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PresentationClimate change, earthquakes, floods, thaw assessment, forest fire assessment, deforestation, desertification, civil protection, territorial planning, European Common Agrarian Policy, International Aid in Emergencies and Crises, etc., are society challenges where geospatial data and, specifically, the digital terrain elevation models (DEM), support the decision making process. Geospatial data is considered as a foundation element for good governance by the World Bank (WBG, 2009), the European Union (GINE 2003) and the United Nations (Salvemini 2009). Geospatial data are an important component of Ambient Intelligence technologies as they give ubiquity and context to captures from non-spatial sensor networks. Quality is a key component of geospatial data, according to the European (EEA 2015) and American (FEMA 2015) environmental agencies, and from a scientific viewpoint it is a challenge (Devillers et al. 2010). The idea of "functional quality" refers to the level to which DEMs allow users to obtain useful results when applying geospatial modeling and analysis operations (e.g. drainage network, river basin, etc.). The current way of reporting the quality of a DEM focuses on positional accuracy and is based on indices such as mean value (bias), deviation, or RMSE. These indices are calculated on few control points and they report from a global perspective. Consequently, for many specific applications (e.g. in hydrography, the determination of a drainage network or a micro-basin, etc.), an altimetric positional uncertainty is not very evocative of the application goal. Users would like to know whether data will actually produce quality results for their modeling (e.g. erosion, flooding, water balance, etc.). Therefore, for specific users to better understand the quality of a DEM, new measures are required that do have a strong relationship with the application results. Brouchure Here | |||||||||||||
ObjectiveThe FunQuality4DEM project aims developing evaluation and reporting methods for the "functional quality" of DEM on certain use cases. The novelties of this proposal are summarized in: 1) proposing the quality of the DEM data from a "functional perspective" (GIS analysis operations); 2º) proposing and formalizing new methods for DEM quality evaluation based on surfaces and lines; 3º) proposing and formalizing new measures and ways for reporting DEM data quality from a multivariate, local perspective and focused to specific USE CASES. To achieve the objectives, a high density LiDAR data set will be used; field work will be carried out with a Terrestrial Laser Scanner, and various statistical and mathematical tools will be used (e.g. simulations, surface adjustments, splines, multivariate statistics, etc.). The results will be considered to validation by experts in the use cases. This project is of great interest to society because its application to DEM will allow better decisions to be made in civil and environmental engineering projects from the available DEMs. Furthermore, FunQuality4DEM is of great interest to the geomatic industry, as proved by the support received from national and international organizations producing and using DEM. | |||||||||||||
MetothodFunQuality4DEM is organized into phases (Fx) and activities (Ax). In summary, the process to be developed is as follows:
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ResultsScientific and methodological achivements
Presentation of the project "FunQuality4DEM" (Functional Quality for Digital Elevation Models). Results of the project "FunQuality4DEM" (Functional Quality for Digital Elevation Models). Tools | |||||||||||||
Publications (papers, congress, etc.) :2023Mozas-Calvache, A.T.; Ureña-Cámara, M.A. (2023). Identification of Highlighted Cells in Low-Variance Raster Data Application to Digital Elevation Models. Algorithms 2023, 16(6), 302; https://doi.org/10.3390/a16060302 López-Vázquez, C.M.; Ariza-López, F.J. (2023). Global Digital Elevation Model comparison criteria: An Evident Need to Consider Their Application. ISPRS Int. J. Geo-Inf. 2023, 12, 337. https://doi.org/10.3390/ijgi12080337 Ruiz-Lendínez, J.J.; Ureña-cámara, M.A.; Ariza-López, F.J. (2023). Deep Learning Methods applied to Digital Elevation Models: State of the Art. Geocarto International, DOI: 10.1080/10106049.2023.2252389. Ariza-López, F.J.; Rodríguez-Avi, J. (2023). Quality control of DEMs by check surfaces. submitted to publication. Reinoso-Gordo, J.F.; Ariza-López, F.J. (2023). A method to rank global DEMs quality focused on their horizontal accuracy. Geomorphometry 2023, Iasi, Romania. Ariza-López, F.J.; Reinoso-Gordo, J.F. (2023). Functional Quality for GDEMs Assessment. Geomorphometry 2023, Iasi, Romania. Ariza-López, F.J.:Ureña-Cámara, M.A., Reinoso-Gordo, J.F.; Nero, M.A. (2023). Proposal for a Collaborative Data Infrastructure for Control of DEMs. Geomorphometry 2023, Iasi, Romania. 2022Rodríguez-Avi, J.; Ariza-López, F.J. (2022) Finite Mixture Models in the Evaluation of Positional Accuracy of Geospatial Data. Remote Sens. 2022, 14, 2062. https://doi.org/10.3390/rs14092062 Ariza-López F.J., Domingo Barrera, Salah Eddargani, María José Ibáñez, Juan F. Reinoso (2022). Spline quasi-interpolation in the Bernstein basis and its application to digital elevation models. Mathematical Methods in the Applied Sciences. https://onlinelibrary.wiley.com/doi/10.1002/mma.8602 Salah Eddargani, Domingo Barrera, María José Ibáñez, Juan Francisco Reinoso-Gordo, Francisco Javier Ariza-López (2022). C2 Spline Quasi-Interpolation To Downscale A Digital Elevation Model. En The Fourteenth International Conference on Advanced Geographic Information Systems, Applications, and Services. GEOProcessing, Porto, Portugal, June 26-30, 2022
Ariza-López F.J., Reinoso-Gordo FJ. (2022).Functional quality: A use-case oriented quality evaluation. En The Fourteenth International Conference on Advanced Geographic Information Systems, Applications, and Services. GEOProcessing, Porto, Portugal, June 26-30, 2022.
Ariza-López F.J., Reinoso-Gordo JF, García-Balboa JL. (2022). A DEM quality dashboard: A multivariate quality assessment panel. En The Fourteenth International Conference on Advanced Geographic Information Systems, Applications, and Services. GEOProcessing, Porto, Portugal, June 26-30, 2022.
Ariza-López F.J., J.F. Reinoso-Gordo, J.L. García-Balboa (2022). Calidad en modelos digitales de elevaciones: una aproximación funcional. XIX Congreso de Tecnologías de la Información Geográfica: Las TIG al servicio de los ODS. Zaragoza, septiembre 2022.
Ariza-López F.J., J. Rodríguez Avi, J.F. Reinoso Gordo, A.T. Mozas Calvache, J.J. Ruiz Lendínez, J.L. García Balboa (2022). Evaluación de MDE por medio de parches de control. XIX Congreso de Tecnologías de la Información Geográfica: Las TIG al servicio de los ODS. Zaragoza, septiembre 2022.
Reinoso Gordo J.F., Ariza López F.J. (2022). Estimación de la exactitud planimétrica de la red de drenaje derivada de un modelo digital de elevaciones (MDE). XIX Congreso de Tecnologías de la Información Geográfica: Las TIG al servicio de los ODS. Zaragoza, septiembre 2022.
Ariza-López, F.J; Reinoso-Gordo, J.F.; García-Balboa, J.L. (2022). Informe gráfico sobre la calidad de modelos digitales de elevaciones. En XII TOPCART 2022, Sevilla.
Ureña-Cámara, M.A.; Ariza-López, F.J.; Ruiz-Lendínez, J.J. (2022). Identificación de puntos homólogos en mallas de modelos digitales de elevaciones. En XII TOPCART 2022, Sevilla.
Ariza-López, F.J.; Nero, M.A.; Ureña-Cámara, M.A.; Reinoso-Gordo, J.F. (2022). Infraestructura colaborativa de datos de control de modelos digitales de elevaciones. En XII TOPCART 2022, Sevilla.
Reinoso Gordo JF, Ariza-López FJ, José Rodríguez Avi, Domingo Barrera Rosillo (2022). DEMs: A Multivariate Comparison Approach. En ICTDEM 2022: XVI. International Conference on Topography and Digital Elevation Modeling, Amsterdam, SEPTEMBER 15-16, 2022
Reinoso-Gordo JF, Ariza-López FJ, A. Mozas-Calvache, J. L. García-Balboa, S. Eddargani (2022). Terrestrial Laser Scans to Assess Aerial LiDAR Data. En ICTDEM 2022: XVI. International Conference on Topography and Digital Elevation Modeling, Amsterdam, SEPTEMBER 15-16, 2022 2021 Alba-Fernández, M.V.; Ariza-López, F.J.; Jiménez-Gamero, M.D. (2021). A New Approach to the Quality Control of Slope and Aspect Classes Derived from Digital Elevation Models. Remote Sensing. 2021, 13, 2069 https://doi.org/10.3390/rs13112069 Ariza-López FJ, Reinoso-Gordo JF (2021). Comparison of Gridded DEMs by Buffering. Remote Sensing, 13(15) https://doi.org/10.3390/rs13153002 Ariza-López FJ, Reinoso-Gordo JF (2021). Métodos de orlado para la evaluación de la exactitud altimétrica en modelos digitales de elevaciones del terreno. Revista Cartográfica IPGH. https://doi.org/10.35424/rcarto.i103.975 Rodríguez-Avi, J (2021). Aproximación al error en MDE por mixtura de distribuciones. Revista Cartográfica IPGH. https://doi.org/10.35424/rcarto.i103.968 Alba-Fernández MV (2021). Aplicación de los test de equivalencia al control tipo temático de magnitudes asociadas a un modelo digital de elevaciones. Revista Cartográfica del IPGH. https://doi.org/10.35424/rcarto.i103.993 Mozas-Calvache AT (2021) Positional quality assessment based on linear elements. Revista Cartográfica del IPGH. https://doi.org/10.35424/rcarto.i103.911 Rodríguez-Avi J, Ariza-López FJ (2021). Finite mixtures of normal distributions in the study of the error in altimetry. En 30th International Cartographic Conference 2021, Florencia (Aceptado) ICC 2021 Florencia Ariza-López FJ, Reinoso-Gordo JF, Rodríguez-Avi J (2021). DEM's elevation comparison by surface buffering. En 30th International Cartographic Conference 2021, Florencia (Aceptado). ICC 2021 Florencia Eddargani S, Ariza-López, FJ, Barrera D, Ibáñez MJ, Reinoso-Gordo JF, Romero-Zaliz R, Ureña-Cámara M (2021). Low computational cost construction of 2D approximating splines and its application to Digital Elevation Models. En 2021 International Conference on Computational and Mathematical Methods in Science and Engineering (CMMSE) and the First Conference on High Performance Computing (CHPC), Rota, del 22-27 de julio de 2021. ICC 2021 Florencia Barrera D, Ariza-López, FJ, Eddargani S, Ibáñez MJ, Reinoso-Gordo JF (2021) Spline-based approximation of digital elevation models. En XV Biannual Congress of the Società Italiana di Matematica Applicata ed Industriale, Parma 2021 (participación on line). Horizontal accuracy assessment of a novel algorithm for approximate a surface to a DEM. En 30th International Cartographic Conference, Florencia, 14-18 Dicembre. Aceptado. ICC 2021 Florencia Barrera, D., Ibáñez, M.J., Salah, E., Romero, R., Ariza-López, F.J., Reinoso-Gordo J.F. (2021). Horizontal accuracy assessment of a novel algorithm for approximate a surface to a DEM. En 30th International Cartographic Conference 2021, Florencia. Aceptado. ICC 2021 Florencia Alba-Fernández MV, (2021). Multivariate and spatialised similarity analysis of two Digital Elevation Models via a large number of multinomials in a two-sample problem paradigm. Congreso ERCIM 2021. Aceptado. ERCIM 2021 2020Mesa-Mingorance, J.L.; Ariza-López, F.J. (2020). Accuracy Assessment of Digital Elevation Models (DEMs): A Critical Review of Practices of the Past Three Decades. Remote Sensing. Remote Sens. 2020, 12(16), 2630; https://doi.org/10.3390/rs12162630 Alba-Fernandez MV, Ariza-Lopez FJ, Jimenez-Gamero MD. (2020) Thematic-accuracy quality control of slope and aspect classes based on an equivalence test. CMStatistics. CMStatistics 2020 Some previous publications: 2019López-Vázquez, C. and Hochsztain, E.(2019). Extended and updated tables for the Friedman rank test. Communications in Statistics - Theory and Methods, 48, 2, 268-281 https://doi.org/10.1080/03610926.2017.1408829 2018Ariza-López, FJ, EG Chicaiza Mora, JL Mesa Mingorance, J Cai, JF Reinoso Gordo (2018). DEMs: An Approach to Users and Uses from the Quality Perspective. International Journal of Spatial Data Infrastructures Research (EU-Joint Research Centre). 13: 131-171. http://ijsdir.jrc.ec.europa.eu/index.php/ijsdir/article/view/469/430 Mesa-Mingorance JL, Ariza-López, FJ (2018). MDE: Referencias sobe evaluación de la calidad (1990-2017). GIIC Universidad de Jaén 2017Mesa Mingorance JL, EG Chicaiza Mora, X Buenaño, J Cai, AF Rodríguez Pascual, Ariza-López, FJ (2017). Analysis of Users and Uses of DEMs in Spain. ISPRS I.J. Geo Information (MDPI). 6(12) 406. doi.org/10.3390/ijgi6120406 Mozas Calvache, AT, Ureña Cámara, MA, Ariza-López, FJ (2017). Determination of 3D Displacements of Drainage Networks Extracted from Digital Elevation Models (DEMs) Using Linear-Based Methods. ISPRS I.J. Geo Information (MDPI). 6(8), 234. doi.org/10.3390/ijgi6080234 Padilla-Ruiz, M. y López-Vázquez, C. (2017). Measuring conflation success, Revista Cartográfica 94, 41-64 2016Mesa Mingorance JL, Chicaiza EG, Buenaño X, Jianhong C, Rodríguez-Pascual AF, Ariza-López FJ (2016). Análisis de los usuarios y usos de los MDE en España. Geofocus, nº 17. http://geofocus.org/index.php/geofocus/article/view/466/365 López-Vázquez, C. (2016). A protocol for the ranking of interpolation algorithms based on confidence levels, International Journal of Remote Sensing 37, 19, 4683-4697 https://doi.org/10.1080/01431161.2016.1219461 Before 2010López-Vázquez, C. y Manso Callejo, M. A. (2012). Point and Curve-Based Geometric Conflation, International Journal of Geographic Information Science, 27, 1, 192-207 https://doi.org/10.1080/13658816.2012.677537 Ariza-López, FJ; Ureña Cámara, M.A.; García Balboa (2010). Terra-Aster GDEM una posibilidad global para los catastros altimétricos. En 1er Congr. Int. sobre Catastro Unificado Multipropósito. Jaén, 2010. ISBN:978-84-8439-519-5 Cuartero, A, Felicisimo AM, Ariza-López, FJ (2005). Accuracy, reliability, and depuration of SPOT HRV and Terra ASTER digital elevation models IEEE Transactions on Geoscience and Remote Sensing 43 (2), 404-407 DOI: 10.1109/TGRS.2004.841356 Cuartero, A; Felicísimo, AM; Ariza-López, FJ (2004). Accuracy of DEM generation from Terra-ASTER stereo data. Proceedings XXth Congress ISPRS 2004. Estambúl. Comission VI, WG VI/4. Vol. XXXV, part B5. | |||||||||||||
StaffAccording to the call and the conditions of participation two teams are distinguished:
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Observer and promoter entitiesEntities promoting and participating in this project are the following:
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Photos
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LinksSome links of interest related to this topic are the following: EU-DEM digital surface model (DSM) World digital elevation model (ETOPO5) ASTER Global Digital Elevation Model (GDEM) Version 3 (ASTGTM) USA, 3D Elevation Program Standards and Specifications Digital Elevation Model - DEM Users Manual
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AcknowledgementsThis project is a collective work of a group of researchers that could not be carried out without the financial help of the Ministry of Economy and Competitiveness and the FEDER Funds and without many other supports that we also want to recognize from here:
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ContactIf you want to contact us:Francisco Javier Ariza López | |||||||||||||
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