- AutorIn
- Pascal Nardini
- Michael Böttinger
- Hans Pogrzeba
- Lydia Siegfried
- Martin Schmidt
- Gerik Scheuermann
- Titel
- Numerical Evaluation of Pathline Predicates of the Benguela Upwelling System
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa2-328052
- Quellenangabe
- LEVIA’18
Herausgeber: Jänicke, Stefan, Hotz, Ingrid, Liu, Shixia
Erscheinungsjahr: 2018 - Erstveröffentlichung
- 2018
- Abstract (EN)
- Using simulation data of a regional ocean model, Nardini et al. applied pathline predicates for a detailed post-hoc analysis of the Benguela upwelling system. In this work, we evaluate the accuracy of this technique. Using different temporal samplings, we aim at finding minimum requirements for the temporal resolution of the flow data in the context of retroactive particle pathline techniques. Besides the flow field, our simulation data contains synthetic tracer fields for different tracer source regions. Using the flow data, dense trajectories are computed to enable deriving ”emulated tracer fields” based on the local ratio of pathline particles originating from tracer source regions to other ones, which can then be compared to the original tracer fields. We find that the emulated tracer concentrations are overestimated in comparison to the original ones. However, the shape of the regions with high tracer concentration can be reproduced.
- Freie Schlagwörter (EN)
- Benguela Upwelling System, pathline predicates, evaluation
- Klassifikation (DDC)
- 006
- URN Qucosa
- urn:nbn:de:bsz:15-qucosa2-328052
- Veröffentlichungsdatum Qucosa
- 25.01.2019
- Dokumenttyp
- Konferenzbeitrag
- Sprache des Dokumentes
- Englisch