Limnological Chemistry, Ion Concentrations and Silicon

Summary

Abstract: 

As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic aqueous geochemical sampling program has been undertaken. A series of terrestrial water samples have been collected and analyzed for major ion chemistry by ion chromatography. The concentrations of ions cover a wide range of total dissolved solids from fresh to hypersaline lake waters. This dataset shows concentrations of lithium, sodium, potassium, magnesium, calcium, chloride, bromide, silicon, fluoride, SO4, and dissolved inorganic carbon found in various depths of Taylor Valley lakes.

Date Range: 

January 1, 1993 to December 31, 2013
Data Citation
Lyons, W., Welch, K. 2014. McMurdo Dry Valleys LTER: Limnological Chemistry, Ion Concentrations and Silicon. Environmental Data Initiative. DOI: 10.6073/pasta/2cbb9e62342bdf6118b20553be7b922f. Dataset accessed 23 October 2019.
Dataset(s)

Description: 

Details about the spreadsheet containing the lakes chemistry data, such as units, definitions and the likes

Variables (click to expand): 

DATASET_CODE
  • Label:
  • Definition: Code to designate the table name
  • Type: Nominal
  • Missing values: None specified
LIMNO_RUN
  • Label: Limno Run
  • Definition: Code for lake's sampling location and date
  • Type: Nominal
  • Missing values: None specified
LOCATION NAME
  • Label: Location Name
  • Definition: Name of lake where measurement was made
  • Type: Nominal
  • Missing values: None specified
LOCATION CODE
  • Label: Location Code
  • Definition: Code for site where measurement was made
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label: Date/time
  • Definition: Date sample was collected
  • Type: Date/time
  • Date format: mm/dd/yyyy
  • Missing values:
    • Required entry = None given
Depth (m)
  • Label:
  • Definition: Distance below the piezometric water level from which sample was drawn
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • Null = None given
Sample Comments
  • Label:
  • Definition: General comments about the sample
  • Type: Nominal
  • Missing values: None specified
Li (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULLr = None given
Li (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Li COMMENTS
  • Label: Li comments
  • Definition: Comments
  • Type: Nominal
  • Missing values: None specified
Na (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Na (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Na COMMENTS
  • Label: Na comments
  • Definition: Comments on the Sodium concentration measurement
  • Type: Nominal
  • Missing values: None specified
K (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
K (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
K COMMENTS
  • Label: K comments
  • Definition: Comments on the potassium concentration measurement
  • Type: Nominal
  • Missing values: None specified
Mg (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Mg (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Mg COMMENTS
  • Label: Mg comments
  • Definition: Comments on the Magnessium concentration measurement
  • Type: Nominal
  • Missing values: None specified
Ca (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Ca (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Ca COMMENTS
  • Label: Ca comments
  • Definition: Comments on the Calcium concentration measurements
  • Type: Nominal
  • Missing values: None specified
F (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULLr = None given
F (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
F COMMENTS
  • Label: F comments
  • Definition: Comments on the concentration of Iron measurement
  • Type: Nominal
  • Missing values: None specified
Cl (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Cl (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Cl COMMENTS
  • Label: Cl comments
  • Definition: Comments on the Chlorine concentration measurements
  • Type: Nominal
  • Missing values: None specified
Br (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Br (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Br COMMENTS
  • Label: Br comments
  • Definition: Comments on the concentration of Bromide measurement
  • Type: Nominal
  • Missing values: None specified
SO4 (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
SO4 (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
SO4 COMMENTS
  • Label: SO4 comments
  • Definition: Comments
  • Type: Nominal
  • Missing values: None specified
Si (mg/L)
  • Label:
  • Definition: mass concentrations
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Si (mM)
  • Label:
  • Definition: millimolar concentration
  • Type: Physical quantity
  • Unit: millimoles/liter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NULL = None given
Si COMMENTS
  • Label: Si comments
  • Definition: Comments
  • Type: Nominal
  • Missing values: None specified
File Name
  • Label:
  • Definition: Original file name before entered into database
  • Type: Nominal
  • Missing values: None specified
DEPTH MASL
  • Label:
  • Definition: Depth referred to the Sea level. Distance below Mean Average Sea water level reference from which sample was drawn
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified

File: 

LIMNO_CHEMISTRY.csv (664.28 KB)

...or query the dataset by variables and dates of interest:

Short name: 

limnochem

Dataset ID: 

62
People

Principal Investigator(s): 

Contact: 

Associated Personnel: 

Field Crew
Data Manager