hydrogeology
kamran Razaei Tavabe; azam heydari; mohamad javad sayahpour
Abstract
Quality protection of surface and groundwater as one of the most valuable national resources is vital. For this purpose, Parishan basin was selected as a sample of semi-closed inland Zagros basins and geographical weight regression (GWR) modeling was performed using 25 observation wells of the relationship ...
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Quality protection of surface and groundwater as one of the most valuable national resources is vital. For this purpose, Parishan basin was selected as a sample of semi-closed inland Zagros basins and geographical weight regression (GWR) modeling was performed using 25 observation wells of the relationship between water quality parameters and geological constructs. In this model, water quality parameters such as (EC, TDS, SAR, CL, Na, K, 4 SO) are used as dependent variables and geological formations are used as independent variables. The modeling results showed that the highest correlation based on qualitative parameters such as potassium, chlorine and electrical conductivity is related to the center and east of Parishan basin. Water quality is also effective. Then, by forming the Moran index autocorrelation, the relationship between water quality parameters and geological structures was evaluated. The model with high variability accuracy established a direct relationship between these two parameters and by doing this step, the model validation was confirmed. Finally, based on the prepared maps and the high power of the GWR model, managers and planners can use it to identify sensitive points of changing water resources for spatial modeling.
Alireza Entezari; Abolghasem Amir Ahmadi; Kazem Aliabadi; Maryem Khosravian; Majid Ebrahimi
Volume 3, Issue 8 , December 2016, , Pages 113-139
Abstract
Received: 2015.01.26 Accepted: 2016.11.02 Alireza Entezari[1]* Abolghasem Amir-Ahmadi[2] Kazem Aliabadi[3] Maryam Khosravian[4] Majid Ebrahimi[5] Abstract Land surface temperature estimated to cater to the wide range of remote sensing, lack of monitoring and limited meteorological stations. With regard ...
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Received: 2015.01.26 Accepted: 2016.11.02 Alireza Entezari[1]* Abolghasem Amir-Ahmadi[2] Kazem Aliabadi[3] Maryam Khosravian[4] Majid Ebrahimi[5] Abstract Land surface temperature estimated to cater to the wide range of remote sensing, lack of monitoring and limited meteorological stations. With regard to the monitoring of land surface temperature in a limited number of weather stations as part of the need for broad distribution across the surface temperature at the same time, land surface temperature was calculated. Parishan lake because of the proximity to the metropolis of Shiraz shows the temperature and humidity play an important moderating role in this city. Drought in recent decades and the subsequent reduction in the water level of the lake has had adverse effects on the surrounding areas, especially in Shiraz temperature and humidity. The purpose of this research is to estimate land surface temperature using SEBAL (SEBAL) (modified surface energy algorithm for land) in Parishan Basin and relationship with land use / cover (LULC). For this purpose, use ETM+ images from 2000 and 2013 and after the various stages processing of image to extract the land use plans based on support vector machine (SVM) was developed during a period of 13 years. By applying SEBAL algorithm on satellite images was prepared heat map. For this purpose implement this method, was calculated the thermal radiance corrected (Rc), the emissivity of the surface of the thermal band (ε), spectral radiance (Lλ), the reflectance of each band (ρλ) and surface albedo (α). The results of this study showed the most of that land use changes in the use of the lake there is about was destroyed 35/97% of the lakes in the course of 13 years and much of it have land use changes uncultivated land and agricultural. In addition, increased desertification and loss of vegetation, it affects increasing land surface temperature (LST). The highest temperature (LST) is evident in the salt marsh and bare rock outcrops are considerable with the passing years and the increasing temperature. The results have been applied in the study of natural resources protection and can be helpful natural resource conservation programs. [1]- Department of Geomorphology and Climatology, Hakim Sabzevari University, Sabzevar (Corresponding Autor),Email:entezari@hsu.ac.ir. [2]- MS.c of Remote Sensing and GIS, Coach of Hakim Sabzevari University, Sabzevar. [3]- MSc Student of Applied Climatology, Hakim Sabzevari University, Sabzevar. [4]- MSc Student of Applied Climatology, Hakim Sabzevari University, Sabzevar. [5]- Ph.D Student of Geomorphology, Hakim Sabzevari University, Sabzevar.
