Visual Study of the Benguela Upwelling System using Pathline Predicates
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
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.
Description
@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}
}