STREAM_ISOTOPES_RCVG

File: 

STREAM_ISOTOPES_RCVG.csv (11.88 KB)

...or query the dataset by variables and dates of interest:

Variables
DATASET_CODE
  • Label: Dataset code
  • Definition: DATASET_CODE
  • Type: Nominal
  • Missing values: None specified
STREAM
  • Label: Stream
  • Definition: Stream name in the Lake Fryxell Basin, Taylor Valley, Antarctica.
  • Type: Nominal
  • Missing values: None specified
DATE_SAMPLED
  • Label: Date sampled
  • Definition: Date samples were collected.
  • Type: Date/time
  • Date format: MM/DD/YYYY
  • Missing values: None specified
TIME_SAMPLED
  • Label: Time sampled
  • Definition: Time a sample was taken (for POM only). Expressed in NZST (daylight savings time is observed).
  • Type: Date/time
  • Date format: HHMM
  • Missing values:
    • BLANK = No data
TRANSECT
  • Label: Transect
  • Definition: The established MCM LTER transect that samples were taken from.
  • Type: Nominal
  • Missing values: None specified
SAMPLE_TYPE
  • Label: Sample type
  • Definition: Type of sample. Includes the three mat types (i.e., black, green, orange) as well as POM (particulate organic matter).
  • Type: Nominal
  • Missing values: None specified
DISTANCE
  • Label: Distance
  • Definition: Distance of a given transect from the Von Guerard Glacier as estimated using Google Earth.
  • Type: Physical quantity
  • Unit: kilometer
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
D13C
  • Label: d13C
  • Definition: Measure of the ratio of 13C:12C in standard delta notation, expressed relative to universal isotope standards (Pee Dee Belemnite) in parts per thousand (per mil).
  • Type: Physical quantity
  • Unit: perMil
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = No data
D15N
  • Label: d15N
  • Definition: Measure of the ratio of 15N:14N in standard delta notation, expressed relative to universal isotope standards (atmospheric N2) in parts per thousand (per mil).
  • Type: Physical quantity
  • Unit: perMil
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = No data
CN
  • Label: C:N
  • Definition: Molar ratio of carbon (C) to nitrogen (N). Blank cells indicate missing values.
  • Type: Nominal
  • Missing values: None specified
CP
  • Label: C:P
  • Definition: Molar ratio of carbon (C) to phosphorus (P). Blank cells indicate missing values.
  • Type: Nominal
  • Missing values: None specified
NP
  • Label: N:P
  • Definition: Molar ratio of nitrogen (N) to phosphorus (P). Blank cells indicate missing values.
  • Type: Nominal
  • Missing values: None specified
AFDM
  • Label: Ash-free dry mass
  • Definition: The mass of the mat sample lost following ignition per unit area.
  • Type: Physical quantity
  • Unit: milligramsPerCentimeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = No data
CHLA
  • Label: Chlorophyll-a
  • Definition: Quantity of measured chlorophyll-a pigment per unit area.
  • Type: Physical quantity
  • Unit: microgramsPerCentimeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • BLANK = No data
AI
  • Label: Autotrophic index
  • Definition: The ratio of chlorophyll-a to ash-free dry mass. Blank cells indicate missing values.
  • Type: Nominal
  • Missing values: None specified
Data Source Details

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