Assessing and modeling effective environmental parameters on snow avalanche in Meigun-Shemshak road using multivariate statistical techniques
Author(s):
Abstract:
Snow avalanche is one of the snowy and mountenous areas phenomenons that may result in hazzards and irreparable problems. The objective of this study is to determine the most important effective factors in avalanche events in Meigoun-Shemshak road. Meigoun- Shemshak road has been located in Shemshak drainage basin with area of 37.75 Km2 in Roodbar Ghasran district, Shemiranat County, Northeast Tehran. To assest avalanche corridors, effective enviromental parameters on avalanche including length of valley, width of valley, azimuth, slope percentage, valley curvature coefficient, elevation, clay, silt, sand, roughness coefficient, vegetation and rock cover percentage, precipitation, temperature and snow were determined. In the studied area, three types of valley were identified: ephemeral avalanche valley, permanent avalanche valley, without avalanche valley. The enviromental parameters comparison between ephemeral avalanche valley and permanent avalanche valley showed that slope percentage, roughness coefficient, clay, silt, sand, vegetation and rock cover percentage are significant in the valleys and also in comparison between the sections of them only valley curvature coefficient was significant. In comparison between three types of valleys, parameters: Azimuth, valley curvature coefficient, slope percentage, surface roughness, vegetation and rock cover percentage were significant. The results of comparison between sections of the three types showed valley curvature coefficient was the significant parameter. The most important parameters affecting the avalanche are Azimuth and surface roughness coefficient.
Keywords:
Language:
Persian
Published:
Iranian Journal of Eco Hydrology, Volume:6 Issue: 1, 2019
Pages:
89 to 98
magiran.com/p1949140
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!