Volume 32 (2023)
Volume 31 (2022)
Volume 30 (2021)
Volume 29 (2020)
Volume 28 (2019)
Volume 27 (2018)
Volume 26 (2017)
Volume 25 (2016)
Volume 24 (2015)
Volume 23 (2014)
Volume 22 (2013)
Volume 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Volume 15 (2006)
Volume 14 (2005)
Volume 13 (2004)
Volume 12 (2003)
Volume 11 (2002)
Volume 10 (2001)
Volume 9 (2000)
Volume 8 (1999)
Volume 7 (1998)
Volume 6 (1997)
Volume 5 (1996)
Volume 4 (1995)
Volume 3 (1994)
Volume 2 (1992-1993)
Volume 1 (1990-1992)
Extraction, processing, production and display of geographic data
Investigating Decadal Changes in the Probability of Iran’s Precipitation Duration (1977-2016)

Zahra Rabiee Gaffar; Hossein Asakereh; Uones Khosravi

Articles in Press, Accepted Manuscript, Available Online from 10 November 2023

https://doi.org/10.22131/sepehr.2023.1995956.2967

Abstract
  Extended Abstract Introduction The Intergovernmental Panel on Climate Change (IPCC) has reported that climate change results in anomalies, fluctuations or trends in climatic elements, such as precipitation and temperature. In this study, we aim to investigate the decadal changes in the probability ...  Read More

Extraction, processing, production and display of geographic data
Changes in normalized difference vegetation index (NDVI) concerning the change in precipitation climatology in Iran

Hossein Asakereh; Somayeh Taheri Alam; Nosrat Farhadi

Articles in Press, Accepted Manuscript, Available Online from 15 February 2024

https://doi.org/10.22131/sepehr.2024.2004765.2985

Abstract
  Extended Abstract Introduction Climate changes manifested in different ways and time scales (short-term fluctuations and long-term changes) effects. The consequences of such changes can be traced to various parts of the environment. One of the climate change manifestations is the change in biological ...  Read More

Geographic Data
Spatial analysis of the trend of regional inequalities in Iran

Mirnajaf Mousavi; Nima Bayramzadeh

Articles in Press, Accepted Manuscript, Available Online from 22 April 2024

https://doi.org/10.22131/sepehr.2024.2017054.3039

Abstract
  Extended Abstract Introduction Spatial inequalities in developing countries such as Iran are more visible due to various factors, so many Scientists (Dadashpour & Shojaei, 2022-Mosayebzadeh et al, 2021- Fotres & Fatemi Zardan, 2020- Dadashpour & Alvandipour, 2018- GhaderHajat & Hafeznia, ...  Read More

Extraction, processing, production and display of geographic data
Evaluation and comparison of regional accuracy of global remote sensing products in Iran - Case study of land cover products in Mazandaran Province

Qadir Ashournejad

Volume 32, Issue 127 , December 2023, , Pages 95-115

https://doi.org/10.22131/sepehr.2023.1988986.2954

Abstract
  Extended AbstractIntroductionRemote sensing is considered as the most important source of spatial data in the current era, which we witness its increasing development in different dimensions. The release of global products of these data in recent years with the aim of easier access and use by experts ...  Read More

Extraction, processing, production and display of geographic data
Spatial analysis of monthly changes in planetary boundary layer height in Iran

Seyed Hossein Mirmousavi

Volume 32, Issue 127 , December 2023, , Pages 117-132

https://doi.org/10.22131/sepehr.2023.1986610.2937

Abstract
  Extended AbstractIntroductionThe planetary boundary layer (PBL) as the lowest part of the troposphere is the most dynamic part of the atmosphere that is directly affected by the interactions of the atmosphere and the surface of the Earth (Stell, 2012 and Gert, 1992). These atmospheric surface interactions ...  Read More

Detection and analysis of temperature trend at the 1000 hPa level in Iran

Yousef Alipour; Naser Bayat; Ali Osanlu

Volume 31, Issue 121 , June 2022, , Pages 191-203

https://doi.org/10.22131/sepehr.2022.252778

Abstract
  Extended AbstractIntroductionTemperature is considered to be an important element of climate whose changes have important consequences for human life. The present study seeks to detect trends and significant changes in the temperature at the 1000 hPa level in Iran. Due to its geographical location, Iran ...  Read More

Combining satellite-based gravity data and information received from ground stations to provide an efficient index for drought monitoring in Iran

Saeed Farzaneh; Reza Shahhoseini; Iman Kordpour

Volume 30, Issue 117 , June 2021, , Pages 7-17

https://doi.org/10.22131/sepehr.2021.244447

Abstract
  Introduction Drought is considered to be one of the most widespread natural disasters, ranking second in terms of damages. Due to the complex relationship between hydrological cycle parameters and atmospheric observations, predicting or modeling drought lacks the necessary precision. One of the most ...  Read More

Monitoring variability of soil moisture in Hour-al-Azim Wetland and its relation to dust storms in southwest Iran

Mahdi Sedaghat; Hamid Nazaripour

Volume 29, Issue 114 , August 2020, , Pages 133-145

https://doi.org/10.22131/sepehr.2020.44598

Abstract
  Extended Abstract Introduction Soil moisture is considered to be a key parameter in meteorology, hydrology, and agriculture, and the estimation of its temporal-spatial distribution contributes to understanding the relations between precipitation, evaporation, water cycle, and etc. Soil moisture reduction ...  Read More

Seasonal changes of liquid clouds in Iran based on data received from MODIS sensor of TERRA satellite

Mahmoud Ahmadi; Abbas Ali Dadashi Rodbari; Behnaz Nassiri Khuzani; Tayebeh Akbari Azirani

Volume 29, Issue 113 , June 2020, , Pages 7-19

https://doi.org/10.22131/sepehr.2020.40467

Abstract
  Introduction Cloud is a special phenomenon formed by dynamic and thermodynamic changes of the general atmospheric circulation. Through dispersion and reflection of solar radiation, cloudschange energy balance of the Earth and affect its hydrologic cycleby producing rainfall in various forms. Determining ...  Read More

Assessment of vertical deflection derived from a combination of Global Geopotential Model and Digital Terrain Model in Iran

Roohollah Karimi; Ali Reza Azmoude Ardalan; Siavash Yousefi

Volume 29, Issue 113 , June 2020, , Pages 21-28

https://doi.org/10.22131/sepehr.2020.40468

Abstract
  Introduction Components of verticaldeflection, i.e., North-South component  and East-West component ,are used for accurate determination of geoid or quasigeoid. Moreover, vertical deflection components area useful source for determination of variations in subsurface density and geophysical interpretations. ...  Read More

Analyzing Long-Term average of outgoing longwave radiation over Iran using remote sensing data

Omid Reza Kefayat Motlagh; Mahmood Khosravi; Sayyed Abolfazl Masoodian

Volume 28, Issue 109 , June 2019, , Pages 199-209

https://doi.org/10.22131/sepehr.2019.35647

Abstract
  1-Introduction The sun is the primary source of energy and life for Earth, and without solar radiation, there will be no atmospheric and climate processes on the Earth. Animal, human and plant life on the Earth depend on the energy received from the sun. Shortwave solar radiation is very important, due ...  Read More

Synoptic analysis of global warming effect on temperature trends of atmospheric levels in Iran

Faramarz Khoshakhlagh; Nemat Ahmadi; Mostafa Karimi

Volume 28, Issue 109 , June 2019, , Pages 211-222

https://doi.org/10.22131/sepehr.2019.35648

Abstract
  Introduction The notion of climate change indicates a significant change in climate and environmental conditions over a long period of time (from a few decades to centuries). These changes can occur in mean radiation, temperature, precipitation, atmospheric patterns, wind, and other climate parameters. ...  Read More

Analyzing the effect of the North Atlantic oscillation index on the variability of vegetation in Iran

mohammad Rezaei; Elham Ghasemifar; Chenour Mohammadi

Volume 27, Issue 108 , March 2019, , Pages 151-164

https://doi.org/10.22131/sepehr.2019.34627

Abstract
    Extended Abstract Introduction Vegetation plays an important role in the cycle of energy, carbon, hydrology and bio-geochemistry. The climate and vegetation have a mutual effect on each other. For example, the surface vegetation affects atmospheric patterns by affecting the surface albedo (which ...  Read More

Vulnerability zoning of seismic points in Iran’s Provinces based on temperature variations and seismic events using MODIS images of MOD11A1 and the GIS

Heydare Lotfi; Hosseyn Musazadeh

Volume 27, Issue 106 , September 2018, , Pages 101-117

https://doi.org/10.22131/sepehr.2018.32335

Abstract
  Extended Abstract  Introduction In order to analyze the reduction of the impacts of natural hazards, particularly the earthquakes, four basic constituents such as conceptual understanding of development, vulnerability, recognition of the concept of risk, conceptual understanding of capacity building, ...  Read More

Study of Iran’s monthly and annual Rainfall variations in different classes

Mostafa Karampoor; Zahra ZareiCheghabaleki; Mansour Halimi; Mostafa Nouroozi Mirza

Volume 27, Issue 105 , June 2018, , Pages 199-217

https://doi.org/10.22131/sepehr.2018.31492

Abstract
  Extended Abstract Introduction Global warming and climate change are terms for the observed century-scale rise in the average temperature of the Earth's climate system and its related effects. Multiple lines of scientific evidence show that the climate system is warming. Many ...  Read More

Introduction and Evaluation of Global Model of Land Data Assimilation

Morteza Miri; Ghasem Azizi; Hossein Mohammadi; Mahdi Pourhashemi

Volume 26, Issue 104 , March 2018, , Pages 5-17

https://doi.org/10.22131/sepehr.2018.30514

Abstract
  Extended Abstract Introduction The limited access to the atmospheric and terrestrial data such as rainfall, temperature, humidity and soil temperature is the most important problem in studying many climatological and hydrological in many parts of the world, particularly in developing countries, rural ...  Read More

Study of Potentials of Tourism Climate in The Caspian Southern Coasts

sajad ferdowsi; Hamid Reza Shahmohammadi; Mahboobeh Jalali

Volume 26, Issue 104 , March 2018, , Pages 103-115

https://doi.org/10.22131/sepehr.2018.30521

Abstract
  Extended Abstract Introduction In recent years, the economic benefits of tourism has attracted attention of many countries that have maritime border. In this regard, Caspian Sea which located in the northern part of Iran, has special potential in the field of tourism and it can be seen a bright future ...  Read More

Comparative Analysis of Iran’s Average Monthly Heating and Cooling Degree Days during the Past and Future Periods

Kamal Omidvar; Reza Ebrahimi; Ahmad Mazidi; Teymur Alizadeh

Volume 26, Issue 104 , March 2018, , Pages 197-209

https://doi.org/10.22131/sepehr.2018.30535

Abstract
  Abstract[1] Increasing demand for energy against the reduction of comprehensive energy resources along with the consequences of global warming, make the importance of a quantitative review of changes in the need for cooling, heating of the country in the past and in the future decades essential. First, ...  Read More

Validation of AOGCMs capabilities for simulation length of dry spells under the climate change and uncertainty in Iran

Seyyed Keramat Hashemi-Ana; Mahmud Khosravi; Taghi Tavousi; Hamid Nazaripour

Volume 26, Issue 103 , November 2017, , Pages 43-58

https://doi.org/10.22131/sepehr.2017.28892

Abstract
  Extended Abstract   Introduction Precipitation is one of the vital climatic parameters that plays a major role in human life. Therefore, the impact of Precipitation in occurrence or non-occurrence of droughts and dry spells have been very effective. Identification and extraction length of dry spells ...  Read More

Estimation of forest changes based on climatic factors using satellite images

Ali Ahmadabadi; Amanollah Fathnia; Saeed Rajaei

Volume 26, Issue 102 , September 2017, , Pages 127-137

https://doi.org/10.22131/sepehr.2017.27462

Abstract
  Abstract[1] Vegetation cover has a high relationship with climatic conditions. Identification of the seasonal variation of plant growth to determine the response of ecosystems to climate change in seasonal and inter-annual time scales is decisive.To present a prediction model, 7 climatic elements including ...  Read More

Comparative Assessment of Vertical Accuracy of SRTM and ASTER GDEM Elevation Data

Reza Aghataher; Mahdi Samadi; Ilia Laliniat; Iman Najafi

Volume 25, Issue 99 , December 2016, , Pages 103-113

https://doi.org/10.22131/sepehr.2016.23199

Abstract
  Abstract Digital Elevation Models (DEM) enable researchers to perform geographical researches on a global and regional scale such as global changes, natural disasters, environmental hazards, environmental monitoring, etc. Therefore, DEM data plays a key role in scientific researches. SRTM and ASTER ...  Read More

Uncertainty analysis of the future changes in maximum daily temperatures over Iran using GIS

Mohsen Abbasnia; Taqi Tavousi; Mahmood Khosravi; Toros Hossein

Volume 25, Issue 97 , June 2016, , Pages 29-43

https://doi.org/10.22131/sepehr.2016.20134

Abstract
  Recognizing and evaluating the climate changes in the coming decades is absolutely necessary for the purpose of appropriate environmental planning in order to adapt and mitigate its effects. In this research, the SDSM model was successfully calibrated and validated (1981-2010) tocomparatively analyze ...  Read More

Prioritization of the Islamic-Iranian Justice Indices in Realization of Land Use Planning and Balanced Development in Iran

Mir Najaf Mousavi; Mahdi Modiri

Volume 24, Issue 95 , December 2015, , Pages 17-35

https://doi.org/10.22131/sepehr.2015.15547

Abstract
  Development plans are the most important mechanism of government for the realization of justice in society. For this reason, focusing on ecological, economic, physical, social and cultural justice in programming and setting it within the framework of Islamic justice leads to the formation of an equitable ...  Read More

Simulating the Wind Speed Variations and Prediction in Iran using 50 year Statistical Data (1961-2010)

AhmadReza Ghasemi; Foruh Sadat Sayedi

Volume 24, Issue 94 , September 2015, , Pages 95-105

https://doi.org/10.22131/sepehr.2015.14479

Abstract
  Wind is one of the main elements in the climate of each region,and its changes can affect phenomena such as dust storms and the severity of evapotranspiration.The declining trends of surface windreported by previous studies are generally small, but it is still important to assess the distribution of ...  Read More

Analyzing the change in daily precipitationfrequencydistribution of Aphrodite database in Iran

Esmaeil Nasrabadi

Volume 23, Issue 92 , February 2015, , Pages 67-79

https://doi.org/10.22131/sepehr.2015.13508

Abstract
  Analyzing the changes in the characteristics of daily precipitationis very important in water resources planning and cultivation patterns. In this research, the changes of the most fitting frequency distribution and its parameters over time are investigated. To this end,thenetworked daily precipitation ...  Read More