Columbia River Plume Hydrographic Casts from the 1990-91 Study

Hydrographic cast data from the 1990-1991 Columbia River Plume Study collected by NOAA NCEI. The dataset includes CTD measurements of temperature, salinity, pressure, and conductivity, along with dynamic height, to map the plume's extent and thickness off Oregon and Washington. Observations were taken from the R/V Wecoma research vessel during the fall season.

Use Cases

• Modeling the spatial extent and thickness of the Columbia River plume based on the CTD profile data.
• Analyzing seasonal coastal hydrography based on the fall 1990-91 observation period.
• Studying relationships between temperature, salinity, and dynamic height in a river-influenced coastal system.
• Calibrating or validating regional ocean circulation models using the in-situ CTD observations.

Strengths

• Data originates from a defined scientific study (Columbia River Plume Study, 1990-1991).
• Includes multiple correlated physical oceanography variables (temperature, salinity, pressure, conductivity, dynamic height).
• Spatial coverage is specified for the coastal region off northern Oregon and southern Washington.

Limitations

• Last updated 1991-02-25 00:00:00; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

NOAA_NCEI

Collection Method

CTD observations collected from the R/V Wecoma research vessel.

Time Range

1990-1991

Freshness

1991-02-25 00:00:00

Geography

Coastal waters off northern Oregon and southern Washington, USA.