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- Arlex Marín-Ramírez, Andrés Gómez-Giraldo, Ricardo Román-Botero, Variación estacional de la temperatura media y los flujos advectivos y atmosféricos de calor en un embalse tropical andino , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 44 Núm. 171 (2020): Limnología
- Andrés Posada-Bedoya, Andrés Gómez-Giraldo, Ricardo Román Botero, Caracterización preliminar de los modos baroclínicos dominantes de un embalse tropical andino durante un período seco , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 43 Núm. 167 (2019)
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En los embalses se producen gases de efecto invernadero por la descomposición microbiana de la materia orgánica en los sedimentos o de otros procesos bioquímicos en la columna de agua y la superficie. Estos gases se emiten a la atmósfera por distintas vías. Concretamente los flujos difusivos dependen de la diferencia de concentración entre el agua y la atmósfera y la velocidad de transferencia de los gases (k) controlada por forzantes hidrodinámicos que alteran la turbulencia en la superficie del agua. El forzante más reconocido de control de la k es la velocidad del viento (U). Numerosos modelos empíricos relacionan estas variables, la mayoría basados en embalses situados en altitudes altas y medias, aunque algunos suelen replicarse en distintos ambientes y latitudes, incluso en sistemas tropicales. Aquí medimos directamente los flujos difusivos de metano en el embalse tropical andino Porce III utilizando cámaras flotantes y las concentraciones del gas por cromatografía de gases. La k se estimó a partir de la ley de difusión o primera ley de Fick y la U en una estación meteorológica ubicada sobre la superficie del embalse para verificar la aplicabilidad de los modelos de velocidad de transferencia de gases propuestos en función de la velocidad del viento en un embalse tropical andino. Los resultados revelaron que dichos modelos, propuestos para lagos y embalses, subestimaron la k en el embalse Porce III.
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