Clasificación de los metadatos de los valores de gravedad de la red signar por medio del aplicativo geonetwork
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In Latin America, the production of geospatial information in terms of precision and quality has fully complied with the technical specifications required for cartographic creation and / or updating. However, on the one hand, horizontal geographic information, as it is submitted under the same global reference framework, can continue to provide precise information on the location or location of any point on the earth's surface. While the vertical geographic information, as the mean sea level is defined locally as the frame of reference, has presented inconsistencies due to the fact that the tide-level records have been made during different periods of time. Consequently, the leveling lines have been developed in the countries by means of high precision geometric leveling, without ever being a correction for the effects of gravitational fields; Due to this, the exchange of altimetry information between countries is not compatible. Some entities such as the Agustín Codazzi Geographical Institute aims to provide a high quality starting point in terms of vertical reference frame that satisfies the precision levels, for this purpose it seeks to carry out a block adjustment of the gravity values taken in Colombia to find in different ways the physical heights from geopontecial numbers. Within this framework, this report describes the classification of the metadata of the severity values of the third order signar network by means of a “GEONETWORK” platform; it will detail the technical characteristics used in each gravity value. To do this, first the complete recognition of the database to be used will be established, and later both the procedure for accessing the "Geontework" application and the import of the template and the proper registration of the metadata will be described. Finally, the results obtained are described, expressed in a database with the complete record of the classified metadata.