CLIVAR A05_2011: Ocean Carbon and Hydrographic Profile Data

Discrete sample and profile data were collected during the R/V Sarmiento de Gamboa cruise 24N_Malaspina_2011 in the North Atlantic Ocean from 2011-01-28 to 2011-03-14. The dataset includes measurements of total alkalinity, pH, water temperature, salinity, dissolved oxygen, and nutrients. It supports the CLIVAR Repeat Hydrography Program's goal of quantifying changes in ocean heat, freshwater, and carbon dioxide storage and transport.

Use Cases

• Quantifying changes in ocean carbon storage based on total alkalinity and pH measurements.
• Analyzing water column structure and variability using CTD-derived temperature and salinity profiles.
• Studying nutrient dynamics and biogeochemical cycles in the North Atlantic Ocean.
• Calibrating and validating oceanographic models with discrete, high-quality profile data.

Strengths

• Data is part of the systematic, global CLIVAR Repeat Hydrography Program, ensuring standardized collection methods.
• Includes multiple core oceanographic variables (total alkalinity, pH, temperature, salinity, oxygen, nutrients) from a single cruise.
• Dataset is hosted by the U.S. National Oceanic and Atmospheric Administration (NOAA) and is part of the World Data Service for Oceanography.

Limitations

• Column names and specific data structure are not provided in the available metadata.
• The exact row count and file size are unknown, limiting immediate assessment of dataset scale.
• Conflicting 'last updated' dates exist between platforms (2011-03-14 vs. 2026-03-05), creating uncertainty about metadata maintenance.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Data collected via Alkalinity titrator, CTD, Niskin bottles, and spectrophotometer during a research cruise.

Time Range

2011-01-28 to 2011-03-14

Freshness

2026-03-05 22:43:48.842008

Geography

North Atlantic Ocean along the CLIVAR Repeat Section A05