Digital Watersheds and Water Observations Data
Abstract
A digital watershed requires both a description of the physical environment through which water flows and a description of the flow of the water itself. Geographic information systems are appropriate for describing the physical environment. The Arc Hydro geographic data models for surface and groundwater systems are one way by which the physical environment of a watershed can be described in a GIS, and OGC web feature services provide a mechanism for accessing such data through the internet.. The CUAHSI Observations data model is useful for describing time series of water observations measured at point locations, such as streamflow, water quality, groundwater levels and climate data. CUAHSI WaterML web services provide access to such time series data through the internet. The combination of web feature services and WaterML web services provides both geographic and observational data services for digital watersheds. This paper will present an example application of such services using the San Marcos river basin and its underlying Edwards Aquifer in Texas as an example.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2008
- Bibcode:
- 2008AGUFMIN34A..01M
- Keywords:
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- 1818 Evapotranspiration;
- 1819 Geographic Information Systems (GIS);
- 1829 Groundwater hydrology;
- 1831 Groundwater quality;
- 1871 Surface water quality