GO-SHIP Surface Ocean Carbon and Nutrient Measurements from Underway Observations

Surface underway measurements of salinity, oxygen, total inorganic carbon, total alkalinity, pH, silicate, nitrate, nitrite, phosphate, and NH4 collected under the Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP). The dataset is part of a global ocean and climate observing system coordinated by scientists interested in physical oceanography, the carbon cycle, and marine biogeochemistry. It is provided by the National Oceanic and Atmospheric Administration, Department of Commerce.

Use Cases

• Modeling ocean acidification based on pH and total alkalinity measurements
• Studying marine nutrient cycles based on silicate, nitrate, nitrite, phosphate, and NH4 data
• Analyzing the ocean carbon sink based on total dissolved inorganic carbon and total alkalinity observations
• Investigating physical-biogeochemical coupling based on concurrent salinity, oxygen, and carbon system measurements

Strengths

• Data collected under the internationally coordinated GO-SHIP program, which supports a global ocean/climate observing system.
• Includes multiple key variables for carbon cycle and biogeochemical studies: DIC, TA, pH, salinity, oxygen, and nutrients.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic or temporal bias inherent to the specific ship tracks.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Surface underway observations using instruments including a Dissolved Inorganic Carbon Extractor (DICE), Metrohm 876 Dosimat Plus, and Agilent 8453 spectrometer from the R/V.

Freshness

Last updated 2026-03-06 00:12:26.440458; freshness should be verified.

Geography

Indian Ocean (suggested by platform tags I08S and I09N)