RV Polarstern Cruise PS122/1: Thermosalinograph Oceanography Data

Calibrated temperature, conductivity, and salinity measurements collected by thermosalinographs aboard the RV Polarstern during expedition PS122/1. Data were processed from raw 1-second resolution readings into validated 10-minute means aligned with ship position. The dataset was created by Markus Rex of the Alfred Wegener Institute.

Use Cases

• Analyzing mixed-layer temperature variability based on calibrated water temperature data.
• Studying salinity distribution in polar regions based on processed salinity values.
• Validating oceanographic models using high-resolution, ship-track-aligned time-series data.
• Investigating sensor drift correction methodologies based on the described calibration process.

Strengths

• Data underwent sensor drift correction using calibration coefficients from before and after the expedition.
• Measurements were made with external high-accuracy temperature sensors (SBE38).
• Processed data are provided as 10-minute means aligned with ship position data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• A speed filter was not applied; slow drift speed may lead to small overestimations of mixed-layer temperature.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Collection Method

Raw data acquired by thermosalinographs (SBE21) on RV Polarstern, processed and calibrated.

Time Range

During expedition PS122/1.

Geography

Along the RV Polarstern cruise track for expedition PS122/1.