Climate change inferred from borehole temperatures
- Academy of Sciences of the Czech Republic, Prague (Czech Republic). Geophysical Inst.
Any climate change is accompanied by corresponding change of the mean annual air temperature, which consequently affects the temperature of the earth`s surface. The temperature changes on the surface propagate into the subsurface with the amplitude attenuation and time delay that increase with depth. Ground surface temperature (GST) history, reflecting the past climate history, can thus be evaluated by analyzing its excursions left on the present-day temperature-depth T(z) distribution measured by precise temperature logging in the boreholes. The authors present several synthetic T(z) profiles to demonstrate the expected climate signatures at depth. Examples of extracted climate recollections from holes in various locations in Europe and North America are discussed. To improve the fidelity of the inferred GST data several techniques were proposed.
- OSTI ID:
- 470967
- Report Number(s):
- CONF-960420-; ISBN 0-884736-02-5; TRN: IM9722%%90
- Resource Relation:
- Conference: 7. global warming international conference and exposition, Vienna (Austria), 1-3 Apr 1996; Other Information: PBD: 1996; Related Information: Is Part Of The 7. global warming international conference and expo: Abstracts; PB: 154 p.
- Country of Publication:
- United States
- Language:
- English
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