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¦ Surface water-measurement point locations and descriptions on rivers, streams, canals, lakes and <br />reservoirs, <br />¦ Routine surface water data, including water levels, EC, temperature, pH, DO, ORP, water levels <br />and flow velocities (if point not located proximate to an existing gaging station); <br />¦ Periodic surface water data on TDS, dissolved Se, U, Fe, specific salt ions, and other <br />concentrations; <br />¦ Ground water observation well locations and attributes; <br />¦ Aquifer hydraulic conductivity data from slug tests; <br />¦ Routine ground water data, including water table levels, EC, temperature, pH, DO, ORP, etc.; <br />¦ Periodic ground water data on TDS, dissolved Se, U, Fe, specific salt ions, and other <br />concentrations; and <br />¦ Canal seepage data. <br />A diagram displaying a portion of the proposed relational database is shown in Figure 4. All <br />data points will include georeferencing information in UTM coordinates. All other project data <br />related to streamflows, diversions, water rights, consumptive use and climate data will be <br />accessed from HYDROBASE. In addition, close cooperation will be maintained with the <br />CWQCD and the USGS in the sharing of pertinent database information. <br />Task 7: Development of Web-Based GIS for Display of Project Data <br />It is proposed that the database developed in Task 6 be incorporated into a GIS-based Internet <br />Information System (IIS) using the ArcIMS (ESRI, Inc.) internet mapping server, which is <br />similar to the Colorado Decision Support System's (CDSS) online map view. The services <br />considered will include: feature-oriented (i.e., true GIS on the Web), image-based, or sharing of <br />GIS metadata using ArcSDE. Active server pages (asp.net) will be developed for calling the <br />data in the IIS. Figure 5 shows a display from the IIS developed for web-based GIS access to <br />data collected by CSU for the LARB. The IIS is accessed at <br />http://www.csuarkriver.colostate.edu/ , and by clicking on the INTERACTIVE MAP link. The <br />various data layers can be made Visible and/or Active at the discretion of the user. Numerous <br />map tools are included in the interface for panning the display, zooming in and out, measuring <br />distances, accessing attribute information for any location and type of data, and printing map <br />displays. Geospatial selection of a particular type of data at a particular location can be <br />displayed in tabular form or plotted on a graph and printed. <br />Task 8: Quantitative Analysis of Gathered Data <br />Data gathered in the study regions under support of this project wili be analyzed for descriptive <br />statistics, patterns, and inter-relatianships. Spatial and temporal averages, measures of <br />variability, and correlations will be estimated. Plots and contour maps will be prepared and <br />spatial and temporal trends will be explored. Inter-relationships among variables will be <br />examined using multivariate regression and other techniques. A description of the results will be <br />11