Stream Nutrients (nitrate, nitrite, ammonium, reactive phosphorus)

Summary

Abstract: 

As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the glacial meltwater streams in that region. This table contains macronutrient concentrations found at specific locations in McMurdo Dry Valley streams.

Date Range: 

December 12, 1990 to January 31, 2016
Data Citation
Lyons, W. 2015. McMurdo Dry Valleys LTER: Stream Nutrients (nitrate, nitrite, ammonium, reactive phosphorus). Environmental Data Initiative. DOI: 10.6073/pasta/81cfcad244f7d3f6a6fcdab83ea75849. Dataset accessed 21 October 2019.
Dataset(s)

Description: 

Details on the stream nutrients spreadsheet, such as scientifics units used, measurement definitions and other supporting information to interpret accurately the data provided in the spreadsheet columns, 

Variables (click to expand): 

DATASET_CODE
  • Label: Dataset code
  • Definition: Code representing stream nutrients dataset
  • Type: Nominal
  • Missing values: None specified
strmgageid
  • Label:
  • Definition: Code representing stream gauge station
  • Type: Nominal
  • Missing values: None specified
LOCATION NAME
  • Label: Location
  • Definition: Name of stream gauge station
  • Type: Nominal
  • Missing values: None specified
Sample Name
  • Label:
  • Definition: An ID to Name the sample
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date/time of sample (McMurdo time)
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:mi
  • Missing values: None specified
N-NO3 (ug/L)
  • Label:
  • Definition: nitrate concentration in mass units
  • Type: Physical quantity
  • Unit: microgramsPerLiter
  • Maximum: Not specified
  • Minimum: -1.0
  • Precision: 0.1
  • Missing values:
    • Null = None given
N-NO3 (uM)
  • Label: N-NO3 (microM)
  • Definition: nitrate concentration in molar units
  • Type: Physical quantity
  • Unit: microM
  • Maximum: Not specified
  • Minimum: -1.0
  • Precision: 0.001
  • Missing values:
    • Null = None given
N-NO3 Comments
  • Label:
  • Definition: Comments on nitrate measurements
  • Type: Nominal
  • Missing values: None specified
N-NO2 (ug/L)
  • Label:
  • Definition: nitrite concentration in mass units
  • Type: Physical quantity
  • Unit: microgramsPerLiter
  • Maximum: Not specified
  • Minimum: -1.0
  • Precision: 0.1
  • Missing values:
    • Null = None given
N-NO2 (uM)
  • Label: NO2 (microM)
  • Definition: nitrite concentration in molar units
  • Type: Physical quantity
  • Unit: microM
  • Maximum: Not specified
  • Minimum: -1.0
  • Precision: 0.1
  • Missing values:
    • Null = None given
N-NO2 Comments
  • Label:
  • Definition: Comments on nitrite measurements
  • Type: Nominal
  • Missing values: None specified
N-NH4 (ug/L)
  • Label:
  • Definition: ammonium concentration in mass units
  • Type: Physical quantity
  • Unit: microgramsPerLiter
  • Maximum: Not specified
  • Minimum: -1.0
  • Precision: 0.1
  • Missing values:
    • Null = None given
N-NH4 (uM)
  • Label: NH4 (microM)
  • Definition: ammonium concentration in molar units
  • Type: Physical quantity
  • Unit: microM
  • Maximum: Not specified
  • Minimum: -1.0
  • Precision: 0.1
  • Missing values:
    • Null = None given
N-NH4 Comments
  • Label:
  • Definition: Comments on ammonium measurements
  • Type: Nominal
  • Missing values: None specified
SRP (ug/L)
  • Label:
  • Definition: Soluble Reactive P concentration in mass units
  • Type: Physical quantity
  • Unit: microgramsPerLiter
  • Maximum: Not specified
  • Minimum: -1.0
  • Precision: 0.1
  • Missing values:
    • Null = None given
SRP (uM)
  • Label: SRP (microM)
  • Definition: Soluble Reactive P concentration in molar units
  • Type: Physical quantity
  • Unit: microM
  • Maximum: Not specified
  • Minimum: -1.0
  • Precision: 0.1
  • Missing values:
    • Null = None given
SRP Comments
  • Label:
  • Definition: Comments on Soluble Reactive P measurements
  • Type: Nominal
  • Missing values: None specified
SAMPLE_COMMENTS
  • Label:
  • Definition: General Comments about the sample - applies to all analytes
  • Type: Nominal
  • Missing values: None specified
Data_Source
  • Label:
  • Definition: file name and/or location of data documentation
  • Type: Nominal
  • Missing values: None specified
Analytical_Method
  • Label:
  • Definition: Method / instrument used to measure nutrient concentrations
  • Type: Nominal
  • Missing values: None specified

File: 

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

Short name: 

strmnutr

Dataset ID: 

21
People

Principal Investigator(s): 

Contact: