Climate change inferred from borehole temperatures
نویسندگان
چکیده
منابع مشابه
Mid-Latitude (30◦–60◦ N) climatic warming inferred by combining borehole temperatures with surface air temperatures
We construct a mid-latitude (30–60 N) reduced temperature-depth profile from a global borehole temperature database compiled for climate reconstruction. This reduced temperature profile is interpreted in terms of past surface ground temperature change and indicates warming on the order of 1C over the past 100 to 200 years. The combination of an initial temperature (the primary free parameter) w...
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We have employed a few-parameter estimation (FPE) technique to derive information on past surface temperature variations from present-day borehole temperatures. Synthetic experiments show that the FPE t•hnique can separate reasonably well information on century-long trends of surface temperature change from borehole temperatures within a .wide range of noise levels. The technique also allows a ...
متن کاملSimulation 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 کاملWater - vapor climate feedback inferred from climate fluctuations , 2003 – 2008
][1] Between 2003 and 2008, the global-average surface temperature of the Earth varied by 0.6 C. We analyze here the response of tropospheric water vapor to these variations. Height-resolved measurements of specific humidity (q) and relative humidity (RH) are obtained from NASA’s satelliteborne Atmospheric Infrared Sounder (AIRS). Over most of the troposphere, q increased with increasing global...
متن کاملClimate change record in subsurface temperatures: A global perspective
Analyses of underground temperature measurements from 358 boreholes in eastern North America, central Europe, southern Africa, and Australia indicate that, in the 20th century, the average surface temperature of Earth has increased by about 0.5 degreesC and that the 20th century has been the warmest of the past five centuries. The subsurface temperatures also indicate that Earth's mean surface ...
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ژورنال
عنوان ژورنال: Global and Planetary Change
سال: 1993
ISSN: 0921-8181
DOI: 10.1016/0921-8181(93)90048-s