifier | dc.identifier.other | 10.2166/hydro.2018.031 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/171218 | |
Abstract | dc.description.abstract | © IWA Publishing 2019.2D non-uniform polygonal meshes allow representation of the impact of landscape elements and small infrastructures on water flows. The initial vectorial mesh, derived from the intersection of several geographical information systems f layers, can have highly non-convex or sliver polygons. These bad-shaped elements compromise accurate numerical flow computation. We propose a flexible divide-and-conquer strategy to decompose polygons into physiographical meaningful parts using shape descriptors to better represent the surface terrain and hydrologic connectivity. We use the convexity index (CI) and the form factor (FF) to consider convex and square like optimum shapes. The strategy was applied to two peri-urban areas whose hydrologic response was simulated using distributed modeling. Good-quality meshes were generated with threshold values of CI.0.8 and FF.0.2, and CI.0.95 and FF.0.4 for undeveloped and highly urbanized zones, respectively. We concluded that the mesh | |
Lenguage | dc.language.iso | en | |
Publisher | dc.publisher | IWA Publishing | |
Type of license | dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
Link to License | dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
Source | dc.source | Journal of Hydroinformatics | |
Keywords | dc.subject | Peri-urban features | |
Keywords | dc.subject | Polygonal decomposition | |
Keywords | dc.subject | Spatial uncertainty in hydrological model | |
Keywords | dc.subject | Terrain representation | |
Título | dc.title | Decomposition of 2D polygons and its effect in hydrological models | |
Document type | dc.type | Artículo de revista | |
dcterms.accessRights | dcterms.accessRights | Acceso Abierto | |
Cataloguer | uchile.catalogador | SCOPUS | |
Indexation | uchile.index | Artículo de publicación SCOPUS | |
uchile.cosecha | uchile.cosecha | SI | |
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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile