Coastal Water Velocity and Suspended Sediment Data from Southeast Alaska, June 2015

Acoustic Doppler Current Profiler (ADCP) and Conductivity-Temperature-Depth (CTD) data collected from two moored research vessels in southeast Alaska and British Columbia coastal waters from June 14 to 16, 2015. The dataset includes echo intensity used to derive suspended sediment concentration and water velocity magnitude used to characterize a turbidity current on June 15. Data were collected by NOAA NCEI and are stored in ASCII format.

Use Cases

• Modeling suspended sediment concentration based on acoustic echo intensity data.
• Analyzing turbidity current dynamics based on water velocity magnitude measurements.
• Calibrating acoustic inversion methods for sediment concentration using physical sample data mentioned in the description.
• Studying coastal water column structure based on conductivity, temperature, and depth (CTD) casts.

Strengths

• Data captures a specific turbidity current event measured on June 15, 2015.
• Instruments were deployed from fixed, moored vessels, suggesting stable measurement conditions.
• Echo intensity data was calibrated using physical samples.

Limitations

• Last updated 2015-06-16 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

Deployed from moored research vessels Strickland and Heron using ADCP and CTD instruments.

Time Range

2015-06 14 to 2015-06-16

Freshness

Data is from a specific campaign in 2015; not updated.

Geography

Coastal waters of southeast Alaska and British Columbia, specifically downstream of the Squamish delta.