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<br />. <br /> <br />Deliverables: <br />1. A revised "diversions' file containing all locations of White River diversion structures tied to <br />White River irrigated lands. <br />2. A list of structures modeled in Phase II. <br />3. A file of Phase II baseflow node locations in a format suitable for import into ArcView, <br />4. A ArcView project file with the layers indicated in 3, above. <br />5. A 36 by 48 inch map generated from ArcView. <br /> <br />Task 2.03 <br /> <br />Aggregate Irrigation Structures <br /> <br />Objective: For the White River Basin physically aggregate the irrigation structures not explicitly <br />modeled in Phase 11 by manually drawing aggregation boundaries on the map, All irrigation structures <br />falling within a boundary will be aggregated into a single structure, A table will be generated from <br />ARC/INFO listing the individual WOlDs associated with each aggregation boundary. <br /> <br />. <br /> <br />Approach: <br />1. STATE: In an interactive ArcView session with RTIWR based on the ArcView project created in <br />Task 2,02, group acreage together by drawing a polygon on the screen after considering the following: <br />* baseflow hydrology (primary factor) <br />-spatial proximity <br />-Endangered Species instream flow reaches <br />-existing structures modeled <br />-new tributaries <br />-critical administrative reaches <br />-return flows <br />-aggregated irrigated area not to exceed 1000 acres <br />As a polygon is drawn, assign names and ids consistent with established naming conventions <br />(AGG_Trib_WO) to the aggregations nodes and structures. Use ArcView commands to prepare an <br />export table of the WOlDs and associated acreage in the polygon and output to a file with the name of <br />the aggregated group. Generate statistics on acreage included in the polygon, <br /> <br />Locate nodes representing the aggregated structures within the river network. It is anticipated <br />that nodes representing aggregated irrigation structures will be inserted just below 15 baseflow nodes, <br />and that 5 additional nodes may be needed to maintain an essential level of resolution in simulating <br />irrigation use. <br /> <br />This process would be repeated with additional aggregations until all aggregated groups are <br />defined (or redefined). <br /> <br />. <br /> <br />2. RTIGIS: In ArcView cleanup the aggregated boundary layer by placing different shading in each <br />aggregated group. Print a 24 by 36 copy of the map, <br />3. RTIWR: Using a spreadsheet, import the aggregation lists of WOlDs and acreage and report on any <br />WOlDs in more than one aggregation group, Provide a summary of WOlDs in more than one <br />aggregation group to the State. <br /> <br />Phase IlIa Scope of Services <br /> <br />1176 A-8 <br /> <br />Jan 31, 1997 <br />