Dissolution of a CO2 lake, modeled by using an advanced vertical turbulence mixing scheme

Autor:	Kristin Rygg, Guttorm Alendal, Peter M. Haugan, Lars Inge Enstad
Rok vydání:	2008
Předmět:	Meteorology MIT General Circulation Model Chemistry K-epsilon turbulence model Turbulence Ocean current Mechanics Management Monitoring Policy and Law Pollution Industrial and Manufacturing Engineering Plume Eddy diffusion General Energy Dissolution Mixing (physics)
Zdroj:	International Journal of Greenhouse Gas Control. 2:511-519
ISSN:	1750-5836
DOI:	10.1016/j.ijggc.2008.04.001
Popis:	The dissolution of CO2 from a CO2 lake with and without a hydrate layer, located at a flat bottom at 3000 m depth has been modeled using the MIT General Circulation Model coupled with the General Ocean Turbulence Model (GOTM). The vertical turbulent mixing scheme takes into account density effects and should give more realistic results for the CO2 plume than previously used constant eddy diffusivity models. The introduction of a third direction gives qualitatively different results for the spreading of the CO2 plume than previous 2D results. The dissolution rate and near field dissolved CO2 concentrations approach a steady state for a given far field ocean current within less than a day. The dissolution rate is highly dependent on the velocity of the ambient current and is reduced with 1.6 when a hydrate layer is introduced.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1937acbe9322a674ef621149358657ce https://doi.org/10.1016/j.ijggc.2008.04.001 Zobrazit plný text záznamu Full Text from ScienceDirect