地球物理学报
地毬物理學報
지구물이학보
2009年
11期
2704-2711
,共8页
宋淑丽%朱文耀%熊福文%高峻
宋淑麗%硃文耀%熊福文%高峻
송숙려%주문요%웅복문%고준
毫米级地球参考框%地壳非线性运动%地球质心运动%GPS%SLR%地球物理因素
毫米級地毬參攷框%地殼非線性運動%地毬質心運動%GPS%SLR%地毬物理因素
호미급지구삼고광%지각비선성운동%지구질심운동%GPS%SLR%지구물리인소
Terrestrial reference frame in mm-level%Crustal non-linear movement%Geocenter motion%GPS%SLR%Geophysical factors
本文指出了最新的国际地球参考框架ITRF(International Terrestrial Reference Frame)2005已不能满足当今毫米级地球动态变化监测的需要.提出了利用ITRF2005、SBL/GGFC(Special Bureau for Loading/Global Geophysical Fluids Center)和GRACE(Gravity Recovery and Climate Experiment)等卫星的最新成果,构建毫米级地球参考框架的方案,介绍了对其两个关键问题:地壳非线性运动特征∑_R△X_R~i(t)和地球质心运动△X_0(t)的空间技术(GPS,VLBI,SLR和GRACE)监测和地球物理因素模制的方法和一些初步结果,并对目前建立和实现毫米级地球参考框架存在的问题和所能达到的精度进行了初步评估.
本文指齣瞭最新的國際地毬參攷框架ITRF(International Terrestrial Reference Frame)2005已不能滿足噹今毫米級地毬動態變化鑑測的需要.提齣瞭利用ITRF2005、SBL/GGFC(Special Bureau for Loading/Global Geophysical Fluids Center)和GRACE(Gravity Recovery and Climate Experiment)等衛星的最新成果,構建毫米級地毬參攷框架的方案,介紹瞭對其兩箇關鍵問題:地殼非線性運動特徵∑_R△X_R~i(t)和地毬質心運動△X_0(t)的空間技術(GPS,VLBI,SLR和GRACE)鑑測和地毬物理因素模製的方法和一些初步結果,併對目前建立和實現毫米級地毬參攷框架存在的問題和所能達到的精度進行瞭初步評估.
본문지출료최신적국제지구삼고광가ITRF(International Terrestrial Reference Frame)2005이불능만족당금호미급지구동태변화감측적수요.제출료이용ITRF2005、SBL/GGFC(Special Bureau for Loading/Global Geophysical Fluids Center)화GRACE(Gravity Recovery and Climate Experiment)등위성적최신성과,구건호미급지구삼고광가적방안,개소료대기량개관건문제:지각비선성운동특정∑_R△X_R~i(t)화지구질심운동△X_0(t)적공간기술(GPS,VLBI,SLR화GRACE)감측화지구물리인소모제적방법화일사초보결과,병대목전건립화실현호미급지구삼고광가존재적문제화소능체도적정도진행료초보평고.
It is noted in this paper that the latest international terrestrial reference frame ITRF2005 can't satisfy the current need of monitoring mm-level terrestrial dynamic change.The strategy of using the latest results of ITRF2005,SBL/GGFC（Special Bureau for Loading/Global Geophysical Fluids Center）,GRACE and other satellites to construct mm-level terrestrial reference frame is mentioned in the paper.The methods and some preliminary results for two key problems are introduced in this article: non-linear characteristic of crust movement ∑_RΔX_R~I(t) and geocenter motionΔX_0(t) monitored using space technology (GPS,VLBI,SLR and GRACE) and modeled by geophysical factors.The preliminary assessment of accuracy and problems in constructing and realizing mm-level terrestrial reference frame is also introduced in the paper.
