Full-depth CTD profiles collected during two RRS James Cook cruises in the Clarion-Clipperton Zone of the Pacific Ocean in 2023 (JC241) and 2024 (JC257). The data were gathered by the National Oceanography Centre, Southampton, UK, using a Sea-Bird 911plus CTD system to support the SMARTEX project's study of deep-sea mining impacts and benthic processes. Post-cruise calibration revealed and corrected a 0.00193°C offset in the secondary temperature sensor.
Use Cases
- Modeling deep-sea temperature and pressure gradients based on full-depth CTD profiles.
- Assessing potential environmental impacts of polymetallic nodule mining in the Clarion-Clipperton Zone.
- Investigating seasonal changes in seafloor currents and benthic boundary layer processes at the UK-1 site.
- Analyzing mesoscale eddy structure in the northern equatorial Pacific Ocean.
Strengths
- Data includes full-depth profiles from two dedicated research cruises (JC241 and JC257).
- A specific sensor calibration (0.00193°C offset correction) was applied to the final files.
- Data collection targeted specific scientific objectives at defined experimental sites (OMCO 1979, UK-1).
Limitations
- Too few salinity samples were collected for sensor verification, so no salinity corrections were applied.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- National Oceanography Centre, Southampton, UK, as part of the NERC-funded SMARTEX project (NE/T003537/1).
- Collection Method
- Collected using a Sea-Bird 911plus CTD system mounted on a rosette frame with Niskin bottles during research cruises.
- Time Range
- 2023 to 2024
- Freshness
- Last updated 2026-03-18 15:10:59.355544; freshness should be verified.
- Geography
- Clarion-Clipperton Zone (CCZ), northern equatorial Pacific Ocean.