Dataset for: Salt fingers contribute substantially to diapycnal oxygen transport into the oxygen minimum zone of the Eastern South Pacific

This dataset accompanies the manuscript: **“Salt fingers contribute substantially to diapycnal oxygen transport into the oxygen minimum zone of the Eastern South Pacific”** submitted to *Nature Communications Earth & Environment*. It contains processed observational data used to investigate vertical mixing and oxygen fluxes across the lower oxycline of the Eastern South Pacific Oxygen Minimum Zone (ESP-OMZ), based on field campaigns off central Chile (~36.5°S) conducted during 2020–2022.Please read README_data.txt for data description README – OMZ Mixing Analysis Dataset==================================== This dataset accompanies the manuscript:**"Salt fingers contribute substantially to diapycnal oxygen transport into the oxygen minimum zone of the Eastern South Pacific"**submitted to *Nature Communications Earth & Environment*. It contains processed observational data used to investigate vertical mixing and oxygen fluxes across the lower oxycline of the Eastern South Pacific Oxygen Minimum Zone (ESP-OMZ), based on field campaigns off central Chile (36.5°S) during 2020–2022. Directory Structure------------------- data/├── ADCP/│ ├── JAN/ ← no ADCP data was available on the January 2020 cruise│ ├── JUL/ ← July 2021 cruise; includes RDI 300, 600, 1200 kHz data│ │ ├── 1200kHz/ - U, V components and temperature time series│ │ ├── 600kHz/ │ │ ├── 300kHz/│ │ └── ADCP_Data_2021.mat - July 2021 cruise processed data│ └── OCT/ ← October 2022 cruise; includes RDI 300, 600 kHz │ ├── 600kHz/│ ├── 300kHz/│ └── ADCP_Data_2022.mat - October 2022 cruise processed data├── CTD/│ ├── JAN/, JUL/, OCT/ ← Raw and processed CTD profiles for each cruise│ ├── All_CTD_data.mat - Combined file for comparison│ └── Oxi_grad_microMkg.mat - Precomputed oxygen gradients in µmol/kg m-1├── VMP/│ ├── JAN/, JUL/, OCT/ ← Microstructure profiles by cruise│ │ ├── *.P, *.mat - Raw (.P) and converted (.mat) VMP profiles│ │ └── VMP_Data_*.mat - Processed and gridded turbulence data│ ├── ADCP_VMPtime_2021.mat│ ├── ADCP_VMPtime_2022.mat - Time-synced ADCP–VMP segments│ └── density_intervals.mat - Density-based layer definitions├── GLIDER/│ ├─Transect_Figure3d.mat - Offshore glider section conducted from 01 April to 12 April 2011 along 36.5°S, spanning│ │ from ~73°W (coast) to 74.5°W│ │ │ └─TS_Figure3c.mat - Temperature and Salinity profiles at 36.5°S; 74°W used to construct Figure 3c│ See the main text for the description of the dates and location│├── Tu_colormap.mat ← Custom colormap used in figures Data Description---------------- - All '*.mat' files are MATLAB 2020+ format.- Raw '.P' and '.p' files are binary outputs from the Rockland VMP profiler, processed using ODAS (Ocean Data Acquisition System).- Temperature, salinity, density, oxygen, shear, and ε/χ estimates are pre-processed and quality-controlled.- Each directory corresponds to a measurement platform and campaign month. External Datasets (Not Included)-------------------------------- These datasets are not redistributed in this repository but were used in the manuscript: 1. **Sea Surface Temperature (SST):** - MUR-GHRSST, NASA JPL - DOI: https://doi.org/10.5067/GHGMR-4FJ04 2. **Sea Surface Height and Currents:** - SSALTO/DUACS L4 altimetry (CMEMS) - DOI: https://doi.org/10.48670/moi-00148 3. **Wind Forcing:** - ERA5 hourly reanalysis, ECMWF - Hersbach et al., 2020 - https://cds.climate.copernicus.eu 4. **Historical CTD Profiles:** - NOAA World Ocean Database (WOD) - Boyer et al., 2018 - https://www.ncei.noaa.gov/products/world-ocean-database License------- This dataset is distributed under the **Creative Commons Attribution 4.0 International License (CC BY 4.0)**. If you use or modify this dataset, please cite the associated manuscript. Contact------- Mauro Pinto-Juica Department of Marine Sciences University of Gothenburg [e-mail]