Atmospheric Sounding Visualization Sancho McCann Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free.

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Presentation transcript:

Atmospheric Sounding Visualization Sancho McCann Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is available at

Soundings Pressure Altitude Temperature Moisture Wind Speed Wind Direction

Meteorology 101 Temp.20º15º10º5º R.H.40%60%80%100%

Temp.20º15º10º5º R.H.40%60%80%100% Meteorology 101 At 100% humidity, the temperature has reached the dewpoint

Meteorology 101 Lifting causes cooling at 9.8ºC per 1000m

Meteorology 101 Inside a cloud, the temperature decreases much more slowly ~ 6º per 1000m

Sample Sounding Data SLE Salem Observations at 12Z 08 Oct PRES HGHT TEMP DWPT RELH MIXR DRCT SKNT THTA THTE THTV hPa m C C % g/kg deg knot K K K

Skew-T Diagram

Problems Easy to forget Easy to make mistakes Difficult to compare Information doesn’t pop out

AtmosView

Use Scenarios

DEMO

Informal Evaluation 2 Students Given instruction on the AtmosView Given a set of questions to answer Given instruction on the Skew-T Given a set of questions to answer

Strengths Successful improvement to Skew-T Data pops out Quick comparisons Useable in miniature Not reliant on colour

Areas for Improvement Temperature not displayed

Future Work Improve usability of system Target audience: amateur meteorologists (glider pilots, students, storm-chasers)