All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

W-0 Estimates in the Frame of the GGOS Working Group on Vertical Datum Standardisation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F14%3A00481944" target="_blank" >RIV/67985815:_____/14:00481944 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216305:26110/14:PU117621

  • Result on the web

    <a href="http://dx.doi.org/10.1007/978-3-319-10837-7_26" target="_blank" >http://dx.doi.org/10.1007/978-3-319-10837-7_26</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/978-3-319-10837-7_26" target="_blank" >10.1007/978-3-319-10837-7_26</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    W-0 Estimates in the Frame of the GGOS Working Group on Vertical Datum Standardisation

  • Original language description

    During the 2011 IUGG General Assembly, GGOS, the IAG Commissions 1 (Reference Frames) and 2 (Gravity Field) and the IGFS established a joint working group devoted to the Vertical Datum Standardisation. This working group supports the activities of GGOS Theme 1 Unified Height System, in particular, to recommend a reliable geopotential value W-0 to be introduced as the conventional reference level for the realisation of the GGOS Vertical Reference System. At present, the most commonly accepted W-0 value corresponds to the best estimate available in 2004. This value presents discrepancies of about 2 m(2) s(-2) with respect to recent computations based on the latest Earth's surface and gravity field models. According to this, as a first approach, four different teams working on the computation of a global W-0 value were brought together in order to compare methodologies and models, and to establish the reliability of the individual computations. Results of this comparison show that the four individual estimates present a maximum discrepancy of about 0.5 m(2) s(-2). They also confirm that the W-0 value declared as the best estimate in 2004 corresponds to an equipotential surface located about 17 cm beneath the sea surface scanned by satellite altimetry, while the potential value U-0 of the GRS80 ellipsoid realises an equipotential surface located about 67 cm lower. In this context, the need to provide a new better estimate of W-0 is evident.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    10308 - Astronomy (including astrophysics,space science)

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2014

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Gravity, Geoid and Height Systems

  • ISBN

    978-3-319-10836-0

  • ISSN

    0939-9585

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

    203-210

  • Publisher name

    Springer

  • Place of publication

    New Yourk

  • Event location

    Venice

  • Event date

    Oct 9, 2012

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000358612900026