دوره 46, شماره 4

 

ارسال های اخیر

  • Multiple-Scale Interactions during an Extreme Rainfall Event over Southern Vietnam 

    Thang, Vu Van؛ Thang, Vu Van؛ Thanh, Cong؛ Thanh, Cong؛ Tuan, Bui Minh؛ Tuan, Bui Minh (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    In August 2019, southern Vietnam suffered its worst flooding to date, which was also associated with record-breaking extreme rainfall. This study seeks to explain how this extreme rainfall event can be distinguished from ...

  • Verification of Rainfall Forecasts for the South Central Climate Region of Vietnam 

    Nguyen, Van Thang؛ Nguyen, Van Thang؛ Van Khiem, Mai؛ Van Khiem, Mai؛ Nguyen, Hoang-Minh؛ Nguyen, Hoang-Minh؛ Thang, Vu Van؛ Thang, Vu Van (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    This study aims to investigate the performance of the Weather Research and Forecasting (WRF) model for rainfall forecasts in the South Central climate region of Vietnam. The investigation was carried out by analyzing the ...

  • The Evaluations of NEX-GDDP and Marksim Downscaled Data Sets Over Lali Region, Southwest Iran 

    Zeydalinejad, Nejat؛ Zeydalinejad, Nejat؛ Nassery, Hamid Reza؛ Nassery, Hamid Reza؛ Shakiba, Ali Reza؛ Shakiba, Ali Reza؛ Alijani, Farshad؛ Alijani, Farshad (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    Downscaling of climatic variables is a difficult problem in the climate change impact studies. However, some climatic data sets exist that have been universally downscaled. These data sets introduce climatic data even in ...

  • Investigating the Linkage between Precipitation and Temperature Changes in Iraq and Greenhouse Gas Variability 

    Al-Khalidi, Jasim؛ Al-Khalidi, Jasim؛ Bakr, Dher؛ Bakr, Dher؛ Hadi, Azhar؛ Hadi, Azhar؛ Omar, Meeran؛ Omar, Meeran (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    In this study, the homogeneity of annual precipitation and temperature in Iraq were examined for the periods 1981-2010 and 1971-2010, respectively in terms of Greenhouse Gases (GHGs) and their link to climate change. ...

  • Investigation of the Effect of Persian Gulf Outflow Intrusion into the Oman Sea on the Acoustic Signal Fluctuations 

    Zaiee, Nabiollah؛ Zaiee, Nabiollah؛ Akbarinasab, Mohammad؛ Akbarinasab, Mohammad؛ Sadrinasab, Masoud؛ Sadrinasab, Masoud (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    Outflow intrusions are often detected in the vertical profiles of temperature and salinity in the ocean (for example, the Red Sea and Persian Gulf outflow into the India Ocean and Oman Sea, respectively). They are being ...

  • Ground Based Gravimetric for the Detection and Depth Mapping of Subsurface Geological Features of Ilesha, Southwest Nigeria 

    Layade, Gideon O.؛ Layade, Gideon O.؛ Edunjobi, Hazeez O.؛ Edunjobi, Hazeez O.؛ Ajayi, Kehinde D.؛ Ajayi, Kehinde D.؛ Olujimi, D. P.؛ Olujimi, D. P. (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    This paper presents the analysis and interpretation of ground gravity data of Ilesha and its environs in southwest Nigeria. The work is aimed at complementing researches done in this locality with magnetic survey for both ...

  • Spectral Analysis of High-Resolution Aeromagnetic Data for Geothermal Energy Reconnaissance across Sokoto Basin, Northwest, Nigeria 

    Suleiman, Taufiq؛ Suleiman, Taufiq؛ Okeke, F. Nneka؛ Okeke, F. Nneka؛ Obiora, N. Daniel؛ Obiora, N. Daniel (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    This study interprets aeromagnetic data across Sokoto Basin with the aim of estimating the Curie point depth, geothermal gradient and heat flow for geothermal energy exploration. The study area lies between the longitude ...

  • 3D Gravity Cross-Correlation Imaging for Large Scale Data Analysis: Application to the Crustal Structure of Iran 

    Ahmadi, Iman؛ Ahmadi, Iman؛ Ghorbani, Ahmad؛ Ghorbani, Ahmad؛ Ansari, Abdol Hamid؛ Ansari, Abdol Hamid (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    We propose the 3D gravity cross-correlation method to large scale data analyses as a fast analysis method to image the underground mass distribution. This method presents the cross-correlation product of the observed gravity ...

  • Application of Forward and Inverse Modelling to High-Resolution Gravity Data for Mineral Exploration 

    Layade, Gideon O,؛ Layade, Gideon O,؛ Edunjobi, Hazeez O.؛ Edunjobi, Hazeez O.؛ Makinde, Victor؛ Makinde, Victor؛ Bada, B. Saheed؛ Bada, B. Saheed (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    Gravity survey is a geophysical tool used to investigate the subsurface by measuring the differences in Earth's gravitational field. The high-resolution gravity data within latitude 70.00׀ - 70.30 ׀N, and longitude 30.00 ...

  • A Combination of Monte-Carlo and Damped Least Square Inversion Method for Determining Radon Source in Geothermal Case 

    Haerudin, Nandi؛ Haerudin, Nandi؛ Yogi, Ida Bagus Suananda؛ Yogi, Ida Bagus Suananda (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    Radon measurement on the surface can represent the subsurface condition. The measured Radon in geothermal field is caused by the source, which is usually a geothermal reservoir. This study did the inversion process for ...

  • Measurement Methods for Cross-Sections of Tunnels Using Reflectorless Total Stations 

    Zakeri, Sajjad؛ Zakeri, Sajjad؛ Farzaneh, Saeed؛ Farzaneh, Saeed (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    Owing to the technical and economic aspects of the project management, pre-estimating the volumes of excavating, shotcreting, and concreting operations have been of great importance for the underground construction industry, ...

  • 2-D Anticlinal Structure Modeling Using Feed-Forward Neural Network (FNN) Inversion of Profile Gravity Data: A Case Study from Iran 

    Eshaghzadeh, Ata؛ Eshaghzadeh, Ata؛ Seyedi Sahebari, Sanaz؛ Seyedi Sahebari, Sanaz؛ Kalantari, Roghayeh Sadat؛ Kalantari, Roghayeh Sadat (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    The Anticlines are the main hydrocarbon traps on land or at sea. This structure is considered as the target of the many projects of gravity exploration all over the world. Artificial neural networks (ANNs) are used in order ...

  • A Semi-Automatic 2-D Linear Inversion Algorithm Including Depth Weighting Function for DC Resistivity Data: A Case Study on Archeological Data Sets of Pompeii 

    Varfinezhad, Ramin؛ Varfinezhad, Ramin؛ Oskooi, Behrooz؛ Oskooi, Behrooz (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    In this paper, a new simple, efficient and semi-automatic algorithm including depth weighting constraint is introduced for 2-D DC resistivity data inversion. Inversion procedure is linear; however, DC resistivity data ...

  • Automatic Satellite’s Streak Detection in Astronomical Images Based on Intelligent Methods 

    Farzaneh, Saeed؛ Farzaneh, Saeed؛ Sharifi, Mohammad Ali؛ Sharifi, Mohammad Ali؛ Kosary, Mona؛ Kosary, Mona (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    The orbit determination in one sentence is the application of a variety of techniques for estimating the orbits of objects such as the moon, planets and spacecraft. In dynamic astronomy, the orbit determination is the ...

  • Improvement in the Empirical Green's Function Extraction Using Root Mean Square Ratio Stacking 

    Safarkhani, Mahsa؛ Safarkhani, Mahsa؛ Shirzad, Taghi؛ Shirzad, Taghi (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    Seismic interferometry is an efficient technique to extract the Empirical Green's Function (EGF) between station pairs when the source is considered at one of the stations. The geometry and energy flux of asymmetric noise ...

  • Two-Dimensional Magnetotelluric Modeling of the Sabalan Geothermal Field, North-West Iran 

    Fanaee Kheirabad, Gholam Abbas؛ Fanaee Kheirabad, Gholam Abbas؛ Oskooi, Behrooz؛ Oskooi, Behrooz (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    During 2007, a magnetotelluric (MT) survey in the frequency range of 0.002-320 Hz was carried out on southwestern of Sabalan geothermal region (Moeil valley, Ardabil); the aim of which was modeling of the shallow and deep ...

  • Using Electrical Properties of Some Subsurface Sedimentary Rocks as a Tool to Detect Bedding Direction 

    Gomaa, .Mohamed M؛ Gomaa, .Mohamed M (موسسه ژئوفیزیک دانشگاه تهرانInstitute of Geophysics, University of Tehran, 2021-01-20)
    The direction of bedding is not natural to be detected using laboratory measurements. Cretaceous rocks are mainly composed of sandstone and clay (clastic facies, sandstones, siltstones, mudstone). Electrical characteristics ...