极地研究

极地研究 ›› 1995, Vol. 7 ›› Issue (3): 115-118.

• 目次 • 上一篇    

南极中山站固体潮观测分析

郝兴华;许厚泽;吕纯操   

  • 出版日期:1995-09-30 发布日期:1995-09-30

ANALYSIS OF GRAVITY TIDES OBSERVATION AT ZHONGSHAN STATION IN ANTARCTICA

  • Online:1995-09-30 Published:1995-09-30

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摘要：

中国南极中山站位于南极拉斯曼丘陵地区（λ＝７６°２２′Ｅ，φ＝６９°２２′Ｓ），１９９１年３月至１９９３年２月，用ＬａｃｏｓｔｅＥＴ型重力仪，在这个地区进行了为期近两年的观测，取得了６００多天的有效资料，经调和分析和流变模型、海潮负荷改正后得到：δｏ１＝１．２２５３±０．００３１，Δφｏ１＝０．７３°±０．１４°；δｍ２＝１．０７８５±０．００４５，Δφｍ２＝－３．５５°±０．２９°从资料分析的精度来看，观测资料是比较好的；但由于海潮负荷改正缺少附近海域的资料，会对最终结果造成较大的影响

关键词: 固体潮,潮汐因子,相位滞后,海潮,重力仪,中山站

Abstract:

Using a Lacoste ET gravimeter(No.20) we observed the gravity tide from March 1991 to Feb. 1993 at Zhongshan Station which is located at Larsemann Hills (λ=76°22′E,φ=69°22′S) in Antarctica and obtained effective data of more than 600 days.After correction for ocean effects and rheological model of gravimeter we get:δ O 1 =1.2253±0.0031;φ O 1 =0.73°±0.14°;δ M 2 =1.0785±0.0045;φ M 2 =-3.55°±0.29° According to the precision of analysis of the data the observation results are good. However the final precision of results will be affected by the poorer precision of ocean tide correction because of the lack of ocean tides data nearly area.