Sea of Japan Temperature and Salinity Profiles from 2001 Oceanographic Study

NCEI Accession 0002416 contains pressure, temperature, and salinity profiles collected in the Sea of Japan from June to July 2001. The dataset was sponsored by the Office of Naval Research to investigate shallow and deep current variability. Data includes hourly measurements of vertical acoustic travel time, pressure, temperature, and horizontal currents, processed for use as a coherent array.

Use Cases

• Analyze correlations between pressure, temperature, and salinity at specific depths to characterize water masses.
• Model deep current variability using the time-series of horizontal current measurements and adjusted pressure data.
• Study temporal patterns in the Sea of Japan by examining the low-pass filtered, twice-daily subsampled acoustic travel time records.
• Investigate geopotential surfaces using the adjusted pressure data referenced to a common deep level.

Strengths

• Data is processed for coherence, with travel time records projected to a common depth and pressures adjusted to a common geopotential surface.
• Includes interpolated values for small gaps in current measurements, improving data continuity.

Limitations

• Dataset size, row count, and specific column details are unknown.
• Temporal coverage is limited to approximately two months in mid-2001.
• Geographic coverage is specific to the southwest Japan/East Sea, limiting broader regional analysis.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI), under sponsorship of the Office of Naval Research.

Collection Method

Collected using pressure-gauge equipped inverted echo sounders (PIES) and deep recording current meters (RCM), with subsequent processing including filtering and interpolation.

Time Range

June to July 2001.

Freshness

Data collection ended in July 2001; the dataset is historical.

Geography

Sea of Japan (specifically the southwest Japan/East Sea).