Mission results from the first GEOSTAR observatory (Adriatic Sea, 1998)
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- Beranzoli Laura
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Braun Thomas
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Calcara Massimo
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Casale Paolo
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Santis Angelo De
- Istituto Nazionale di Geofisica e Vulcanologia (INGV) Università “G. D'Annunzio”
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- D'Anna Giuseppe
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Mauro Domenico Di
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Etiope Giuseppe
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Favali Paolo
- Istituto Nazionale di Geofisica e Vulcanologia (INGV) Università “G. D'Annunzio”
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- Fuda Jean-Luc
- Laboratoire d'Océanographie et de Biogeochemie-CNRS
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- Frugoni Francesco
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Gamberi Fabiano
- Istituto per la Geologia Marina-CNR
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- Marani Michael
- Istituto per la Geologia Marina-CNR
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- Millot Claude
- Laboratoire d'Océanographie et de Biogeochemie-CNRS
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- Montuori Caterina
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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- Smriglio Giuseppe
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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説明
We assess the first mission of the GEOSTAR (GEophysical and Oceanographic STation for Abyssal Research) deep-sea multidisciplinary observatory for its technical capacity, performance and quality of recorded data. The functioning of the system was verified by analyzing oceanographic, seismological and geomagnetic measurements. Despite the mission's short duration (21 days), its data demonstrated the observatory's technological reliability and scientific value. After analyzing the oceanographic data, we found two different regimes of seawater circulation and a sharp and deepening pycnocline, linked to a down-welling phenomenon. The reliability of the magnetic and seismological measurements was evaluated by comparison with those made using on-land sensors. Such comparison of magnetic signals recorded by permanent land geomagnetic stations and GEOSTAR during a “quiet”day and one with a magnetic storm confirmed the correct functioning of the sensor and allowed us to estimate the seafloor observatory's orientation. The magnitudes of regional seismic events recorded by our GEOSTAR seismometer agreed with those computed from land stations. GEOSTAR has thus proven itself reliable for integrating other deep-sea observation systems, such as modular observatories, arrays, and instrumented submarine cables.
収録刊行物
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- Earth, Planets and Space
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Earth, Planets and Space 55 (7), 361-373, 2003
地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会
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詳細情報 詳細情報について
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- CRID
- 1390282681490535296
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- NII論文ID
- 10011769144
- 130003956339
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- NII書誌ID
- AA11211921
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- ISSN
- 18805981
- 13438832
- http://id.crossref.org/issn/13438832
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- NDL書誌ID
- 6686678
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- 本文言語コード
- en
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- JaLC
- NDL
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