Lake Bonney Autonomous Lake Profiler and Samplers (ALPS): Particulate Organic Carbon and Nitrogen Concentrations

Summary

Abstract: 

Knowledge of the McMurdo Dry Valley (MDV) lakes is limited by winter access, a period which is most relevant in understanding the habitability of other icy worlds and critical to understanding the overall function of these lakes.  Owing to the lack of winter access, data that normally require human presence are incomplete.  Our goal was to conduct the first year-round investigation of the biogeophysics of these unique lakes.  An important part of the McMurdo Long Term Ecological Research (LTER) is evaluating carbon and nitrogen budgets in perennial ice-covered lakes. This data set addresses this core area of research and quantifies the particulate carbon and nitrogen found at specific depths in McMurdo Dry Valley lakes.

Date Range: 

Sunday, December 1, 2013 to Sunday, December 14, 2014

Details about the entity containing (spreadsheet) the ALPS POC_PON data, such as parameter names, units, definitions and other details.

Variables: 

DATASET_CODE
  • Label:
  • Definition: Code to designate the table name
  • 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: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
VOLUME_FILTERED
  • Label:
  • Definition: How much sample was actually filtered
  • Type: Nominal
  • Missing values: None specified
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
PON (ug/L)
  • Label: PON (microg L-1)
  • Definition: Particulate organic nitrogen concentration found at lake depth
  • Type: Physical quantity
  • Unit: metersPerSecondSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • Null = None given
PON (microM)
  • Label:
  • Definition: Particulate organic nitrogen concentration found at lake depth
  • Type: Physical quantity
  • Unit: microM
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • Null = None given
C:N
  • Label:
  • Definition: Carbon to Nitrogen Ratio
  • Type: Physical quantity
  • Unit: metersPerSecondSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • 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

DOI: 

10.6073/pasta/0043c1728b4e51879970d59f2d0ce575

Short name: 

LIMNO_ALPS_POC_PON

Data set ID: 

301
People

Owner/Creator: 

Cristina Takacs-Vesbach

Contact: 

Additional Project roles: 

Field Crew
Field Crew
Field Crew
Field Crew
Data Manager