Climate of the Past Discussions www.clim-past-discuss.net 1814-9340 1814-9359 1 1 2005 10.5194/cpd-1-93-2005 http://www.clim-past-discuss.net/1/93/2005/ http://www.clim-past-discuss.net/1/93/2005/cpd-1-93-2005.html http://www.clim-past-discuss.net/1/93/2005/cpd-1-93-2005.pdf 93 120 2005-08-09 Paleoclimatic reconstructions in Western Canada from subsurface temperatures: consideration of groundwater flow J. Majorowicz S. Grasby G. Ferguson J. Safanda W. Skinner Northern Geothermal, 105 Carlson Close, Edmonton, Alberta, T6R 2J8, Canada University of North Dakota, Northern Plains Climate Research Centre, Grand Forks, USA Geological Survey of Canada, Calgary, Canada Department of Earth Sciences, St. Francis Xavier University, Antigonish, Nova Scotia, Canada Geophysical Institute, Prague, Czech Republic Environment Canada, Downsview, Ontario, Canada The surface temperature forcing is responsible for the majority of the observed deviation of temperature with depth. In some cases, differences higher than the error of measurements are observed between the model and measurements. These can be an indication that other factors than surface temperature change influence subsurface temperature. Groundwater flow is one of the possible candidates.