List of Articles Angstrom

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  1 - Atmospheric dust detection using WRF-Chem model and remote sensing data (Case study: West and southwest of Iran)
  Morteza Miri Razieh Pilehvaran Mehran Zand Ali akbar Noroozi
  10.30495/wsrcj.2021.18082
  Aerosols play an important role in balancing Earth and atmosphere energy. In the last two decades, aerosols have been recognized as one of the key factors in the global climate change assessment. The purpose of this study, Determine the nature of atmospheric aerosols an More

  Aerosols play an important role in balancing Earth and atmosphere energy. In the last two decades, aerosols have been recognized as one of the key factors in the global climate change assessment. The purpose of this study, Determine the nature of atmospheric aerosols and simulation of the concentration of these particles in order to detect the sources of their emissions to the west and southwest regions of Iran. In order to, two types of information, including horizontal visibility of data from meteorological stations and the optical depth (AOD) MODIS were used Two dust events July 5, 2009 and July 1, 2008.In order to determine the nature of atmospheric aerosols, in the software of the 〖ENVI〗^(@ ) 5.3 , the atmospheric aerosol particle size was calculated using the Deep Blue Aerosol Angstrom Exponent Land algorithm and mapped to the Arc GIS and Then they were analyzed. In order to detect the particle emission sources and Simulation of their concentration was performed using the WRF-Chem coupled numerical model, using the advanced MADE-SORGAM scheme. The results of the remote sensing method showed that the aerosol particles in the western and southwestern regions of Iran have a dusty nature. According to the output of the WRF-Chem numerical model in the both of the dust events, the northwestern regions of Iraq and its center were identified as the main sources of dust emissions. Manuscript profile
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  2 - Calibration of earth surface received radiation in north east of Iran
  mahnaz rostamian Amir Hossein Halabian
  Abstract The solar radiation reached the earth surface (RS) has wide applications in many areas of agriculture engineering, irrigation and hydrology and that’s why various methods have been represented for its estimation, which Angstrom – Prescott equation More

  Abstract The solar radiation reached the earth surface (RS) has wide applications in many areas of agriculture engineering, irrigation and hydrology and that’s why various methods have been represented for its estimation, which Angstrom – Prescott equation is one of the most important equation in this field. This equation has experimental coefficients that are different for any situation. Because of the importance of Rs, various methods have developed for its estimation. The radiation reached to earth surface is evaluated by using average daily sunny hours data of synoptic affiliated to the general state metrological office in the north of Khorasan, Khorasan Razavi and southern Khorasan 1988- 2016. The Angstrom – prescient method has been used for estimating solar radiation of earth surface in the studied area. In this research, the a & b coefficients were calculated by using Ferrer's method fastly and then have been placed in Angstrom equation. Finally, the radiation equivalent map of the studied area has been drawn and analyzed by using kriging interpolation model. The research outcome indicated that southern, south-east regions and at the next level, the center of the studied area especially Nehbndan station have more potential for receiving solar radiation. The minimum monthly received radiation of area during January and December month in the north and northwest of this region, which are 7.98 and 7.36 megajoules per square meter respectively. The maximum received radiation of area occurs in July about 30.24 megajoules. South and south-east regions up to the center of the of the area Nehbandan station have more potential for receiving in terms of radiation during summer & spring seasons respectively. Manuscript profile
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  3 - Estimation and mapping of the global component of solar radiation and wind power density over Chad
  Marcel Hamda Soulouknga Iman Pishkar Dieudonné Kaoga Kidmo Mehdi Jahangiri
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