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EUREF 2012 Symposium National Report of Austria by Günter Stangl, Norbert Höggerl, Jürgen Otter, - PowerPoint PPT Presentation


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EUREF 2012 Symposium National Report of Austria by Günter Stangl, Norbert Höggerl, Jürgen Otter, Diethard Ruess , Ernst Zahn (BEV) Sandro Krauss, H.-P.Ranner (IWF) Saint Mandé, France June 6 th to June 8 th , 2012. Permanent GNSS-Networks.

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EUREF 2012 Symposium National Report of Austria by Günter Stangl, Norbert Höggerl, Jürgen Otter,

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EUREF 2012 Symposium

National Report of Austria

by

Günter Stangl, Norbert Höggerl, Jürgen Otter,

Diethard Ruess, Ernst Zahn (BEV)

Sandro Krauss, H.-P.Ranner (IWF)

Saint Mandé, France

June 6th to June 8th, 2012


Permanent GNSS-Networks

Cooperation between BEV and OLG Observatory Lustbühel/Graz

5 Networks:

EPN – Subnetwork (80 stations)

MON - Eastern Medit./Arabian Plate (65 stations)

CERGOP – Central European Geodynamic Network (80 stations)

AMON - Austrian Monitoring (85 stations)

GREC – Greek testbed for ionosphere, earthquakes and geokinematics (60 stations)

AMON08 solution:

Base for the whole national realization of ETRS89 in AUSTRIA

Check for Lifetime: AMON horizontal velocities ETRF2000 from cumulated time series 1999-2012


ETRS89

HORTH = HELL – NGRS80

Height in Use (MGI)HGEBR

Correction value

Grid 1

Grid 2

= (HNORM – HGEBR) + (HORTH – HNORM)

HORTH – HGEBR

Transformation Grid between Horth and HGEBR (Height-Grid)

  • Used for laser scanning data

  • Advantages: homogeneous for the entire area (Austria)


Grid 1: Modelling of Differences HNORM - HGEBR

  • different tide gauges: about -30cm

  • use of levelling results

  • no correlation with elevation

Grid 2: Modelling of Differences HORTH – HNORM ~

  • 53.000 g-values (surface)

  • use of interpolated g-Values

    (Bouguer-map):

    50.800 control points

    47.200 levelling points

    358.000 grid points of DTM (500m)

  • correlation with elevation


Resulting Height Grid = Grid 1 + Grid 2

  • GRID ,  (MGI)

  • Grid width 15“x22.5“ (≈ 500 x 500 m)

  • Precision of transformation < 5 cm


Gravity

European Comparison of AG in Walferdange

ECAG 2011:

Austria participated with FG5-242 in the

Key Comparison EURAMET.M.G-K1

AG-Meeting in Vienna, BEV, February 2012:

JWG 2.1-Techniques and Metrology in AG and

JWG 2.2-Absolute Gravimetry and

Absolute Gravity Reference System

Build-up of a gravity base network in Italy/

Autonomous Province Bozen:

6 stations

Walferdange/Luxemburg

Gravity Base network Province Bozen/Italy


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