6533b7ddfe1ef96bd1273f7c

RESEARCH PRODUCT

Geodetic data analysis of VGOS experiments

Torben SchuelerWalter AlefOkky S. JenieYngvild L. AndalsvikHelge RottmannLaila LovhoidenAnastasiia GirdiukJames M. AndersonDieter UllrichMinghui XuRüdiger HaasPablo De VicenteNataliya ZubkoChristian PlötzArno MueskensAlexander NeidhardtAlexey A. MelnikovYoon Kyung ChoiF. JaronJavier GonzalezMatthias SchartnerJohannes BoumannF. ColomerIvan Marti-vidalDaniela ThallerElena Castro MartínezTuomas SavolainenEskil VareniusArpad SzomoruGerald EngelhardtJan WagnerRoger HammargrenLeonid PetrovH. VerkouterDes SmallJakob GruberJohannes BöhmNiko KareinenA. NothnagelClaudia FlohrerS. BernhartMartin HohlneicherHarald Schuh

subject

UpgradeVery-long-baseline interferometryBroadbandMode (statistics)X bandGeodetic datumAstrometryGeodesyGeologyReference frame

description

Very Long Baseline Interferometry (VLBI) serves as one of the common geodetic methods to define the global reference frames and monitor Earth's orientation variations. The technical upgrade of the VLBI method known as the VLBI Global Observing System (VGOS) includes a critical re-design of the observed frequencies from the dual band mode (S and X band, i.e. 2 GHz and 8 GHz) to observations in a broadband (2 – 14 GHz). Since 2019 the first VGOS experiments are available for the geodetic analysis in free access at the International VLBI service for Geodesy and Astrometry (IVS). Also regional-only subnetworks such as European VLBI stations have succeeded already in VGOS mode. Based on these brand-new observations we review the current geodetic data analysis workflow to build a bridge between geodetic observed delays derived from different bands.

yearjournalcountryeditionlanguage
2021-08-282021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)
https://doi.org/10.23919/ursigass51995.2021.9560322