Analysis of the effects of precipitation amounts on daily runoff in Gharesou basin in Kermanshah Province, Iran

Document Type : Research Article



Study and research on natural processes related to water including droughts and floods is necessitate for Iran. Due to difficulty to measure meteorological and hyrological elements effective on rainfall runoff processes in basins, selecting a suitable model, which is able to simulate these processes with the minimum input data, is necessary. In addition, understanding basin reaction to the precipitation amount and intensity can help water reasearchers and managers to implement approperiate measrures that reduce drought and flood damages. The main objective of this research is analysis of precipitation amount and intensity effects on rainfall runoff, and daily streamflow in Gharesou basin in Kermanshah Province (area: 5287 km2), Iran, using spatially hydrological WetSpa model. The model was applied to simulate daily runoff for about 9 years data. Results of the simulations showed a good agreement between calculated and measured hydrographs at the outlet of the basin. The model predicts the daily hydrographs with a good accuracy, 0.830 for about 6 years of calibration and 0.834 for 3 years of validation periods according to the Nash-Sutcliff efficiency criteria. Then, the model was applied to two scenarios of different amounts of precipitation in order to find the responses of the basin to them.


Main Subjects

. زینی‌وند حسین. 1389، شبیه‌سازی توزیع مکانی فرسایش خاک و رسوب در مقیاس حوضه. ششمین همایش ملی علوم و مهندسی آبخیزداری و چهارمین همایش ملی فرسایش و رسوب، دانشگاه تربیت مدرس، اردیبهشت ماه.
2. متکان علیاکبر، زینیوند حسین، بیات باقر. میرباقری بابک، و غفوری عبدالمحمد، 1390، شبیه‌سازی جریان روزانه رودخانه و تحلیل اثرات تغییر کاربری بهینه روی آن با استفاده از مدل WetSpa در محیط GIS (مطالعة موردی: حوزۀ آبریز مرک، استان کرمانشاه). مجلة سنجش از دور و GIS ایران، سال سوم، شماره دوم: 18-1.
3. مرادیپور شهین. بهرهمند عبدالرضا، زینیوند حسین، و نجفی‌نژاد علی، 1390، شبیه‌سازی توزیعی مکانی سیل با مدل هیدرولوژیکی WetSpa در حوضة آبخیز طالقان، البرز، هفتمین همایش ملی علوم و مهندسی آبخیزداری، دانشگاه صنعتی اصفهان، 7 و 8 اردیبهشت ماه.
4. Bahremand A. 2006, Simulating the effects of reforestation on floods using spatially distributed hydrologic modeling and GIS. PhD thesis of Department of Hydrology and Hydraulic Engineering, Vrije universiteity Brussel, Brussels, Belgium. 150
5. Beven K. J. 2000, Rainfall-runoff Modeling. John Willey and Sons Ltd, England. 200 pp.
6. Booij M.J. 2002, Appropriate modeling of climate change impacts of river flooding, Ph.D. thesis, Universiteit Twente, Nederland, 179 pp.  
7. De Smedt F., Liu Y.B., and Gebremeskel S. 2000, Hydrological modeling on a catchment scale using GIS and remote sensed land use information, In: Brebbia, C.A. (ed), Risk Analyses II, WIT press, Southampton, Boston, pp. 295-304.
8. Kuczera G. 1983, Improved parameter inference in catchment models.1.Evaluating parameter uncertainty. Water Resour. Res. 19(5):1151–1162.
9. Liu Y.B., and De Smedt F. 2004, WetSpa Extension, A GIS-based Hydrologic Model for Flood Prediction and Watershed Management and Erosion and Sediment Transport Simulation, Documentation and User Manual. 155 PP.
10. Liu Y.B., Gebremeskel S., De Smedt F., and Pfister L. 2003, A diffusive transport approach for flow routing in GIS-based flood modeling, Journal of Hydrology, 283,91-106.
11. Nash J.E., and Sutcliffe J.V. 1970, River flow forecasting though conceptual models. Part 1-A discussion of principles. Journal of hydrology, 10: 282-290.
12. Nurmohamed R. Naipal S. and De Smedt F. 2006, Hydrologic Modeling of the Upper Suriname River basin Using WetSpa and Arcview GIS, Journal of Spatial Hydrology, Vol.6, No.1 Spring 2006.
13. Rwetabula J. 2007, Modelling the Fate and Transport of Organic Micro-Pollutants and Phosphates in the Simiyu River and Speke Gulf (Lake Victoria), Tanzania, Department of Hydrology and Hydraulic Engineering VUB – HYDROLOGIE (52).
14. Safari A., De Smedt F., and Moreda F. 2012, WetSpa model application in the Distributed Model Intercomparison Project (DMIP2). Journal of Hydrology.
15. Wang Z., Batelaan O., and De Smedt F. 1997, Adistributed model for water and energy transfer between soil, plants and atmosphere (WetSpa), physics and chemistry of the earth, (21): 189-193.
16. Zeinivand H. 2009, Development of Spatially Distributed Hydrological WetSpa Modules for Snowmelt, Soil Erosion, and Sediment Transport. Thesis submitted in fulfilment of the requirements for the award of the degree of Doctor in de ingenieurswetenschappen (Doctor in Engineering).
17. Zeinivand H., and De Smedt F. 2009, Spatially distributed modeling of soil erosion and sediment transport at watershed scale, World Environmental & Water Resources Congress (EWRI), 17-21 May, Kansas City, USA.
18. Zeinivand H., and De Smedt F. 2010, Prediction of snowmelt floods with a distributed hydrological model using a physical snow mass and energy balance approach, Natural Hazards Journal, 54(2), pp 451-468.
Volume 1, Issue 2 - Serial Number 2
October 2014
Pages 143-152
  • Receive Date: 03 May 2014
  • Revise Date: 05 February 2015
  • Accept Date: 11 September 2014
  • First Publish Date: 23 September 2014