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Assessing the horizontal positional accuracy in openstreetmap: A big data approach
Conference ObjectAbstract: OpenStreetMap is perhaps the most successful project from those that produce Volunteered GeographicPalabras claves:Big geodata, OPENSTREETMAP, Positional accuracyAutores:Alfonso R. Tierra, Castro R., Marco P. LunaFuentes:scopusA potential early warning system for earthquakes based on two independent real-time precursors – the case of ecuador´s 7.8 mw in 2016
Conference ObjectAbstract: We propose a new potential early warning system for earthquakes based on a case study of the 7.8 MwPalabras claves:early warning system, Earthquake detection, GPS, Precursor, radiationAutores:Alfonso R. Tierra, Carrión J.L., Cisneros D., Herrera M., Marco P. Luna, Murillo A., Perez-Salinas J.C., Porras L., Salazar Martínez Rodolfo Jaime Fernando, Tapia S., Theofilos Toulkeridis, Toulkeridis-Estrella K., Walter FuertesFuentes:scopusCapture and processing of geospatial data with laser scanner system for 3D modeling and virtual reality of Amazonian Caves
Conference ObjectAbstract: In recent years there has been an advance in new geotechnologies that contribute to the research inPalabras claves:Laser scanning, Speleothems, subterranean cavities, virtual environmentAutores:Addison A., Alfonso R. Tierra, EDUARDO PATRICIO KIRBY POWNEY, Iván Fernando Palacios-Orejuela, Jhoselinne Basantes, Luis Godoy, Padilla-Almeida O., Rafael Castro, Tatiana Carvajal, Theofilos Toulkeridis, Walter Fuertes, Walter Marcelo Fuertes-Díaz, Wilbert G. AguilarFuentes:googlescopusArtificial neural network: A powerfiil tool for pbkp_redicting gravity anomaly from sparse data
ArticleAbstract: Generally, the gravity surveys are developed along roads or other communication ways. This leads toPalabras claves:Artificial Neural Network, Free air and bouguer anomalies, Pbkp_redictingAutores:Alfonso R. Tierra, de Freitas S.R.C.Fuentes:scopusEvaluation of Horizontal and Vertical Positions Obtained from an Unmanned Aircraft Vehicle Applied to Large Scale Cartography of Infrastructure Loss Due to the Earthquake of April 2016 in Ecuador
Conference ObjectAbstract: The development technology of Unmanned Aircraft Vehicles (UAV) allows the improvement of new applicaPalabras claves:DSM, ECUADOR, GPS, Ortho-mosaic, Spirit leveling, UAVAutores:Alfonso R. Tierra, Juan Sani, Oswaldo Padilla, Theofilos ToulkeridisFuentes:googlescopusEvaluation of a few interpolation techniques of gravity values in the border region of Brazil and Argentina
Conference ObjectAbstract: Least Squares Collocation (LSC) and kriging are the most used techniques to pbkp_redict gravity valuPalabras claves:Autores:Alfonso R. Tierra, de Freitas S.R.C., Del Cogliano D., dos Santos D.P., Faggion P.L., Ferreira V.G., Luz R.T., Pereira R.A.D.Fuentes:scopusEvaluation of automatic cloud removal method for high elevation areas in Landsat 8 OLI images to improve environmental indexes computation
Conference ObjectAbstract: Thin clouds in the optical remote sensing data are frequent and in most of the cases don't allow toPalabras claves:Cirrus Band, Landsat, NDVI, QUITO, Remove CloudAutores:Alfonso R. Tierra, César Iván Alvarez-Mendoza, Teodoro A.C.Fuentes:scopusDifferential corrections by NTRIP to mobile devices with android application
ArticleAbstract: Real time GPS positioning is obtained by means of differential corrections sent from a base stationPalabras claves:android, Differential Correction, GPS, NTRIPAutores:Alfonso R. Tierra, César A. Leiva, Oscar SilvaFuentes:scopusMultiresolution analysis in the visible spectrum of landsat-tm images through wavelet transform
ArticleAbstract: Multispectral satellite images are tools that allow the analysis of phenomena developed on the EarthPalabras claves:COMPRESSION, MRA, noise, Satellite image, waveletsAutores:Alfonso R. Tierra, Eduardo Kirby, Iván Palacios Palacios, Marilyn CepedaFuentes:scopusNonlinear and discontinuities modeling of time series using artificial neural network with radial basis function
ArticleAbstract: At present, the Global Navigation Satellite System (GNSS) is used to obtain one Geodetic Reference SPalabras claves:Discontinuity, Gap, GPS, Nonlinear, Radial basis function network, TIME SERIESAutores:Alfonso R. TierraFuentes:scopus