| 基于GRACE时变重力场反演南极冰盖质量变化 |
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| 引用本文： | 李军海,刘焕玲,文汉江,朱广彬,方爱平.基于GRACE时变重力场反演南极冰盖质量变化[J].大地测量与地球动力学,2011,31(3):42-46. |
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| 作者姓名： | 李军海 刘焕玲 文汉江 朱广彬 方爱平 |
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| 作者单位： | 1)中国测绘科学研究院，北京 100830;2)辽宁工程技术大学测绘与地理科学学院，阜新 123000;3)武汉大学测绘学院，武汉 430079 |
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| 基金项目： | 国家863计划重点项目(2009AA121402); 国家自然科学基金(40874012) |
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| 摘 要： | 利用UTCSR发布的GRACE Level-2 RL04版本2003-01-2008-08月的重力场模型估计南极冰盖质量变化.由于GRACE提供的C20项不准确,利用SLR测得的C20项进行替换.对于经度方向上出现的条纹状信号,采用去相关滤波处理.选择去掉其中某一个月的位模型重新反演南极冰盖质量变化,发现相同区域的质量...
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| 关 键 词： | GRACE 南极 重力场 相关误差滤波 质量变化率 |
INVESTIGATION ON MASS CHANGE OF ICE SHEET IN ANTARCTIC FROM GRACE TIME-VARIABLE GRAVITY DATA |
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| Li Junhai,Liu Huanling,Wen Hanjiang,Zhu Guangbin,Fang Aiping.INVESTIGATION ON MASS CHANGE OF ICE SHEET IN ANTARCTIC FROM GRACE TIME-VARIABLE GRAVITY DATA[J].Journal of Geodesy and Geodynamics,2011,31(3):42-46. |
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| Authors: | Li Junhai Liu Huanling Wen Hanjiang Zhu Guangbin Fang Aiping |
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| Institution: | Li Junhai1,2),Liu Huanling1,Wen Hanjiang1),Zhu Guangbin3) and Fang Aiping1)(1)Chinese Academy of Surveying and Mapping,Beijing 1008302)School of Mapping and Geographic Science,Liaoning Technical University,Fuxin 1230003)School of Geodesy and Geomatics,Wuhan University,Wuhan 430079) |
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| Abstract: | The rates of Antarctic ice mass change have been estimated by use of the gravity solutions from GRACE level-2 RL04 for the period of January 2003 to August 2008 released by UTCSR.Because C20 of GRACE is not accurate enough,C20 from Satellite Laser Ranging(SLR) is adopted instead.The decorrelation filter technique is used for the stripe shape signal presenting in the longitude direction.Antarctic ice mass change rates are investigated again when the gravity in some one month has been chosen to get rid of,and... |
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| Keywords: | GRACE Antarctica gravity field correlated error filter mass rate |
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