Nutrient tracer injection experiments in supraglacial streams on Canada Glacier, Antarctica, January 2019

Summary

Abstract: 

This dataset contains a series of grab samples collected from nutrient tracer injection experiments conducted in supraglacial streams on Canada Glacier in Taylor Valley, Antarctica. The purpose of these experiments was to measure potential nutrient uptake in supraglacial stream networks. We chose three reaches and co-injected nutrient tracer(s) and a conservative tracer (NaCl). Tracers were injected at the top of each reach, allowed to mix with the stream water, and move downstream. Grab samples in this dataset were collected at the base of the reach over the course of these tracer experiments, which ran from 14-19 January 2019.

Date Range: 

January 14, 2019 to January 19, 2019
Data Citation
Bergstrom, A.J., Gooseff, M.N. 2020. McMurdo Dry Valleys LTER: Nutrient tracer injection experiments in supraglacial streams on Canada Glacier, Antarctica, January 2019. Environmental Data Initiative. DOI: 10.6073/pasta/293caa4b1b4c24b7b5b5713500cb5e37. Dataset accessed 14 August 2020.
Dataset(s)

Description: 

Supraglacial Stream Tracer Experiment

Variables (click to expand): 

DATASET_CODE
  • Label: Dataset code
  • Definition: Internal dataset code.
  • Type: Nominal
  • Missing values: None specified
INDEX_CODE
  • Label: Index code
  • Definition: Internal lab code / unique identifier.
  • Type: Nominal
  • Missing values: None specified
REACH
  • Label: Reach
  • Definition: Reach in which the experiment was conducted.
  • Type: Nominal
  • Missing values: None specified
SAMPLE
  • Label: Sample
  • Definition: Sample number/name within the experiment, where BG is a background sample, "Bottom" is the end of the reach, "Top" is the start of the reach. Numeric samples are collected during the tracer experiment.
  • Type: Nominal
  • Missing values: None specified
INJECTION
  • Label: Injection
  • Definition: Nutrient(s) used in the specific experiment, where N is nitrogen, P is phosphorus, C is carbon. E.g., N+P indicates both nitrogen and phosphorous were injected.
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label: Date and time
  • Definition: Date and time when sample was collected (GMT+13).
  • Type: Date/time
  • Date format: DD/MM/YYYY HH:MM:SS
  • Missing values: None specified
CL_MG_L
  • Label: Chloride concentration
  • Definition: Chloride (Cl) concentration in the sample.
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = missing
N-NO3_MG_L
  • Label: Nitrogen (as nitrate) concentration
  • Definition: Nitrogen (N-NO3) concentration in the sample. Any value of 0 is below the detection limit of the instrument.
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = missing
P-PO4_MG_L
  • Label: Phosphorus concentration
  • Definition: Phosphorus (P-PO4) concentration in the sample. Any value of 0 is below the detection limit of the instrument.
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = missing
SO4_MG_L
  • Label: Sulfate concentration
  • Definition: Sulfate (SO4) concentration in the sample.
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = missing
NA_MG_L
  • Label: Sodium concentration
  • Definition: Sodium (Na) concentration in the sample.
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = missing
K_MG_L
  • Label: Potassium concentration
  • Definition: Potassium (K) concentration in the sample.
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = missing
MG_MG_L
  • Label: Magnesium concentration
  • Definition: Magnesium (Mg) concentration in the sample.
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = missing
CA_MG_L
  • Label: Calcium concentration
  • Definition: Calcium (Ca) concentration in the sample.
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified

File: 

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

Short name: 

GLACIER_SUPRA_TRACER

Dataset ID: 

2017
People

Principal Investigator(s): 

Contact: 

Associated Personnel: 

Field Technician
Associated Researcher
Lab Technician
Data Manager