10.18710/K3CDJJ Stachowska, Zofia Zofia Stachowska https://orcid.org/0000-0001-7124-9231 Institute of Marine and Environmental Sciences, Doctoral School, University of Szczecin, Poland DataverseNO 2026 Earth and Environmental Sciences X-ray fluorescence Computed tomography Grain-size End Member Modelling Analysis Sedimentology Geochemistry Lake sediment Eolian sediment Westerly winds Paleoclimate Paleoreconstructions Paleolimnology Holocene Arctic environment Spitsbergen Svalbard Loess High latitude dust University of Szczecin Institute of Marine and Environmental Sciences, Doctoral School University of Bergen Department of Earth Science and Bjerknes Centre for Climate Research, University of Bergen, Centre for Deep Sea Research, Department of Earth Science University Centre in Svalbard Department of Arctic Geology University of South Bohemia Centre for Polar Ecology, Faculty of Science University of Wrocław Alfred Jahn Cold Regions Research Centre, Institute of Geography and Regional Development University of Bergen Zofia Stachowska Zofia Stachowska Institute of Marine and Environmental Sciences, Doctoral School, University of Szczecin, Poland 2026-03-30 2026-04-24 2023-09-01/2026-03-30 10.31223/X5719B 10.18710/K3CDJJ/GJ7E4K 10.18710/K3CDJJ/VA0DEN 10.18710/K3CDJJ/GI7XDN 10.18710/K3CDJJ/EMCF76 10.18710/K3CDJJ/15XTLL 10.18710/K3CDJJ/W4GC2W 10.18710/K3CDJJ/KBHTBX 10.18710/K3CDJJ/LZUEAC 10.18710/K3CDJJ/2MWYU2 10.18710/K3CDJJ/74GHGI 10.18710/K3CDJJ/DDZMMR 10.18710/K3CDJJ/LCK80E 10.18710/K3CDJJ/0V96Z6 10.18710/K3CDJJ/MU389L 10.18710/K3CDJJ/R1FUTV 10.18710/K3CDJJ/73EJCS 10.18710/K3CDJJ/BFQZVJ 10.18710/K3CDJJ/JT9G07 10.18710/K3CDJJ/LXOW57 118778 1231734 2721 150923 763 742 63137 691 104185 3749 268420 48245 38824 524 133 665 562 7584 36116 text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain text/plain 1.0 Creative Commons CC0 1.0 Universal Public Domain Dedication. This dataset includes sediment analyses performed on core DST-2023-GC (78º27’N, 16º41’E, ~65 m a.s.l.) from Dunsappietjørna – a lake in Gipsdalen, Central Svalbard. The core was extracted during the summer of 2023 using a UWITEC gravity corer and analyzed throughout 2023-2025 to reconstruct the eolian signal in this sheltered inner-fjord-valley setting. The ~120.5 cm-long record dates back to ca. 8,200 cal. yrs B.P. Additionally, in the summer of 2024, we collected four sediment catchment samples (CS 1-4) and analysed them together with the core record. The data are organized by figures and tables, in .txt format and contain all the original data presented in the main manuscript and its supplement. Additional details and references relevant to this replication data may also be found herein, in the appended README and REFERENCES files, respectively. ABSTRACT: The Arctic is warming faster than any other region on Earth. As sea-ice diminishes, surface boundary conditions (roughness and air-sea coupling) change and open-water fetch increases, potentially strengthening the effective wind forcing on Arctic coasts. These changes can be recorded in lake sediments through the deposition of wind-blown grains and elements, offering insights into past wind and climate dynamics. We reconstruct ca. 8,200 yrs of wind-climate variability using laminated sediments from a closed-basin lake in the Central part of the High Arctic Svalbard archipelago. By integrating geochemical, visual, and granulometric fingerprints within a multiproxy geostatistical framework, we link wind-blown minerogenic input to specific catchment sources and show that iron (Fe)- and titanium (Ti)- enriched clasts originate from distinct dolerite outcrops West of the lake, upwind of the dominant summer Westerlies. These results reveal a locally filtered Westerly input, consistent with valley-fjord channelling. We identify four Mid- and Late Holocene phases of enhanced eolian activity that occurred during intervals when local boundary conditions favoured the entrainment and transport of sediment into the basin. Unit-scale sedimentation shifts can be placed at the end of the Holocene optimum and at the stepwise onset of the Neoglacial. However, the reconstructed wind signal shows comparatively stable long-term behaviour and no direct correspondence with paleoclimate records. Thermo Scientific Pathfinder X-ray Microanalysis GRADISTAT AnalySize, 1.2.2 Adobe Illustrator, 15 MATLAB ThermoFisher Avizo, 2 QAnalySeries Grapher, 8 Adobe Illustrator, 2015 PAST, 4 CoDaPack Bacon, 3.2.0 R, 2.5.0 QGIS, 3.34 Norway, Svalbard, The Polish National Science Centre: ‘ASPIRE - Arctic storm impacts recorded in beach-ridges and lake archives: scenarios for less icy future’ No. UMO-2020/37/B/ST10/03074 HarSval Bilateral initiative aiming at a Harmonisation of the Svalbard cooperation and activities funding from the means of the EEA and Norway Grants 2014-2021 No. UMO-2023/43/7/ST10/00001 Polish Ministry of Science and Higher Education’s Regional Excellence Initiative Programme No. 3/D/2025 The Trond Mohn Stiftelse: Starting Grant No. TMS2021STG01