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Impact of Climate Change on Water Resources of zarqa river basin Jordan Gwadi case study

Impact of Climate Change on Water Resources of zarqa river basin Jordan Gwadi case study . Presented by : Lama Masalha UNESCO Amman Office 17 th July 2010 Beijing, China . The research done by Dr. Ali Naqa , Hashemite University . Amman Zarqa Basin .

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Impact of Climate Change on Water Resources of zarqa river basin Jordan Gwadi case study

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  1. Impact of Climate Change on Water Resources of zarqa river basin Jordan Gwadi case study Presented by : Lama Masalha UNESCO Amman Office 17th July 2010 Beijing, China

  2. The research done by Dr. Ali Naqa , Hashemite University

  3. Amman Zarqa Basin • Second main tributary to Jordan river • Arid and semi arid of the Mediterranean climate • 3900 km2 • 300 mm annual rainfall • There are 56 meteorological and hydrological stations with more than 200 observation wells

  4. Problems facing the basin • High development activities • Over abstraction , 100 % from the safe yield • Deterioration of water quality, wastewater plant, irrigation practices and industry practices

  5. Main objectives of the study: • Collect , analysis and evaluate the hydrological and meteorological data • Model the impact of climate scenarios using general circulation models ( GCMs) • Prepare water resources vulnerability mapping using GIS • Investigate the impact of climate change on water resources • Identify the possible adaptation measures including integrated water resources management and action plan

  6. Data collection: • Rainfall monitoring network consist 56 stations of rainfall, evaporation and runoff. • Most of the rainfall station include class A pan to measure the evaporation rate, anemometer to measure the wind speed, sunshine recorder and relative humidity sensor

  7. Hydrological stations

  8. Rainfall station:

  9. Hydrological modeling of Zarqa basin • WEAP software was used ( Water Evaluation and Planning system) • The basin was divided into five sub catchments using ArcHydrolTool with in the GIS environment

  10. Amman Zarqa Basin Model Setup under the WEAP interface:

  11. Runoff estimation for base scenario • The base scenario was implemented to take the years from 1970 to 2000 • The model use the daily precipitation (mm) • Daily evaporation ( mm)

  12. Precipitation data as shown from WEAP interface

  13. Evaporation data as shown from WEAP interface

  14. The base scenario simulation results for Amman Zarqa River Basin

  15. Monthly average simulated runoff

  16. Model calibration and validation

  17. Impact of climate change on surface runoff • HADGEM1: Hadley Center Global Climate Model, UK. • CSIROMK3: Commonwealth Scientific and Industrial Research Organization (CSIRO), Australia. • ECHAM5OM: The 5th generation of the ECHAM general circulation model, Max Planck Institute for Meteorology, Germany

  18. Results obtained for base scenarios and GCM models

  19. Results obtained from WEAP for base scenario and selected GCM scenario

  20. Runoff estimation using Wetspass

  21. Next step: • Prepare water resources vulnerability mapping taking into account the climate change factors • Propose water resources adaptation and mitigation measures to reduce the impact of climate change • Propose integrated water resources management action plan in response to climate change

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