Abstract
We calibrate the δ18O paleothermometer for central Greenland using borehole temperatures, a thermal model forced by a measured δ18O record and a formal inverse technique. The calibration is determined mostly by temperature fluctuations of the last several centuries, including the Little Ice Age. Results are generally insensitive to model variables, including initial condition, basal boundary condition, parameterization of snow thermal properties, ice thickness and likely errors in temperature and isotope measurements. Results of this borehole calibration also seem to be in agreement with modern spatial gradients of δ18O and temperature. -from Authors
Original language | English (US) |
---|---|
Pages (from-to) | 341-349 |
Number of pages | 9 |
Journal | Journal of Glaciology |
Volume | 40 |
Issue number | 135 |
DOIs | |
State | Published - 1994 |
All Science Journal Classification (ASJC) codes
- Earth-Surface Processes