ID

• Label: Identification number
• Definition: Discrete identification number assigned to each observation.
• Type: Nominal
• Missing values: None specified

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investigator

• Label: Investigator
• Definition: Researcher or investigator who collected the observation.
• Type: Code list
• Codes:
  • welch-eggleton = Paul S. Welch and Frank E. Eggleton
  • miller = Donald E. Miller
  • glover = Rebecca Glover
  • tucker = Allan Tucker
  • rann = NSF Project: Research Applied to National Needs
  • lind = Owen Lind
  • tuchman = Nancy Tuchman
  • bvk = Bob Vande Kopple
  • class = UMBS class measurement
• Missing values: None specified

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Date_mmddyyyy

• Label: Date
• Definition: Date of the observation.
• Type: Date/time
• Date format: mm/dd/yyyy
• Missing values: None specified

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site

• Label: Site
• Definition: Site where the observation was made.
• Type: Code list
• Codes:
  • sfbay = South Fishtail Bay
  • pells = Pells Island Depression
• Missing values: None specified

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instrument

• Label: Instrument
• Definition: Instrument used to make the observation.
• Type: Code list
• Codes:
  • HYDROLAB = Hydrolab Multi-Probe Meter
  • YSI = Yellow State Instrument meter
  • YSI57 = YSI Dissolved Oxygen Meter
  • Quanta = Hydrolab Quanta Multi-Probe Meter
  • Eureka = Eureka meter
  • IN_LAB = measurements taken from samples in the lab
• Missing values: None specified

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depth_m

• Label: Depth in meters
• Definition: Depth of the observation in meters.
• Type: Physical quantity
• Unit: meter
• Maximum: 0
• Minimum: 22
• Precision: Not specified
• Missing values: None specified

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temp_c

• Label: Temperature degrees Celsius
• Definition: Temperature in degrees Celsius at the depth of the observation.
• Type: Physical quantity
• Unit: celsius
• Maximum: 29.4
• Minimum: 0
• Precision: .01
• Missing values: None specified

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DO

• Label: Dissolved oxygen
• Definition: Dissolved oxygen content at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 17
• Minimum: 0
• Precision: .01
• Missing values: None specified

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pH

• Label: pH
• Definition: pH at the depth of the observation.
• Type: Nominal
• Missing values: None specified

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%SAT

• Label: Percent saturation
• Definition: Dissolved oxygen content relative to complete saturation at observation depth and temperature
• Type: Nominal
• Missing values: None specified

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Conduct

• Label: Conductivity
• Definition: Electrical conductivity at the depth of the observation.
• Type: Physical quantity
• Unit: microMhosPerCentimeter
• Maximum: 510
• Minimum: 48
• Precision: 1
• Missing values: None specified

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Free_CO2

• Label: Free carbon dioxide
• Definition: Free carbon dioxide content at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 41
• Minimum: 0
• Precision: .1
• Missing values: None specified

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P-Alk.

• Label: Carbonate alkalinity
• Definition: Alkalinity from the presence of carbonates at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 138
• Minimum: 0
• Precision: .1
• Missing values: None specified

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T-Alk.

• Label: Total alkalinity
• Definition: The measure of all species of alkalinity at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 180
• Minimum: 0
• Precision: .1
• Missing values: None specified

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Ca

• Label: Calcium
• Definition: Calcium content at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 43.13
• Minimum: 14.55
• Precision: .01
• Missing values: None specified

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Mg

• Label: Magensium
• Definition: Magnesium content at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 14.8
• Minimum: 4.6
• Precision: .1
• Missing values: None specified

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Na

• Label: Sodium
• Definition: Sodium content at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 6.82
• Minimum: 1.09
• Precision: .01
• Missing values: None specified

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Cl

• Label: Chlorine
• Definition: Chlorine content at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 7.2
• Minimum: 1.4
• Precision: .01
• Missing values: None specified

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ChlA

• Label: Chlorophyll
• Definition: Chlorophyll abundance at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerCubicMeter
• Maximum: 10.98
• Minimum: .23
• Precision: .01
• Missing values: None specified

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PhaeA

• Label: Phaeophyta
• Definition: Phaeophyta abundance at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerCubicMeter
• Maximum: 9.8
• Minimum: -1.29
• Precision: .01
• Missing values: None specified

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Si

• Label: Silicon
• Definition: Silicon content at the depth of the observation.
• Type: Physical quantity
• Unit: milligramsPerLiter
• Maximum: 3.64
• Minimum: .15
• Precision: .01
• Missing values: None specified

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SPO4

• Label: Soluble phosphate
• Definition: Soluble phosphate or SRP (soluble reactive phosphate) concentration at the depth of the observation.
• Type: Physical quantity
• Unit: microgramsPerLiter
• Maximum: 136.6
• Minimum: 0
• Precision: .1
• Missing values: None specified

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TPO4

• Label: Total phosphate
• Definition: Total phosphate content at the depth of the observation.
• Type: Physical quantity
• Unit: microgramsPerLiter
• Maximum: 139.4
• Minimum: 0
• Precision: .4
• Missing values: None specified

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NO3

• Label: Nitrate
• Definition: Nitrate concentration at the depth of the observation.
• Type: Physical quantity
• Unit: microgramsPerLiter
• Maximum: 392
• Minimum: 1
• Precision: .1
• Missing values: None specified

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NH3

• Label: Ammonia
• Definition: Ammonia concentration at the depth of the observation.
• Type: Physical quantity
• Unit: microgramsPerLiter
• Maximum: 1475.6
• Minimum: 0
• Precision: .1
• Missing values: None specified

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TP

• Label: Total phosphorus
• Definition: Total phosphorus concentration at the depth of the observation.
• Type: Physical quantity
• Unit: microgramsPerLiter
• Maximum: 50
• Minimum: 7
• Precision: .1
• Missing values: None specified