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

Abstract

The main focus of this thesis is the effect of topographic features on the transport of tracers in the bottom boundary layer. The thesis covers two specific studies; transport of CO 2 which is directly introduced into the deep ocean and transport of passive food particles to cold-water corals. The study is performed using Reynolds Averaged Navier Stokes Models (RANS) on a relative small scale with horizontal grid sizes ranging from 75 meter to approximately 1 meter. A general background for the study is given in Part I, and Part II consists of the four included papers. Papers included in this thesis The following papers are included in this thesis; Paper A: Dissolution of a CO 2 lake, modeled by using an advanced vertical turbulence mixing scheme, L.

Multi-model projections of future evaporation in a sub-tropical lake

“…The surface fluxes of momentum, sensible and latent heat are calculated according to the bulk formulae explained by Fairall et al (1996). This model has been used to model CO 2 dissolution (Enstad et al, 2008), water quality in lakes (Kong et al, 2022), to predict lake ecosystem state (Andersen et al, 2020) and to hindcast the thermal structure of lakes (Ayala et al, 2020;Moras et al, 2019).…”

LakeEnsemblR: An R package that facilitates ensemble modelling of lakes

“…It was initially developed for modelling turbulence in the ocean (Burchard et al, 2006), but it has been recently adapted for use in hydrodynamic modelling in lakes (Sachse et al, 2014). GOTM has been used to model the dissolution of CO2 in lakes (Enstad et al, 2008), extreme events in a eutrophic marine system (Ciglenečki et al, 2015), impact of macrophytes on water quality (Sachse et al, 2014) and hindcasting and future climate change projections of the thermal structure of a lake (Ayala et al, 2020;Moras et al, 2019). LakeEnsemblR version 1.0.0 uses version 5.4.0 of the lake branch of GOTM.…”

Efficient marine environmental characterisation to support monitoring of geological CO2 storage

“…How CO 2 is transported, and how rapidly the concentration reduces to normal with distance from the leak site, will determine how large an area will experience a temporal acidification. This will be governed by the anisotropic tidal current, the general flow field in the area, and local turbulence and mixing regime (Ali et al, 2016;Blackford et al, 2020;Enstad et al, 2008).…”