Glacier Snow Densities

Summary

Abstract: 

As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor mass balance and meltwater flow from the Taylor Valley glaciers. This dataset contains snow density measurements determined at each stake with snow present on the glaciers of Taylor Valley. Included here for each stake are the snow thickness and density for each layer and the average density for each pit.

Date Range: 

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

...or query the data clicking the:

Variables: 

DATASET CODE
  • Label:
  • Definition: Code representing glacier snow density dataset
  • Type: Nominal
  • Missing values: None specified
GLACIER
  • Label:
  • Definition: NAME OF GLACIER WHERE MEASUREMENT WAS MADE
  • Type: Nominal
  • Missing values: None specified
STAKE
  • Label:
  • Definition: UNIQUE NUMBER FOR EACH STAKE ON GLACIER
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: DATE OF DATA MEASUREMENT
  • Type: Date/time
  • Date format: MM/DD/YYYY
  • Missing values: None specified
LAYER
  • Label:
  • Definition: Unit of snow identified as distinct by hardness from other units in a snow pit.
  • Type: Nominal
  • Missing values: None specified
THICKNESS
  • Label:
  • Definition: Height of distinct layer in snow pit
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
TOTAL_MASS
  • Label:
  • Definition: Mass of snow and bag measured by a scale in the field
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
BAG_MASS
  • Label:
  • Definition: Mass of the bag before adding snow
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
SNOW_MASS
  • Label:
  • Definition: Subtraction of the mass of the bag from the total mass
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
DENSITY
  • Label:
  • Definition: Snow mass divided by 100cm3, which the volume of the sampling tool used to extract the snow sample
  • Type: Physical quantity
  • Unit: gramsPerCubicCentimeter
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • NULL = None given
WEIGHTED_DENSITY
  • Label:
  • Definition: the density times the thickness of the layer, which is used to weight the density if there are more than one layer in the pit
  • Type: Physical quantity
  • Unit: gramsPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
AVG_SNOWPACK_DENSITY
  • Label:
  • Definition: the sum of the weighted densities dived by the sum of the thickness of all the layers.
  • Type: Physical quantity
  • Unit: gramsPerCubicCentimeter
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.1
  • Missing values: None specified
SDC
  • Label:
  • Definition: (snow density competency) - a qualitative description of how readable the sample was extracted from the snow pit. One (1) indicates that a good sample, with little snow loss was collected, 2 indicates some loss of snow, while 3 indicates that obtaining a nearly complete sample was not possible due to either the lack of cohesion of the snow or the snow wasto hard to collect a sample.
  • Type: Nominal
  • Missing values: None specified
LAYER_DESCRIPTION
  • Label:
  • Definition: Field observations of the snow layer: hardness of the snow, and snow grain shapes and sizes.
  • Type: Nominal
  • Missing values: None specified
COMMENTS
  • Label:
  • Definition: Notes on snow density measurements
  • Type: Nominal
  • Missing values: None specified
GLSTKID
  • Label:
  • Definition: CODE FROM GLACIER / STAKE/ DATE OF COORDINATE MEASUREMENT (TO BE USED FOR GIS MAPPING)
  • Type: Nominal
  • Missing values: None specified
FILE NAME
  • Label:
  • Definition: RAW DATA FILE CONTAINING INFORMATION
  • Type: Nominal
  • Missing values: None specified

...or query the data clicking the:

Variables: 

DATASET CODE
  • Label:
  • Definition: Code representing glacier snow density dataset
  • Type: Nominal
  • Missing values: None specified
GLACIER
  • Label:
  • Definition: NAME OF GLACIER WHERE MEASUREMENT WAS MADE
  • Type: Nominal
  • Missing values: None specified
STAKE
  • Label:
  • Definition: UNIQUE NUMBER FOR EACH STAKE ON GLACIER
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: DATE OF DATA MEASUREMENT
  • Type: Date/time
  • Date format: MM/DD/YYYY
  • Missing values: None specified
LAYER
  • Label:
  • Definition: Unit of snow identified as distinct by hardness from other units in a snow pit.
  • Type: Nominal
  • Missing values: None specified
THICKNESS
  • Label:
  • Definition: Height of distinct layer in snow pit
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
TOTAL_MASS
  • Label:
  • Definition: Mass of snow and bag measured by a scale in the field
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
BAG_MASS
  • Label:
  • Definition: Mass of the bag before adding snow
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
SNOW_MASS
  • Label:
  • Definition: Subtraction of the mass of the bag from the total mass
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
DENSITY
  • Label:
  • Definition: Snow mass divided by 100cm3, which the volume of the sampling tool used to extract the snow sample
  • Type: Physical quantity
  • Unit: gramsPerCubicCentimeter
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • NULL = None given
WEIGHTED_DENSITY
  • Label:
  • Definition: the density times the thickness of the layer, which is used to weight the density if there are more than one layer in the pit
  • Type: Physical quantity
  • Unit: gramsPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
AVG_SNOWPACK_DENSITY
  • Label:
  • Definition: the sum of the weighted densities dived by the sum of the thickness of all the layers.
  • Type: Physical quantity
  • Unit: gramsPerCubicCentimeter
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.1
  • Missing values: None specified
SDC
  • Label:
  • Definition: (snow density competency) - a qualitative description of how readable the sample was extracted from the snow pit. One (1) indicates that a good sample, with little snow loss was collected, 2 indicates some loss of snow, while 3 indicates that obtaining a nearly complete sample was not possible due to either the lack of cohesion of the snow or the snow wasto hard to collect a sample.
  • Type: Nominal
  • Missing values: None specified
LAYER_DESCRIPTION
  • Label:
  • Definition: Field observations of the snow layer: hardness of the snow, and snow grain shapes and sizes.
  • Type: Nominal
  • Missing values: None specified
COMMENTS
  • Label:
  • Definition: Notes on snow density measurements
  • Type: Nominal
  • Missing values: None specified
GLSTKID
  • Label:
  • Definition: CODE FROM GLACIER / STAKE/ DATE OF COORDINATE MEASUREMENT (TO BE USED FOR GIS MAPPING)
  • Type: Nominal
  • Missing values: None specified
FILE NAME
  • Label:
  • Definition: RAW DATA FILE CONTAINING INFORMATION
  • Type: Nominal
  • Missing values: None specified

...or query the data clicking the:

Variables: 

DATASET CODE
  • Label:
  • Definition: Code representing glacier snow density dataset
  • Type: Nominal
  • Missing values: None specified
GLACIER
  • Label:
  • Definition: NAME OF GLACIER WHERE MEASUREMENT WAS MADE
  • Type: Nominal
  • Missing values: None specified
STAKE
  • Label:
  • Definition: UNIQUE NUMBER FOR EACH STAKE ON GLACIER
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: DATE OF DATA MEASUREMENT
  • Type: Date/time
  • Date format: MM/DD/YYYY
  • Missing values: None specified
LAYER
  • Label:
  • Definition: Unit of snow identified as distinct by hardness from other units in a snow pit.
  • Type: Nominal
  • Missing values: None specified
THICKNESS
  • Label:
  • Definition: Height of distinct layer in snow pit
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
TOTAL_MASS
  • Label:
  • Definition: Mass of snow and bag measured by a scale in the field
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
BAG_MASS
  • Label:
  • Definition: Mass of the bag before adding snow
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
SNOW_MASS
  • Label:
  • Definition: Subtraction of the mass of the bag from the total mass
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
DENSITY
  • Label:
  • Definition: Snow mass divided by 100cm3, which the volume of the sampling tool used to extract the snow sample
  • Type: Physical quantity
  • Unit: gramsPerCubicCentimeter
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • NULL = None given
WEIGHTED_DENSITY
  • Label:
  • Definition: the density times the thickness of the layer, which is used to weight the density if there are more than one layer in the pit
  • Type: Physical quantity
  • Unit: gramsPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
AVG_SNOWPACK_DENSITY
  • Label:
  • Definition: the sum of the weighted densities dived by the sum of the thickness of all the layers.
  • Type: Physical quantity
  • Unit: gramsPerCubicCentimeter
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.1
  • Missing values: None specified
SDC
  • Label:
  • Definition: (snow density competency) - a qualitative description of how readable the sample was extracted from the snow pit. One (1) indicates that a good sample, with little snow loss was collected, 2 indicates some loss of snow, while 3 indicates that obtaining a nearly complete sample was not possible due to either the lack of cohesion of the snow or the snow wasto hard to collect a sample.
  • Type: Nominal
  • Missing values: None specified
LAYER_DESCRIPTION
  • Label:
  • Definition: Field observations of the snow layer: hardness of the snow, and snow grain shapes and sizes.
  • Type: Nominal
  • Missing values: None specified
COMMENTS
  • Label:
  • Definition: Notes on snow density measurements
  • Type: Nominal
  • Missing values: None specified
GLSTKID
  • Label:
  • Definition: CODE FROM GLACIER / STAKE/ DATE OF COORDINATE MEASUREMENT (TO BE USED FOR GIS MAPPING)
  • Type: Nominal
  • Missing values: None specified
FILE NAME
  • Label:
  • Definition: RAW DATA FILE CONTAINING INFORMATION
  • Type: Nominal
  • Missing values: None specified

...or query the data clicking the:

Variables: 

DATASET CODE
  • Label:
  • Definition: Code representing glacier snow density dataset
  • Type: Nominal
  • Missing values: None specified
GLACIER
  • Label:
  • Definition: NAME OF GLACIER WHERE MEASUREMENT WAS MADE
  • Type: Nominal
  • Missing values: None specified
STAKE
  • Label:
  • Definition: UNIQUE NUMBER FOR EACH STAKE ON GLACIER
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: DATE OF DATA MEASUREMENT
  • Type: Date/time
  • Date format: MM/DD/YYYY
  • Missing values: None specified
LAYER
  • Label:
  • Definition: Unit of snow identified as distinct by hardness from other units in a snow pit.
  • Type: Nominal
  • Missing values: None specified
THICKNESS
  • Label:
  • Definition: Height of distinct layer in snow pit
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
TOTAL_MASS
  • Label:
  • Definition: Mass of snow and bag measured by a scale in the field
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
BAG_MASS
  • Label:
  • Definition: Mass of the bag before adding snow
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
SNOW_MASS
  • Label:
  • Definition: Subtraction of the mass of the bag from the total mass
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
DENSITY
  • Label:
  • Definition: Snow mass divided by 100cm3, which the volume of the sampling tool used to extract the snow sample
  • Type: Physical quantity
  • Unit: gramsPerCubicCentimeter
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • NULL = None given
WEIGHTED_DENSITY
  • Label:
  • Definition: the density times the thickness of the layer, which is used to weight the density if there are more than one layer in the pit
  • Type: Physical quantity
  • Unit: gramsPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • NULL = None given
AVG_SNOWPACK_DENSITY
  • Label:
  • Definition: the sum of the weighted densities dived by the sum of the thickness of all the layers.
  • Type: Physical quantity
  • Unit: gramsPerCubicCentimeter
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.1
  • Missing values: None specified
SDC
  • Label:
  • Definition: (snow density competency) - a qualitative description of how readable the sample was extracted from the snow pit. One (1) indicates that a good sample, with little snow loss was collected, 2 indicates some loss of snow, while 3 indicates that obtaining a nearly complete sample was not possible due to either the lack of cohesion of the snow or the snow wasto hard to collect a sample.
  • Type: Nominal
  • Missing values: None specified
LAYER_DESCRIPTION
  • Label:
  • Definition: Field observations of the snow layer: hardness of the snow, and snow grain shapes and sizes.
  • Type: Nominal
  • Missing values: None specified
COMMENTS
  • Label:
  • Definition: Notes on snow density measurements
  • Type: Nominal
  • Missing values: None specified
GLSTKID
  • Label:
  • Definition: CODE FROM GLACIER / STAKE/ DATE OF COORDINATE MEASUREMENT (TO BE USED FOR GIS MAPPING)
  • Type: Nominal
  • Missing values: None specified
FILE NAME
  • Label:
  • Definition: RAW DATA FILE CONTAINING INFORMATION
  • Type: Nominal
  • Missing values: None specified

DOI: 

10.6073/pasta/cd60344cedd9d1f78012becaeaf3b1c5

Short name: 

glsnwdns

Data set ID: 

2007
People

Owner/Creator: 

Contact: 

Additional Project roles: 

Associated Researcher
Field Crew
Data Manager