Line W Hydrographic Section with Transient Tracers from 2009

Twenty-six full-depth hydrographic casts were collected along Line W in the Northwest Atlantic during a 2009 research cruise. The National Oceanic and Atmospheric Administration (NOAA) produced this dataset, which includes calibrated CTD measurements and water sample analyses for salinity, oxygen, and transient tracers. Data collection occurred from August 31st to September -10th, 2009.

Use Cases

• Calibrating ocean circulation models using direct measurements of temperature, salinity, and pressure (CTD data).
• Analyzing the distribution and penetration of anthropogenic tracers like CFCs and SF6 to study water mass ventilation and age.
• Studying dissolved oxygen variability and its relationship to biological processes and water mass properties.
• Investigating the physical structure of the Northwest Atlantic using Lowered Acoustic Doppler Current Profiler (LADCP) velocity profiles.

Strengths

• Includes 26 full-depth casts, providing a detailed vertical and spatial profile of the ocean section.
• Sensor data for conductivity, temperature, and pressure is calibrated using shipboard analyses of salinity and dissolved oxygen from water samples.
• Contains measurements of multiple transient tracers (CFCs, SF6, I-129), enabling studies of ocean ventilation and mixing.

Limitations

• The exact column names and data structure are not provided by any source platform.
• Sources conflict on the temporal coverage: one source states data collection ended on September 7th, 2009, while another states September 10th, 2009.
• The row count, file size, and specific license information are unknown.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Data collected via shipboard CTD, LADCP, and rosette water sampler casts from the R/V OCEANUS.

Time Range

2009-08 31 to 2009-09-10

Freshness

2026-04-01 15:28:45.871454

Geography

Northwest Atlantic Ocean, along Line W from the continental shelf south of New England toward Bermuda.