فهرست مقالات Mehrdad Tavakolzadeh


  • مقاله

    1 - Modeling Spatial and Temporal Changes in Water Resources Quality by Cultivating a Variety of Agricultural Products
    Journal of Radar and Optical Remote Sensing and GIS , شماره 4 , سال 3 , تابستان 2020
    Groundwater resources are considered as the main and most important sources of drinking water,agriculture and industry. It is necessary to study the quality change and decline in the balance ofthese resources as a result of improper drawing, inappropriate temporal and s چکیده کامل
    Groundwater resources are considered as the main and most important sources of drinking water,agriculture and industry. It is necessary to study the quality change and decline in the balance ofthese resources as a result of improper drawing, inappropriate temporal and spatial distribution ofwater resources in Iran and low irrigation efficiency in agriculture, has made water the mostlimiting factor of production in agriculture. In the present study, the fields under cultivation withvarious crops were studied in terms of the effect of cultivating different plants on groundwaterresources in the lands of Moghan Agriculture, Industry and Animal Husbandry Company atdifferent time period according to the type of crop cultivated. For this purpose, spatial andtemporal modeling of the change process was carried out. The results showed that due tosuccessive cultivation and the use of crops that need a lot of water for cultivation, water in two wells in the region has become saline and the water level has decreased. پرونده مقاله

  • مقاله

    2 - Geostatistical Analysis of Spatial and Temporal Changes of Pressure Breakers and Water Reservoirs in District 2 of Tehran
    Journal of Radar and Optical Remote Sensing and GIS , شماره 4 , سال 4 , تابستان 2021
    Pressure, as one of the practical and controllable factors in water distribution networks, has an essential role in how water is distributed. On the other hand, pressure control in implemented networks, is possible only by adjusting the control valves. In order to stand چکیده کامل
    Pressure, as one of the practical and controllable factors in water distribution networks, has an essential role in how water is distributed. On the other hand, pressure control in implemented networks, is possible only by adjusting the control valves. In order to standardize and improve the quality of water supply projects along with minimizing economic problems, the use of relevant rules, criteria, and standards is inevitable and necessary. In the present study, using the spatial information of the study area, including the raster layer of the digital model of region’s elevation and the layer point of the location of pressure breakers and water tanks, a data bank was first prepared. Interpolation maps were generated with 95% accuracy, and six-month periods were compared based on these maps. The results showed that the first and fourth periods of the study of water pressure fluctuations were similar. This study established the effect of time on the spatial distribution of water pressure based on the final maps. پرونده مقاله