Journal of the Geodetic Society of Japan最新文献_第7页

Gravity Variations and Global Pressure Loading. 重力变化和全球压力负荷。

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.267

J. Boy, P. Gegout, J. Hinderer

引用次数: 10

Program VAV/2000 for Tidal Analysis of Unevenly Spaced Data with Irregular Drift and Colored Noise 程序VAV/2000潮汐分析不规则漂移和彩色噪声的不均匀间隔数据

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.281

A. P. Venedikov, J. Arnoso, R. Vieira

引用次数: 31

On the Validity of Environmental Parameters in Gravimetric Tidal Analyses. 论重力潮汐分析中环境参数的有效性。

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.287

H. Dittfeld

引用次数: 0

The Geodynamic Observatory Moxa/Germany: Instrumentation and Purposes. 地球动力学观测站Moxa/德国:仪器和目的。

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.34

T. Jahr, G. Jentzsch, C. Kroner

引用次数: 21

Tidal Gravity Observations along the Atlantic Coast of France With LCR G906 利用LCR G906观测法国大西洋沿岸的潮汐重力

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.114

B. Ducarme, M. Ruymbeke, Abdelbar El Wahabi

引用次数: 4

Humidity and Temperature Effects on LaCoste & Romberg Gravimeters. 湿度和温度对LaCoste & Romberg重力仪的影响。

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.10

Abdelbar El Wahabi, B. Ducarme, M. Ruymbeke

{"title":"Humidity and Temperature Effects on LaCoste & Romberg Gravimeters.","authors":"Abdelbar El Wahabi, B. Ducarme, M. Ruymbeke","doi":"10.11366/SOKUCHI1954.47.10","DOIUrl":"https://doi.org/10.11366/SOKUCHI1954.47.10","url":null,"abstract":"LaCoste & Romberg (LCR) gravimeters are able to record small non tidal gravity variations for periods ranging from some days to several months if one corrects the instrumental effects due to air temperature and humidity. An experiment has been carried out in five stations using the same gravimeter (the LCR G906) and the temperature effect was established for short and medium periods. At Membach (Belgium), the LCR G906 was installed next to the superconducting gravimeter C021 in very stable conditions of humidity and temperature and after removing a long term drift from the LCR G906 signal, the gravity variations recorded by both instruments agree at the microgal level. In order to reach a similar result with LCR gravimeters in stations where the temperature and humidity are not stable, some experiments were performed in the fundamental station of Brussels in the Royal Observatory of Belgium (ROB) using the LCR G8 to study the meteorological influences. This gravimeter showed a correlation with the humidity signal for periods longer than 10 days. To a humidity step of 35%, it reacted quasi-instantaneously by going steadily up by more than 1.5 milligal in three months and going down similarly while the humidity was returning to normal. We showed that the LCR G8 behaves like an integrator of air humidity changes. With this experiment, we partially met the result of Bastien et al (1990) and we significantly improved the understanding of the behaviour of LCR gravimeters on what concerns the humidity effect. As the reaction of each gravimeter is different, a similar experiment should be performed for each instrument.","PeriodicalId":39875,"journal":{"name":"Journal of the Geodetic Society of Japan","volume":"6 1","pages":"10-15"},"PeriodicalIF":0.0,"publicationDate":"2001-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64259375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Did Huge Earthquake Excite Free Core Nutation 大地震激发了自由核章动吗

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.198

T. Shirai, T. Fukushima

引用次数: 6

GOTIC2: A Program for Computation of Oceanic Tidal Loading Effect 海洋潮汐荷载效应计算程序[j]

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.243

Koji Matsumoto, Tadahiro Sato, T. Takanezawa, M. Ooe

引用次数: 206

Beyond Tides - Determination of Core Properties from Superconducting Gravimeter Observations 潮汐之外——超导重力仪观测的核心特性测定

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.364

D. E. Smylie, O. Francis, J. Merriam

引用次数: 8

Tidal History of the Earth-Moon Dynamical System before Cambrian Age 寒武纪以前地月动力系统的潮汐史

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI: 10.11366/SOKUCHI1954.47.514

M. Abe, M. Ooe

{"title":"Tidal History of the Earth-Moon Dynamical System before Cambrian Age","authors":"M. Abe, M. Ooe","doi":"10.11366/SOKUCHI1954.47.514","DOIUrl":"https://doi.org/10.11366/SOKUCHI1954.47.514","url":null,"abstract":"Tidal evolution of the earth-moon system was evaluated by estimating the change of dynamic responses of ocean and solid earth to the lunar and solar tidal force during the geological time. The effect of tide on the moon due to the earth was included in the evaluation. We obtained time variations of the orbital elements of the moon, the LOD (length of day) and obliquity of the spin axis of the earth. Our previous study suggested that the variation of LOD up to 600 million years before present estimated by paleontological studies is explained by temporal variation of the ocean continent distribution (Abe et al.,1997). In this study, we paid attention to discriminate how the continental distribution before 500 million years ago affects evaluation of the evolution process, using the continental distribution at 540 million years ago and 700-750 million years ago referred from Maruyama et al. (1997). After making investigations replacing the continental models used in the previous paper, it was suggested the results did not suffer so serious from ambiguity of continent models before about 1.5 billion yeas ago. This point leads us to understand that the small effect of the variation of continent models around these eras comes from the fact that the tidal frequency was remarkably far from the eigen-frequency of tidal response of the oceans. This also suggests that the earlier stage of the earth-moon system, than about 1.5 billion years ago, was possibly governed by mostly small and constant tidal response of the oceans and the comparable or larger effect of tides of the solid earth. Assuming the surface of the earth covered by whole ocean before 2.5 billion years ago, the time when earth-moon distance was very short is around 4.5 billion years ago and we can make almost clear the whole history of the earth-moon dynamical system due to tide after the moon was generated.","PeriodicalId":39875,"journal":{"name":"Journal of the Geodetic Society of Japan","volume":"47 1","pages":"514-520"},"PeriodicalIF":0.0,"publicationDate":"2001-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64262921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10