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Exploring Cyclone Evolution with Hierarchical Features
Linköpings universitet, Institutionen för teknik och naturvetenskap, Medie- och Informationsteknik. Linköpings universitet, Tekniska fakulteten.
TU Kaiserslautern, Germany.
Linköpings universitet, Institutionen för teknik och naturvetenskap, Medie- och Informationsteknik. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för teknik och naturvetenskap, Medie- och Informationsteknik. Linköpings universitet, Tekniska fakulteten.ORCID-id: 0000-0001-5352-1086
Vise andre og tillknytning
2022 (engelsk)Inngår i: 2022 IEEE WORKSHOP ON TOPOLOGICAL DATA ANALYSIS AND VISUALIZATION (TOPOINVIS 2022), IEEE , 2022, s. 92-102Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The problem of tracking and visualizing cyclones is still an active area of climate research, since the nature of cyclones varies depending on geospatial location and temporal season, resulting in no clear mathematical definition. Thus, many cyclone tracking methods are tailored to specific datasets and therefore do not support general cyclone extraction across the globe. To address this challenge, we present a conceptual application for exploring cyclone evolution by organizing the extracted cyclone tracks into hierarchical groups. Our approach is based on extrema tracking, and the resulting tracks can be defined in a multi-scale structure by grouping the points based on a novel feature descriptor defined on the merge tree, so-called crown features. Consequently, multiple parameter settings can be visualized and explored in a level-of-detail approach, supporting experts to quickly gain insights on cyclonic formation and evolution. We describe a general cyclone exploration pipeline that consists of four modular building blocks: (1) an extrema tracking method, (2) multiple definitions of cyclones as groups of extrema, including crown features, (3) the correlation of cyclones based on the underlying tracking information, and (4) a hierarchical visualization of the resulting feature tracks and their spatial embedding, allowing exploration on a global and local scale. In order to be as flexible as possible, our pipeline allows for exchanging every module with different techniques, such as other tracking methods and cyclone definitions.

sted, utgiver, år, opplag, sider
IEEE , 2022. s. 92-102
Emneord [en]
Human-centered computing; Visualization; Visualization design and evaluation methods; Human-centered computing; Visualization; Visualization application domains; Scientific visualization
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-191881DOI: 10.1109/TopoInVis57755.2022.00016ISI: 000913326500010ISBN: 9781665493543 (digital)ISBN: 9781665493550 (tryckt)OAI: oai:DiVA.org:liu-191881DiVA, id: diva2:1738719
Konferanse
IEEE VIS Workshop on Topological Data Analysis and Visualization (TopoInVis), Oklahoma City, OK, oct 17, 2022
Merknad

Funding Agencies|SeRC (Swedish e-Science Research Center); ELLIIT environment for strategic research in Sweden; Swedish Research Council (VR) [2019-05487]

Tilgjengelig fra: 2023-02-22 Laget: 2023-02-22 Sist oppdatert: 2023-06-09

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Nilsson, EmmaMasood, Talha BinHotz, Ingrid

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