3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object
With the enhancement of the current GIS data model into a 3D dynamic simulation form, the importance of urban runoff mechanism could be visualized significantly. Such enhancement provides a valuable step for urban runoff modelers by visualizing complex streamflow routing, overland flow, channel fl...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | en |
| Published: |
Faculty of Social Sciences and Humanities, UKM,Bangi
2012
|
| Online Access: | http://journalarticle.ukm.my/5520/1/artikel11.pdf http://journalarticle.ukm.my/5520/ http://www.ukm.my/geografia/v2/index.php? |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1831355525502074880 |
|---|---|
| author | Izham Mohamad Yusoff, Main Rindam, |
| author_facet | Izham Mohamad Yusoff, Main Rindam, |
| author_sort | Izham Mohamad Yusoff, |
| building | Tun Sri Lanang Library |
| collection | Institutional Repository |
| content_provider | Universiti Kebangsaan Malaysia |
| content_source | UKM Journal Article Repository |
| continent | Asia |
| country | Malaysia |
| description | With the enhancement of the current GIS data model into a 3D dynamic simulation form, the importance of urban
runoff mechanism could be visualized significantly. Such enhancement provides a valuable step for urban runoff
modelers by visualizing complex streamflow routing, overland flow, channel flow routing and runoff volume
coverage information. Inclusion of Volumetric Soft Geo-objects (VSG) offers substantial effort towards representing
3D dynamic simulation of overland flow volume that hits the urban flood-plain areas, estimating channel flow
capacity, routing and diversions to reduce urban flood disaster. The VSG are driven by a Kinematic Wave Routing
and Green-Ampt method for simulating open channel flow and overland flow volume respectively using HEC-HMS
hydrologic model. Basin model, sub-basin, reach and junction elements are extracted from Digital Elevation Model
(DEM) with 5 meter resolution using HEC-GeoHMS programme within ArcView GIS software and HEC-HMS
model. The comparison of simulated discharge volume using VSGs with observed 10 minutes interval discharge
volume gave a reading of R2 = 0.88 and a Nash-Sutcliffe coefficient of 0.82. Such 3D VSG visualization is useful in
predicting potential location of flood disaster, landslide high risk spots, and informative. It is also valued as a
realistic and sustainable hydrologic impact management instrument by contemporary GIS practitioners including
hydrologists, environmentalists, town planners and other relevant scientists. |
| format | Article |
| id | my-ukm.journal-5520 |
| institution | Universiti Kebangsaan Malaysia |
| language | en |
| publishDate | 2012 |
| publisher | Faculty of Social Sciences and Humanities, UKM,Bangi |
| record_format | eprints |
| spelling | my-ukm.journal-55202016-12-14T06:38:42Z http://journalarticle.ukm.my/5520/ 3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object Izham Mohamad Yusoff, Main Rindam, With the enhancement of the current GIS data model into a 3D dynamic simulation form, the importance of urban runoff mechanism could be visualized significantly. Such enhancement provides a valuable step for urban runoff modelers by visualizing complex streamflow routing, overland flow, channel flow routing and runoff volume coverage information. Inclusion of Volumetric Soft Geo-objects (VSG) offers substantial effort towards representing 3D dynamic simulation of overland flow volume that hits the urban flood-plain areas, estimating channel flow capacity, routing and diversions to reduce urban flood disaster. The VSG are driven by a Kinematic Wave Routing and Green-Ampt method for simulating open channel flow and overland flow volume respectively using HEC-HMS hydrologic model. Basin model, sub-basin, reach and junction elements are extracted from Digital Elevation Model (DEM) with 5 meter resolution using HEC-GeoHMS programme within ArcView GIS software and HEC-HMS model. The comparison of simulated discharge volume using VSGs with observed 10 minutes interval discharge volume gave a reading of R2 = 0.88 and a Nash-Sutcliffe coefficient of 0.82. Such 3D VSG visualization is useful in predicting potential location of flood disaster, landslide high risk spots, and informative. It is also valued as a realistic and sustainable hydrologic impact management instrument by contemporary GIS practitioners including hydrologists, environmentalists, town planners and other relevant scientists. Faculty of Social Sciences and Humanities, UKM,Bangi 2012-08 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/5520/1/artikel11.pdf Izham Mohamad Yusoff, and Main Rindam, (2012) 3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object. Geografia : Malaysian Journal of Society and Space, 8 (5). pp. 124-139. ISSN 2180-2491 http://www.ukm.my/geografia/v2/index.php? |
| spellingShingle | Izham Mohamad Yusoff, Main Rindam, 3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object |
| title | 3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object |
| title_full | 3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object |
| title_fullStr | 3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object |
| title_full_unstemmed | 3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object |
| title_short | 3D GIS urban runoff mechanism: A new perspective using volumetric soft geo-object |
| title_sort | 3d gis urban runoff mechanism: a new perspective using volumetric soft geo-object |
| url | http://journalarticle.ukm.my/5520/1/artikel11.pdf http://journalarticle.ukm.my/5520/ http://www.ukm.my/geografia/v2/index.php? |
| url_provider | http://journalarticle.ukm.my/ |