AbstractIrrigated Landscape Mapping in Support of Water Conservation EffortsTrack: Water, Wastewater, and Storm Water Author This presentation will feature a mapping project for City of Pasadena, Department Water and Power (PWP) which aims to improve residential and commercial landscape irrigation efficiency from the results of a detailed land cover analysis from high-resolution aerial imagery. Irrigated area and impervious surfaces are being delineated using feature extraction techniques over 45,000 parcels. The areas of each category by parcel were calculated through Spatial Analyst and ArcGIS geoprocessing techniques. Lot size and irrigated areas were utilized in conjunction with evapotranspiration rates to calculate the parcel-based irrigation water requirement and compared the actual usage of each account to determine the irrigation efficiency. This level of detail in automated image analysis provides much opportunity in the fields of water conservation, stormwater management, and environmental planning. This Project is a joint partnership between the U.S. Bureau of Reclamation and PWP. Michael Tse Pasadena Water and Power 150 S. Los Robles Avenue Suite 200 Pasadena, California 91101 United States Phone: 626-744-7603 E-mail: mitse@cityofpasadena.net |