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    Earth-Like: An education & outreach tool for exploring the diversity of planets like our own

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    Tasker+2019.pdf
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    Description:
    Final Accepted Manuscript
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    Author
    Tasker, Elizabeth J.
    Ishimaru, Kana
    Guttenberg, Nicholas
    Foriel, Julien
    Affiliation
    Univ Arizona, Lunar & Planetary Lab
    Issue Date
    2020-01-13
    Keywords
    Science communication
    education
    exoplanets
    habitability
    climate
    
    Metadata
    Show full item record
    Publisher
    CAMBRIDGE UNIV PRESS
    Citation
    Tasker, E., Ishimaru, K., Guttenberg, N., & Foriel, J. (2020). Earth-Like: An education & outreach tool for exploring the diversity of planets like our own. International Journal of Astrobiology, 19(3), 264-275. doi:10.1017/S1473550419000326
    Journal
    INTERNATIONAL JOURNAL OF ASTROBIOLOGY
    Rights
    © The Author(s) 2020. Published by Cambridge University Press.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Earth-Like is an interactive website and twitter bot that allows users to explore changes in the average global surface temperature of an Earth-like planet due to variations in the surface oceans and emerged land coverage, rate of volcanism (degassing) and the level of the received solar radiation. The temperature is calculated using a simple carbon-silicate cycle model to change the level of CO(2)in the atmosphere based on the chosen parameters. The model can achieve a temperature range exceeding -100 degrees C to 100 degrees C by varying all three parameters, including freeze-thaw cycles for a planet with our present-day volcanism rate and emerged land fraction situated at the outer edge of the habitable zone. To increase engagement, the planet is visualized by using a neural network to render an animated globe, based on the calculated average surface temperature and chosen values for land fraction and volcanism. The website and bot can be found at earthlike.world and on twitter as @earthlikeworld. Initial feedback via a user survey suggested that Earth-Like is effective at demonstrating that minor changes in planetary properties can strongly impact the surface environment. The goal of the project is to increase understanding of the challenges we face in finding another habitable planet due to the likely diversity of conditions on rocky worlds within our Galaxy.
    Note
    6 month embargo; published online 13 January 2020
    ISSN
    1473-5504
    EISSN
    1475-3006
    DOI
    10.1017/s1473550419000326
    Version
    Final accepted manuscript
    ae974a485f413a2113503eed53cd6c53
    10.1017/s1473550419000326
    Scopus Count
    Collections
    UA Faculty Publications

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