Lake Bonney Autonomous Lake Profiler and Samplers (ALPS): Photosynthetically Active Radiation

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 intensity of photosynthetically active radiation (PAR) at specific depths in McMurdo Dry Valley lakes.

Date Range: 

Sunday, December 1, 2013 to Monday, December 14, 2015

...or query the data clicking the:

Variables: 

DATASET_CODE
  • Label:
  • Definition: A code to ID the data container.
  • Type: Nominal
  • Missing values: None specified
LOCATION_NAME
  • Label:
  • Definition: The lake where data was collected
  • Type: Nominal
  • Missing values: None specified
LOCATION CODE
  • Label:
  • Definition: The Lake code, according to the MCM LTER program.
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date when data point was collected
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:Mi:ss
  • Missing values: None specified
PRESSURE
  • Label:
  • Definition: The recorded pressure in decibars,
  • Type: Physical quantity
  • Unit: decibar
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
DEPTH
  • Label: Depth (m)
  • Definition: Depth at which sample was drawn from lake
  • Type: Physical quantity
  • Unit: meter
  • Maximum: 30
  • Minimum: 0
  • Precision: 1
  • Missing values: None specified
PAR
  • Label:
  • Definition: Photosynthetically active radiation
  • Type: Physical quantity
  • Unit: microEinsteins/m^2/second
  • Maximum: 700
  • Minimum: 0
  • Precision: 0.001
  • Missing values:
    • Null = see comments column note

...or query the data clicking the:

Variables: 

DATASET_CODE
  • Label:
  • Definition: A code to ID the data container.
  • Type: Nominal
  • Missing values: None specified
LOCATION_NAME
  • Label:
  • Definition: The lake where data was collected
  • Type: Nominal
  • Missing values: None specified
LOCATION CODE
  • Label:
  • Definition: The Lake code, according to the MCM LTER program.
  • Type: Nominal
  • Missing values: None specified
DATE
  • Label:
  • Definition: Date when data point was collected
  • Type: Date/time
  • Date format: MM/DD/YYYY
  • Missing values: None specified
TIME
  • Label:
  • Definition: Time when sample was collected
  • Type: Date/time
  • Date format: HH24:Mi:SS
  • Missing values: None specified
PRESSURE
  • Label:
  • Definition: The recorded pressure in decibars,
  • Type: Physical quantity
  • Unit: decibar
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
DEPTH
  • Label: Depth (m)
  • Definition: Depth at which sample was drawn from lake
  • Type: Physical quantity
  • Unit: meter
  • Maximum: 30
  • Minimum: 0
  • Precision: 1
  • Missing values: None specified
PAR
  • Label:
  • Definition: Photosynthetically active radiation
  • Type: Physical quantity
  • Unit: microEinsteins/m^2/second
  • Maximum: 700
  • Minimum: 0
  • Precision: 0.001
  • Missing values:
    • Null = see comments column note

DOI: 

10.6073/pasta/e4dc33368edcd19fade0e4edbd8f77fe

Short name: 

LIMNO_ALPS_PAR

Data set ID: 

304
People

Owner/Creator: 

Contact: 

Additional Project roles: 

Field Crew
Field Crew
Field Crew
Field Crew
Lab Crew
Lab Crew
Data Manager