SN1 2019 - Vector Magnetometer dataset
Fluxgate Prototype #1
Angelo De Santis (INGV)
Citation: De Santis, Angelo. (2019). Vector Magnetometer dataset (Fluxgate #1 @ 1 sample / 4 sec) from INGV/NEMO-SN1 seafloor platform during EMSO-MIUR project in Western Ionian Sea site (East Sicily), part of EMSO network.
Abstract: This sensor provides the three components of the magnetic induction vector in the directions N-S, E-W and Z (vertical). It is a fluxgate prototype developed at INGV laboratories equipped with an inertial platform for levelling control. It provides continuous seafloor magnetic data which are important for two main reasons: a) they extend the magnetic observations from land to the seafloor, improving the spatial distribution in the Italian territory; b) these data are important for the study of short and long magnetic field time variations. The variational data allow us to estimate the resistivity structure underneath the area of observations and possibly to detect some magnetic variations related to some geo-hazards, such as earthquakes and tsunamis.
Purpose: The main aim is the continuous and almost real-time measurement of the three components of the Earth’s magnetic field in a very peculiar environment which in fact has a favorable impact on the quality of the measurements: first, the temperature is more stable at the sea bottom, especially in deep sea sites, so the instrumental drift due to temperature variations is absent or negligible. Second, the water column acts as a natural "shield" to the highest frequencies of the iono- and magnetosphere inducing fields.
Quality of data:
|period||October 12, 2019 - on going|
|coordinates||37.54765 N, 15.3975 E (WGS84)|
|sampling rate||1 sample / 4 sec|
|platform type||Fixed benthic node|
|size||about 600 MB per year|
|export formats||NetCDF (CF), CSV, JSON|
|license||Creative Commons Attribution 4.0 International License (CC BY 4.0)|
|dataset progress||IN WORK|
|science keywords||OCEANS > MARINE GEOPHYSICS > MARINE MAGNETICS
|xml||ATOM - DIF - KML - OAI DublinCore - PANGAEA DublinCore - OpenSearch - RDF - SensorML|
|dissemination||GENESI-DEC - NASA GCMD - EMSO Data Portal - ESONET Data Portal - ESONET Sensor|