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The stability criterion for downward continuation of surface gravity data with various spatial resolutions over Ireland

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10437066" target="_blank" >RIV/00216208:11320/21:10437066 - isvavai.cz</a>

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8bQPimk5pL" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8bQPimk5pL</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s11200-020-0769-7" target="_blank" >10.1007/s11200-020-0769-7</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The stability criterion for downward continuation of surface gravity data with various spatial resolutions over Ireland

  • Original language description

    The differences between local and reference geopotential values are the fundamental quantities of interest in the geodetic boundary value problem approach for connecting independent height reference frames. The local gravity potential values are usually derived from gravimetric and geometric geoid undulations. In determining the short-wavelength components of the gravimetric geoid, a harmonic or analytical downward continuation of the external harmonic functions of gravity to the geoid is necessary. This study analyses the stability of the Poisson downward continuation technique with respect to varying the spatial resolution of surface gravity data in Ireland in order to estimate an effective grid resolution on this reduction. Results of the study show that the minimum range of 500-m resolution provides an unconditionally stable solution to downward continuation without the need for regularisation of the computation algorithm. In this case, downward continued data contribute from -13 to 12 mm to geoid heights and from -0.128 to 0.118 m(2)s(-2) to local gravity potential value at Malin-Head tide gauge station in Ireland.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10500 - Earth and related environmental sciences

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Studia Geophysica et Geodaetica

  • ISSN

    0039-3169

  • e-ISSN

  • Volume of the periodical

    65

  • Issue of the periodical within the volume

    3-4

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    16

  • Pages from-to

    219-234

  • UT code for WoS article

    000692630800001

  • EID of the result in the Scopus database

    2-s2.0-85114135598