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    Small scale magnetic structure in the induced Martian ionosphere and lower magnetic pile-up region

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    Readme, including data dictionary (180.1Kb)
    Excel File of Characteristics of small-scale magnetic structures at Mars (276.1Kb)
    Issue Date
    2022-03-23
    Author
    Hamil, Oliver
    Cravens, Thomas
    Renzaglia, Antonio
    Andersson, Laila
    Type
    Dataset
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    Abstract
    Small-scale magnetic structures have been observed in the induced Martian ionosphere by magnetometers onboard the Mars Global Surveyor (MGS) and the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. The origin and evolution of these structures remain poorly understood and the goal of the current paper is to better characterize them and their distribution in the dayside ionosphere using MAVEN data. MAVEN Langmuir probe data is used to find thermal pressures in the ionosphere. The structures studied range in size from about 20 km up to a couple of hundred km. We constrain our investigation to the northern hemisphere, dayside Martian ionosphere in order to minimize crustal magnetic field interference. Magnetic pressure spikes (and/or field component variations), along with thermal pressure behavior can also sometimes characterize small-scale structures. Minimum variance analyses (MVA) are carried out for each structure in order to help classify them (e.g., horizontal slabs, ionopause-like structures, flux tube and flux ropes). A “statistical” catalog of properties (pressure, field amplitude, ellipticity, width, etc.) is generated for about 1000 structures. One conclusion we reached from this survey is that slab-like features are more likely to be found than rope-like features for altitudes above 250 km. Paper published in J. Geophys. Res. ,2022
    Description
    The data is in the form of an Excel file and contains data used for many of the figures in the 2022 J. Geophys. Res. paper at https://doi.org/10.1029/2021JA030139. The data included in this KU archive is meant to be supplemental.
    URI
    http://hdl.handle.net/1808/32670
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    • Physics & Astronomy Scholarly Works [1713]

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    785-864-8983
    KU Libraries
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    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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