Earth-Like: An education & outreach tool for exploring the diversity of planets like our own
AffiliationUniv Arizona, Lunar & Planetary Lab
MetadataShow full item record
PublisherCAMBRIDGE UNIV PRESS
CitationTasker, 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
Rights© The Author(s) 2020. Published by Cambridge University Press.
Collection InformationThis 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 email@example.com.
AbstractEarth-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.
Note6 month embargo; published online 13 January 2020
VersionFinal accepted manuscript