study of the snowmelt effects on surface and ground water in the bahar basin using remote sensing data

Authors

mahtab safari shad department of natural resource, sari agriculture and natural resource university

mahmoud habibnejad roshan

alireza ildoromi

abstract

according to recent studies, about 60 percent of surface waters and 57 percent ground waters are located in snowy zones in iran. in most areas of northern hemisphere and alpine environment areas, snow melt lead to the maximum instantaneous flow rate and is an important part of annual discharge. the present study investigated the effect of snowmelt on the surface waters and ground waters in bahar basin. daily snow cover area for 2005-2006 and 2006-2007 were determined using modis sensor. then the daily change in snow with a daily river discharge were studied during two years. the results revealed that the water from melting snow in spring, especially in april, effect the discharge and provides a considerable amount of river flow in this season. during the 2006-2007,due to increse of temperatures during the snowmelt season, compared to the 2005-2006, an increase in peak flow occurred earlier than 2005-2006. the highest water level occurred during the period 2006-2007 2.95 m, that were provided 64.89 mcm of the 286.13 mcm of water reservoir fraction. result also showed that snowmelt period matches the highest level of monthly water table.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Study of the snowmelt effects on surface and ground water in the Bahar basin using remote sensing data

According to recent Studies, about 60 percent of surface waters and 57 Percent ground waters are located in snowy zones in Iran. In most areas of northern hemisphere and alpine environment areas, snow melt lead to the maximum instantaneous flow rate and is an important part of annual discharge. The present study investigated the effect of snowmelt on the surface waters and ground waters in B...

full text

the study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media

امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...

the effects of changing roughness on the flow structure in the bends

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

on the relationship between using discourse markers and the quality of expository and argumentative academic writing of iranian english majors

the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...

15 صفحه اول

metrics for the detection of changed buildings in 3d old vector maps using als data (case study: isfahan city)

هدف از این تحقیق، ارزیابی و بهبود متریک های موجود جهت تایید صحت نقشه های قدیمی سه بعدی برداری با استفاده از ابر نقطه حاصل از لیزر اسکن جدید شهر اصفهان می باشد . بنابراین ابر نقطه حاصل از لیزر اسکنر با چگالی حدودا سه نقطه در هر متر مربع جهت شناسایی عوارض تغییر کرده در نقشه های قدیمی سه بعدی استفاده شده است. تمرکز ما در این تحقیق بر روی ساختمان به عنوان یکی از اصلی ترین عارضه های شهری می باشد. من...

My Resources

Save resource for easier access later


Journal title:
نشریه علمی - پژوهشی هیدرولوژی کاربردی

جلد ۲، شماره ۱، صفحات ۶۹-۷۸

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023