Ingeniería Catastral y Geodesia
URI permanente para esta colecciónhttp://hdl.handle.net/11349/2018
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Ítem Metodología para la determinación de zonas de vulnerabilidad en el volcán Nevado del Ruiz basados en análisis multicriterio y lógica difusa(Universidad Distrital Francisco José de Caldas) Hernández Vargas, Rodrigo Alexander; Upegui Cardona, Erika Sofía; Valbuena Gaona, Martha Patricia; Upegui Cardona, Erika Sofía [0000-0003-0973-7140]; Valbuena Gaona, Martha Patricia [0000-0002-4366-0952]The Nevado del Ruiz Volcano (VNR), located in the central mountain range of the Colombian Andes, represents a threat due to its historical and recent activity. The 1985 eruption, which caused the Armero tragedy, underlines the importance of developing robust methodologies to assess and manage volcanic risk. This project is based on proposing a new methodology to generate cartography for vulnerability studies in a given area, in this case using the VNR as a source of threat. It is desired to implement as a research base raster files in TIFF format so that, by representing each of the influential factors in the study phenomenon (slopes, hydrology, land cover, atmosphere), these factors can be processed by multicriteria analysis algorithms and fuzzy logic and thus generate graphical outputs with vulnerability zones and thus compare the obtained results with the expected ones. The methodology includes data collection activities, information processing and analysis, fuzzy normalization and application of Multicriteria Analysis (MCA) to integrate multiple evaluation factors. Topographic, climatic and land cover data were obtained from satellite platforms (Sentinel 1, Sentinel 2, Landsat and MERRA 2). In addition, GNSS data measurements were incorporated in the study area by means of a Leica receiver to corroborate the data obtained from the MDT digital elevation model by means of radar interferometry. The software used to generate this methodological proposal were Quantum Gis and ArcGIS Pro as bases for the development of the Geographic Information System (GIS) and the analysis of the information obtained, SNAP for the management of the interferograms and the development of the MDT model and finally Leica Infinity to obtain the position and height data collected in the field. The final result will be represented by a map generated based on the raster data representative of each influence factor, processed by the algorithms of Multicriteria Analysis (MCA) and Fuzzy Logic which will identify the different areas of vulnerability present in the area of interest, centrally located in the Arenas crater, with portions of the departments of Caldas, Risaralda, Tolima and Quindío.Ítem Análisis y apoyo del proceso de saneamiento catastral de predios rurales en los municipios de Puerto López, Acacias y Restrepo del departamento del Meta administrados por la Sociedad de Activos Especiales S.A.S para la entrega y venta a la Agencia Nacional de Tierras en el marco de la reforma agraria(Universidad Distrital Francisco José de Caldas) Peña Florián, David Santiago; Valenzuela Molina, Floe Geraldinne; Rodríguez Mustafá, July Marcela; Correa, Diego EdinsonThe report documents the internship carried out by David Santiago Peña Florián and Floe Geraldinne Valenzuela Molina, focused on the analysis and support to the process of cadastral reorganization of rural properties in the municipalities of Acacías, Restrepo and Puerto López, in the department of Meta, Colombia. This work was carried out at Sociedad de Activos Especiales (SAE S.A.S.) and its main objective was to guarantee the consistency of the cadastral and registry information to facilitate the transfer of 56 properties to the National Land Agency (ANT), within the framework of the agrarian reform. The project included the diagnosis of inconsistencies in areas, boundaries and ownership records; the development of technical concepts for reorganization; and the formulation of proposals to improve cadastral management. Among the proposals are the implementation of a digital library of public deeds and the automation of processes through artificial intelligence. This work contributes to the national land redistribution policy, promoting sustainable and equitable rural development.Ítem Análisis integral de los predios fiscales de uso institucional en Sibaté, Cundinamarca: diagnóstico físico, jurídico y económico(Universidad Distrital Francisco José de Caldas) Esteban Arenas, Michael Jesid; Peña Vargas, Pabel Steven; Fuentes López, Héctor Javier; Fuentes López, Héctor Javier [0000-0001-6899-4564]The present work was proposed when knowing the misuse and the great outdatedness of the fiscal properties in the municipality of Sibaté, Cundinamarca, it was carried out to analyze said properties, carrying out a comprehensive diagnosis that considered the physical, legal and economic aspects; covering a detailed inventory with current information on said properties. Verifications of current information, cadastral consultations were carried out in portals such as IGAC, because this information is not always available in open data; It is always suggested to review these portals in order to verify the similarity or agreement with the official website of the mayor's office. Also counting on physical inspections taking a tour of each of the assets under study; thus allowing a comprehensive diagnosis to be carried out, guiding it in accordance with the current regulations of the Municipality of Sibaté. As a result of the work, an updated inventory was obtained of the physical component of fiscal assets for institutional use, the economic component carrying out a methodology that allows finding their commercial value and the legal component knowing all the current regulations through Agreement 011 of 2002. Along with this, some recommendations are also attached to take into account to carry out said recognition processes and implementation of information by the mayor's office in order to achieve an updated cadastre.Ítem Evaluación de redes neuronales convolucionales para la extracción de linderos prediales como herramienta para la actualización catastral(Universidad Distrital Francisco José de Caldas) Villamil Garro, Kelly Jhoana; Quijano Malagón, Karen Lizeth; Coronado Sánchez, Paulo César; Villamil Garro, Kelly Jhoana [0009-0002-4481-6207]; Quijano Malagón, Karen Lizeth [0009-0001-0998-5788]; Coronado Sánchez, Paulo César [0000-0003-2980-2376]The training and validation process of machine learning models follows an iterative cycle composed of three main activities: input enlistment, model optimization, and results analysis. Enlistment includes data selection and preparation, while optimization focuses on the choice of architecture and the adjustment of model parameters, and finally, results analysis involves the calculation of metrics for model evaluation, where in the case of a non-optimal evaluation, an iterative optimization process must be performed to reach performance thresholds. In the study, the use of pre-trained models is proposed for the extraction of visible physical property boundaries in rural soil in Cundinamarca, for which 2 orthoimages corresponding to the municipalities of Tabio and Subachoque were chosen as inputs, which have a Ground Sample Distance less than 50 centimeters. In the case of Tabio, the roads, drains, walls and fences present in the official basic cartography of the municipality were used as elements of the boundary class, and for Subachoque, these elements were manually digitized. 145 tests were performed between the SegNet, Unet and ResNet models with tile datasets of 3 different sizes; 256x256, 512x512 and 2557x1887. Likewise, the window size, stride, batch size and number of epochs parameters were varied, in search of the optimal combination in terms of execution time and training and validation metrics. The values obtained for the evaluation metrics show that the UNET architecture achieves the best performance, as it stood out in the F1-Score and Kappa index values for both municipalities. However, as in any automated task, it is necessary to consider practical factors such as minimum machine requirements and execution time versus these parameters for the conventional capture of boundaries. Finally, the importance of the quality of the data set to guarantee the accuracy of the results is evident, therefore, improvement is suggested both in the selection and in the debugging of the input vector and raster data.Ítem Gestión de un proceso participativo para la formalización de la tenencia de la tierra junto a la Asociación Campesina Inzá Tierradentro (ACIT) en territorios campesinos: análisis de la informalidad y propuesta de soluciones en Inzá, Cauca(Universidad Distrital Francisco José de Caldas) Lagos Guacaneme, Daniel Felipe; Zárate Mendoza, Josher Daniel; Ramírez Ramos, Carlos GermánThis document focuses on addressing the issue of land tenure informality in the peasant area of the municipality of Inzá in the department of Cauca, Colombia, in collaboration with members and leaders of the Inzá Tierradentro Peasant Association (ACIT). It also proposes a strategy for constructing a procedure to identify these informalities and present them to national entities that can provide solutions to this problem. The research highlights the issues of excessive land fragmentation and lack of legal titles, which limit the community’s access to resources. Through a participatory and collaborative approach, the goal is to achieve a fairer distribution of land, provide tenure security, and support the rural population in sustainable land use and economic development.Ítem La toponimia en la base nacional de nombres geográficos: Un análisis comparativo a partir de fuentes especializadas y no especializadasCruz Olaya, Laura Stefanny; Castro Ortega, Carlos Hernán; Castro Ortega; Carlos Hernán [0000-0002-5039-3848]The place names of territorial entities serve as windows to the past, since they reflect the history, culture and geography of the communities that originated them. Its study provides a broader perspective of the dynamics and changes in the territory. For this reason, it is important to analyze the Toponyms present in the IGAC National Base of Geographic Names, determining their degree of updating and correspondence with other specialized and non-specialized official sources of information. This is through a descriptive level investigation with a qualitative approach for the comparison of databases and information regarding the 1121 municipality place names present in the IGAC database, with different specialized and non-specialized official sources. This allowed us to determine that only 1.25% of the Base is outdated, and that only 14 of the municipalities analyzed presented any difference between the compared information. In conclusion, the differences presented largely resulted as a consequence of the colonization processes. Finally, recommendations are proposed for the management and updating of place names, taking into account factors such as community participation, the interrelation of information, geographical changes in the territory and access to information.Ítem Apoyo en el análisis de restricciones ambientales para proyectos eólicos en el municipio de San Juan del Cesar – La Guajira(Universidad Distrital Francisco José de Caldas) Ramos Español, Nicolás; Ramírez Ramos, Carlos Germán; Ramírez Salas, WilliamThis internship project aims to support the development of an Environmental Constraints Analysis (ARA) for a wind farm project in the municipality of San Juan del Cesar, La Guajira, in collaboration with WSP Colombia S.A.S. Geographic Information Systems (GIS) and the environmental licensing scheme instruments from the National Environmental Licensing Authority (ANLA) were utilized for this analysis. Four specific objectives were established: preparing geographic and alphanumeric information on the Socio-Environmental and Cultural Components (CSC), characterizing the Area of Interest (AOI), conducting an analysis based on environmental sensitivity, and creating a synthesis map of environmental constraints. The results of this process include the creation of a consolidated geographic database that enhances access to and usability of critical information, along with the identification of ecologically sensitive areas within the AOI. These findings provide a better understanding of the constraints that could impact the feasibility of the wind energy project, helping to foresee and mitigate potential negative impacts. The analysis also produced a synthesis map of environmental constraints, offering a key visual tool for informed decision-making. This internship not only contributes to the development of the wind farm project in San Juan del Cesar but also establishes a methodological framework that can be replicated in future projects in the region. The recommendations derived from this analysis aim to ensure that energy infrastructure development aligns with the conservation of the natural and social environment, promoting a balance between economic growth and environmental sustainability.Ítem Desarrollo de un Índice para evaluar la resiliencia de construcciones residenciales al calentamiento global mediante información catastral(Universidad Distrital Francisco José de Caldas) Miranda Nieto, Natalia; León Ruiz, Javier Damián; Suárez Torres, Edilberto; Miranda Nieto, Natalia [0009-0007-4114-0404]; Suárez Torres, Edilberto [0000-0002-7582-1108]During the discussion of the current global climate situation, an index was developed to evaluate the resilience of residential buildings in Colombia in the face of global warming, using open data cadastral information from the Agustin Codazzi Geographic Institute (IGAC) and information from the Third National Communication on Climate Change in Colombia. The index seeks to identify the least resilient houses to high temperatures and generate information to guide decisions to improve their capacity to adapt, resist and recover from the effects of global warming. The model generated for the construction of the index integrates three components: threat, based on projections of future extreme temperatures and using a range of indoor thermal comfort; sensitivity, built from cadastral information such as building typology and built area for the national index, adding to this characteristics of the environment, such as the percentage of trees, orientation, road material, altitude and access to public services for the case study; and adaptive capacity, associated with municipal climate management strategies, an input provided in the TCNCC that brings together in the six types of actions for adaptation. Implemented in ArcGIS Pro, the index categorizes and normalizes the variables in a continuous range from 0 to 1, and the result that is also categorized and is given in a continuous range between -1 and 1 indicates the resilience at the building level. To facilitate its visualization, averages weretaken to show the spatial distribution of resilience in the national territory, so that a case study could be selected for further analysis. The degree work concludes by highlighting both the relevance of the innovative index proposal generated and the multipurpose use of cadastral information, thus emphasizing the need to promote cadastral processes so that this information can be a basis for decision making and the generation of public policies in accordance with the territorial reality.Ítem Estructuración y actualización de las tipologías constructivas para avalúos comerciales en el área rural de los llanos orientales en la compañía LONJACUNCubillos Barbosa, Yarith Juanita; Mendoza Cañón, Laura Vanessa; Torres Colmenares, Oscar Fernando; Forero Torres, Jorge EduardoIn the Eastern Plains region, the rural property market has experienced remarkable growth. This development poses the challenge of having an updated classification of construction typologies to make accurate valuations. This effort is aligned with the agrarian reform of Decree 1406 of 2023, which seeks to redistribute land to peasant families without access to it. The National Land Agency and the Special Assets Society are collaborating in the transfer of land, some previously linked to illegal activities, for its reintegration into the community. In this context, LONJACUN, in collaboration with other real estate exchanges, plays a key role in updating rural construction typologies, essential for the appraisals of the properties to be redistributed. The project to structure and update construction typologies for rural commercial appraisals in the Eastern Plains seeks to design a database with a detailed analysis of unit prices for typical constructions in the region. A technical booklet and visual tools are also being developed to facilitate the work of appraisers. In addition, a Dashboard is being created that will allow the spatial distribution of housing typologies to be visualised, relating them to their location in relation to population centres, thus contributing to a comprehensive approach to the construction development of the region.Ítem Proceso de adjudicación de tierras en la época colonial y republicana para contribuir al saneamiento de la propiedad privada en el departamento de Boyacá(Universidad Distrital Francisco José de Caldas) Rodríguez Cupitra, Joseph Steven; González Palma, Jacobo; Fuentes López , Héctor Javier; Fuentes López, Héctor Javier [0000-0001-6899-4564]This report is framed within the process of granting Historical Titles in the Department of Boyacá, led by Dirección de Gestión Jurídica de Tierras of Agencia Nacional de Tierras. The main objective was to characterize land allocation processes during the colonial and republican eras, using as primary sources documents extracted and transcribed from the National Archives, corresponding to the indigenous reservations of Chiquinquirá, Ráquira, Tobasía, Sotaquirá, Tinjacá, and Tópaga, complemented by relevant bibliography on the colonial period. The analysis identified ten processes related to land management that explain the territorial and social dynamics of the time, uncovering a conflict of interests among the Corona Española, encomenderos, colonial officials, mestizos, and indigenous communities. These findings highlight the importance of land formalization in Colombia as a critical step toward the regularization of property. In conclusion, the allocation of Historical Titles is essential for the formalization of rural properties in Boyacá, contributing to the fulfillment of the objectives established in the Reforma Rural Integral.Ítem Evaluación de precisión vertical de modelo digital de elevación generado mediante radargrametría usando imágenes CAPELLA SAR SPOTLIGHT en el municipio de Cáqueza – Cundinamarca(Universidad Distrital Francisco José de Caldas) Díaz Cristancho, Edward Nicolás; Herrera Escorcia, José Luis; Díaz Cristancho, Edward Nicolás [0000-0002-9169-6263]This study focuses on the assessment of vertical accuracy of a Digital Elevation Model (DEM) generated through radargrammetry using Synthetic Aperture Radar (SAR) Capella satellite constellation in the municipality of Cáqueza, Cundinamarca. The methodology employed includes comparing the DEM with Ground Control Points (GCPs) collected using a high-precision GNSS receiver. The results were analyzed in accordance with the technical standards of the Instituto Geográfico Agustín Codazzi (IGAC), following Resolution 471 of 2020. The analysis showed that the generated DEM presents adequate accuracy for applications in cartography and land management, contributing to the validation of radargrammetry as a viable technique for generating high-resolution models in hard-to-access areas.Ítem Herramientas de visualización 3d para la plataforma Colouring Bogotá: Caso de estudio Prado Veraniego SurPirachicán Naranjo, Angie Juliana; Lara Sotelo, Brayan Camilo; Coronado Sánchez, Paulo CésarThe research group OSGeoLAB UD, which belongs to the research group in Public Management, Appraisal and Urban Planning (GIGA), is responsible for the Colouring Bogotá platform, an application derived from the Colouring Cities project led by The Alan Turing Institute in the United Kingdom. Colouring Bogotá is an urban space representation project where two-dimensional visualization of spatial data, while useful, generates limited representations of urban components (Bilecki et al., 2021), this limitation is common in the field of data visualization platforms such as IDECA, therefore, we seek to answer How can open source 3D representation standards and tools improve data quality and visualization in 'Colouring Bogotá'? using a hybrid methodology of technical and theoretical components to integrate a 3D representation and visualization system in the platform, it is achieved; understanding through matrices, processes and documentation the potential of standards for 3D representation, defining the process to integrate the platform with 3D representation tools and integrating data and open tools for 3D visualization on the web. In general, it is recommended and concludes the opportunity to continue developing research on 3D representation, if possible implementing open source tools and standards that allow access and interoperability of data.Ítem Caracterización y análisis del proceso de conservación catastral por mutaciones que incidan en la información del componente económico, realizado en la UAECD – 2023(Universidad Distrital Francisco José de Caldas) Pérez Hernández, Víctor Manuel; Rodríguez Mustafa, July MarcelaThe purpose of this paper is to examine the process of cadastral conservation in the city of Bogota, with a particular focus on cadastral mutations and their impact on economic information. Through an internship in an entity of great national prestige, it documents and analyzes in detail the processes, methodologies and operational flows that support this public service, as well as the implications of these procedures in the management of cadastral data. A qualitative approach and the hypothetico-deductive method are used at a correlational level, with a non-experimental cross-sectional design, to identify and analyze the relationships between the most significant variables of the process. In addition, this descriptive analysis based on the experimental data obtained during the internship was carried out in order to understand the trends, behaviors and nature of the cadastral conservation process. The results of this study allow establishing key relationships that, in the future, will be a tool for the development of methodologies and work plans aimed at optimizing the process, with the objective of improving its efficiency and strengthening its capacity to manage economic information effectively in the city.Ítem Modelo de estratificación socioeconómica basado en inteligencia artificial en la localidad de Chapinero, Bogotá D.C.(Universidad Distrital Francisco José de Caldas) Díaz Amaya, Laura Estefanía; Pérez Carvajal, Edwin RobertIn this work, the accuracy of an artificial intelligence algorithm will be determined and tested through machine learning, such as the Socioeconomic Stratification Model based on Artificial Intelligence for the calculation of the socioeconomic strata of Chapinero locality, through the use of neural networks and/or decision trees. For the work, an alphanumeric database was taken into account along with the facade images of the properties, this for the calculation of the socioeconomic stratification of blocks located in Chapinero locality, in order to minimize the time and money resources of the current methodology and implement the use of new technologies in the territory. As a first step, images of facades of properties were extracted, which thanks to the extension of the Street View of the company Google offers for free, which together with variables of each of the houses or blocks of the properties under study related to the alphanumeric database that belongs to the Special Administrative Unit of the District Cadastre. From the WEKA software, the data was processed, where depending on the case of the variable it was converted into nominal or continuous, for the case of the image with .jpg format a different treatment was carried out, subsequently neural networks and decision trees were tested to verify which of these executed algorithms is the best qualifier of socioeconomic stratification for the Chapinero locality. Among the most optimal classification algorithms is the J48, which will be the Artificial Intelligence Socioeconomic Stratification Model (MESIA) algorithm, since this model manages to define the stratification with more than 90% accuracy, and takes into account very marked limits between strata such as strata 1 and 2 located towards the eastern hills in the Chapinero locality of Bogotá. But what would happen if the Socioeconomic Stratification Model based on Artificial Intelligence is applied in other localities of Bogotá? Or what other variables could be added to the Artificial Intelligence-based Socioeconomic Stratification Model?Ítem Desarrollo de un geovisor para el análisis de información hidro-climática bajo escenarios de cambio climático en el departamento de Bolívar(Universidad Distrital Francisco José de Caldas) Rubiano, Máni; Rojas Rincón, Claudia BereniceThe objective of this project is the design, development and implementation of a hydroclimatic data geoviewer for the department of Bolivar, a tool based on geographic information systems (GIS) that integrates and visualizes geospatial information related to water resources and the effects of climate change in the region. This geoviewer provides an interactive platform that allows users to access updated data, perform queries, visualize thematic maps, and download datasets in a simple and efficient manner. The geoviewer has been developed based on ESRI technologies, using ArcGIS Online and Web AppBuilder for its implementation. The system's functionalities allow the visualization of relevant hydroclimatic information, including variables such as precipitation, temperatures and water resources, in addition to facilitating the consultation and analysis of data in an accessible and intuitive environment. The system has also been designed with a scalable architecture, allowing for future expansion and integration of new functionalities and tools for a more detailed analysis of the effects of climate change. The project responds to the growing need for technological tools to support water resources management, especially in the context of climate variability, and to contribute to informed decision making by government institutions, local organizations and other key stakeholders. In addition, the platform has been conceived to be accessible to the public, promoting transparency and access to reliable information.Ítem Análisis espacial y temporal de los trámites catastrales de alto impacto pre y post pandemia (2019 - 2023) en Bogotá utilizando SIGPinzón Quevedo , Erika Vanesa; Santos Vesga, Juan Sebastián; Rojas Rincón , Claudia BereniceThe degree work "Spatial and Temporal Analysis of High Impact Cadastral Procedures of Pre and Post Pandemic (2019 - 2023) in Bogotá using GIS" examines the evolution of cadastral procedures in the city before, during and after the COVID-19 pandemic, using Geographic Information Systems (GIS) to identify spatial and temporal patterns. The research focuses on high-impact procedures, such as deglobes, englobes, assessment reviews and capacity and boundaries certifications, analyzing their distribution and frequency in the different locations of Bogotá. The findings show a drastic reduction in procedures in 2020 due to health restrictions, followed by a gradual recovery between 2021 and 2023, driven by digitization and economic reactivation. It is observed that the localities with the highest population density, such as Suba and Ciudad Bolívar, concentrate the largest number of procedures, while rural areas such as Sumapaz register the lowest activity. The study concludes that the pandemic accelerated the digitization of cadastral processes, highlighting the need to strengthen modernization strategies and urban legalization policies to improve the efficiency of the cadastral system. The research provides key information for the Sub-Management of Citizen Participation and Attention (SPAC) of the UAECD, facilitating decision-making based on spatial data and contributing to a more efficient and adaptive cadastral management.Ítem Producción de base de datos vectorial de cartografía básica del municipio de la Ceja-Antioquia en el marco del catastro multipropósito(Universidad Distrital Francisco José de Caldas) Galeano Rios, Carol Yizeth; Ramírez Ramos, Carlos GermánIn Colombia, the national cadastre with a multipurpose approach was designated as a public service from law 1753 of 2015, in accordance with this from CONPES 3958 of 2019 proposes the implementation of the public policy of multipurpose cadastre with the objective of having a comprehensive, complete, updated and interoperable cadastre since by 2019 only 5.68% of the national territory had updated cadastral information. According to the pilot plans carried out, the deficiency of necessary inputs for field work was evidenced and although there is a complete cartographic coverage of the country, it does not meet the technical requirements of scale and resolution as inputs for the cadastre, where the basic cartography plays an essential role in the physical cadastral information, therefore, in the scope of the achievements proposed at the national level. Considering the cartographic context and its importance, the development of this internship focuses on the elaboration of a 1:2000 scale vector database for the municipality of La Ceja Antioquia, developing diverse processes that guarantee quality in aspects of completeness, logical consistency, positional accuracy and thematic accuracy established by the Agustin Codazzi Geographic Agustín Codazzi Geographic Institute, and thus generate a cartographic input suitable not only for the cadastral update, but also for the cadastral updating, but also for territorial management, planning and governance. Translated with DeepL.com (free version)Ítem Herramientas para la caracterización de títulos históricos de propiedad privada, un insumo fundamental para el desarrollo de la reforma agraria, en el departamento de Boyacá.Santamaria Morales, Joseft Stif; Fuentes López, Héctor Javier; Fuentes López, Héctor Javier [0000-0001-6899-4564]This document addresses the characterization of historical private property titles in Boyacá as a key input for the implementation of the Agrarian Reform in Colombia, through paleographic interpretation, the analysis of historical references and the multitemporal cartographic review, delimit and georeferences areas of interest, optimizing processes for formalization of ownership, in turn including the integration of advanced technological tools, as geographic information systems (GIS) and artificial neural networks, to automate the identification of historical terms and their correlation with current locationsm this methodology not only strengthens legal certainty, but also facilitates spatial planning and promotes sustainable development in rural areas. In addition, the institutional benefits are highlighted, such as the consolidation of geographical databases and the creation of technical products, including maps and precise coordinates, which enrich the tools of the National Land Agency, Ultimately, the project contributes to national land redistribution targets and improves conditions in rural communities by resolving agrarian conflicts and ensuring proper development and implementation of comprehensive rural reform.Ítem Caracterización laboral, profesional y académica de los egresados de Ingeniería Catastral y Geodesia para facilitar la labor de la Asociación Colombiana de Ingenieros Catastrales y Geodestas (ACIG).Díaz Garzón, María Paula; Trujillo Sánchez, Tatiana Carolina; Ramírez Ramos, Carlos GermánThe internship which was carried out as a degree modality was developed with the Colombian Association of Cadastral and Geodesic Engineers (ACICG), whose main objective was to develop a database integrated into a geographic information system to characterize graduates of Cadastral Engineering and Geodesy. This tool seeks to optimize consultation and decisionmaking through the georeferencing of graduates, thus offering a valuable resource for the Association. For data collection, a form designed in Survey 123 was used, which allowed the implementation of the data structure in a Web Geographic Information System through the ArcGIS Web AppBuilder tool, which facilitates the interactive and dynamic consultation of the information collected from the surveys. For the development of the application and the database, we had the advice and support of ESRI, which provided us with its knowledge and software licensing, given that this entity has a current agreement with the ACICG.Ítem Generación de un mapa dinámico de zonas propensas a blanqueamiento en el arrecife de Varadero’s Hope Spot, Cartagena de Indias, Colombia, aplicando algoritmos de machine learning en imágenes de PlanetScope y datos de temperatura de la superficie del mar de NOAA en el periodo 2023-2024.Peña González, Viviana Andrea; Almanza Padilla, José Gabriel; Medina Daza, Rubén Javier; Medina Daza, Rubén Javier [0000-0002-9851-9761]The project focuses on creating a dynamic map of bleaching-prone areas in Varadero's Hope Spot Reef, located in the Bay of Cartagena, Colombia, during the 2023-2024 period. Advanced remote sensing techniques and machine learning algorithms (Random Forest, ANN, and U-Net) were applied to PlanetScope satellite images and NOAA sea temperature data to identify and classify high-risk areas. The U-Net model demonstrated the best performance in segmentation, achieving an overall accuracy of 93.5% and a Kappa index of 0.90. Field validations were conducted through reef dives to confirm the results. The final map serves as a key tool for environmental management and supports the development of conservation strategies aimed at protecting this unique and resilient ecosystem.