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Evaluation of the natural conditions of the territories, usually involves a number of theoretical models which take into account different variables suitable for the study; In our case, the Namibe province (including the major city), a step structure model was selected to fit the available variables. The model reflect the necessary steps to follow for the creation of a Environmental Geography Information System (EGIS) in arid regions where graphic and alphanumeric data is sparse. The adopted model guarantees the evaluation of environmental geologist conditions of Namibe province, and integrates economic natural and technological variables of the environmental, It's structure expresses steps the evaluation process by taking first the critical information needed for implementation of EGIS and finally a series of derivate and integration action of variables and defined the cartographic results expected in each step. [ABSTRACT FROM AUTHOR]

The paper represents a hydrogeologic regionalization of Pinar del Río province in GIS platform. The principles of elaboration of this map propose the division of the territory starting from the automatic integration of a group of such natural variables as: physical-geographical characteristics, hydrology, geomorphology, hydrogeology and structure particularities. It is recognized the regional regularities and the common features of each hydrogeologic structure, such as: the sources of the underground waters, the recharge conditions, circulation and discharges of the horizons and aquifer complexes, hydrochemical and hydrodynamic zoning. [ABSTRACT FROM AUTHOR]

At present time almost any information, mainly graphic, is susceptible of being transmitted through a GIS, that reduces the time of transference of the information besides providing greater functionality. The article describes the generation, by means of technology GIS, of morphostructural map of Pinar del Río Province. Proposed is a methodology in four stages that make possible to divide the territory, according to the altitude position and relief genesis, in twelve basic morphostructural regions: abrasivemarine plain, accumulative marine plain, erosive marine plain, flu-vial-marine plain, fluvial plain, marshy plain, small heights, medium heights, high heights, sub mountains and small mountains. [ABSTRACT FROM AUTHOR]