Replication Data for: Direct experimental observation of wave-amplified turbulent mixing

Version 2.0
Rømcke, Olav; Gautam, Priyanka; Malila, Mika; Breivik, Øyvind; Hearst, R. Jason; Ellingsen, Simen Ådnøy, 2026, "Replication Data for: Direct experimental observation of wave-amplified turbulent mixing", https://doi.org/10.18710/CQLHPA, DataverseNO, V2
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Description
The purpose of this dataset is to measure wave-amplified turbulent mixing in the water phase near the free surface. This set contains snapshots of the Stereoscopic velocity fields (2D-3C), scalar concentration fields and free surface position in a cross sectional (vertical-spanwise, 23cm-by-23cm) plane in the water phase of the recirculating water channel in Strømningsteknisk at NTNU. In addition the sets also provides synchronized infrared images of the water surface above the laser sheet. In the experiment, mechanically generated surface gravity waves travle upstream on the flow. Particle Image Velocimetry (PIV) is used to capture the velocities and a Laser-Induced Fluorescent, concentration-calibrated dye (Rhodamine 6G) is a proxy for the scalar. The set contains four cases (labeled A-D) with different wave steepness ranging from 0.147-0.199. Each case contains about 24 timeseries of 60 seconds at 15Hz sample rate (Infrared images at 50Hz), as well as about 12 timeseries of 60 seconds at 15Hz sample rate (Infrared images at 50Hz) without mechanically generated waves. In addition a low sample rate (1Hz for 2000 seconds) stereoscopic PIV is also captured for each case. (2026-08-21)
Subject Physics
Keyword Waves, Turbulence, Mixing, Experiment, Particle Image Velocimetry, Laser-Induced Fluorescence
Related Publication Is Supplement To: Rømcke, O., Gautam, P., Breivik, Ø., Malila, M. P., Hearst, R. J., & Ellingsen, S. Å. (2026). Direct Experimental Observation of Wave‐Amplified Turbulent Mixing. Geophysical Research Letters, 53(20).doi: https://doi.org/10.1029/2026GL124399
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00_README.txt
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Published Oct 21, 2026
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Dataset description
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01_ExampleCode.zip
GRL Published Data/ZIP Archive - 9.4 KB
Published Sep 15, 2026
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MD5: dfe0f476eb6ceed4a25ae0cd81b9a6ad
Matlab code showing how to read and access the data. Unzip at location
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02_Schematics.zip
GRL Published Data/ZIP Archive - 148.1 KB
Published Sep 15, 2026
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schematic images. Unzip at location
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LIF.zip
GRL Published Data/Data/ZIP Archive - 10.0 GB
Published Sep 15, 2026
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MD5: ade27045f490458bca1dac7bed4f994c
Laser Induced Fluorescent (LIF) scalar fields. Unzip at location
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PIV_1Hz.zip
GRL Published Data/Data/ZIP Archive - 13.5 GB
Published Sep 15, 2026
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MD5: d532a400d5cf9bb083ae05a763eeb6f7
Velocity fields (2D-3C PIV) and spatial derivatives. in Eulerian (lab) coordinates. Unzip at location
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Surface.zip
GRL Published Data/Data/ZIP Archive - 1.1 GB
Published Sep 15, 2026
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MD5: 3174ebcc201092699ad47b5eaaf5704c
Water surface position. Unzip at location
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Surface_1Hz.zip
GRL Published Data/Data/ZIP Archive - 15.7 MB
Published Sep 15, 2026
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MD5: c83f50ff3a55cc9b91c30edc825ec819
Water surface position, 1Hz. Unzip at location
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WaveProbe.zip
GRL Published Data/Data/ZIP Archive - 2.0 GB
Published Sep 15, 2026
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MD5: 8867b92762f39a6650229ca8124cdb79
Wave probe data. Unzip at location
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IR_Swaths.zip
GRL Published Data/Data/IR/ZIP Archive - 441.2 MB
Published Sep 15, 2026
685 Downloads
MD5: a738a00c864581473baf5222aa2c468c
Infrared swaths above the laser sheet. Unzip at location
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IR_Full_CaseA_NoWaves.zip
GRL Published Data/Data/IR/FullMovies/ZIP Archive - 17.4 GB
Published Sep 15, 2026
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MD5: 8e35369afb8db44ab8625e1540a0b17b
Infra red images for Case A, without waves. Unzip at location
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