Physics
Scientific paper
Apr 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3107211s&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 7, CiteID L07211
Physics
12
Hydrology: Frozen Ground, Hydrology: Groundwater Hydrology, Global Change: Climate Dynamics (3309), Tectonophysics: Heat Generation And Transport
Scientific paper
The mean ground temperature as low as -10°C and the existence of more than 500 m thick permafrost during the last glacial are apparent from the analysis of deep borehole temperature profiles in north-eastern Poland. The largest thickness of the permafrost and its survival deep into the Holocene was restricted to a region known for its low terrestrial heat flow, where the negative temperature gradient is observed in the uppermost 400 m. We have shown that the profiles are consistent with warming from the glacial mean of -10°C to the Holocene mean of +7°C 14 ka ago and to +8°C in the last 150 years.
Majorowicz Jacek
Šafanda Jan
Szewczyk Jan
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