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Titolo:
SUB-DAILY RESOLUTION OF EARTH ROTATION VARIATIONS WITH GLOBAL POSITIONING SYSTEM MEASUREMENTS
Autore:
LICHTEN SM; MARCUS SL; DICKEY JO;
Indirizzi:
CALTECH,JET PROP LAB,238-625,4800 OAK GROVE DR PASADENA CA 91109
Titolo Testata:
Geophysical research letters
fascicolo: 6, volume: 19, anno: 1992,
pagine: 537 - 540
SICI:
0094-8276(1992)19:6<537:SROERV>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
GPS ORBIT;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
S.M. Lichten et al., "SUB-DAILY RESOLUTION OF EARTH ROTATION VARIATIONS WITH GLOBAL POSITIONING SYSTEM MEASUREMENTS", Geophysical research letters, 19(6), 1992, pp. 537-540

Abstract

Data from a worldwide Global Positioning System (GPS) tracking experiment have been used to determine variations in Earth rotation (UT1-UTC) over a time period of three weeks. Kalman filtering and smoothing enabled changes in UT1-UTC over intervals of 2 to 24 hrs to be detected with the GPS data. Internal consistency checks and comparisons with other solutions from very long baseline interferometry (VLBI) and satellite laser ranging (SLR) indicate that the GPS UT1-UTC estimates are accurate to about 2 cm. Comparison of GPS-estimated variations in UT1-UTC with 2-hr time resolution over 4 days with predicted variations computed from diurnal and semi-diurnal oceanic tidal contributions strongly suggests that the observed periodic sub-daily variations of approximately 0.1 msec (5 cm) are largely of tidal origin.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/05/20 alle ore 01:16:45