Hourly oceanographic measurements from a two-dimensional array of inverted echo sounders and current meters in the Japan/East Sea. Data collection was sponsored by the Office of Naval Research and conducted by NOAA NCEI from June 1999 to July 2001. The processed dataset includes vertical acoustic travel time, pressure, temperature, and horizontal currents.
Use Cases
- Analyze correlations between vertical acoustic travel time and pressure measurements to infer water column structure.
- Model shallow and deep current variability using the horizontal current data from recording current meters.
- Study temporal patterns in sea temperature and pressure records, which have been low-pass filtered and subsampled to twice daily.
- Reconstruct a coherent spatial picture of ocean dynamics using the adjusted pressure data projected onto a common geopotential surface.
- Apply spline interpolation techniques to address gaps in the provided current measurement records.
Strengths
- Data spans over two years of continuous hourly measurements from June 1999 to July 2001.
- Includes multiple synchronized physical variables: acoustic travel time, pressure, temperature, and currents.
- Processing provides a coherent array with data projected to common depth levels and adjusted to a common geopotential surface.
Limitations
- Sample size and specific row/column counts are unknown.
- Data is temporally stale, with the last update recorded in June 2001.
- Small gaps in current measurements exist, filled by interpolation which may introduce artifacts.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI Accession 0002331), sponsored by the Office of Naval Research.
- Collection Method
- Field experiment using a two-dimensional array of pressure-gauge equipped inverted echo sounders (PIES) and deep recording current meters (RCM).
- Time Range
- June 1999 to July 2001
- Freshness
- null
- Geography
- Southwest Japan/East Sea