Landscape and Agricultural AreaMeasurement and Water Use Budgets

摘要

The Santa Clara Valley Water District (District) applied for and was awarded CalFedgrant funds to accurately measure the classified large landscape areas of urban parcelsand agricultural farmland within Santa Clara County. The project, which began in early2002, acquired multi-spectral images of Santa Clara County, performed image analysis(classification) to identify the area of 18 different classifications for each parcel (site) andprepared a database of these area measurements to support Landscape Water Budgets aswell as support the ITAP Landscape Survey and Agricultural Mobil Lab Programs.As described in the original grant application, the District is developing a database-backedwebsite (WebITAP) to deliver real-time Landscape Water Budget information toproperty and landscape managers via the web. WebITAP will utilize the areameasurements from this project to calculate the site-specific water budget (Figure 1).The District will routinely update each budget using Eto data from the CaliforniaIrrigation Management Information System (CIMIS) so that the budgets reflect actual siteirrigation demands. Currently WebITAP is in the beta testing phase and will soon bereleased to the public.