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<br />000592 <br /> <br />EVALUATION OF EXISTING DATA <br /> <br />In this evaluation all available data are considered and analyzed in <br />relation to the program objectives. A separate evaluation is made for each <br />of the four types of data. <br /> <br />Current-Purpose Streamflow Data <br /> <br />More than half of the gaging stations In Kansas are being operated to <br />provide current-purpose data. It is assumed that this need for data is <br />being met and that this part of the program can be' modified as necessary as <br />the requirements change. A summary of the 119 stations needed to provide <br />data for specific uses is shown below (many stations provide data for more <br />than one use). <br /> <br />Use of data <br /> <br />Number of stations <br /> <br />I. Current assessment of water availability <br />2. Operation of water-related projects <br />3. Forecasting water hazards <br />4. Monitoring of effects of waste disposal <br />5. Management of water quality <br />6. Apportionment of water according to <br />interstate compacts <br />7. Research or special study <br /> <br />18 <br />55 <br />43 <br />I <br />79 <br /> <br />5 <br />23 <br /> <br />Gaging stations that are operated to satisfy the need for current- <br />purpose data are listed and coded according to the specific use of data in <br />table 3. The brackets around C in this table indicate that a continuous <br />record of discharge is no longer needed to supply the requIred information. <br />For example, flood forecasting requires only a record of stage and tbe cur- <br />rent relation between stage and discharge. For some water-quality stations <br />only the discharge at the time the sample was taken Is nee~ed. <br /> <br />Data for Planning and Design of Water Projects <br /> <br />The statistical characteristics of streamflow can be defined by sample <br />gaging, analytical methods of generalization, systems approach, or by any <br />combination of the three. To determine how well the goals for this type of <br />data can be met with existing information, all available data were con- <br />sidered and analyzed. The following discussion follows the framework shown <br />in figure 3. <br /> <br />Minor streams with natural flow <br /> <br />Because of the large number of minor streams, some method of reglon- <br />alization of available data must be used to define the flow characteristics <br /> <br />17 <br />