Free CO2

• Label: Free carbon dioxide
• Definition: Concentration of free carbon dioxide at the observation depth.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 18
• Minimum: 0
• Precision: Not specified
• Missing values: None specified

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P-Alk.

• Label: Carbonate alkalinity
• Definition: Alkalinity from the presence of carbonate at the observation depth.
• Type: Physical quantity
• Unit: milligramsPerLiterCaCO3
• Maximum: 138
• Minimum: 0
• Precision: Not specified
• Missing values: None specified

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T-Alk.

• Label: Total alkalinity
• Definition: The measure of all species of alkalinity at the observation depth.
• Type: Physical quantity
• Unit: milligramsPerLiterCaCO3
• Maximum: 141
• Minimum: 106
• Precision: Not specified
• Missing values: None specified