利用Lageos卫星(1993~2002期间)全球激光测距资料精确测定地球定向参数及地心的变化,并将EOP(SHA)序列的结果与同期的EOP(IERS)C04进行比较,符合程度:极移XP—0.39mas,YP—0.41mas,日长Dr在0.03ms左右。地心在X,Y方向大约有1cm左右的变化,在Z方向有3~4cm左右的变化。 更多还原
【Abstract】 We solve the Earth Orientation Parameter (EOP) and the geocentric variation using the Lageos Satellite Laser Range (SLR) data from 1993 to 2002. The results are compared with EOP(IERS)C04 and (IERS)geocentric variation during the same period. The EOP(SHAO) shows the consistency of Xp—0.39 mas, Yp—0.41 mas for the polar motion and Dr—0.03 ms for the length-of-day (LOD) variation. The geocentric variation shows the accuracy of X,Y—1.0 cm and Z—3~4 cm. 更多还原