Date (Creation)

2021-12-14

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607875

Maintenance and update frequency

notApplicable notApplicable

GEMET - INSPIRE themes, version 1.0

• Geology

BGS Thesaurus of Geosciences

• Geomagnetic stations

dataCentre

• NGDC Deposited Data
• Citable Data

Keywords

• NERC_DDC

Access constraints

otherRestrictions Other restrictions

Other constraints

licenceOGL

Other constraints

Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Use constraints

otherRestrictions Other restrictions

Other constraints

The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

Other constraints

Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Metadata language

EnglishEnglish

Topic category

• Geoscientific information

Begin date

1946-03-27

End date

1972-08-07

Distribution format

• IAGA-2002 (Data exchange format) ()

OnLine resource

Data ( WWW:DOWNLOAD-1.0-http--download )

OnLine resource

Citation Information - Digital Object Identifier (DOI) ( WWW:LINK-1.0-http--related )

Beggan, C.D., Eaton, E.M., Williamson, J., Maume, E., Humphries, T.S., Clarke, E. (2021). Digitised magnetogram data from three UK observatories. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/2d39fb6c-debb-408d-8abf-0298eebbf06d

Hierarchy level

nonGeographicDataset Non geographic dataset

Other

non geographic dataset

Statement

Over the past two centuries, observatories measured the daily field variations using light-sensitive photographic paper to produce analogue magnetograms. Around 350,000 magnetograms have been digitally photographed at high-resolution. However, converting the traces to digital values is difficult and time consuming as the magnetograms can have over-lapping lines, low quality recordings and obscure metadata for conversion to SI units. We digitised the traces from two large geomagnetic storms and cross-checked the final digitised values with the recorded hourly mean values from observatory years books.

File identifier

d3400581-df84-3af1-e054-002128a47908 XML

Metadata language

EnglishEnglish

Hierarchy level

nonGeographicDataset Non geographic dataset

Hierarchy level name

non geographic dataset

Date stamp

2026-05-03

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13607875