الجغرافيا : دراسات و بحوث جغرافية: السمات المورفولوجية والخصائص المورفومترية والهيدرولوجية لأودية الحرم المكي

الاثنين، 3 أغسطس 2020

السمات المورفولوجية والخصائص المورفومترية والهيدرولوجية لأودية الحرم المكي

السمات المورفولوجية

والخصائص المورفومترية والهيدرولوجية

لأودية الحرم المكي

إعداد

د. معراج نواب مرزا

أستاذ مساعد بقسم الجغرافيا

كلية العلوم الاجتماعية

جامعة أم القرى

د. محمد سعيد البارودي

أستاذ مشارك بقسم الجغرافيا

كلية العلوم الاجتماعية

جامعة أم القرى

مجلة جامعة أم القرى للعلوم التربوية والاجتماعية والإنسانية - عدد خاص بمناسبة اختيار مكة المكرمة عاصمة للثقافة الإسلامية لعام 1426هـ / 2005م - ص ص 176 - 264:

Morphological, Morphometric, and Hydrologic Characteristics of the Valleys in Makkah Sanctuary

Dr. Meraj Nawab Mirza & Dr. Muhammad Saed Al Baroody

Makka city occupies the bottom beds of the main four valleys that constitute the Makkah sanctuary Area. As a result of this location, the holy city experienced along history of overwhelming floods that caused immense devastation and loss of lives. Despite the execution of several projects aimed at curbing and reducing flood dangers, the dangers remain. The reason behind this is the fact that project feasibility studies were based upon estimates rather than meticulous studies. Accordingly, this topic is chosen for this research to provide a glance at morphologic, morphometric, and hydrologic characteristics of the area. Based on these features it would be possible to determine flood factor, flood volume and speed. The main research objectives are:

1- To present the plain morphologic and morphometric characteristics of drainage basins that encompass the holy city.

2- To reveal the correlation between these features. 3- To determine the risk area (the most vulnerable among all) for diagnosis and for the purpose of offering solution.

To achieve the above objectives the following work plan is devised :

1- Preparation of a detail map that reveals the sanctuary valley basins depending on large scale maps and satellite images.

2- Specification of rock formation and tectonic structure and its direction because of its impact on the run off.

3- Calculation of rain volume that fall on the studied basins as this has direct relation to origin of floods.

4- Measurement of morphological features of drainage basins and relating it to morphometric characteristics to determine hydrological characteristics of area under study.