Statistics – Computation
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010adspr..46.1633a&link_type=abstract
Advances in Space Research, Volume 46, Issue 12, p. 1633-1647.
Statistics
Computation
Scientific paper
In its function as an ITRS Combination Centre, DGFI is in charge with the computation of an ITRF2008 solution. The computation methodology of DGFI is based on the combination of datum-free normal equations (weekly or session data sets, respectively) of station positions and Earth orientation parameters (EOP) from the geodetic space techniques DORIS, GPS, SLR and VLBI. In this paper we focus on the DORIS part within the ITRF2008 computations. We present results obtained from the analysis of the DORIS time series for station positions, network translation and scale parameters, as well as for the terrestrial pole coordinates. The submissions to ITRF2008 benefit from improved analysis strategies of the seven contributing IDS analysis centres and from a combination of the weekly solutions of station positions and polar motion. The results show an improvement by a factor of two compared to past DORIS data submitted to ITRF2005, which has been evaluated by investigating the repeatabilities of position time series. The DORIS position time series were analysed w.r.t. discontinuities and other non-linear effects such as seasonal variations. About 40 discontinuities have been identified which have been compared with the results of an earlier study. Within the inter-technique combination we focus on the DORIS contribution to the integration of the different space geodetic observations and on a comparison of the geodetic local ties with the space geodetic solutions. Results are given for the 41 co-location sites between DORIS and GPS.
Angermann Detlef
Drewes Hermann
Seitz Manuela
No associations
LandOfFree
Analysis of the DORIS contributions to ITRF2008 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analysis of the DORIS contributions to ITRF2008, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of the DORIS contributions to ITRF2008 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1493700