Selection of borehole temperature depth profiles for regional climate reconstructions
نویسندگان
چکیده
منابع مشابه
Simulation of air and ground temperatures in PMIP3/CMIP5 last millennium simulations: implications for climate reconstructions from borehole temperature profiles
For climatemodels to simulate the continental energy storage of the Earth’s energy budget theymust capture the processes that partition energy across the land-atmosphere boundary.We evaluate herein the thermal consequences of these processes as simulated bymodels in the third phase of the paleoclimatemodelling intercomparison project and the fifth phase of the coupledmodel intercomparison proje...
متن کاملBorehole climate reconstructions: Spatial structure and hemispheric averages
[1] Ground surface temperature (GST) reconstructions determined from temperature profiles measured in terrestrial boreholes, when averaged over the Northern Hemisphere, estimate a surface warming of 1 K during the interval AD 1500– 2000. Other traditional proxy-based estimates suggest less warming during the same interval. Mann et al. [2003a] have raised two issues with regard to borehole-based...
متن کاملGround vs. surface air temperature trends: Implications for borehole surface temperature reconstructions
[1] We have analyzed the relationship between surface air temperature (SAT), ground surface temperature (GST), and snow cover (SNC) over the terrestrial Northern Hemisphere based on general circulation model (GCM) simulations using GISS modelE forced with the observed SST and radiative forcing changes from 1951–1998. While SAT is the dominant influence on GST during the warm-season, it explains...
متن کاملPaleoclimatic reconstructions in western Canada from borehole temperature logs: surface air temperature forcing and groundwater flow
Modelling of surface temperature change effect on temperature vs. depth and temperature-depth logs in Western Canada Sedimentary Basin show that SAT (surface air temperature) forcing is the main driving factor for the underground temperature changes diffusing with depth. It supports the validity of the basic hypothesis of borehole temperature paleoclimatology, namely that the ground surface tem...
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ژورنال
عنوان ژورنال: Climate of the Past
سال: 2007
ISSN: 1814-9332
DOI: 10.5194/cp-3-297-2007