IBGE releases continuous vector cartographic base for the state of Rio de Janeiro
January 30, 2017 02h13 PM | Last Updated: January 17, 2018 05h17 PM
IBGE releases today, in partnership with the Secretariat for the Environment of Rio de Janeiro(SEA-RJ), the continuous vector cartographic base of Rio de Janeiro state. It is the first one at the 1:25,000 scale and presents, for the first time, information sanctioned by the National Commission of Cartography (Concar). The digital files from this base are compatible with geographic information systems (GIS) and can be downloaded for free here.
This is the first continuous vector cartographic base of a Federation Unit to be produced by the IBGE at the 1:25,000 scale, which enables, among other applications, territory planning at municipal level, the main highlights being the elaboration of municipal urban master plans.
For the first time, all the 13 information categories listed in the Technical Specifications for the Structuring of Geospatial Vector Data (ET-EDGV) are represented on a cartographic base: relief; hydrography; vegetation; reference points; localities; boundaries; economic structure; transportation system; energy and communications; water supply and basic sanitation; health and social service; education and culture; and public administration. The base can also be found at INDE and the metadata, in a specific catalog at the IBGE web site.
The aerophotogrammetric coverage of 2005-2006 resulted in a total 5,200 aerial photographs processed and field works which measured more than 1,500 control points all over the state. Between 2007 ad 2009, orthomosaics and digital elevation models were produced and made available for the society. Between 2011 and 2014, the cartographic features were recovered, validated and stored in a geospatial database, which makes it possible for users to conduct analyses and consultations. Finally, between 2015 and 2016, the cartographic base underwent quality control, with the application of ISO norms for geospatial data.
In the field of environmental management, this base has other several aplications, including the planning of Conservation Units, delimitation of Permanent Preservation Areas (APP), studies of river basins, basic projects for environmental recovery, besides positioning analyses of enterprises subject to environmental licensing. Also worth of mention is the relevance of thiscartographic base for the generation of Charts of Gravitational Mass Movement and Flood Susceptibility, as part of the National Plan for Risk Management and Response to Natural Disasters.