Articles | Volume 22, issue 7
https://doi.org/10.5194/cp-22-1401-2026
https://doi.org/10.5194/cp-22-1401-2026
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

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A 1100-year multi-proxy palaeoenvironmental record from Lake Höglwörth, Bavaria, Germany
Sudip Acharya, Maximilian Prochnow, Thomas Kasper, Linda Langhans, Peter Frenzel, Paul Strobel, Marcel Bliedtner, Gerhard Daut, Christopher Berndt, Sönke Szidat, Gary Salazar, Antje Schwalb, and Roland Zech
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Cited articles

Acharya, S., Zech, R., Strobel, P., Bliedtner, M., Prochnow, M., and De Jonge, C.: Environmental controls on the distribution of GDGT molecules in Lake Höglwörth, Southern Germany, Org. Geochem., 186, 104689, https://doi.org/10.1016/j.orggeochem.2023.104689, 2023. 
Acharya, S., Cluett, A. A., Grogan, A. L., Briner, J. P., Castañeda, I. S., and Thomas, E. K.: Greenland Lake Water Temperature Reconstructions and GDGT Data during the Holocene, NOAA [data set], https://doi.org/10.25921/dk6a-xe77, 2026. 
Andresen, C. S., Björck, S., Bennike, O., and Bond, G.: Holocene climate changes in southern Greenland: evidence from lake sediments, J. Quaternary Sci., 19, 783–795, https://doi.org/10.1002/jqs.886, 2004. 
Antoniades, D., Klanten, Y., Cameron, E., Garcia-Oteyza, J., Oliva, M., and Vincent, W. F.: Evidence of summer thermal stratification in extreme northern lakes, Arctic Science, 10, 225–232, https://doi.org/10.1139/as-2023-0037, 2024. 
Axford, Y., Losee, S., Briner, J. P., Francis, D. R., Langdon, P. G., and Walker, I. R.: Holocene temperature history at the western Greenland Ice Sheet margin reconstructed from lake sediments, Quaternary Sci. Rev., 59, 87–100, https://doi.org/10.1016/j.quascirev.2012.10.024, 2013. 
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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.

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