Chlorophyll-a concentrations in discrete water column samples collected from lakes in the McMurdo Dry Valleys, Antarctica (1993-2020, ongoing)

Summary

Abstract: 

An important part of the McMurdo Long Term Ecological Research (LTER) project is monitoring of spatial and temporal patterns, and processes that control primary production in perennial ice-covered lakes. This data package addresses this core area of research by quantifying chlorophyll-a concentrations within specific depths along the water column of several lakes located across the McMurdo Dry Valleys region of Antarctica.

Date Range: 

October 27, 1993 to January 11, 2020
Data Citation
Priscu, J. 2021. Chlorophyll-a concentrations in discrete water column samples collected from lakes in the McMurdo Dry Valleys, Antarctica (1993-2020, ongoing). Environmental Data Initiative. DOI: 10.6073/pasta/987ffa970e38a36e741d563428ebffa5. Dataset accessed 23 October 2021.
Dataset(s)

Variables (click to expand): 

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: Limno Run
  • Definition: Code for lake's sampling location and date
  • 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 ice from which sample was drawn
  • Type: Physical quantity
  • Unit: meter
  • Maximum: 60
  • Minimum: 1
  • Precision: 1
  • Missing values: None specified
CHL (ug chl-a/l)
  • Label:
  • Definition: Chlorophyll a concentration, as averaged from 2 replicates, and measured by Turner Designs Fluorometer
  • Type: Physical quantity
  • Unit: ugChlorophyll-a/liter
  • Maximum: 25
  • Minimum: -1
  • Precision: 0.001
  • Missing values:
    • Null = See Comments
CHL COMMENTS
  • 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 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: 

Short name: 

limnchla

Dataset ID: 

44
People

Principal Investigator(s): 

Contact: 

Associated Personnel: 

Field Technician
Data Manager
Former Field Crew
Former Data Manager