DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL

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Presentation transcript:

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL BY: GADOUALI FOUAD (MOROCCO) AlAA MOTAR SHAYIA (IRAQ) KINGSLEY OGBU (NIGERIA) Fourth Workshop on Water Resources in Developing Countries: Hydroclimate Modeling and Analysis Tools 12-23 JUNE 2017

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL STUDY AREA ABOUREGRAG BASIN AREA IS 9566 Km²

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL PROJECT OBJECTIVE: 1-Discharge simulation using the Chym for 1 year 2-Evaluation of Chym in flooding case study (29-11-2014 Morocco) Input rainfall fields TRMM and PERSIANN were not ready to use for 2000-2005 After many simulations we decide to run the model for 1 year period (2002)

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL DATASET -Observed data: Daily flow discharge and precipitation from 2 rain gauges Aguibat azziar Ras elfatiha -Simulated data: Chym model resolution: spatial 1km-temporal 1hour Static fields: DEM, drainage area Dynamic fields: Daily flow discharge, water available for run-off …

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL RESULTS: Static fields: DEM:world90m The best representation DEM:1km DEM:Italy 90m

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL Dynamic fields: ! ?

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL ! ? ! ?

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL PERSIANN Precipitation 30-04-2002 Mountains

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL Date OH SJ RF TS LC AZ SMC AL SMBA 26/04/2002 27/04/2002 28/04/2002 29/04/2002 30/04/2002 2 01/05/2002 3 02/05/2002 Satellite products TRMM, PERSIANN exhibit lower performance over and nearby mountains

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL Case study 29-11-2014: from 25-11-2014 to 29-11-2014 More than 10mm/h

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL Case study 29-11-2014 Daily PERSIANN-CCS 28-11-2014

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL Case study 29-11-2014 Animation of the simulated flow discharge From 25-11-2014 to 29-11-2014

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL Case study 29-11-2014 More than 8000m3/s

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL Conclusion and perspective -Chym was able to reproduce the intra-annuel variability of the flow discharge over the basin, -The overestimation of the flow discharge exhibited by Chym was due to non accurate precipitation input -The most appropriate DEM for the ABOUREGRAG watershed was the world 90m DEM - -the flood event case study was well reproduced by the Chym model -The Chym model need to be run by accurate observations and to be calibrated for the basin proprieties

DISCHARGE SIMULATION OF ABOUREGRAG- MOROCCO WATERSHED USING ChyM MODEL Thank you for your attention Special thanks to Fabian and Adriano