Quantifying the Rhythm of Ice Accumulation in East Antarctica With Varying Temperature

Authors

• Radhendushka Srivastava, Indian Institute of Technology Bombay
• Debasis Sengupta, Indian Statistical Institute, Kolkata
• Prosenjit Ghosh, Indian Institute of Science

Article Type

Research Article

Publication Title

Terra Nova

Abstract

We present evidence of a strong linkage between temperature and the apparent rate of accumulation of ice at three sites in East Antarctica over the past 800 kiloyears. The conclusions emerge from statistical analysis of an empirical model based on ice core data. The model permits the apparent accumulation rate (AAR) to be tempered by an unspecified thinning process of ice over the ages. It is robust to misspecification of the age scale and does not require the accumulation rate to be delineated from thinning. Records show a 5%–8% increase in the AAR for 1°C rise in temperature. This is consistent with the expected rise in moisture absorption capacity of the atmosphere with a rise in temperature.

First Page

157

Last Page

163

DOI

10.1111/ter.12762

Publication Date

6-1-2025

Recommended Citation

Srivastava, Radhendushka; Sengupta, Debasis; and Ghosh, Prosenjit, "Quantifying the Rhythm of Ice Accumulation in East Antarctica With Varying Temperature" (2025). Journal Articles. 5542.
https://digitalcommons.isical.ac.in/journal-articles/5542