This paper will describe the development and evolution of GIS to support environmental quality monitoring and hazards mitigation activities in two citizen-based water watch movements: Alabama Water Watch and Nucleo Pro Tiete in Sao Paulo, Brazil. In both cases, citizen volunteers concerned with creating baseline databases for local watershed areas formed as a result of severe problems in local ...

In GeoFish, we have provided a prototype of integrating a GIS with oceanographic and fisheries models. Scientists are able to use a graphical interface to display datasets, select the data to be used, set the weights for factors in the model and execute the model. The results are returned to the GIS for display and spatial analysis. The project creates a framework for linking to other types of ...

In an effort to contribute to the conceptualization of the burgeoning field of Volunteered Geographic Information (VGI), we propose to review selected definitions and debates around Geographic Information Systems (GIS). “Traditional” geographic information emerges from the interplay of the components of GIS: hardware, software, data, and application, and it is shaped by the processing of geogra...

In the Earth science disciplines, both the observational instrumentation and numerical forecasting technology used to generate data are improving so rapidly that the techniques available to manage and use the resultant datasets are struggling to keep pace. A notable example is represented by the atmospheric science discipline. As observational and model output datasets in the atmospheric scienc...

This paper outlines and demonstrates a strategy for coupling of integrated hydrologic model and Geographic Information System (GIS) to meet pre/post processing of data and visualization. Physically based fully distributed integrated hydrologic models seek to simulate hydrologic state variables and their interactions in space and time. The process requires interaction with a range of heterogeneo...