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    Reconstructing the past climate at Gale crater, Mars, from hydrological modeling of late-stage lakes

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    Name:
    Horvath_et_al-2017-Geophysical ...
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    FInal Published Version
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    Author
    Horvath, David G. cc
    Andrews-Hanna, Jeffrey C. cc
    Affiliation
    Univ Arizona, Lunar & Planetary Lab
    Issue Date
    2017-08-28
    Keywords
    Gale crater
    hydrology
    climate
    
    Metadata
    Show full item record
    Publisher
    AMER GEOPHYSICAL UNION
    Citation
    Reconstructing the past climate at Gale crater, Mars, from hydrological modeling of late-stage lakes 2017, 44 (16):8196 Geophysical Research Letters
    Journal
    Geophysical Research Letters
    Rights
    ©2017. American Geophysical Union. All Rights Reserved.
    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
    The sedimentary deposits in Gale crater may preserve one of the best records of the early Martian climate during the Late Noachian and Early Hesperian. Surface and orbital observations support the presence of two periods of lake stability in Gale craterprior to the formation of the sedimentary mound during the Late Noachian and after the formation and erosion of the mound to its present state in the Early Hesperian. Here we use hydrological models and late-stage lake levels at Gale, to reconstruct the climate of Mars after mound formation and erosion to its present state. Using Earth analog climates, we show that the late-stage lakes require wetter interludes characterized by semiarid climates after the transition to arid conditions in the Hesperian. These climates are much wetter than is thought to characterize much of the Hesperian and are more similar to estimates of the Late Noachian climate.
    Note
    6 month embargo; published online: 28 August 2017
    ISSN
    00948276
    DOI
    10.1002/2017GL074654
    Version
    Final published version
    Sponsors
    NASA's Solar System Workings program [NNX16AL95G]
    Additional Links
    http://doi.wiley.com/10.1002/2017GL074654
    ae974a485f413a2113503eed53cd6c53
    10.1002/2017GL074654
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