Resumen

SUAREZ-MEDINA, María de los Ángeles et al. Application of the ArcHydro Data Model to Calculate Surface Water Availability. Tecnol. cienc. agua [online]. 2015, vol.6, n.1, pp.175-181. ISSN 2007-2422.

The concept of geographic databases is currently being used to integrate spatial data and time series corresponding to water resources in a region. Geographic information systems (GIS), which are based on this concept, not only integrate both types of information into one database but also determine relationships among the information. The present study presents a GIS tool to estimate surface water availability based on the continuity equation, as established by Official Mexican Norm 011-CNA-2000 "Conservation of Water Resources - Establishment of Specifications and the Method to Determine National Annual Mean Availability of Water," published in the Official Journal of the Federation, April 17, 2002. Therefore, a geographic database of the ArcHydro data model needs to be generated, which applies mathematic models and stores information about the water resources, monitoring points and historical data in a hydrological basin. The advantages are the centralization of information and reducing the inconveniences involved in using different formats.

Palabras llave : availability; Arc Hydro; geodatabase; GIS; watershed; hydrological región.