Soil temperatures at Armagh Observatory, Northern Ireland, from 1904 to 2002
Article first published online: 13 FEB 2006
Copyright © 2006 Royal Meteorological Society
International Journal of Climatology
Volume 26, Issue 8, pages 1075–1089, 30 June 2006
How to Cite
García-Suárez, A. M. and Butler, C. J. (2006), Soil temperatures at Armagh Observatory, Northern Ireland, from 1904 to 2002. Int. J. Climatol., 26: 1075–1089. doi: 10.1002/joc.1294
- Issue published online: 27 MAY 2006
- Article first published online: 13 FEB 2006
- Manuscript Accepted: 2 NOV 2005
- Manuscript Revised: 29 OCT 2005
- Manuscript Received: 25 JUL 2005
- Heritage Lottery Fund
- Irish Soldiers and Sailors Land Trust
- Department for Culture Arts and Leisure for Northern Ireland
- Northern Ireland;
- climate change;
- soil temperature;
- soil moisture;
- earth temperature;
- Palmer drought severity index
Soil temperatures at 30 and 100-cm depth from Armagh Observatory covering the period 1904–2002 are presented. The series has been corrected for changes in depth and location of the thermometers and has been compared with data from two other sites in Ireland: Birr and Valentia.
Linear regressions of the soil temperatures over the past century for the three sites have positive slopes in all seasons which vary from 0.04 to 0.25 °C/decade, depending on the season, depth and location. There appear to be some geographical differences, with relatively shallow trends in winter in Armagh and Birr and steeper trends in Valentia.
Soil temperature variations at the Armagh Observatory are intimately related to changes in the mean air temperature but are also influenced by changes in precipitation. We show that winter soil temperatures at Armagh can be successfully reconstructed from air temperature records. Copyright © 2006 Royal Meteorological Society.