Climate from borehole data: Energy fluxes and temperatures since 1500

Details Climate from borehole data: Energy fluxes and temperatures since 1500 Climate from borehole data: Energy fluxes and temperatures since 1500

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29w..26b&link_type=abstract

Geophysical Research Letters, Volume 29, Issue 23, pp. 26-1, CiteID 2111, DOI 10.1029/2002GL015702

Physics

Geophysics

18

Global Change: Solid Earth, Global Change: Climate Dynamics (3309), Meteorology And Atmospheric Dynamics: Paleoclimatology, Mathematical Geophysics: Inverse Theory

Scientific paper

Variations in the Earth's surface energy balance are recorded in the ground as perturbations of the subsurface thermal regime. Here I apply singular value decomposition (SVD) inversion methods to 826 temperature-depth profiles distributed world wide, in order to reconstruct ground surface temperature histories (GSTH) and surface heat flux histories (SHFH) from the temperature and heat flux anomalies detected in the shallow subsurface. Inversions yielded a mean ground surface temperature and surface heat flux histories for the Earth's continents for the last 500 years. Results indicate that the global average ground temperature and ground heat flux have increased an average of 0.45°K and 18.0 mWm2 respectively over the last 200 years, and 0.9°K in the last five centuries.

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