PANGAEA_992654 Experimental data on the impact of wind speed on SML biopolymer enrichment, surface roughness, and interfacial surfactant coverage at the Heidelberg 'Aeolotron,' Engel, Anja Experimental data on the impact of wind speed on SML biopolymer enrichment, surface roughness, and interfacial surfactant coverage at the Heidelberg 'Aeolotron,' 2026-03-17 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.992654 Earth Science geoscientificInformation Aelotron_experiment amino acids Biopolymer carbohydrates SML surface microlayer ULW wind speed 2014-11-03 2014-11-27 Complete 64.08166 64.08166 8.03383 8.03383 BASS Biogeochemical processes and Air-sea exchange in the Sea-Surface microlayer SOLAS Surface Ocean Lower Atmosphere Study SOPRAN Surface Ocean Processes in the Anthropocene access rights needed CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 37.3 kBytes application/vnd.openxmlformats-officedocument.spreadsheetml.sheet Engel, Anja; Friedrichs, Gernot; Krall, Kerstin E; Jähne, Bernd: Wind-induced collapse of the biopolymeric surface microlayer induces sudden changes in sea surface roughness.

This study was part of the larger 'Aeolotron' experiment, conducted in November 2014 to investigate various air-sea exchange processes under controlled wind conditions. The Aeolotron is an annular wind wave tank in Heidelberg, Germany, with a diameter of approximately 10 m, a water depth of 1 m with, a 1.4 m air space above the water, and a total surface area of 18.4 m2. We present data on: 1. The relationship between wind speed (U10) and the apparent thickness of the SML (d) as assessed by glass-plate sampling during the Aeolotron experiment. 2. Mean Square Slopes (MSS, dimensionless) relative to wind speed (U10, m s-1) during experiments with natural seawater over 24 days and a comparisson to pure freshwater. Fresh water data are adopted from: Kunz, J. (2027 ). Active Thermography as a Tool for the Estimation of Air-Water Transfer Velocities. Dissertation. Universität Heidelberg. DOI: 10.11588/heidok.00022903 3. Organic matter components in the SML and ULW at different wind speeds (U10), and associated MSS values. 4. Surfactant surface coverage sc and normalized reduced bulk SML surfactant concentration c*/cmax (bars) and wind speed. No surfactant data were obtained at high wind on day 2. 5. Enrichment Factors (EFs) of individual amino acids (EFAAi) and total hydrolysable amino acids (EFTHAA) 6. EFs between individual sugars (EFCHOi) and total combined carbohydrates (EFTCHO). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.992654"!

https://uol.de/en/bass BASS https://www.pangaea.de/projects/ SOPRAN https://www.solas-int.org SOLAS DIF 9.4 2026-03-17 2026-03-25