Identification runoff source area in Tropical watershed
Models are needed to describe how nonpoint source area of a watershed affect the rainfall-runoff process in tropical region, yet little spatially distributed data exist to develop such models. Hence, a coupled GIS-event base storm runoff model in a variable source area is developed. The model...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/5594/1/4.pdf |
| _version_ | 1825943891779518464 |
|---|---|
| author | Heshmatpoor, Ali Sulaiman, Wan Nor Azmin Zakaria, Mohamad Pauzi Idris, Azni |
| author_facet | Heshmatpoor, Ali Sulaiman, Wan Nor Azmin Zakaria, Mohamad Pauzi Idris, Azni |
| author_sort | Heshmatpoor, Ali |
| collection | UPM |
| description | Models are needed to describe how nonpoint source area of a watershed affect the
rainfall-runoff process in tropical region, yet little spatially distributed data exist to
develop such models. Hence, a coupled GIS-event base storm runoff model in a variable
source area is developed. The model use grid-formatted map data supported by the
Geographical Information System (GIS) and generates distributed results for runoff
depth, discharge and coefficient of saturated area fraction. The GIS grid-based distributed
CN-VSA method was evaluated for two (W1= 2.29 Km2
, W2 = 0.88 Km2
) small
watersheds located in tropical region in Malaysia. The average Nash-Sutcliffe (1970)
efficiency for predicting saturated area fraction and runoff within and outlet of the
watershed (W1) using verification between observed and model simulated data for fifteen
storm events were (R2
=0.99) and (R2
=0.86), respectively. Coefficients indicated a good
efficiency for model prediction. Since, the model proposed was found to be suitable for
prediction of saturated area fraction (Af) and sources area of runoff, the proposed model
was applied for unmonitored sub-watersheds W11, W12, W13 (of watershed W1) and
watershed W2, respectively. |
| first_indexed | 2024-03-06T07:07:22Z |
| format | Conference or Workshop Item |
| id | upm.eprints-5594 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:07:22Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | upm.eprints-55942015-01-07T05:12:37Z http://psasir.upm.edu.my/id/eprint/5594/ Identification runoff source area in Tropical watershed Heshmatpoor, Ali Sulaiman, Wan Nor Azmin Zakaria, Mohamad Pauzi Idris, Azni Models are needed to describe how nonpoint source area of a watershed affect the rainfall-runoff process in tropical region, yet little spatially distributed data exist to develop such models. Hence, a coupled GIS-event base storm runoff model in a variable source area is developed. The model use grid-formatted map data supported by the Geographical Information System (GIS) and generates distributed results for runoff depth, discharge and coefficient of saturated area fraction. The GIS grid-based distributed CN-VSA method was evaluated for two (W1= 2.29 Km2 , W2 = 0.88 Km2 ) small watersheds located in tropical region in Malaysia. The average Nash-Sutcliffe (1970) efficiency for predicting saturated area fraction and runoff within and outlet of the watershed (W1) using verification between observed and model simulated data for fifteen storm events were (R2 =0.99) and (R2 =0.86), respectively. Coefficients indicated a good efficiency for model prediction. Since, the model proposed was found to be suitable for prediction of saturated area fraction (Af) and sources area of runoff, the proposed model was applied for unmonitored sub-watersheds W11, W12, W13 (of watershed W1) and watershed W2, respectively. 2009 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/5594/1/4.pdf Heshmatpoor, Ali and Sulaiman, Wan Nor Azmin and Zakaria, Mohamad Pauzi and Idris, Azni (2009) Identification runoff source area in Tropical watershed. In: Postgraduate Qolloquium Semester 1 2009/2010, 26-29 Oct. 2009, Faculty of Environmental Studies, Universiti Putra Malaysia. . |
| spellingShingle | Heshmatpoor, Ali Sulaiman, Wan Nor Azmin Zakaria, Mohamad Pauzi Idris, Azni Identification runoff source area in Tropical watershed |
| title | Identification runoff source area in Tropical watershed |
| title_full | Identification runoff source area in Tropical watershed |
| title_fullStr | Identification runoff source area in Tropical watershed |
| title_full_unstemmed | Identification runoff source area in Tropical watershed |
| title_short | Identification runoff source area in Tropical watershed |
| title_sort | identification runoff source area in tropical watershed |
| url | http://psasir.upm.edu.my/id/eprint/5594/1/4.pdf |
| work_keys_str_mv | AT heshmatpoorali identificationrunoffsourceareaintropicalwatershed AT sulaimanwannorazmin identificationrunoffsourceareaintropicalwatershed AT zakariamohamadpauzi identificationrunoffsourceareaintropicalwatershed AT idrisazni identificationrunoffsourceareaintropicalwatershed |