Results 21 to 30 of about 1,212 (134)

Assessment of Land Use Changes in GhareGheshlagh Wetland Using Remote Sensing [PDF]

open access: yes, 2021
GharehGheshlagh wetland is one of the most important wetlands in Iran in terms of having a variety of plant and animal species especially birds. In recent years, agricultural development and land use change in this region has reduced water areas of this ...
Ali Akhoundzadeh   +3 more
core   +1 more source

تحلیل و پیش‌بینی گسترش شهر مشهد با استفاده از تصاویر ماهواره‌ای چندزمانه و زنجیره مارکوف (طی سال‌های ۱۴۰۴-۱۳۷۹) [PDF]

open access: yesجغرافیا و مخاطرات محیطی, 2019
گسترش فیزیکی شهرها یک فرایند پویا و پیوسته است که در آن مرزهای شهر و فضای فیزیکی در جهت‌های عمودی و افقی از نقاط کمی و کیفی افزایش می‌یابد. روش تحقیق حاضر از نوع توصیفی- تحلیلی و از نظر هدف کاربردی است تحقیق حاضر در پی ارزیابی و گسترش شهر مشهد در طی سال ...
ابراهیم اکبری   +2 more
doaj   +1 more source

بررسی تغییرات الگوی پیچانرودی رودخانه دربادام ، شهرستان قوچان [PDF]

open access: yesهیدروژئومورفولوژی, 2022
حوضه­ آبریز دربادام در شمال استان خراسان رضوی واقع شده است. در این پژوهش جهت بررسی تغییرات زمانی و مکانی بستر رودخانه در منطقه‌ی مورد مطالعه از تصاویر ماهواره­ای لندست ( سال­های 2010 تا 2021 ) استفاده گردید و تغییرات رودخانه در دوره‌ی زمانی یازده سال ...
زهرا یونسیان   +2 more
doaj   +1 more source

Spatial analysis and trend extraction of urban heat islands in Iran's major cities in the summer season [PDF]

open access: yes, 2023
Introduction: The effect of the urban environment on the atmospheric air and the boundary layer of urban areas appears mostly in the form of a temperature island.
Mahmoud Ahmadi
core   +1 more source

Study of The Relation Between the Status of The Isin Bandar Abbas Plain Aquifer and Land Use Changes [PDF]

open access: yes, 2023
IntroductionGroundwater is among the most precious natural resources for human health, economic development and environmental diversity. Since the measurement of groundwater parameters and water quality is difficult, costly and far from being available ...
Ali Reza Nafarzadegan   +4 more
core   +1 more source

Comparison of SEBAL Algorithm and Meteorological Data Results in Estimating Daily Evaporation from Free Water Surface (Case Study of Soleimanshah Dam) [PDF]

open access: yes, 2021
Accurate estimation of dam lake evaporation is of great importance in reservoir water management. This factor has led to the installation of meteorological stations in most dams.
Ata Amini   +4 more
core   +1 more source

Analysis of Changes in the Area of Hamoon Wetlands and other Water Bodies in Sistan Region using Satellite Images [PDF]

open access: yes, 2023
Sistan region is one of the important regions whose life depends on the flow of Hirmand river. In this research, the trend of changes in the area of Hamoon wetlands and the factors affecting it, were investigated using satellite and meteorological data ...
Mohsen Ebrahimi-Khusfi
core   +1 more source

Evaluation of Efficiency between Classification Methods and Spectral Indices in Cropped Area Estimation of Shush County [PDF]

open access: yes, 2022
Introduction Agriculture is the essential sector for promoting food security. Crop area estimation (CAE) can meet the requirements of the crop monitoring plan.
M. Abiyat, M. Abiyat, M. Abiyat
core   +1 more source

بررسی وضعیت بوم‌شناختی منطقه جیرفت با توجه به تغییر کاربری اراضی طی دوره 30 ساله [PDF]

open access: yesجغرافیا و مخاطرات محیطی, 2023
این پژوهش باهدف بررسی وضعیت اکولوژیکی منطقه جیرفت تحت تأثیر تغییرات کاربری اراضی انجام شده ‌است. بدین منظور از تصویر ماهواره‌ای در سال 1990 (سنجنده TM از لندست 5) و سال 2020 (سنجنده OLI از لندست 8) برای استخراج دمای سطح زمین با کمک الگوریتم تک باندی و ...
مریم دوستکی   +3 more
doaj   +1 more source

Comparative study of the efficiency of the urban development Agent based model and Markov chain Cellular Automata model for urban development simulation in the Neyshabur [PDF]

open access: yes, 2021
In recent decades due to the rapid and unplanned growth of cities, urban management has been faced with several issues, including models and patterns of urban development and the selection of optimal options for location.
afsaneh naghdbishi, hasan mahmoodzadeh
core   +1 more source

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