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Item type:Publication, Towards adopting open and data‐driven science practices in bed form dynamics research, and some steps to this end(Wiley, 2020-01-15)Abstract In recent years, open and data‐driven science has fostered very important scientific breakthroughs. This study describes the challenges and opportunities for the scientific community devoted to bed form dynamics research in adopting such scientific paradigms through, for example, engineered data sharing, formal recognition of scientists who collect the data, and collaborative development of free accessible software. It highlights that once these actions are completed, the potential application of deep learning techniques could substantially improve bed form models and the scientific understanding of bed form dynamics. Likewise, it discusses the potential of Bedforms‐ATM, a free available software, to standardize some bed form data analysis techniques. We propose that the technical challenges be tackled by following scholarly accepted/proposed standards (e.g. FAIR Guiding Principles, Geoscience Papers of the Future), using the body of knowledge being built on the matter by some institutions (e.g. Federation of Earth Science Information Partners), and through technical discussions at scientific meetings such as MARID. © 2020 John Wiley & Sons, Ltd. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Development and validation of a novel metric for describing the three-dimensionality of bed forms(Elsevier, 2021-10-01)Description and characterization of bed forms in different environmental settings requires an assessment of three-dimensionality. This is related to the irregularity of the bed form shape and the degree of dissimilarity from strictly 2D bed forms, those bed forms that are straight, continuous, lack of defects and are arranged in groups with an aligned pattern. Three-dimensionality assessments are commonly vague and subjective, and even when some numeric relations for three-dimensionality quantification exist, they are based mainly on the characteristics of the bed form crest and cannot be easily implemented or automated to be applied to bed form fields. In this work an objective and general method is presented for the assessment of bed form three-dimensionality. The method introduces a three-dimensionality index Tb, which considers the correlation between bed profiles orthogonal to a target direction and a reference mean longitudinal bed profile. It is shown that the suggested method can serve as an objective characterization tool for ranking the three-dimensionality of groups of bed forms at different scales, with a continuous scale between 0 and 1. For archetypical bed forms, which were synthetically generated from sinusoidal functions, Tb successfully reproduced the intuitive hierarchy of the degree of three-dimensionality. Moreover, when applied to real subaqueous dunes in one-directional decelerating flows, Tb was able to reveal a gradual decrease of the bed configuration three-dimensionality with flow strength increase. The method also proved to be useful to automatically infer the orientation angle of bed forms by finding the angle of minimum three-dimensionality. This is exemplified with superimposed ripples on a Martian barchan-dune, using the grey scale of a high-resolution image instead of bed elevations. The new approach may be also useful to validate morphodynamic models, and to develop three-dimensionality maps for identifying heterogeneous regions or zones with a bad quality of survey data. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, El compromiso ambiental y social, los nuevos retos y las perspectivas de los ingenieros de ríos en Latinoamérica(National Autonomous University of Mexico, 2022-08-03)La ingeniería de ríos ha proporcionado los elementos teóricos, empíricos y prácticos para intervenir en los cursos fluviales con la finalidad de aprovechar los recursos hídricos o de reducir los riesgos de daño a poblaciones e infraestructuras. Tradicionalmente, el ingeniero hidráulico con especialidad en ingeniería de ríos ha emprendido estas acciones mediante soluciones que se pueden denominar como “rígidas” o “duras”, por los materiales y las técnicas constructivas empleadas, pero también por la filosofía subyacente, que favorece las actuaciones sobre los efectos visibles, antes que sobre las causas. Sin embargo, en las últimas décadas nuestras sociedades han experimentado un cambio en su percepción y relación con el ambiente, el cual propugna como valores fundamentales el buen estado de los ecosistemas acuáticos y una gestión sostenible de los recursos hídricos. Este cambio de paradigma implica una profunda revisión del papel del ingeniero de ríos en la planificación, intervención y gestión de los espacios fluviales, asumiendo un giro sustancial en el enfoque de las actuaciones, así como la necesidad de colaboración estrecha con profesionales de diversas disciplinas. En este trabajo se discute el nuevo papel del ingeniero de ríos y los retos a los que ha de hacer frente en las sociedades latinoamericanas. En particular se hace énfasis en la singularidad ambiental y social de la región, que requiere del ingeniero de ríos nuevas competencias técnicas, pero también compromiso ambiental y social, así como una participación activa como enlace entre expertos de diversa índole, la sociedad y las autoridades.