Poster (Scientific congresses, symposiums and conference proceedings)
Quality assessment of Mulit-Year BLT Tide Gauge Benchmark Monitoring (TIGA) repro2 Solution
Hunegnaw, Addisu; Teferle, Felix Norman
2016IGS2016 Workshop
 

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Keywords :
TIGA; GPS; BLT
Abstract :
[en] Recently the International GNSS Service (IGS) Tide Gauge Benchmark Monitoring (TIGA) Working Group (WG) has completed their repro2 solutions by re-analyzeing the full history of all relevant Global Positioning System (GPS) observations from 1995 to 2015. This re-processed data set will provide high-quality estimates of vertical land movements for more than 500 stations, enabling regional and global high-precision geophysical/geodetic studies. All the TIGA Analysis Centres (TACs) have mainly processed the GPS observations recorded by GPS stations at or close to tide gauges, which are available from the TIGA data centre at the University of La Rochelle (www.sonel.org). Following the recent improvements in processing models, strategies (http://acc.igs.org/reprocess2.html), this is the first complete re-processing attempt by the TIGA WG to provide homogeneous position time series relevant to sea level changes. In this study we report on a first multi-year daily combined solution from the TIGA Combination Centre (TCC) at the University of Luxembourg (UL) with respect to the latest International Terrestrial Reference Frame (ITRF2014). Using two independent combination software packages, CATREF and GLOBK, we have computed a first daily combined solution from TAC solutions already available for TIGA WG. These combinations allow an evaluation of any effects from the combination software and of the individual TAC parameters and their influences on the combined solution with respect to the latest ITRF2014. Some results of the UL TIGA multi-year combinations in terms of geocentric sea level changes will be presented and discussed.
Research center :
ULHPC - University of Luxembourg: High Performance Computing
Disciplines :
Earth sciences & physical geography
Author, co-author :
Hunegnaw, Addisu  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Teferle, Felix Norman ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
External co-authors :
no
Language :
English
Title :
Quality assessment of Mulit-Year BLT Tide Gauge Benchmark Monitoring (TIGA) repro2 Solution
Publication date :
February 2016
Number of pages :
A0
Event name :
IGS2016 Workshop
Event place :
Sydney, Australia
Event date :
08-02-2016 to 12-02-2016
Audience :
International
Funders :
SGSL and GSCG
Available on ORBilu :
since 04 February 2016

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