uWATER: Ubiquitous WebGIS Analysis Toolkit for Extensive Resources Version 1.1 User’s Manual

uWATER is a tool developed for non-technicallyminded citizens and decision-makers to access scientific modeling results and spatial datasets through an interactive online Geographic Information System (WebGIS). This tool permitsconvenient access to computer model results that quantify the impacts of waterresource development and climate change within a study area and facilitatesuse of these data for water management policy formulation. The objective of uWATER is to bridge the gap between scientific research results and general public understanding.Because GIS software allows spatial and tabular display and processing of data, it provides unparalleled opportunities for assessment and improved management of natural resources. ArcGIS Desktop, developed by the Environmental Systems Research Institute (ESRI), is currently one of the most popular commercial GIS software packagesin the field. ArcGIS Explorer (AGX), ESRI’s free web-based GIS tool, can display a variety of GIS data. However, many of the analyticalcapabilities of ArcGIS Desktop, including spatial and attribute queries, are not available in AGX. uWATER is an AGX plug-in program that adds GIS calculation and query functions to thefunctions native to AGX, thus providing for arange of applications in environmental resources management.published or submitted for publicationis peer reviewedOpe