HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

In-phase millennial-scale glacier changes in the tropics and North Atlantic regions during the Holocene

Abstract : Based on new and published cosmic-ray exposure chronologies, we show that glacier extent in the tropical Andes and the north Atlantic regions (TANAR) varied in-phase on millennial timescales during the Holocene, distinct from other regions. Glaciers experienced an early Holocene maximum extent, followed by a strong mid-Holocene retreat and a re-advance in the late Holocene. We further explore the potential forcing of TANAR glacier variations using transient climate simulations. Since the Atlantic Meridional Overturning Circulation (AMOC) evolution is poorly represented in these transient simulations, we develop a semi-empirical model to estimate the "AMOC-corrected" temperature and precipitation footprint at regional scales. We show that variations in the AMOC strength during the Holocene are consistent with the observed glacier changes. Our findings highlight the need to better constrain past AMOC behavior, as it may be an important driver of TANAR glacier variations during the Holocene, superimposed on other forcing mechanisms.
Complete list of metadata

Contributor : Irene Schimmelpfennig Connect in order to contact the contributor
Submitted on : Monday, April 4, 2022 - 4:29:27 PM
Last modification on : Friday, April 29, 2022 - 10:12:31 AM


Jomelli et al. 2022 AMOC Holoc...
Publisher files allowed on an open archive



V. Jomelli, D Swingedouw, M Vuille, V Favier, B Goehring, et al.. In-phase millennial-scale glacier changes in the tropics and North Atlantic regions during the Holocene. Nature Communications, Nature Publishing Group, 2022, 401 (1), pp.108125. ⟨10.1038/s41467-022-28939-9⟩. ⟨hal-03629935⟩



Record views


Files downloads