List of Articles پوشش گیاهی"

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  1 - Recognition and analysis of urban heat islands using Landsat 8 satellite image (Case example: Shiraz city)
  Raha Dalaeli GholamReza Moradi Mahsa Dehghanian
  The expansion of urbanization has significant effects on the planet. One of the effects that people are dealing with today is global warming, which has appeared as urban heat islands. Heat islands are urban areas that are significantly warmer than the surrounding enviro More

  The expansion of urbanization has significant effects on the planet. One of the effects that people are dealing with today is global warming, which has appeared as urban heat islands. Heat islands are urban areas that are significantly warmer than the surrounding environment. The purpose of the research is to extract the spatial-temporal changes of the thermal islands of Shiraz using satellite images and to determine the relationship between the type of land cover and its surface temperature. In this regard, first the necessary pre-processing was done to prepare a user map on the images and the changes in land cover, water, wind, vegetation and albedo and the sky visibility index of the studied area were also extracted and satellite images were prepared and interpreted in the GIS environment. The results show that point number 9 (Qasr al-Dasht gardens of Shiraz) has the lowest temperature and this shows the inverse relationship between green spaces and thermal islands. The use of remote sensing data plays an important role in the management of urban space and effectively helps city managers in urban space planning. Urban building materials have a significant effect on intensifying heat islands in such a way that the use of standard materials reduces the temperature to a large extent, and vegetation has a reducing effect and built surfaces have intensifying effects on heat islands. The pattern of spatial and temporal distribution of thermal islands is influenced by the pattern of land use distribution. Manuscript profile
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  2 - Analysis of Sentinel 3 images of SLSTR sensors in identifying urban heat islands and its relationship with vegetation (Case study: Kermanshah)
  Mostafa Shahinifar Hamidreza Shahandeh
  This issue has become more apparent in large cities and provincial capitals, which have undergone land use changes in recent years. The main purpose of this study is to investigate the spatial relationship between the distribution of thermal islands with urban vegetatio More

  This issue has become more apparent in large cities and provincial capitals, which have undergone land use changes in recent years. The main purpose of this study is to investigate the spatial relationship between the distribution of thermal islands with urban vegetation and compare the intensity of thermal islands in minimum, maximum and average values in urban areas of Kermanshah during the last 10 years. Data were analyzed using Sentinel 3 satellite imagery and SLSTR sensor with a spatial resolution of 500 m in the reflective bands and 1000 m in the thermal band using SNAP and QGIS software. Therefore, continuous monitoring of land use change is one of the main challenges of urban planning and management in metropolitan areas. Because the increase of green space in the city significantly reduces the temperature of the city and thermal islands. The key findings of this research are focused on three areas: first, focusing on the fair distribution of green spaces in the city, second, using waste spaces to increase green spaces, and finally, avoiding additional burden on the ground, because in dense areas, the possibility of creating thermal islands is much higher. It was from other places. Manuscript profile