NBP19-01 Cruise: Antarctic Hydrographic and Current Profiles

From December 2018 to March 2020, this dataset contains hydrographic survey data from the research cruise NBP19-01 aboard the RV Nathaniel B. Palmer, primarily in the Bellingshausen and Amundsen Seas. It provides full-depth profiles from 78 stations measuring temperature, salinity, oxygen, fluorescence, PAR, and velocity, with subsequent glider data from 2020. The temperature, salinity, and velocity measurements have been calibrated and quality-controlled.

Use Cases

• Analyzing the genesis and structure of the Antarctic Slope Current based on calibrated velocity profiles.
• Studying water mass properties and mixing processes using full-depth CTD profiles of temperature and salinity.
• Investigating biological productivity indicators through fluorescence and PAR measurements.
• Validating regional ocean circulation models with quality-controlled hydrographic and current data.

Strengths

• Contains data from 78 distinct hydrographic stations, providing spatial coverage.
• Core variables (temperature, salinity, velocity) are calibrated and quality-controlled.
• Combines ship-based CTD/ADCP profiles with autonomous glider data for temporal extension.

Limitations

• Some measured properties (oxygen, fluorescence, PAR) are noted as uncalibrated.
• Conflicting 'last updated' dates (2019-01-19 and 2026-03-05) create uncertainty about data currency.
• Column names and precise data formats are not explicitly listed in the provided metadata.

Provenance

Source

Research cruise NBP19-01 on RV Nathaniel B. Palmer, PI Andrew Thompson.

Collection Method

Collected via Conductivity-Temperature-Depth (CTD) sensor and Lowered Acoustic Doppler Current Profiler (LADCP).

Time Range

2018-12-17 to 2020-03-19

Freshness

2026-03-05 23:00:30.143277

Geography

West Antarctica, largely the Bellingshausen and Amundsen Seas.