Visual Study of the Benguela Upwelling System using Pathline Predicates

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Date
2017
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The Eurographics Association
Abstract
Due to the nutrient-rich water transported to the upper layer of the ocean, coastal upwelling systems are regions especially important for marine life and fishery. In this work, we focus on a visual analysis of the spatio-temporal structure of the Benguela upwelling system using pathline predicates. Based on the 3D flow field from an ocean model simulation, we first derive space- filling trajectories covering the full model grid. From these, we select and visualize pathlines related to upwelling. In a second step, we derive a 3D scalar field representing the pathline density, which is visualized using volume rendering techniques. Further analyses of the pathlines show a distinct annual cycle in the upwelling activity, which fits well to observation-based analyses found in literature.
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@inproceedings{
10.2312:envirvis.20171099
, booktitle = {
Workshop on Visualisation in Environmental Sciences (EnvirVis)
}, editor = {
Karsten Rink and Ariane Middel and Dirk Zeckzer and Roxana Bujack
}, title = {{
Visual Study of the Benguela Upwelling System using Pathline Predicates
}}, author = {
Nardini, Pascal
and
Böttinger, Michael
and
Scheuermann, Gerik
and
Schmidt, Martin
}, year = {
2017
}, publisher = {
The Eurographics Association
}, ISBN = {
978-3-03868-040-6
}, DOI = {
10.2312/envirvis.20171099
} }
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