523b26b9-570f-0506-e063-3050940a96bb English nonGeographicDataset non geographic dataset British Geological Survey +44 131 667 1000 The Lyell Centre, Research Avenue South EDINBURGH LOTHIAN EH14 4AP United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-06-25 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13608711 2024 High frequency magnetic field induction coil data from Eskdalemuir Observatory, UK 2024 creation http://data.bgs.ac.uk/id/dataHolding/13608711 2023 data consists of high frequency (100 Hz) data from two horizontal induction coils measuring the Earth's magnetic field at the Eskdalemuir Observatory in the United Kingdom (Location in Geographic Coordinates: 55.314° N 356.794° E and Elevation: 245m above mean sea level). Enquiries British Geological Survey 0115 936 3142 0115 936 3276 The Lyell Centre, Research Avenue South EDINBURGH LOTHIAN EH14 4AP United Kingdom enquiries@bgs.ac.uk distributor Enquiries British Geological Survey 0115 936 3142 0115 936 3276 The Lyell Centre, Research Avenue South EDINBURGH LOTHIAN EH14 4AP United Kingdom enquiries@bgs.ac.uk pointOfContact notPlanned https://resources.bgs.ac.uk/images/geonetworkThumbs/523b26b9-570f-0506-e063-3050940a96bb.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Ionosphere Magnetic fields BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data data.gov.uk (non-INSPIRE) Citable Data dataCentre NERC_DDC otherRestrictions licenceOGL Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" otherRestrictions The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. 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Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" English geoscientificInformation 2024-08-08 2024-12-31 ASCII text witheld Enquiries British Geological Survey 0115 936 3142 0115 936 3276 The Lyell Centre, Research Avenue South EDINBURGH LOTHIAN EH14 4AP United Kingdom enquiries@bgs.ac.uk distributor https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item192215 WWW:DOWNLOAD-1.0-http--download Data download https://doi.org/10.5285/1841cdce-ddf3-43e1-b6d1-bee4826f6412 WWW:LINK-1.0-http--related Citation Information - Digital Object Identifier (DOI) British Geological Survey. (2026). 2024 High frequency magnetic field induction coil data from Eskdalemuir Observatory, UK. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/1841cdce-ddf3-43e1-b6d1-bee4826f6412 information nonGeographicDataset non geographic dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false An induction coil (or high frequency magnetometer) consists of two coils of insulated copper wire wound around an iron core. Induction coils permit us to measure the very rapid changes of the magnetic field at frequencies between 0.1 and 1000 times per second. This part of the electromagnetic spectrum is called the Extremely Low Frequency (ELF) range. In June 2012, the BGS Geomagnetism team installed two high frequency (100 Hz) induction coil magnetometers at Eskdalemuir Geophysical Observatory in the Scottish Borders as a long term experiment to see what geophysical phenomena could be measured. The coils were installed on the Eskdalemuir observatory site, an electromagnetically quiet region of the UK. The coils were placed under a protective wooden covering in an empty field and are linked to the internet via a computer system in the seismic vault about 100 metres away. A small breakout box and digitiser lie close to the coils. The data from the induction coils are returned on a daily basis to BGS Edinburgh.