Lakes Vertical Profile of Photosynthetic Active Radiation

Summary

Abstract: 

As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, lakes were monitored for photosynthetic active radiation (PAR) levels. This data set exemplifies the vertical profile of underwater PAR profiles in perennial ice covered lakes and ambient PAR measured at the air-ice interface. Profile data can be used to calculate extinction coefficients for the water column and ice layer.

Date Range: 

Friday, January 1, 1993 to Wednesday, December 31, 2014

...or query the data clicking the:

Variables: 

DATASET_CODE
  • Label:
  • Definition: Code to ID the data table
  • 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
LIMNO_RUN
  • Label:
  • Definition: Code for lake's sampling location and date
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label: Collection Date
  • 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 at which measurement was taken.
  • Type: Physical quantity
  • Unit: meter
  • Maximum: 60
  • Minimum: 1
  • Precision: 1
  • Missing values: None specified
UwPAR (umol photons/m2/s)
  • Label:
  • Definition: Underwater photosynthetically active radiation
  • Type: Physical quantity
  • Unit: umolphotons/m2/second
  • Maximum: 100
  • Minimum: 0
  • Precision: 0.01
  • Missing values:
    • Null = None given
AMBIENT PAR umol photons/m2/s
  • Label:
  • Definition: Ambient photosynthetically active radiation
  • Type: Physical quantity
  • Unit: umolphotons/m2/second
  • Maximum: 2000
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
PAR COMMENTS (PROFILE)
  • Label:
  • Definition: Helpful hints about the 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 Level
  • Type: Physical quantity
  • Unit: meter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified

DOI: 

10.6073/pasta/d9483425850a62e138cdc9a70a6b660c

Short name: 

parpro

Data set ID: 

46
People

Owner/Creator: 

Contact: 

Additional Project roles: 

Field Crew
Data Manager