Heat flux anomalies in Antarctica revealed from satellite magnetic data

Cathrine Fox Maule, Michael E. Purucker, Nils Olsen, Klaus Mosegaard

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The geothermal heat flux is an important factor in the dynamics of ice sheets; it affects the occurrence of subglacial lakes, the onset of ice streams, and mass losses from the ice sheet base. Because direct heat flux measurements in ice-covered regions are difficult to obtain, we developed a method that uses satellite magnetic data to estimate the heat flux underneath the Antarctic ice sheet. We found that the heat flux underneath the ice sheet varies from 40 to 185 megawatts per square meter and that areas of high heat flux coincide with known current volcanism and some areas known to have ice streams.
Original languageEnglish
JournalScience
Volume309
Issue number5733
Pages (from-to)464-467
ISSN0036-8075
DOIs
Publication statusPublished - 2005

Fingerprint

Dive into the research topics of 'Heat flux anomalies in Antarctica revealed from satellite magnetic data'. Together they form a unique fingerprint.

Cite this