جستجوی مقالات مرتبط با کلیدواژه « meshginshahr city » در نشریات گروه « جغرافیا »

Population growth and urban development have made use of much of the urban land, especially agricultural lands and gardens, for residential, industrial, and transportation uses. This use changes lead to increased pollution and degradation of the environment and above all the earth's surface temperature has increased.

This study investigates the relationship between land use and thermal islands in Meshginshahr over the 1984, 1999 and 2020 time periods.

The research method is applied and research in nature. To achieve the goal of the research, after radiometric and atmospheric processing of the images, land surface temperature (LST) and vegetation index (NDVI) were calculated. Then, using the error matrix method, the accuracy and precision of kappa for production maps were evaluated.

Studied Areas: 

The geographical area of this research is MeshginShahr city.

The findings indicate that Maps of the heat island show that in 1984 the minimum temperature is 22 and the maximum temperature is 43 ° C. While this situation has been increasing in 2020, the minimum temperature is 29 and the maximum temperature is 63 ° C.

The results of the relationship between land surface temperature and land use changes show that the highest land surface temperature is related to urban construction lands and this is a result of reduced vegetation cover and increased impermeable levels. Also, the study of the spatial distribution changes of the surface temperature of the island and the thermal island showed that with the disappearance of vegetation inside and around the city the cool temperature class replaced the warm temperature class.

Today, policymakers and planners refer to rural tourism as a lever for regional development and a way to save villages from social and economic problems. The main goal of this research is to identify the obstacles or challenges facing the development of rural tourism in the villages of the central part of Meshginshahr. The current research is applied in terms of purpose and descriptive-analytical in nature. The statistical population includes 42 villages with more than 20 households. The sample size was estimated to be 379 people based on Cochran's formula. To analyze the issue, 47 indicators were used in five indicators, namely social, economic, environmental, physical, and managerial. The results showed that the weak participation of local people in tourism affairs, risky investment, lack of shopping centers, lack of suitable space for car parking, lack of advertising and information, lack of educational centers and activities, and short stay of tourists were recognized as the most important problems of tourism in this region.

Studies have shown that the role of thermal temperature measurement in studying and estimating surface temperature is very important. Earth surface temperature is an important indicator in the study of equilibrium energy models on the ground at the regional and global scale. Due to the limitation of meteorological stations, remote sensing can be a good alternative to earth surface temperature estimation. The main objective of this study is to monitor the surface temperature of the Earth using satellite imagery and a relationship that can have a surface temperature with land use. For this purpose, the relevant images were first obtained and the necessary pre-processes were applied to each one. Then it was compared to modeling and classification of images. Firstly, in order to study land use change, land use classification map was extracted for each two years using a controlled classification method. Then, to study the land use change, the land use change map was extracted for a period of 28 years (1987-2015). Became finally, in order to monitor the surface temperature, the surface temperature map of Meshginshahr was extracted. The results showed that there is a strong relationship between land use and surface temperature. High-vegetation areas and low-temperature blue areas. Also, rainfed farming has the highest average temperature relative to adjacent areas, which indicates the dryness of agricultural products in the Meshginshahr city.