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Interactive 3D Visual Analysis of Atmospheric Fronts

Kern, Michael and Hewson, Tim and Schäfler, Andreas and Westermann, Rüdiger and Rautenhaus, Marc (2018) Interactive 3D Visual Analysis of Atmospheric Fronts. IEEE Transactions on Visualization and Computer Graphics, pp. 1-11. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/TVCG.2018.2864806 ISSN 1077-2626

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Official URL: https://ieeexplore.ieee.org/document/8440076

Abstract

Atmospheric fronts play a central role in meteorology, as the boundaries between different air masses and as fundamental features of extra-tropical cyclones. They appear in numerous conceptual model depictions of extra-tropical weather systems. Conceptually, fronts are three-dimensional surfaces in space possessing an innate structural complexity, yet in meteorology, both manual and objective identification and depiction have historically focused on the structure in two dimensions. In this work, we –a team of visualization scientists and meteorologists – propose a novel visualization approach to analyze the three-dimensional structure of atmospheric fronts and related physical and dynamical processes. We build upon existing approaches to objectively identify fronts as lines in two dimensions and extend these to obtain frontal surfaces in three dimensions, using the magnitude of temperature Change along the gradient of a moist potential temperature field as the primary identifying factor. We introduce the use of normal curves in the temperature gradient field to visualize a frontal zone (i.e., the transitional zone between the air masses) and the distribution of atmospheric variables in such zones. To enable for the first time a statistical analysis of frontal zones, we present a new approach to obtain the volume enclosed by a zone, by classifying grid boxes that intersect with normal curves emanating from a selected front. We introduce our method by means of an idealized numerical simulation and demonstrate its use with two real-world cases using numerical weather prediction data.

Item URL in elib:https://elib.dlr.de/123309/
Document Type:Article
Title:Interactive 3D Visual Analysis of Atmospheric Fronts
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kern, MichaelTU MünchenUNSPECIFIED
Hewson, TimECMWF, Reading, UKUNSPECIFIED
Schäfler, AndreasDLR, IPAUNSPECIFIED
Westermann, RüdigerTU MünchenUNSPECIFIED
Rautenhaus, MarcTU MünchenUNSPECIFIED
Date:2018
Journal or Publication Title:IEEE Transactions on Visualization and Computer Graphics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1109/TVCG.2018.2864806
Page Range:pp. 1-11
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1077-2626
Status:Published
Keywords:Three-dimensional displays;Visualization;Weather forecasting;Cyclones;Ocean temperature;Two dimensional displays;Meteorology;Atmospheric Fronts;Feature Detection
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Schäfler, Andreas
Deposited On:19 Nov 2018 09:45
Last Modified:06 Sep 2019 15:19

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