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Items where NERC Author is "Clarke, Ellen"

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Number of items: 47.

Publication - Article

Beggan, Ciaran; Macmillan, Susan; Clarke, Ellen; Hamilton, Brian. 2014 Improving models of the Earth’s magnetic field for directional drilling applications. First Break, 32 (3). 53-60.

Clarke, Ellen; Baillie, Orsi; Reay, Sarah J.; Turbitt, Chris W.. 2013 A method for the near real-time production of quasi-definitive magnetic observatory data [in special issue: Swarm Science Data Processing and Products — the Swarm Satellite Constellation Application and Research Facility, SCARF] Earth, Planets and Space, 65 (11). 1363-1374. 10.5047/eps.2013.10.001

Reay, S.J.; Clarke, E.; Dawson, E.; Macmillan, S.. 2013 Operations of the World Data Centre for Geomagnetism, Edinburgh [in special issue: Proceedings of the 1st WDS Conference in Kyoto 2011 ] Data Science Journal, 12. WDS47-WDS51. 10.2481/dsj.WDS-005

Reay, S.J.; Clarke, E.; Hamilton, B.. 2011 First steps towards K Indices from South Atlantic Observatories : Port Stanley Observatory. Data Science Journal, 10. IAGA117-IAGA129. 10.2481/dsj.IAGA-19

Turbitt, C.; Baillie, O.; Kerridge, D.; Clarke, E.. 2011 An investigation into techniques for isolating noise in observatory data. Data Science Journal, 10. IAGA174-IAGA182. 10.2481/dsj.IAGA-25

Macmillan, S.; Clarke, E.. 2011 Resolving issues concerning Eskdalemuir geomagnetic hourly values. Annales Geophysicae, 29. 283-288. 10.5194/angeo-29-283-2011

Clilverd, Mark A.; Rodger, Craig J.; Dietrich, Sarah; Raita, Tero; Ulich, Thomas; Clarke, Ellen; Thomson, Alan W.P.; Kavanagh, Andrew J.. 2010 High-latitude geomagnetically induced current events observed on very low frequency radio wave receiver systems. Radio Science, 45 (2), RS2006. 10.1029/2009RS004215

Clilverd, Mark; Clarke, Ellen; Ulich, T; Rishbeth, H; Jarvis, Martin. 2006 Predicting Solar Cycle 24 and beyond. Space Weather, 4. S09005. 10.1029/2005SW000207

Reay, S.J.; Allen, W.; Baillie, O.; Bowe, J.; Clarke, E.; Lesur, V.; Macmillan, S.. 2005 Space weather effects on drilling accuracy in the North Sea. Annales Geophysicae, 23 (9). 3081-3088.

Kerridge, David; Macmillan, Susan; Turbitt, Christopher; Clarke, Ellen. 2005 Navigating the subsurface. Earthwise, 22. 28-29.

Clilverd, Mark A.; Clarke, Ellen; Ulich, Thomas; Linthe, Joachim; Rishbeth, Henry. 2005 Reconstructing the long-term aa index. Journal of Geophysical Research, 110 (A7), A07205. 7, pp. 10.1029/2004JA010762

Thomson, Alan W.P.; McKay, Allan J.; Clarke, Ellen; Reay, Sarah J.. 2005 Surface electric fields and geomagnetically induced currents in the Scottish Power grid during the 30 October 2003 geomagnetic storm. Space Weather, 3, S11002. 14, pp. 10.1029/2005SW000156

Thomson, A.W.P.; Mackay, A.; Clarke, E.; Reay, S.. 2005 Surface electric fields and geomagnetically induced currents in the Scottish Power grid during the 30th October 2003 geomagnetic storm. Space Weather - The International Journal of Research and Applications, 3 (11), S11002.

Clilverd, Mark A.; Clarke, Ellen; Rishbeth, Henry; Clark, Toby D.G.; Ulich, Thomas. 2003 Solar activity levels in 2100. Astronomy and Geophysics, 44 (5). 20-22. 10.1046/j.1468-4004.2003.44520.x

Beamish, D.; Clark, T.D.G.; Clarke, E.; Thomson, A.W.P.. 2002 Geomagnetically induced currents in the UK: geomagnetic variations and surface electric fields. Journal of Atmospheric and Solar-Terrestrial Physics, 64 (16). 1779-1792. 10.1016/S1364-6826(02)00127-X

Clilverd, Mark A; Clark, Toby D.G.; Clarke, Ellen; Rishbeth, Henry; Ulich, Thomas. 2002 The causes of long-term change in the aa index. Journal of Geophysical Research, 107 (A12), SSH4. 10.1029/2001JA000501

Publication - Conference Item

Clarke, Ellen; Kelly, Gemma; Beggan, Ciaran. 2014 Recent BGS activities: digitising and modelling with historical data and telluric measurements and analysis. [Lecture] In: SEREN workshop on geomagnetically induced currents , Edinburgh, UK, 5-6 March 2014. (Unpublished)

Humphries, Thomas; Clarke, Ellen; Dawson, Ewan; Williamson, John. 2013 Carrington as a benchmark: comparisons of the September 1859 storm using newly digitised data for London. [Poster] In: European Space Weather Week 10, Antwerp, Belgium, 18-22 Nov 2013. (Unpublished)

Baillie, Orsi; Thomson, Alan; Nagy, Tamás; Dawson, Ewan; Kelly, Gemma; Wesztergom, Victor; Clarke, Ellen. 2013 Extreme value statistics applied to geoelectric activity in Europe ... a first look. [Poster] In: European Space Weather Week 10, Antwerp, Belgium, 18-22 Nov 2013. (Unpublished)

Reay, Sarah; Hamilton, Brian; Clarke, Ellen; Macmillan, Susan; Turbitt, Chris. 2012 Improving directional drilling accuracy using magnetic referencing techniques. [Poster] In: DEVEX 2012, Aberdeen, UK, 9-10 May 2012. British Geological Survey. (Unpublished)

Clarke, Ellen; Viljanen, Ari; Wintoft, Peter; Vesztergom, Viktor; Thomson, Alan; Baillie, Orsi; Reay, Sarah; Dawson, Ewan. 2011 The EURISGIC database : a tool for GIC research. [Poster] In: European Space Weather Week 8, Namur, Belguin, 28 Nov - 2 Dec. British Geological Survey. (Unpublished)

Baillie, Orsi; Clarke, Ellen; Reay, Sarah; Thomson, Alan; Turbitt, Christopher; Flower, Simon. 2011 Ingredients for a successful Space Weather service. [Poster] In: European Space Weather Week 8, Namur, Belguin, 28 Nov - 2 Dec. British Geological Survey. (Unpublished)

Macmillan, S.; Beggan, C.; Clarke, E.; Hamilton, B.; Thomson, A.; Turbitt, C.. 2011 Space weather impacts of the developing South Atlantic Anomaly. [Poster] In: RAS Specialist Meeting UK Study of the Earth’s Deep Interior, London, UK, 11 Nov 2011. (Unpublished)

Clarke, E.; Parkinson, S.; Turbitt, C.W.; Baillie, O.; Reay, S.J.; Schiermeier, P.. 2011 Jim Carrigan Observatory and directional drilling in Alaska. [Poster] In: IUGG XXV General Assembly 2011, Melbourne, Australia, 28 June - 7 July 2011. (Unpublished)

Harris, T.; Flower, S.; Swan, A.; Turbitt, C.; Clarke, E.; Bishop, N.; Shanahan, T.; Reay, S.; Baillie, O.; Macmillan, S.. 2011 South Georgia Magnetic Observatory. [Poster] In: IUGG XXV General Assembly : Earth on the Edge : Science for a Sustainable Planet, Melbourne, Australia, 28 June - 7 July 2011. (Unpublished)

Reay, Sarah; Dawson, Ewan; Macmillan, Susan; Flower, Simon; Humphries, Thomas; Clarke, Ellen. 2011 Metadata in geomagnetism : experiences of the World Data Centre for Geomagnetism, Edinburgh. [Poster] In: IUGG XXV General Assembly 2011, Melbourne, Australia, 28 June - 7 July 2011. (Unpublished)

Reay, Sarah; Clarke, Ellen; Hamilton, Brian. 2010 New K-Indices from South Atlantic Observatories : Port Stanley and Ascension Island. [Poster] In: 14th IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition and Processing, Changchun, China, 13-23 Sept 2010. (Unpublished)

Clarke, Ellen; Rodger, Craig; Clilverd, Mark; Humphries, Thomas; Baillie, Orsolya; Thomson, Alan. 2010 An estimation of the Carrington flare magnitude from solar flare effects (sfe) in the geomagnetic records. [Poster] In: RAS NAM 2010 with the UK Solar Physics & MIST Meetinsg, Glasgow, Scotland, 12-16 April 2010. (Unpublished)

Clarke, Ellen; Flower, Simon; Humphries, Thomas; Hussey, John; McIntosh, Robert; MacTaggart, Fergus; McIntyre, Brian; Owenson, Nicola; Henderson, Keith; Mann, Elizabeth; Mackenzie, Kenneth; Piper, Simon; Wilson, Louise; Gillanders, Richard; Kilpatrick, Karen. 2009 The digitisation of observatory magnetograms. [Poster] In: IAGA 11th Scientific Assembly, Sopron, Hungary, 23-30 Aug 2009. (Unpublished)

Clarke, Ellen; Clilverd, Mark; Macmillan, Susan. 2008 Geomagnetic and Solar Variability and Natural Climate Change. [Poster] In: New Advances in Geophysics 2008, Geophysics of Global Climate Change, Burlington House, London, 7-8 February 2008. (Unpublished)

Clarke, Ellen; Baillie, Orsi; Dawson, Ewan; Macmillan, Susan; Reay, Sarah; Snedden, Andrew. 2007 Corrected hourly values from Eskdalemuir observatory and the implications for studies on the long term changes in geomagnetic activity. [Poster] In: XXIV IUGG General Assembly 2007, Perugia, Italy, July 2007. (Unpublished)

Clarke, Ellen; Clilverd, Mark. 2007 Is there a need to revise the aa index? [Poster] In: XXIV IUGG General Assembly 2007, Perugia, Italy, July 2007. (Unpublished)

Clarke, Ellen; Macmillan, Susan. 2007 Geomagnetic Variability and Climate Change: Is there a link? [Poster] In: BGS NERC Climate Change Seminar, BGS Keyworth, Nottingham, 18 January 2007. (Unpublished)

Clarke, Ellen; Thomson, Alan W.P.. 2005 BINCASTS : BGS Index Nowcasts and Forecasts. [Poster] In: 2nd European Space Weather Week, Noordwijk, The Netherlands, 14-18 Nov 2005. (Unpublished)

Clarke, E.; Baillie, O.; McKay, A.J.; Reay, S.J.; Thomson, A.W.P.. 2005 Automated real time detection of solar wind shocks and consequences for the identification of SSC and SI events. [Poster] In: IAGA 2005 Scientific Assembly, Toulouse, France, 18-29 July 2005. (Unpublished)

McKay, Allan; Clarke, Ellen; Reay, Sarah; Thomson, Alan. 2005 Geomagnetically Induced Currents (GIC) in power networks as a source of electromagnetic sounding data. [Poster] In: IAGA Scientific Assembly 2005, Toulouse, France, 18-29 July 2005. (Unpublished)

Reay, Sarah; Baillie, Orsi; Bowe, Jim; Clarke, Ellen; Lesur, Vincent; Macmillan, Susan. 2004 The effect of space weather on drilling accuracy in the North Sea. [Poster] In: First European Space Weather Week 2004, Noordwijk, The Netherlands, 29 Nov-3 Dec 2004 . (Unpublished)

Thomson, Alan; McKay, Allan; Clarke, Ellen; Reay, Sarah. 2004 Project ‘SWIMIC’: a geomagnetically induced current monitoring service for the Scottish Power Grid. [Poster] In: First European Space Weather Week 2004, Noordwijk, The Netherlands, 29 Nov - 3 Dec 2004. (Unpublished)

McKay, Allan; Clarke, Ellen; Reay, Sarah; Thomson, Alan. 2004 Modelling the effects of space weather at the Earth’s surface : a UK geoelectric field model. [Poster] In: MIST/UKSP 2004, Edinburgh, UK, 29 March - 1 April 2004. (Unpublished)

Clarke, Ellen; Linthe, Hans-Joachim. 2003 Ap in real time : IUGG- Sapporo, Japan, July 2003 : session GAV.02. [Poster] In: XXIII IUGG General Assembly, Sapporo, Japan, 30 June- 11 July 2003. (Unpublished)

Reay, Sarah; Turbitt, Christopher; Flower, Simon; Riddick, John; Clarke, Ellen. 2003 Results from the BGS South Atlantic Observatories : Ascension Island and the Falkland Islands. [Poster] In: XXIII IUGG General Assembly, Sapporo, Japan, 30 June- 11 July 2003. (Unpublished)

Clarke, Ellen. 2001 Real time monitoring of global magnetic activity : the APEST index. [Poster] In: ESTEC SWW 2001, Noordwijk, The Netherlands, 17-19 December 2001. (Unpublished)

Clark, Toby; Clarke, Ellen. 2001 Space weather services for the offshore drilling industry. [Poster] In: ESTEC SWW, Noordwijk, The Netherlands, 17-19 December 2001. (Unpublished)

Clarke, Ellen; Thomson, Alan. 2001 Real-time magnetic activity indices : two examples in daily use. [Poster] In: IAGA 9th Scientific Assembly, Hanoi, Vietnam, 18-30 August 2001. (Unpublished)

Thomson, Alan; Clarke, Ellen. 2001 Geomagnetically induced currents in northern Europe during the April and July storms in 2000. [Poster] In: XXVI EGS General Assembly, Nice, France, 25-30 March 2001. (Unpublished)

Clarke, Ellen; White, Pamela. 1999 Increased demand for rapid access to UK magnetic observatory data : implications for quality control procedures. [Poster] In: XXII IUGG General Assembly, Birmingham, UK, 19-30 July 1999. (Unpublished)

Output (Electronic)

Clarke, Ellen; Baillie, Orsi; Reay, Sarah. BGS Intermagnet data 2012. [Output (Electronic)]

This list was generated on Fri Oct 31 07:11:57 2014 GMT.