000196293 001__ 196293
000196293 003__ CZ-ZdVUG
000196293 005__ 20220621102741.0
000196293 041__ $$aeng
000196293 040__ $$aABC039$$bcze
000196293 1001_ $$aPálinkáš, Vojtech
000196293 24510 $$aStatus of the International Gravity Reference System and Frame
000196293 300__ $$a9 stran
000196293 5203_ $$aThe increasing importance of terrestrial gravimetry in monitoring global change processes, in providing a reference for satellite measurements and in applications in metrology necessitates a stable reference system reflecting the measurement accuracy achievable by modern gravimeters. Therefore, over the last decade, the International Association of Geodesy (IAG) has developed a system to achieve accurate, homogeneous, long-term global recording of Earth’s gravity, while taking advantage of the potential of today’s absolute gravity measurements. The current status of the International Gravity Reference System and Frame is presented as worked out by the IAG Joint Working Group 2.1.1 “Establishment of a global absolute gravity reference system” during the period 2015–2019. Here, the system is defined by the instantaneous acceleration of free-fall, expressed in the International System of Units (SI) and a set of conventional corrections for the time-independent components of gravity effects. The frame as the systems realization includes a set of conventional temporal gravity corrections which represent a uniform set of minimum requirements. Measurements with absolute gravimeters, the traceability of which is ensured by comparisons and monitoring at reference stations, provide the basis of the frame. A global set of such stations providing absolute gravity values at the microgal level is the backbone of the frame.
000196293 655_4 $$ačlánek v časopise
000196293 7730_ $$92021$$dSpolková republika Německo,2021.$$g95. (1), 9 s.$$tJournal of Geodesy$$x0949-7714
000196293 8564_ $$uhttps://link.springer.com/article/10.1007/s00190-020-01438-9
000196293 85642 $$ahttps://www.isvavai.cz/riv?s=rozsirene-vyhledavani&ss=detail&n=0&h=RIV%2F00025615%3A_____%2F21%3AN0000004%21RIV21-MSM-00025615
000196293 910__ $$aABC039
000196293 980__ $$aclanky_vugtk
000196293 985__ $$apalinkas
000196293 985__ $$ariv
000196293 985__ $$autvar24