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INSTALLATION AND START-UP OF A NEW ONE-SECOND VARIOMETER IN SAN PABLO DE LOS MONTES GEOMAGNETIC OBSERVATORY (SPAIN) |
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Gracia, F., Tordesillas, J.M., Aguado, J. |
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Instituto Geográfico Nacional - Spain |
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San Pablo de los Montes Geophysical Observatory (SPT) is used as reference for geomagnetic studies that IGN carry out in the Iberian Peninsula and is part of the Intermagnet geomagnetic worldwide network. This observatory have available a pair of variometers FGE and Geomag that obtain H, D, Z components, in addition to magnetometers to get total field F, providing one minute data in real time. During 2017, and following the requirements of Intermagnet to receive one-second data from the observatories, we have proceed to the installation, orientation and start-up of a new variometer FGE. We have buried a brand new installation of wires both for data and 12 V power. In one of the spaces inside the variometers vault, the new variometer has been installed, oriented and calibrated. It has been also placed a crystal dome to cover and protect the variometer against dust and possible temperature and humidity variations. The new variometer has a 24 bits A/D converter ObsDAQ and a data collection platform MAGREC-4B, with an acquisition software for monitoring and produce one second data in IAGA-2002 format. We are going to be doing intercomparisons between variometers in order to study the goodness of the new installation. Once the new variometer works stable and without faults it will be considered as primary. So, from this moment on we plan to adapt the actual FGE to one-second requirements to be considered as backup. |
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Observatories |
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poster |
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