• Investigation of Solar Events Propagation in the Interplanetary Space 

  Sabri, Somaiyeh؛ Poedts, Stefaan (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  Coronal Mass Ejections (CMEs), large-scale eruptions of plasma and magnetic field from the solar corona, have been detected as for a cause of significant space weather effects. Fundamental research on solar events complexity ...

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• A research on the statistical relationships between auroras and geoinduced currents in power electric systems of the Russian Arctic 

  Vorobev, Andrei V.؛ Vorobeva, Gulnara R. (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  Confident progress in developing the Russian Federation's Arctic zone requires minimizing the negative impacts of space weather on electric power systems within the auroral oval. Some scientific studies propose methods for ...

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• Aerosol-Cloud-Lightning Interactions: A Comparative Study of Mountainous and Coastal Environments in Iran 

  Ramezani, Reza؛ Gharaylou, Maryam؛ Mazraeh Farahani, Majid؛ Pegahfar, Nafiseh (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  Aerosols affect cloud microphysical processes and lightning activity by acting as cloud condensation nuclei. To investigate this, we analyzed lightning density data from the Lightning Imaging Sensor (LIS), alongside cloud ...

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• Investigation of the Magnetosphere-Solar Wind Interaction Using an Artificial Neural Network 

  Heidari, Mehdi؛ Mir Rokni, Seyed Majid (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  The significant variations in the solar and magnetic parameters during the peak solar activity periods necessitate a detailed analysis to understand the interactions between the solar wind and the magnetosphere. This ...

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• FDTD Simulation Study of Brillouin Scattering Emission Lines Stimulated by High Frequency Radio Waves in the Ionospheric Plasmas 

  Barzegar, Sahar (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  A high-power electromagnetic (EM) wave can decay into an ion acoustic wave and a scattered EM wave in a plasma through a process called Stimulated Brillouin Scattering (SBS). A one-dimensional fully electromagnetic ...

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• Projecting the Climate Change Impact on Water Yield in a Cold Mountainous Watershed, Ardabil 

  Asgari, Ebrahim؛ Mostafazadeh, Raoof؛ Talebi Khiavi, Hossein (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  Population growth and climate change are worsening pressure on water supplies, altering rainfall-runoff patterns, and posing significant challenges for water management. Climate change profoundly affects society, particularly ...

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• Low Frequency (LF) Radio Sounding for Ionospheric Remote Sensing and Earthquake Prediction (Case Study: a few Earthquakes in North-West Iran) 

  Safari, Mohsen؛ Mahmoudian, Ali Reza؛ Rezapour, Mehdi (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  This paper presents the first low-frequency (LF) radio sounding in Iran for earthquake prediction and ionospheric remote sensing purposes. Two LF signals transmitted from Türkiye (162 kHz) and Tajikistan (252 kHz) are ...

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• Aquifer Vulnerability Index Model for Vulnerability Assessment: A Case Study of Irewolede Estate in Ilorin, North-Central Nigeria 

  Abubakar, Hussain Olanrewaju؛ Adebisi, Warith Adewale؛ Folorunso, Ismail Oluwaseye؛ Adeoye, Taiye Olushola؛ Olatunji, Saminu؛ Odangbe, Caleb O. (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  An Electrical Resistivity Survey was conducted in the Irewolede Estate, located within the Ilorin Metropolis, with the objective of evaluating the susceptibility of the weathered geological layer to contamination. A total ...

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• Geometric Approach for Identifying Activated Fault Planes; Case Study: the 2014 Murmuri Earthquake, Northwestern Zagros, Iran 

  Abbasian, Maryam؛ Rezapour, Mehdi (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  An analysis was conducted on the 2014 Murmuri earthquake sequence in the Zagros Mountains of Iran, aiming to determine the main fault plane. The sequence comprised of an initial Mw 6.2 earthquake, followed by five aftershocks ...

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• Investigating the Mechanism of Earthquakes in the Iranian Plateau Using the GCMT Catalogue 

  Rezapour, Mehdi؛ Rezaei, Nasrin (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  Routine estimates of the seismic moment (M0) by the Global Centroid Moment Tensor Project (GCMT) for large and moderate earthquakes, provide a valuable resource for tectonic analysis. In this research, the source type of ...

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• Enhancing Porosity Prediction Accuracy in Oil Reservoirs: Evaluating Hybrid Machine Learning Approaches Integrating Well Log and Core Data 

  Mehrabi, Amir Reza؛ Bagheri, Majid؛ Nabi Bidhendi, Majid؛ Biniaz Delijani, Ebrahim؛ Behnood, Mohammad (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  Accurate prediction of porosity holds significant importance across various domains within the oil and gas sector, encompassing activities such as reservoir delineation, well design, and production enhancement. However, ...

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• Energy Estimation as Earthquake Precursor, Using the Energy of the Radiated Particles with the Help of Monte Carlo Methods 

  Bahari, Abouzar؛ Mohammadi, Saeed (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  In this study, utilizing the relationships between the energy of atomic/nuclear particles released from underground piezoelectric rocks and the elastic energy stored in these rocks, we introduced some methods to estimate ...

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• Gas Reservoir Detection Using Mixed Components Short Time Fourier Transform (MC-STFT) as a new attribute 

  Jalali, Ali؛ Bagheri, Majid؛ Abbasi, Mostafa (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  Identification of gas reservoirs as a main natural resource due to their economic importance has always been one of the most important issues in research studies in the oil and gas fields. Accurate localization of a gas ...

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• Unveiling the Pasqale Avalanche: A Perilous Prehistoric Landslide Proximity to Tehran's Metropolis in Darband Valley, Iran 

  Ehteshami-Moinabadi, Mohsen؛ Feyzabadi, Elahe؛ Nasiri, Shahram (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  This research introduces the Pasqale rock/debris avalanche, an occurrence of a prehistoric landslide in the upstream region of Darband Valley in northern Tehran metropolitan area that is exemplified as an instance of a ...

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• Risk Hazard Zonation on Mishrif Formation in Sirri Oil Field with Reservoir Management Approach 

  Talebi, Amir (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  Predicting reservoir performance in the future is closely related to the accurate identification of reservoir history in the past. In this study, based on a new approach, risk zonation in hydrocarbon reservoirs has been ...

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• Monitoring the Fault Zone of the Sefid Sang Earthquake (April 5, 2017, Mw 6.1) via Ambient Seismic Noise Analysis Utilizing the Moving Window Cross-Spectral Technique 

  Nameni, Mohamad Reza؛ Rahimi, Habib؛ Mortezanejad, Gholamreza (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  The Passive Image Interferometry (PII) approach, which incorporates a cross-correlation process to reconstruct the green function between two stations, is emerging as an effective tool for studying seismic velocity changes. ...

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• Mapping of subsurface thermal structures of Gongola Basin, NE Nigeria from airborne magnetic and gamma-ray spectrometry data: implication for geothermal prospecting 

  Adewumi, Taiwo؛ Abimbola, Oladiran Johnson؛ Madaki, Umar Abubakar؛ Kwaghhua, Fidelis Iorzua؛ Lawal, Sabo Mohammed (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2025-02-19)

  The present study attempts to map the thermal structures of part of the Gongola Basin, NE Nigeria, from airborne magnetic and gamma-ray spectrometry data, with implications for geothermal resource exploration. The residual ...

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• استفاده از روش رگرسیون خطی چند متغیره به‌منظور مدل‌سازی دمای تراز دو متر از طریق داده‌های سنجنده مودیس 

  محمدی آهویی, محمد امین؛ سام خانیانی, علی (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2024-09-22)

  دمای هوا در نزدیکی سطح زمین، یکی از متغیرهای تأثیرگذار در مطالعات مختلف اقلیمی، هیدرولوژی و پیش‌بینی وضع آب‌وهوا می‌باشد. هدف اصلی این مطالعه ایجاد مدلی مناسب برای برآورد این پارامتر به‌کمک داده‌های LST ماهواره‌ای است. ...

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• استفاده از جفت‌سازی کاپیولای همادی برای پس‌پردازش پیش‌بینی همادی چند متغیره 

  محمدی, سیده عاطفه؛ آزادی, مجید (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2024-09-22)

  پیش‌بینی‌های همادی اغلب دارای اریبی و خطاهای پراکندگی هستند و بنابراین باید از نظر آماری پس‌پردازش شوند. با این‌حال، رویکردهای پس‌پردازش همادی تک‌متغیره مانند EMOS و BMA برای یک کمیت، در یک مکان واحد و فقط برای یک افق ...

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• اقلیم‌شناختی مسیرهای توفان برون‌حاره‌ای نیمکره شمالی و مناطق اصلی ورودی آنها به شمالگان 

  موسوی زاده, سید مرتضی؛ احمدی گیوی, فرهنگ؛ علیزاده, امید (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2024-09-22)

  در این مقاله، اقلیم‌شناختی مسیرهای توفان برون‌حاره‌ای نیمکره شمالی و ورودی‌های اصلی توفان‌ها‌ به شمالگان و اثرات احتمالی آنها بر کاهش محلی یخ دریای شمالگان در چهار فصل بررسی شده است. شناسایی مسیرهای توفان با به‌کارگیری روش ...

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