User perception and interpretation of tornado probabilistic hazard information: Comparison of four graphical designs

Miran, Seyed M.; Ling, Chen; James, Joseph J.; Gerard, Alan; Rothfusz, Lans

doi:10.1016/j.apergo.2017.06.016

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

i

User perception and interpretation of tornado probabilistic hazard information: Comparison of four graphical designs

2017
By Miran, Seyed M. ; Ling, Chen ; James, Joseph J. ; ...
Source: App Ergonomics 66: 277-285

[PDF-1.18 MB]

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Journal Title:

Applied Ergonomics
Personal Author:

Miran, Seyed M. ; Ling, Chen ; James, Joseph J. ; Gerard, Alan ; Rothfusz, Lans

Miran, Seyed M. ; Ling, Chen ; James, Joseph J. ; Gerard, Alan ; Rothfusz, Lans Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory) ; CIMMS (Cooperative Institute for Mesoscale Meteorological Studies)

OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory) ; CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) Less -
Description:

Effective design for presenting severe weather information is important to reduce devastating consequences of severe weather. The Probabilistic Hazard Information (PHI) system for severe weather is being developed by NOAA National Severe Storms Laboratory (NSSL) to communicate probabilistic hazardous weather information. This study investigates the effects of four PHI graphical designs for tornado threat, namely, “four-color”,” red-scale”, “grayscale” and “contour”, on users’ perception, interpretation, and reaction to threat information. PHI is presented on either a map background or a radar background. Analysis showed that the accuracy was significantly higher and response time faster when PHI was displayed on map background as compared to radar background due to better contrast. When displayed on a radar background, “grayscale” design resulted in a higher accuracy of responses. Possibly due to familiarity, participants reported four-color design as their favorite design, which also resulted in the fastest recognition of probability levels on both backgrounds. Our study shows the importance of using intuitive color-coding and sufficient contrast in conveying probabilistic threat information via graphical design. We also found that users follows a rational perceiving-judging-feeling-and acting approach in processing probabilistic hazard information for tornado.
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Color Coding Contrast Decision-making Natural Hazard Probabilistic Information
Source:

App Ergonomics 66: 277-285
DOI:

https://doi.org/10.1016/j.apergo.2017.06.016
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Journal Article
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urn:sha256:94b05a9cb30b0a5a1d693c04f6100e873ad3ed2c1963f09445a6bdc0da72fc69
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User perception and interpretation of tornado probabilistic hazard information: Comparison of four graphical designs

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