Particulate organic carbon (POC) and nitrogen (PON) concentrations in discrete water column samples collected from lakes in the McMurdo Dry Valleys, Antarctica (1993-2019, ongoing)

Summary

Abstract: 

An important part of the McMurdo Long Term Ecological Research (LTER) is evaluating carbon and nitrogen budgets in perennial ice-covered lakes. This dataset addresses this core area of research and quantifies the particulate organic carbon (POC) and nitrogen (PON) found at specific depths in lakes across the McMurdo Dry Valleys of Antarctica.

Date Range: 

October 27, 1993 to December 17, 2019
Data Citation
Priscu, J. 2021. Particulate organic carbon (POC) and nitrogen (PON) concentrations in discrete water column samples collected from lakes in the McMurdo Dry Valleys, Antarctica (1993-2019, ongoing). Environmental Data Initiative. DOI: 10.6073/pasta/ab14e3003e6180c6200abd6bc72441a3. Dataset accessed 21 June 2021.
Dataset(s)

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:
  • Definition: Name of lake where measurement was made
  • Type: Nominal
  • Missing values: None specified
Location Code
  • Label:
  • Definition: Code for site where measurement was made
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date on which sample was gathered
  • Type: Date/time
  • Date format: mm/dd/yyyy
  • Missing values: None specified
Depth (m)
  • Label:
  • Definition: Distance below the piezometric water level from which sample was drawn.
  • Type: Physical quantity
  • Unit: meter
  • Maximum: 45
  • Minimum: 1
  • Precision: 1
  • Missing values:
    • Required entry = None given
POC (ug/L)
  • Label: POC (microg L-1)
  • Definition: Particulate organic carbon concentration found at lake depth
  • Type: Physical quantity
  • Unit: ug/L
  • Maximum: 3000
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
POC (microM)
  • Label:
  • Definition: Particulate organic carbon concentration found at lake depth
  • Type: Physical quantity
  • Unit: microM
  • Maximum: 200
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
POC Comments
  • Label:
  • Definition: Helpful hints about the POC sample
  • Type: Nominal
  • Missing values: None specified
PON (ug/L)
  • Label: PON (microg L-1)
  • Definition: Particulate organic nitrogen concentration found at lake depth
  • Type: Physical quantity
  • Unit: ug/L
  • Maximum: 500
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
PON (microM)
  • Label:
  • Definition: Particulate organic nitrogen concentration found at lake depth
  • Type: Physical quantity
  • Unit: microM
  • Maximum: 20
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
PON Comments
  • Label:
  • Definition: Helpful hints about the PON sample
  • Type: Nominal
  • Missing values: None specified
C:N
  • Label:
  • Definition: Carbon to Nitrogen Ratio
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • Null = None given
Sample Comments
  • Label:
  • Definition: Helpful hints about the overall sample
  • Type: Nominal
  • Missing values: None specified
File Name
  • Label:
  • Definition: Name of file in which data was submitted
  • 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: 

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

Short name: 

limncn.dat

Dataset ID: 

57
People

Principal Investigator(s): 

Contact: 

Associated Personnel: 

Field Technician
Data Manager
Former Field Crew
Former Data Manager
Former Data Manager
Former Data Manager