Cool tropical temperatures shift the global δ 18 O‐T relationship: An explanation for the ice core δ 18 O ‐ borehole thermometry conflict? | Zendy

Boyle Edward A. | Zendy

Premium

Cool tropical temperatures shift the global δ 18 O‐T relationship: An explanation for the ice core δ 18 O ‐ borehole thermometry conflict?

Author(s) -

Boyle Edward A.

Publication year - 1997

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/97gl00081

Subject(s) - ice core , holocene , borehole , climatology , geology , last glacial maximum , atmospheric sciences , paleoclimatology , climate change , oceanography , paleontology

The discrepancy between central Greenland borehole temperatures and the isotopic composition of Last Glacial Maximum ice can be explained by a shift in the δ 18 O‐T relationship for the hydrological cycle linked to cooler tropical temperatures. This concept is illustrated using a simple Rayleigh distillation model. An estimate for α=Δδ 18 O/ΔT (LGM‐Holocene) of −0.37 ‰/°C is determined with a simple graphical technique.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research