MOIST
Multidisciplinary Oceanic Information SysTem

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NEAREST 1 - Gravimeter - RAW dataset

Metadata

Instrument: IFSI (INAF) Prototype #2
Investigator: Mariagrazia De Caro (INGV)
Project: NEAREST
Observatory: GEOSTAR

Citation: Marinaro, G. (2007). Gravimeter dataset (IFSI (INAF) Prototype #2 @ 1 Hz) from INGV/GEOSTAR seafloor platform during NEAREST project in Iberian Margin site (Gulf of Cadiz), part of EMSO network [Data set]. Istituto Nazionale di Geofisica e Vulcanologia (INGV). https://doi.org/10.13127/MD/8EBEBD85-8730-4B28-B160-9B3B2413825F

Abstract: A prototype of gravity meter built at the Istituto di Fisica dello Spazio Interplanetario (IFSI) of the National Institute of Astro-Physics (INAF) was installed on the GEOSTAR deep-sea multidisciplinary observatory in the Gulf of Cadiz (Portugal). The dataset contains relative values of gravity acceleration measured with sensitivity close to 10^-9 g/sqrt(Hz) in the range from 10^-5 to about 1 Hz.

Purpose: The instrument performs measurements of the Earth gravity acceleration due to low ground movements (tides) and fast ground movements (seismic wave propagation).

Quality of data: The gravimeter acquired from August 27, 2007 to August 15, 2008 with a break of acquisition from 18/07/2008 to 15/08/2008 and 12 hours among 17-18/10/2007. The data are stored in a total of 326 daily binary files (~220 MB). The gravity meter has successfully recorded different teleseismic events with an high S/N ratio.