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3 and 64 will be produced and draft products will be produced for other districts, to be <br />finalized during Phase 3. <br />Plots <br />1. Irrigated field polygons <br />2. Ground truth plots <br />3. Crop types for irrigated lands <br />4. Draft maps containing review notes from water commissioners, districts <br />and/or water users <br />Raster Files <br />Classification of irrigated lands and crop type in raster format <br />Interim files for verification of results, such as Feature Space, Tassel Cap and <br />Threshold (or distance). <br />Arc Themes/Coverages <br />Irrigated field polygons <br />Ground truth plot locations and attributes <br />Crop type for irrigated fields <br />Other Files <br />Signature Separability (array form) <br />Signature File (Final - .sig) <br />Signature File (every class- before merge add/delete/etc functions) <br />89.4 Metadata will be developed for all GIS deliverables developed in this task using Federal <br />Geographic Data Committee (FGDC) compliant metadata format. Included in the metadata <br />will be a description of known data quality problems and a listing of steps involved in <br />developing each GIS coverage and modifications for inclusion in the SPDSS. Also, a <br />description of the QA/QC procedure will be included along with the persons reviewing the <br />information and the contact of the person responsible for the final review and approval of the <br />product. <br />Task 90 -Image Base Map and Irrigated Field Boundaries <br />Objective: <br />Develop a digital, seamless image base map for the entire South Platte and North Platte River <br />basins. Delineate field boundaries for all irrigated parcels. <br />Approach: <br />90.1 Obtain and Process Data. Conduct a search of available base map data, acquire digital <br />images and develop a digital GIS image base for use in irrigated lands mapping and <br />assessment. The best data for this purpose are digital orthophoto quarter quadrangles <br />(DOQQs). As of July 2002, these data are available for over 90 percent of the study area. The <br />remaining areas are scheduled to have DOQQs available in 2003 except for 30 quadrangles. <br />For these areas, moderately high-resolution (6m)-satellite imagery from the India Remote <br />SPDSS Spatial System Integration Component 4 <br />