الضوابط المناخية للجفاف و العجز المائي و الإمكانات المقترحة لمعالجتها في إقليم الساحل الشمالي الغربي في مصر : دراسة في المناخ التطبيقي

الملخص EN

The research discusses the issue of climatic controls of draught and water deficiency and the proposed possibilities to solve them in the Northwest Coast region in Egypt.

the study aims at focusing on determining the climatic controls that manage drought and water deficiency through an analytical study of the water balance, determining the quantities and places of both water surplus and deficiency in the study area, and then detecting the possible solutions to make the most profit of the surplus as well as proposals to boost development in the region.

to achieve the objectives of the research, the regional approach was used in the study of the Northwest Coast region in Egypt, and the descriptive analytical approach in studying the characteristics of climatic elements affecting drought, with analyzing the correlative relationship between climatic elements, and finally developing solutions and proposals to confront drought and water deficiency in the future.

this can be achieved through using cartographic methods, such as graphs and maps, and statistical ones, such as dispersion scales and aridity indicators, depending on the evapotranspiration calculation of the Penman and Ivanov equation, where the data used in calculating the mathematical methods of the equations of Kharrufa and Thorn Thwaite proved the predominance of drought across the region where the amount of evapotranspiration exceeds the falling rain.

eventually, solutions and treatments must be followed to avoid water deficiency, in addition to improving the pastures and preserving their biological balance, as well as directing attention of the Egyptian decision-makers to harvest rainwater and benefit from them in different developmental projects.