Holocene temperatures in southwestern Greenland controlled by topography, ice sheet proximity, and oceanic conditions

Acharya, Sudip; Cluett, Allison A.; Grogan, Amy L.; Briner, Jason P.; Castañeda, Isla S.; Thomas, Elizabeth K.

doi:10.5194/cp-22-1401-2026

Articles | Volume 22, issue 7

https://doi.org/10.5194/cp-22-1401-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-22-1401-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 7

Research article

|

29 Jul 2026

Research article |

| 29 Jul 2026

Holocene temperatures in southwestern Greenland controlled by topography, ice sheet proximity, and oceanic conditions

Sudip Acharya, Allison A. Cluett, Amy L. Grogan, Jason P. Briner, Isla S. Castañeda, and Elizabeth K. Thomas

Supplement

https://doi.org/10.5194/cp-22-1401-2026-supplement

Data sets

Greenland Lake Water Temperature Reconstructions and GDGT Data during the Holocene Acharya, S., Cluett, A. A., Grogan, A. L., Briner, J. P., Castañeda, I. S., and Thomas, E. K. https://doi.org/10.25921/dk6a-xe77

Short summary

We generated five new and compiled previously published Holocene temperature timeseries from southwestern Greenland. We found temperature maxima between 7500 and 5000 years ago, with temperatures approx. 2–5 °C higher than 1994–2024. Afterward, temperatures gradually cooled towards the present, following maximum summer insolation. Local variations in the magnitude and timing of the thermal maximum are related to topography and proximity to the ice sheet and the ocean.