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Изучение вариаций положения центра масс Земли с применением данных лазерной локации ИСЗ и данных межспутниковых измерений проекта GRACE

Studying of Earth’s center of mass variations with Satellite Laser Ranging and GRACE project data

Изучение вариаций положения центра масс Земли с применением данных лазерной локации ИСЗ и данных межспутниковых измерений проекта GRACE

Abstract

В статье представлены результаты определения движения центра масс Земли (геоцентра), полученные из обработки лазерных наблюдений геодезических ИСЗ Lageos-1, Lageos-2, Stella, Starlette, AJISAI на интервале времени 1993.0-2016.0 и из обработки результатов проекта GRACE на интервале времени 2003.0-2016.0. Обработка выполнялась с применением разработанного в ИНАСАН программного комплекса ГеоИС. При обработке лазерных наблюдений использовался динамический метод, т.е. определение координат геоцентра через уточнение соответствующих коэффициентов разложения гравитационного поля Земли в ряд по сферическим функциям, при обработке результатов проекта GRACE - метод анализа поверхностных нагрузок. Полученные временные ряды были проанализированы с применением программы FAMOUS (CNES, France) для выявления периодических изменений. Выполнено сравнение с результатами, полученными научными коллективами за рубежом.

This paper presents results of determination of Earth’s center of mass motions (geocenter) obtained from processing Satellite Laser Ranging data using Lageos-1, Lageos-2, Stella, Starlette, AJISAI satellites (on the time span 1993.0-2016.0) and from processing GRACE project results (on the time span 2003.0-2016.0). GeoIS software developed at INASAN was used for data processing. Dynamic method was used for geocenter motion determination while processing SLR data. For GRACE data we used analyses of surface load data. FAMOUS software (CNES, France) was applied to the obtained results to determine periodical effects in geocenter motion. Results were compared with results of foreign scientific teams.

№2(2) (2018)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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