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The regression analyses of at-a-station hydraulic geometry parameters of the Seyhan River were performed by employing the average stream flow velocity, the width of the water surface, the average depth of the water and the mean daily flow discharge of a single flow measurement station, over a period of five years, ranging from 2006 to 2010. The relationship between the mean daily discharge and at-a- station hydraulic geometry parameters of stations are

Figure 2 The regression analyses of at-a-station hydraulic geometry parameters of the Seyhan River were performed by employing the average stream flow velocity, the width of the water surface, the average depth of the water and the mean daily flow discharge of a single flow measurement station, over a period of five years, ranging from 2006 to 2010. The relationship between the mean daily discharge and at-a- station hydraulic geometry parameters of stations are

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Table 1. Downstream hydraulic geometry exponents. In terms of geographical structure, the Seyhan River Basin consists of high steppes, mountainous areas, transition zones, low planes and Cukurova Delta. The part of the basin up to the Seyhan Dam is defined as the upper Seyhan, while the lower Seyhan is located between the river mouth of the dam and the Mediterranean Sea. The lower basin is dominated by the Mediterranean climate, however the middle and the upper basins are in Cukurova P agricultural fluenced by the continental climate (MEU, 2011). ain is one of the most fertile and productive ands of Turkey and of the world. Therefore, intensive agricultural activities are carried out in the Lower Seyhan River Basin. In addition to the agricultural pollution, domestic and both the Sey industrial waste waters are also discharged into han River and to the drainage canals from many points in the Adana Province and around.
Table 1. Downstream hydraulic geometry exponents. In terms of geographical structure, the Seyhan River Basin consists of high steppes, mountainous areas, transition zones, low planes and Cukurova Delta. The part of the basin up to the Seyhan Dam is defined as the upper Seyhan, while the lower Seyhan is located between the river mouth of the dam and the Mediterranean Sea. The lower basin is dominated by the Mediterranean climate, however the middle and the upper basins are in Cukurova P agricultural fluenced by the continental climate (MEU, 2011). ain is one of the most fertile and productive ands of Turkey and of the world. Therefore, intensive agricultural activities are carried out in the Lower Seyhan River Basin. In addition to the agricultural pollution, domestic and both the Sey industrial waste waters are also discharged into han River and to the drainage canals from many points in the Adana Province and around.
total number of seven gaging stations for a period of five years, from 2006 to 2010. The daily discharge and the cross- sectional parameters belonging to the same day were employed in the daily analyses. While the annual analyses were conducted by using the mean annual discharge and the cross-sectional parameters obtained in that year. Average annual discharge values were acquired from daily discharge measurements. All relevant data was obtained from the general directorate of the state hydraulic works (DSI), which is the main investing government institution responsible of all streamflow gaging stations in Turkey. Generally the cross- sectional area and the other relevant parameters are measured and plotted once a year for every single station. In case of a flood or a similar phenomenon the measurements are performed just after the incident, in order to detect the cross- sectional changes. The discharge measurements are performed on daily bases, either by a stream stage reading or by an automated system with telemetry capability. The streamflow gaging stations used in the analyses are given in Table 2. Table 2. Flow measurement stations.
total number of seven gaging stations for a period of five years, from 2006 to 2010. The daily discharge and the cross- sectional parameters belonging to the same day were employed in the daily analyses. While the annual analyses were conducted by using the mean annual discharge and the cross-sectional parameters obtained in that year. Average annual discharge values were acquired from daily discharge measurements. All relevant data was obtained from the general directorate of the state hydraulic works (DSI), which is the main investing government institution responsible of all streamflow gaging stations in Turkey. Generally the cross- sectional area and the other relevant parameters are measured and plotted once a year for every single station. In case of a flood or a similar phenomenon the measurements are performed just after the incident, in order to detect the cross- sectional changes. The discharge measurements are performed on daily bases, either by a stream stage reading or by an automated system with telemetry capability. The streamflow gaging stations used in the analyses are given in Table 2. Table 2. Flow measurement stations.
by employing the linear regression analysis procedure. The average velocity of the stream flow, the water surface width and the average depth of the river are the parameters which were related to the river flow discharge. The regression analyses were performed for both at-a-station and downstream hydraulic geometries.
by employing the linear regression analysis procedure. The average velocity of the stream flow, the water surface width and the average depth of the river are the parameters which were related to the river flow discharge. The regression analyses were performed for both at-a-station and downstream hydraulic geometries.
Table 3. Daily discharge and hydraulic characteristics of Seyhan River. presented in Figure 2. The exponents and the coefficients of the power function of the discharge are determined by using the linear line fitted to the data. The mean daily discharge used to define the exponents and the coefficients of the power function belong to the same day that the cross- sectional measurements were conducted. The coefficients and exponents of the power function for at-a-station hydraulic geometry parameters of all seven stations are given in Table
Table 3. Daily discharge and hydraulic characteristics of Seyhan River. presented in Figure 2. The exponents and the coefficients of the power function of the discharge are determined by using the linear line fitted to the data. The mean daily discharge used to define the exponents and the coefficients of the power function belong to the same day that the cross- sectional measurements were conducted. The coefficients and exponents of the power function for at-a-station hydraulic geometry parameters of all seven stations are given in Table
The downstream hydraulic geometry parameters of the Seyhan River were determined by utilizing the average flow velocity, the water surface width, the average water depth and the mean daily flow discharge of seven flow measurement stations given in Table 2. The stations are located on the main river and its tributaries owing to the channel characteristics. The regression analyses were performed for a period of five years, ranging from 2006 to 2010. The relationship between the mean daily discharge and the downstream hydraulic geometry parameters for years 2006 to 2010 are presented in calculated exponents and the power function were defined fitted to the data. The mean dai the exponents and the coeffici og-log scale in Figure 3. The coefficients of the empirical by employing the linear line y discharge used to designate ents belong to the same day hat the cross-sectional parameters were measured. The coefficients and exponents o geometry parameters for five Table 5. The exponents, b, f, m he downstream hydraulic g t f the downstream hydraulic different years are given in and the coefficients, a, c, k of eometry parameters of the Seyhan River were found to be 0.1132, 0.557, 0.330 and 22.7246, 0.1708, 0.2758, respectively.
The downstream hydraulic geometry parameters of the Seyhan River were determined by utilizing the average flow velocity, the water surface width, the average water depth and the mean daily flow discharge of seven flow measurement stations given in Table 2. The stations are located on the main river and its tributaries owing to the channel characteristics. The regression analyses were performed for a period of five years, ranging from 2006 to 2010. The relationship between the mean daily discharge and the downstream hydraulic geometry parameters for years 2006 to 2010 are presented in calculated exponents and the power function were defined fitted to the data. The mean dai the exponents and the coeffici og-log scale in Figure 3. The coefficients of the empirical by employing the linear line y discharge used to designate ents belong to the same day hat the cross-sectional parameters were measured. The coefficients and exponents o geometry parameters for five Table 5. The exponents, b, f, m he downstream hydraulic g t f the downstream hydraulic different years are given in and the coefficients, a, c, k of eometry parameters of the Seyhan River were found to be 0.1132, 0.557, 0.330 and 22.7246, 0.1708, 0.2758, respectively.
Table 4. The exponents and coefficients of at-a-station hydraulic geometry parameters. 3.2. Downstream Hydraulic Geometry
Table 4. The exponents and coefficients of at-a-station hydraulic geometry parameters. 3.2. Downstream Hydraulic Geometry
Figure 2. Relationships between discharge and at-a-station hydraulic geometry parameters.
Figure 2. Relationships between discharge and at-a-station hydraulic geometry parameters.
Table 5. The exponents and coefficients of the downstream hydraulic geometry parameters. station and downstream hydraulic geometry, have been found to be consistent with the previous studies. Also, it has been verified that, the parameters satisfy continuity equations. The estimated hydraulic geometry parameters can help to comprehend the variation in the cross-sectional characteristics of the Seyhan River. The results can be used to predict the cross-sectional parameters of any branch of the Seyhan River or other rivers where the hydrological properties are similar. The relationships obtained here can be used for watershed management, flood control, hydropower generation, etc. studies in the basin.
Table 5. The exponents and coefficients of the downstream hydraulic geometry parameters. station and downstream hydraulic geometry, have been found to be consistent with the previous studies. Also, it has been verified that, the parameters satisfy continuity equations. The estimated hydraulic geometry parameters can help to comprehend the variation in the cross-sectional characteristics of the Seyhan River. The results can be used to predict the cross-sectional parameters of any branch of the Seyhan River or other rivers where the hydrological properties are similar. The relationships obtained here can be used for watershed management, flood control, hydropower generation, etc. studies in the basin.
Figure 3. Relationship between discharge and downstream hydraulic geometry parameters.
Figure 3. Relationship between discharge and downstream hydraulic geometry parameters.
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