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Slide 1 of 5 Publicación Acceso Abierto
Assessment of open-source and proprietary generated digital elevation models and building footprints for urban flood modelling in Cartagena De Indias, Colombia
(Geocarto International, 2026-05-31) Masud, Ambreen; Valasia Peppa , Maria; Solano Correa, Yady Tatiana; Philip Mills, Jon; Button, Cat; Grupo de Investigación Física Aplicada y Procesamiento de Imágenes y Señales- FAPIS; Semillero de Investigación en Visión Artificial
Urban hydrological models are critical for flood risk management. However, the availability of high-resolution topographic data for reliable outputs remains challenging in data-scarce cities. Therefore, determining data quality in producing reliable information is fundamental. We evaluated open-source and proprietary topographic data for use in the two-dimensional hydrological model City Catchment Analysis Tool (CityCAT). We modelled 12 scenarios using combinations of open-source and light detection and ranging (LiDAR)-generated datasets, validating the results with community-generated flood risk maps. The findings show high agreement with scenarios using LiDAR-derived digital elevation models (DEMs) (bootstrapped Spearman’s ρ ≈ 0.90). However, open-source building footprints performed better, demonstrating that both are necessary for reliable urban flood risk mapping. As LiDAR is costly with limited access, we urge for publicly available high-resolution datasets for low- and middle-income countries (LMICs) disproportionately impacted by climate change. Therefore, we address this gap by focusing on a Latin American context with Cartagena de Indias (Colombia) as a case study.
Slide 2 of 5 Publicación Acceso Abierto
Deception Island (Antarctica) as an analog environment for human space missions: A comparative analysis of Gabriel de Castilla base (Spain) and Decepcio´ n base (Argentine)
(Acta Astronautica, 2026-06-03) Leal Leal, María Angélica; Tovar, David; de Pablo, Miguel Ángel; Bonilla, M.A.; Sanchez, J.; Goyanes Díaz, Gabriel Alejandro; Molina, Antonio; Leal Leal, Marisol; Manjarrés, I.; Ríos, I.; María Camila Orozco; Orozco, María Camila; Tocarruncho, M.; Vergara, C.; Leone, G.; Rizzo, C.; San Martin Lobos, Jose Tomas; Abrevaya, X.C.; Cristina Luna; Luna, Cristina; Acevedo Barrios, Rosa Leonor; Tchegliakova, N.; Rosa Leonor Acevedo Barrios; Grupo de Investigación Estudios Químicos y Biológicos; Semillero de Investigación en Ciencias Ambientales
Terrestrial analog environments play a critical role in preparing for future human missions to the Moon and
Mars, as they facilitate the validation of technologies, operational protocols, and human performance under
extreme conditions. Deception Island (Antarctica), an active volcanic system that hosts two seasonal research
stations: 1) Spanish Antarctic Station Gabriel de Castilla (BAEGdC) and 2) Argentinian Antarctic Base Decepcio´ n
(BAAD), has long been recognized for its geological similarities to Mars. However, its potential as a comprehensive
analog for human exploration has not yet to be systematically evaluated. This study presents a multidimensional assessment of Deception Island as a natural analog site, together with a comparative evaluation of BAEGdC and BAAD as analog stations. Ten parameters were analyzed, including geology and geomorphology, environmental conditions, infrastructure and habitability, life support and telemedicine, risk management, planetary protection and biosecurity, human factors, logistical sustainability, and
the potential for scientific experimentation and technological validation. The methodology integrates a literature
review, infrastructure and operational analysis, and perception surveys conducted during the 2022–2023 austral
summer campaign. The results indicate that, within the evaluation framework applied in this study, Deception Island achieves the maximum site-level score, highlighting its strong potential as a natural analog environment. Nevertheless, these
scores should be interpreted within the scope and methodological limitations of the proposed framework. At thestation level, BAEGdC met or exceeded the defined threshold across all evaluated parameters, whereas BAAD exhibited comparatively lower analog fidelity, mainly due to limitations related to human habitability, life support systems, and space-oriented technological validation. These findings suggest that Deception Island, particularly BAEGdC, represents a promising platform for analog missions aimed at supportingpreparation for future human exploration beyond Earth.
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