Temperature measurements in the subsurface contribute to many areas of earth sciences on a wide range of temporal and spatial scales. This highly interdisciplinary session provides space for all topics relevant to the investigation of heat transport in(to) the subsurface. It is open for all contributions on the thermal signatures of fluid flow, paleoclimate, and other relevant processes.

Possible themes for this session would be related to the discrimination, and quantitative description of the different processes involved in subsurface heat transport, as the use of subsurface temperature measurements in soil sciences, hydrology, permafrost an glacier studies, and finally heat flow studies. Both, experimental as well as theoretical/numerical studies will be appreciated. Particularly welcome are investigations related to (1) past and present surface temperature variations and environmental changes, and their interaction with the subsurface temperature field; (2) investigations into the mechanism of ground-air temperature coupling including effects of precipitation, soil moisture, snow cover, freeze/thaw cycling; (3) ground surface temperature reconstructions from borehole temperature profiles; (4) the possible role of borehole temperatures for the numerical simulation of past climate, and the validation of its models at decadal and longer scales.