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The Contribution of OLG Data and Analysis Centre to EPOS

The Contribution of OLG Data and Analysis Centre to EPOS. G. Stangl 2 , S. Krauss 1 1 IWF/ÖAW, Graz/Austria 2 Federal Office of Metrology and Surveying , Graz/Austria. OLG Data Centre. OLG AC Network CERGOP. OLG AC Network GREECE. Products example AMON velocities.

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The Contribution of OLG Data and Analysis Centre to EPOS

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  1. The Contribution of OLG Data and Analysis Centre to EPOS G. Stangl 2, S. Krauss1 1IWF/ÖAW, Graz/Austria 2 Federal Office ofMetrologyandSurveying, Graz/Austria OLG Data Centre OLG AC Network CERGOP OLG AC Network GREECE Products example AMON velocities • Data Holding ofabout 600 GNSS-stations, 500 ofthempublic • Regional datacentrefor EUREF Permanent Network (EPN) • Access via ftp: olggps.oeaw.ac.at • Focus on stationswithin Europe • CERGOP = Central European Research on Geodynamics Project • Evolvedfrom CEGRN epochnetworkbyaddingpublicand private permanent stations • Research on zonesofintraplatemovements • Monitoring boundaryzonesbetweenEurasianand African plateandotherminorplates (Adriatic, Aegean, Anatolian) • High velocitychangesatsmall (100 km) distances • Data mainlyfrom http://egelados.gein.noa.gr/services/GPS/GPS_DATA/ • Generatedfromweeklyanalysisresults • Referencedto ITRF (presently ITRF2008) • Raw -> Cleaned (outliersremoved) time series • For AMON and CERGOP rotationoftheEurasianplatesubtracted OLG Analysis Centre • Monitoring ofstationsfor European (EUREF) and national (AMON) referenceframes • Analysis of time seriesforreferenceframesandgeokinematics • Analysis ofstationsforionospheremappingand potential earthquakeprecursors • Main productstationvelocities • Permanent analysisaccordingto EPN guidelines OLG AC Network AMON Residual horizontal velocitieswithrespecttoEurasianplate in ITRF2005 OLG AC Network MON • AMON = Austrian Monitoring Network • 3D-Reference Frame for Austria (ETRF2000) • Geokinematicsofthe Eastern Alps Relation to EPOS + Discussion • MON = Monitoring Oriental Network • Plate boundariesaroundtheArabianplate • EPOS canprovide a betterinformation on GNSS dataandproductsfor a broadercommunity • Public dataareavailableforeveroneat OLG DC and AC, just download • GNSS dataproducedbystationsarepartof national infrastructures, mostofthemusedfornavigation (noresearch) • DCs andAcsforresearchare not ownersofstations in mostcases! • Potential financialsupportfrom EPOS hasto find a balancebetweenownersofstationsandprovidersofinforrmation (data + products) • Howto handle financingofresearchinfrastructureby EPOS andsupport non-research infrastructure ? Residual verticalvelocitieswithrespecttoEurasian Plate in ITRF2005

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