Study and recognition of erosion characteristics of perennial and ephemeral rivers in Tehran province
Journal Title: International Journal of Fundamental Physical Sciences - Year 2018, Vol 8, Issue 1
Abstract
In the current study, at the first step, the hydrographic net of province rivers was provided based on topography map and hydrographic net from Tamab Company of Iran. Based on these definitions, the whole of Tehran province area was divided into 5 different areas. Based on these definitions, the whole of Tehran province area was divided into 25 different areas. In this study, the areas comprise 415 streams, and long in about 3038 part that 55.5% area had low sensitive to erosion, 49.82 % area had moderate to erosion and 44.63% area had highly sensitive to erosion. Based on the geological study (Alluvial- Stone), 64.72% of the area was categorized in alluvial class and 35.28% area was categorized in stone class. Based on sediments concentration, 26.61% area ranked in low concentration class, 17.05% area was ranked in moderate concentration class and finally, 57.34% area was ranked in high concentration class. Finally, it in view of bed- marginal erosion, about 63.9% were grouped in marginal erosion class and about 36.10% was grouped in bed erosion class.
Authors and Affiliations
Rahman Sharifi *, Kheirollah Norouzi
Keywords
Related Articles
- EP ID EP599249
- DOI 10.14331/ijfps.2018.330111
- Views 75
- Downloads 0
Palchoudhury Gas Theory and Role of Heat Engine
View Palchoudhury gas theory is capable of describing the function of a heat engine. The capacity of a heat engine can be measured in two ways. (1) The product of pressure and inner surface area (2) The product of...
Intra-Cavity Loss Element Method for Measurement of the Small Signal Gain of a TEA CO2 Laser
The small-signal gain coefficient of a TEA CO2 laser has been measured through the implementation of a variable polarization intra-cavity loss element. Charging voltage dependence of the gain property of the laser has be...
A Modification In Behavior of Gases
Wave nature is a form of heat energy. Call it as heat energy wave. Heat energy wave holds some force which takes a great effect on the outer surface of molecules as well as takes effect in the behavior of gases. H...
Lead Poisoning and Measurement of Body Burdens of Lead: A Perspective
The measurement of lead in archaeological bone forms the basis for providing insight into ancient societies, including disease, lifestyle and eating habits. It is sometimes asserted that in the 5th century AD lead toxici...
Silicone -Polyester Blended Coatings for Corrosion Protection
Corrosion can be protected by the application of protective coatings developed by organic resins. Metal lose due to corrosion affects a country economic to a higher extent. Organic coating is the cheapest method to...