Ellen Clarke

Ellen Clarke

Geomagnetism scientist
BGS Edinburgh

Ellen Clarke’s Biography

  • 2003 : Leader of the BGS real time geomagnetic services projects
  •  1997 : Management of geomagnetic observatory data processing
  •  1995 : Development of the application of geomagnetism for directional drilling
  •  1994 –1998 : BSc Open University, Subjects in Physics, Applied Mathematics and Earth Sciences
  •  1993 : Space weather research and development of the BGS space weather services
  •  1990 –1993 : HND Edinburgh Napier University, Mathematics, Operational Research and Statistics
  •  1988 : Geomagnetic observatory data processing and analysis, BGS, Geomagnetism team

Research interests

  • Applications of geomagnetic and space weather science
  • Geomagnetism
  • Historical data rescue and long-term trends in geomagnetic data
  • Space Weather

Current projects and collaborations

  • Analysis of the aa index series – an IAGA (V.DAT working group) activity
  • Delivery of quasi-absolute observatory data in near real time
  • Digitisation of analogue records from historical UK magnetic observatories
  • Production of indices from Port Stanley and Ascension Island BGS observatories
  • Project leader for Interpolation In-Field Referencing – a geomagnetism application for directional drilling
  • Carrington Solar Flare of Sept 1859 – analysis using worldwide geomagnetic records


  • CLILVERD M A, CLARKE E, ULICH T, RISHBETH H and JARVIS M J (2006) Predicting Solar Cycle 24 and beyond, AGU Space Weather4, S09005
  • CLILVERD M A, CLARKE E, ULICH T, LINTHE J and RISHBETH H (2005) Reconstructing the long-term aa index. J. Geophys. Res. 110, A07205
  • REAY S J, ALLEN W, BAILLIE O, BOWE J, CLARKE E, LESUR V and MACMILLAN S (2005) Space weather effects on drilling accuracy in the North Sea, Annales Geophysicae23, 3081-3088
  • THOMSON A W P, McKAY A J, CLARKE E and REAY S (2005) Surface Electric Fields and Geomagnetically Induced Currents in the Scottish Power Grid during the 30th October 2003 Geomagnetic Storm, AGU Space Weather 3, S11002
  • CLILVERD M A, CLILVERD E, RISHBETH H, CLARK T D G, and ULICH T (2003) Solar Activity Levels in 2100. Astronomy and Geophysics, 44, 5.20.
  • RISHBETH M A, CLARK T D G, CLARKE E, RISHBETH H and ULICH T (2002) The causes of long-term change in the aa index. J. Geophys. Res. 107, A12, 1441
  • CLARKE E, (2001) Real Time Monitoring of Global Magnetic Activity: The Apest Index.  ESA Workshop on Space Weather. ESTEC, Noordwijk, Netherlands, 14th – 16th December 2001.

Published outputs
NERC Open Research Archive — Ellen Clarke


  • Geomagnetic observatory data processing and analysis
  • Project and people management
  • Computer programming (FORTRAN, UNIX shell scripts) for data processing and scientific research

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