Canek Velocity Database: Daily Motion-Corrected Velocity Profiles from the Yucatan Channel Mooring Array (Campaign 57, 2021–2023)

Dataset form the A High-Resolution Current Velocity Database from Observations in the Yucatan Channel data descriptorCanek Velocity Database Daily motion-corrected velocity profiles from the Canek mooring array deployed across the Yucatan Channel between September 2021 and August 2023. Eastward and northward velocity components are interpolated to fixed depths using a shape-preserving piecewise cubic Hermite interpolation (PCHIP) scheme, corrected for mooring motion, and filtered to suppress tidal and supra-inertial variability. The repository also includes instrumental and interpolation uncertainty estimates. The dataset is described in detail in the accompanying Nature Scientific Data Data Descriptor. File Format One NetCDF-4 file per mooring (12 files total) Filename convention: Canek_57_<MOORING_ID>_L3_daily.nc CF-1.10 compliant Feature type: TimeSeriesProfile Dimensions time × depth Daily temporal resolution Fixed target depths defined from the most representative observed depth of each instrument bin Coordinates time — days since 1970-01-01 00:00:00 UTC depth — meters, positive downward lat — degrees north lon — degrees east Variables u Eastward velocity (m s⁻¹) v Northward velocity (m s⁻¹) sigma_b Base (instrumental) uncertainty (m s⁻¹) sigma_i Vertical interpolation uncertainty estimated from bootstrap resampling (m s⁻¹) Processing Summary Velocity records were quality-controlled following manufacturer recommendations. Processing steps include: Removal of side-lobe contamination Removal of acoustic-interference bins Mooring-motion correction using pressure observations Vertical interpolation using PCHIP 48-hour Gaussian low-pass filtering Daily subsampling Estimation of instrumental uncertainty (sigma_b) Estimation of vertical interpolation sensitivity through repeated random subsampling without replacement (sigma_i) A complete description of the methodology is provided in the accompanying Data Descriptor. Spatial and Temporal Coverage Region Yucatan Channel (approximately 21°N, 84°W–87°W), spanning the section between the Yucatan Peninsula and Cuba. Time span September 2021 – August 2023 *The Canek observing program involves contributions from numerous investigators, technicians, students, and ship personnel over multiple deployments. The dataset creators listed in this record correspond to the data curator and principal investigators responsible for the long-term program and public data release.Contact Giovanni [e-mail] Julio [e-mail]