FES2014 global ocean tide atlas: design and performance [PDF]
Ocean Science, 2021 Since the mid-1990s, a series of FES (finite element solution) global ocean tidal atlases has been produced and released with the primary objective to provide altimetry missions with tidal de-aliasing correction at the best possible accuracy. We describe
F. H. Lyard +4 more
doaj +1 more source
Local effects of redundant terrestrial and GPS-based tie vectors in ITRF-like combinations [PDF]
, 2009 Tie vectors (TVs) between co-located space geodetic instruments are essential for combining terrestrial reference frames (TRFs) realised using different techniques.
Altamimi Z. +4 more
core +2 more sources
Thirty Years of Maintaining WGS 84 with GPS
NavigationWith the release of a new International Terrestrial Reference Frame (ITRF) in April 2022, the National Geospatial-Intelligence Agency (NGA) began the process of aligning the World Geodetic System 1984 Terrestrial Reference Frame (WGS 84 TRF) to the ...
William Konyk +3 more
doaj +1 more source
The NKG2008 GPS campaign – final transformation results and a new common Nordic reference frame
Journal of Geodetic Science, 2016 The NKG 2008 GPS campaign was carried out in September 28 – October 4, 2008. The purpose was to establish a common reference frame in the Nordic- Baltic-Arctic region, and to improve and update the transformations from the latest global ITRF reference ...
Häkli P. +8 more
doaj +1 more source
ITRF Densification and Continuous Realization by the IGS [PDF]
, 1998 The tools and infrastructure are now in place to realize a global, terrestrial, kinematic reference frame with few millimeter precision, which is both spatially dense, and can be reliably updated on a frequent basis (e.g., monthly). A procedure is outlined by which IERS can continuously realize the ITRF using methodology developed by the International ...
G. Blewitt +5 more
openaire +1 more source
Improved modelling for future VLBI contributions to ITRF
, 2023 The latest realization of the International Terrestrial Reference System, ITRF2020, was released in April 2022.When evaluating this terrestrial reference frame (TRF) , it was found that the scales from VLBI and SRL are in good agreement between 1998 and 2013.75, the difference is about 0.15 ppb.
Nilsson, Tobias +2 more
openaire +1 more source
Relevance of PSInSAR analyses at ITRF co-location sites [PDF]
, 2023 The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Collilieux, Xavier +12 more
openaire +3 more sources
Converted Total Least Squares method and Gauss-Helmert model with applications to transformation among ITRF realizations [PDF]
, 2019 This thesis is an extension and improvement of the theory and applications of Converted Total Least Squares method (CTLS). Converted Total Least Squares (CTLS) dealing with the errors-in-variables (EIV) model take the stochastic design matrix elements as
Dong, Dalu
core +1 more source
Definicija, realizacija in vzdrževanje modernih koordinatnih sistemov : Definition, Realization and Maintenance of Modern Coordinate Systmes [PDF]
Geodetski Vestnik, 2009 SI: Prispevek obravnava načela definicije, realizacije in vzdrževanja koordinatnih sistemov. S satelitskimi metodami določanja položaja se je pojavila potreba po enotnem globalnem koordinatnem sistemu, definiranem na podlagi CTRS.
Bojan Stopar +3 more
doaj
cavsiopy: a Python package to calculate and visualize spacecraft instrument orientation
Frontiers in Astronomy and Space Sciences, 2023 Spacecraft attitude plays an important role in the observations of various atmospheric, planetary, and terrestrial parameters and phenomena that are of interest to the scientific community.
E. Ceren Kalafatoglu Eyiguler +8 more
doaj +1 more source