Lake Hoare Tracer Test Stream Chemistry

Summary

Abstract: 

As part of the McMurdo Dry Valleys, Long Term Ecological Research (MCM-LTER) project in Antarctica, a LiCl tracer was injected into Andersen Creek in the Lake Hoare basin on 17 December 2012.  The purpose of this study was to determine the fate of stream water below lake ice.  Injection began at 20:30 hours and continued for two hours.  Water samples were collected at half-hour intervals from 5 stream sites and 15 ice boreholes over a 4 hour period beginning at the start of injection.  Samples were analyzed for major cations and major anions using an ion chromotograph at McMurdo Station.  Results show that stream water moved West along the lake shoreline below the moat ice, and did not generate interflow below the perennial lake ice

Date Range: 

December 16, 2012 to December 17, 2012
Data Citation
Castendyk, D. 2013. McMurdo Dry Valleys LTER: Lake Hoare Tracer Test Stream Chemistry. Environmental Data Initiative. DOI: 10.6073/pasta/c47b7c82af71cb7aa56596c41efe4607. Dataset accessed 21 October 2019.
Dataset(s)

Variables (click to expand): 

Location ID
  • Label:
  • Definition: Sampling Location ID code
  • Type: Nominal
  • Missing values: None specified
Latitude
  • Label:
  • Definition: Latitude where sample was taken, in decimal degrees
  • Type: Physical quantity
  • Unit: degree
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Longitude
  • Label:
  • Definition: Longitude where sample was taken, in decimal degrees
  • Type: Physical quantity
  • Unit: degree
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Elevation (m)
  • Label:
  • Definition: Elevation as reported by GPS
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Ice thickness (cm)
  • Label:
  • Definition: Lake Ice thickness where sample was taken, in centimeters. Value is zero if no ice (a stream)
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Sample depth (cm)
  • Label:
  • Definition: Sample depth (cm) relative to the ice bottom, in centimeters
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Date Time
  • Label:
  • Definition: Date/time of sample (McMurdo time)
  • Type: Date/time
  • Date format: MM/DD/YYYY HH:mm
  • Missing values:
    • Required entry = None given
Li+ (mg/L)
  • Label:
  • Definition: Lithium concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 50
  • Minimum: 0
  • Precision: 0.001
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph
Na+ (mg/L)
  • Label:
  • Definition: sodium concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 100
  • Minimum: 0
  • Precision: 1
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph
K+ (mg/L)
  • Label:
  • Definition: potassium concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 10
  • Minimum: 0
  • Precision: 0.001
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph
Mg2+ (mg/L)
  • Label:
  • Definition: magnesium concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 10
  • Minimum: 0
  • Precision: 0.0001
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph
Ca2+ (mg/L)
  • Label:
  • Definition: calcium concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 50
  • Minimum: 0
  • Precision: 0.001
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph
Cl- (mg/L)
  • Label:
  • Definition: chlorine concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 100
  • Minimum: 0
  • Precision: 0.001
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph
F- (mg/L)
  • Label:
  • Definition: Iron concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 2
  • Minimum: 0
  • Precision: 0.001
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph
N-NO3- (mg/L)
  • Label:
  • Definition: Nitrogen-Nitrate concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 2
  • Minimum: 0
  • Precision: 0.0001
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph
SO42-(mg/L)
  • Label:
  • Definition: sulfate concentration
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 50
  • Minimum: 0
  • Precision: 0.0001
  • Missing values:
    • ND = Concentration below detection limit of ion chromatograph

File: 

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

Short name: 

LakeHoareTracer_Dec_2012

Dataset ID: 

300
People

Principal Investigator(s): 

Contact: 

Associated Personnel: 

Field Crew
Associated Researcher
Field Crew
Associated Researcher
Field Crew
Lab Crew