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| Titel |
Resolving issues concerning Eskdalemuir geomagnetic hourly values |
| VerfasserIn |
S. Macmillan, E. Clarke |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 29, no. 2 ; Nr. 29, no. 2 (2011-02-08), S.283-288 |
| Datensatznummer |
250016967
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| Publikation (Nr.) |
 copernicus.org/angeo-29-283-2011.pdf |
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| Zusammenfassung |
| The hourly values of the geomagnetic field from 1911 to 1931 derived from
measurements made at Eskdalemuir observatory in the UK, and available online
from the World Data Centre for Geomagnetism at http://www.wdc.bgs.ac.uk/, have now been corrected. Previously they were
2-point averaged and transformed from the original north, east and vertical
down values in the tables in the observatory yearbooks. This paper documents
the course of events from discovering the post-processing done to the data
to the final resolution of the problem. As it was through the development of
a new index, the Inter-Hour Variability index, that this post-processing
came to light, we provide a revised series of this index for Eskdalemuir and
compare it with that from another European observatory. Conclusions of
studies concerning long-term magnetic field variability and inferred solar
variability, whilst not necessarily consistent with one another, are not
obviously invalidated by the incorrect hourly values from Eskdalemuir. This
series of events illustrates the challenges that lie ahead in removing any
remaining errors and inconsistencies in the data holdings of different World
Data Centres. |
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