Lake Bonney Autonomous Lake Profiler and Samplers (ALPS): Conductivity, Temperature, and Pressure

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 vertical profile of conductivity, temperature, and pressure in Lake Bonney.

Date Range: 

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

Details about the spreadsheet containing the Limnology ALPS endcap data, such as parameters definitions, units used, missing values and the likes.

Variables: 

DATASET_CODE
  • Label:
  • Definition: DATASET_CODE
  • Type: Nominal
  • Missing values: None specified
LOCATION_NAME
  • Label:
  • Definition: LOCATION_NAME
  • Type: Nominal
  • Missing values: None specified
LOCATION CODE
  • Label:
  • Definition: LOCATION CODE, in this case, it is Bonw20
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date and time when this data point was collected
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:Mi:ss
  • Missing values: None specified
CONDUCTIVITY
  • Label:
  • Definition: Conductivity of water at specific depth
  • Type: Physical quantity
  • Unit: mmho/cm
  • Maximum: 900
  • Minimum: 4
  • Precision: 1
  • Missing values: None specified
TEMPERATURE
  • Label:
  • Definition: Water Temperature at specific depth
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.0001
  • Missing values: None specified
PRESSURE
  • Label:
  • Definition: Pressure readings for current location of sensors
  • Type: Physical quantity
  • Unit: decibar
  • Maximum: 45
  • Minimum: 0
  • Precision: 0.01
  • Missing values: None specified
DISSOLVED OXYGEN
  • Label:
  • Definition: Dissolved Oxygen Concentration at specific depth
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 17
  • Minimum: 0
  • Precision: .01
  • Missing values:
    • NA = Out of range

Details about the spreadsheet containing the Limnology ALPS endcap data at East Bonney, such as parameters definitions, units used, missing values and the likes.

Variables: 

DATASET_CODE
  • Label:
  • Definition: DATASET_CODE
  • Type: Nominal
  • Missing values: None specified
LOCATION_NAME
  • Label:
  • Definition: LOCATION_NAME
  • Type: Nominal
  • Missing values: None specified
LOCATION CODE
  • Label:
  • Definition: LOCATION CODE, in this case, it is Bonw20
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date and time when this data point was collected
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:Mi:ss
  • Missing values: None specified
CONDUCTIVITY
  • Label:
  • Definition: Conductivity of water at specific depth
  • Type: Physical quantity
  • Unit: mmho/cm
  • Maximum: 900
  • Minimum: 4
  • Precision: 1
  • Missing values: None specified
TEMPERATURE
  • Label:
  • Definition: Water Temperature at specific depth
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.0001
  • Missing values: None specified
PRESSURE
  • Label:
  • Definition: Pressure readings for current location of sensors
  • Type: Physical quantity
  • Unit: decibar
  • Maximum: 45
  • Minimum: 0
  • Precision: 0.01
  • Missing values: None specified
DISSOLVED OXYGEN
  • Label:
  • Definition: Dissolved Oxygen Concentration at specific depth
  • Type: Physical quantity
  • Unit: milligramsPerLiter
  • Maximum: 17
  • Minimum: 0
  • Precision: .01
  • Missing values:
    • NA = Out of range

DOI: 

10.6073/pasta/0f0240b0fab4543c6e773f3543656d48

Short name: 

ALPS_ENDCAP

Data set ID: 

302
People

Owner/Creator: 

Cristina Takacs-Vesbach

Contact: 

Additional Project roles: 

Field Crew
Field Crew
Field Crew
Field Crew
Data Manager