Apoyo cartográfico a la fase de diagnóstico para el área de riesgo del plan de ordenación y manejo de cuencas hidrográficas (pomca) de la cuenca de rio negro

Abstract

At the beginning, the CAR delivered the GIS Threat Vulnerability and Risk information of 18 of the 28 municipalities that make up the Rio Negro watershed, it was necessary to review, organize and inventory the information provided in order to be able to be subsequently consulted by other people, a matrix was also created in which the completeness of the AVR information present in the municipalities would be evaluated, within which the spatial existence of the information for torrential floods, mass movements, would be taken as a criterion. floods and forest fires, using a database provided by a trainee, which contained information on historical risk events occurred in the municipalities of the basin, it was possible to make the spatial distribution of them, using as criteria for the creation of the database the date of occurrence, municipality, path of occurrence and source that reported the event, at After the digitization of the points, the present observations were used for each one of them, such as, the path where the event was presented, on which road, river, stream or populated center, to later edit the attributes (Date of occurrence and Source) of each point, the model proposed to locate the points for each municipality independently, and at the same time create different entities that store the reported risk events for each municipality, finally it was possible to digitize more than 1500 points of risk, in 18 municipalities of 28 of the Rio Negro watershed, with reports from 1960 to 2015.