547 



Current Status 



Ongoing - The District is currently in the process of reviewing and 

 approving a Cooperative Agreement between Reclamation and the District 

 for a Water Management and Conservation Demonstration Program. 

 Implementation of the agreement will be in two phases as explained 

 above. Reclamation's involvement under Phase 1 of the agreement will be 

 to cost share in the installation of the initial base weather station 

 including linking it with the regional AgriMet network, support the 

 establishment of the District's on-farm irrigation scheduling 

 demonstration program through technical assistance in crop water use 

 modeling and field scheduling techniques, and obtain funding for a 

 dedicated computer and soil moisture monitoring equipment. Cost for 

 implementation of Phase 1 is estimated to be $74,157. Reclamation and 

 the Washington State Department of Ecology will contribute 21% each and 

 the District will fund the remaining 46*. 



Contact : Brian Hamilton, Water Operations Systems Specialist. Pacific 

 Northwest Regional Water Conservation Center. Boise. Idaho. 208-378-5282. 



Global Climate Change Response Program 



Background 



The potential long term variability of water dependent ecosystems is of major 

 interest to Reclamation. One of the primary objectives of Reclamation's 

 Global Climate Change Response Program (GCCRP) is to research and develop 

 technologies to assist existing or ijroposed irrigation projects in dealing 

 with potential changes in crop water demand and/or available water supplies. 



In the Pacific Northwest Region, research is being conducted in the Rogue 

 River basin in southwestern Oregon. The program objective is to make a number 

 of tools available to operators of the facilities to improve management 

 decisions. These tools consists of three databases, a demand model, a supply 

 model, ditchrider software, efficiency block software, billing software, 

 database software, and interfacing software. All software has been developed 

 with FOXPRO 2.0. 



The ditchrider software is used for entering distribution system data on lap- 

 top computers and is copied into the office databases periodically. The other 

 office database is used by accounting software for water assessment billing. 

 The day-to-day operations by the irrigation districts and coordination of the 

 storage, conveyance, and delivery systems are being interfaced with the supply 

 and demand computer models. Two new definitions are being used in the 

 program. These are "Efficiency Block" and System Coefficient." An Efficiency 

 Block is a designated area of irrigated lands from which acreage and type of 

 crops are known that lay downstream from a flow measurement point within a 

 delivery or conveyance system. This block may be as small as that served by a 

 sublateral or as large as an entire irrigation district. A System Coefficient 

 is the ratio of measured or computed irrigation demands (requirements) to that 

 of measured supply (deliveries) within an efficiency block. 



