Ground Surface Temperature Histories From Shallow Boreholes in Northern Germany (original) (raw)

Abstract

Analysis of temperature-depth (T-z) profiles from seven boreholes in northern Germany provided new borehole paleoclimate data from a previously unsampled region of Europe and offered a test of a widely used temperature-depth inversion scheme. Ground surface temperature histories (GSTH) determined by inversion of T-z profiles from the seven boreholes indicate stable temperatures from 1600 until the 1890's followed by consistent warming to the present. Four sites at Wulsdorf show warming from 1890 to present of 0.22, 0.23, 0.43, and 0.69 degrees and three sites at Bexhovede show warming of 0.58, 1.01 and 1.57 degrees. The boreholes were drilled in Quaternary deposits with till, silt, sand and gravel in a glacial spillway as well as Pliocene/Miocene sand and silt in the North German Basin. All of the boreholes are relatively shallow, 100 to 145 meters deep, but the thermal diffusivity of the silt and sand is low 0.5-0.9 * 10-6 m2 s-1 and the temperature information contained in the...

Will Gosnold hasn't uploaded this paper.

Let Will know you want this paper to be uploaded.

Ask for this paper to be uploaded.