Geostatistical Analysis of Spatial and Temporal Changes of Pressure Breakers and Water Reservoirs in District 2 of Tehran
Subject Areas : Journal of Radar and Optical Remote Sensing and GIS
Mehrdad Tavakolzadeh
1
(
M. Sc. in Remote Sensing and GIS, Islamic Azad University, Science and Research Branch, Tehran, Iran
)
Keywords: Kriging, Geographic Information System, Water Pressure Fluctuation, Reservoirs,
Abstract :
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.
