Presenter
Mr. Abdullah Said ALkaabi, Ministry of Agriculture, Fisheries and Water Resources
Co-author(s)
Mr. Muslem Bakhit kashob, Ministry of Agriculture, Fisheries and Water Resources
Sub-theme
5. Establishing Sustainable Water Infrastructures
Topic
5-1. Exploitation and development of Nature-based Solutions in water engineering and technology
Body
Oman located at the northeast of the Arabian Banasura Within a semi-arid climatic range and high humidity. the rate of rainfall varies between 50 mm/year to 300 mm/year. The population of the Sultanate of Oman is about four million ,and most of it resides in the coastal plain. Moreover, Oman suffers from a shortage of groundwater with an average annual deficiency of 365 million m3 per year. The study area located in south Batinah coastal plain northern part of the Sultanate of Oman at lower Wadi Bani kharus catchment. The purpose : Apply groundwater flow (GMS) water balance modeling for alluvial Aquifers of Wadi Bani Kharus Catchment , addition to Assessment of groundwater alluvial aquifers Based on current and future groundwater consumption. Methodology : In this study a pre- and a post-processor (GMS) is used to interface with MODFLOW used to evaluate the Recent alluvium and ancient alluvium aquifer system of Lower wadi Bani Kharus catchment. The model has been constructed with a rectangular grid system (UTM WGS 1984, zone 40N) and it covers an area of 647 km2. Groundwater flow model were developed based on Darcey low and low of mass conversation. The conclusion :At the end of our study the GMS flow model will give predictive scenario for to evaluate the long term effect on the aquifers without any intervention. The use of modern agricultural irrigation systems and the injection of coastal Area with treated water will reduce the interference of sea water inflow to it the aquifers. To reducing discharge from the aquifer at a rate of 30 percent as a minimum to reduce the groundwater deficit in the alluvial aquifers. Also the model can evaluate salinity intrusion from the sea as well as the nitrate pollution from agriculture activity by linking the current model with GMS solute transport model.