2012_GS_ITEX_LC_ParameterSummary_csv

Summary of measured and modeled light curve parameters for diffuse, direct, and intermediate light curves for 14 whole-canopy 1mx1m plots sampled near the shrub LTER sites at Toolik Field Station, Alaska, summer 2012.

Variables

YEAR
  • Label: YEAR
  • Definition: year of measurement
  • Type: Date/time
  • Date format: YYYY
  • Missing values:
    • #N/A = Missing or Not Measured
DATE
  • Label: DATE
  • Definition: date of measurement
  • Type: Date/time
  • Date format: dd-mmm-yy
  • Missing values:
    • #N/A = Missing or Not Measured
SITE
  • Label: SITE
  • Definition: Toolik
  • Type: Nominal
  • Missing values: None specified
GROUP
  • Label: GROUP
  • Definition: Measurement location in relation to Toolik Lake LTER Shrub plots; In vicinity of Block1 =Upland, IVO Block 2 =Outlet
  • Type: Nominal
  • Missing values: None specified
PLOT
  • Label: PLOT
  • Definition: Individual plot identifier
  • Type: Nominal
  • Missing values: None specified
TREAT
  • Label: TREAT
  • Definition: none or fertilised annually (FERT) (with N and P)
  • Type: Nominal
  • Missing values: None specified
PLOT SIZE
  • Label: PLOT SIZE
  • Definition: 1m x 1m chamber size
  • Type: Nominal
  • Missing values: None specified
PHASE
  • Label: PHASE
  • Definition: Measurement series (round of measurements within each year) ; not used in this dataset
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
CURVE ID
  • Label: CURVE ID
  • Definition: Light curve identifier
  • Type: Nominal
  • Missing values: None specified
AVG TIME OF MEASUREMENT
  • Label: AVG TIME OF MEASUREMENT
  • Definition: avg time light curve taken
  • Type: Date/time
  • Date format: HH24:Mi:SS
  • Missing values:
    • #N/A = Missing or Not Measured
NDVI
  • Label: NDVI
  • Definition: NDVI of flux plot
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Pmax
  • Label: Pmax
  • Definition: light saturated photosynthesis (umol PAR per meter squared ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
K
  • Label: K
  • Definition: half saturation constant (umol PAR per umol CO2)
  • Type: Physical quantity
  • Unit: micromolePerMicromole
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
AVG Measured Re
  • Label: AVG Measured Re
  • Definition: measured ecosystem respiration (umol CO2 per meter square ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Eo
  • Label: Eo
  • Definition: ecosystem light use efficiency (umol CO2 per umol PAR)
  • Type: Physical quantity
  • Unit: micromolePerMicromole
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LCP
  • Label: LCP
  • Definition: ecosystem light compensation point (umol PAR per meter squared ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
AVG CH AIRTEMP
  • Label: AVG CH AIRTEMP
  • Definition: average chamber air temp during measurment (deg Celsius)
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
MAX PAR
  • Label: MAX PAR
  • Definition: maximum ambient PAR at which a flux measurement is taken for that light curve (umol PAR per meter squared per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
GPP600
  • Label: GPP600
  • Definition: Gross primary productivity at a PPFD of 600 ╬╝mol m-2 s-1 (umol CO2 per meter squared ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
AVG BF3 TOT IRRAD
  • Label: AVG BF3 TOT IRRAD
  • Definition: Average total irradiation measured with DeltaT Beam Fraction sensor (umol PAR per meter squared ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
AVG BF3 DIFFUSE IRRAD
  • Label: AVG BF3 DIFFUSE IRRAD
  • Definition: Average total diffuse light measured with DeltaT Beam Fraction sensor (umol diffuse PAR per meter squared ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
AVG DIRECT:DIFFUSE LIGHT FRACTION
  • Label: AVG DIRECT:DIFFUSE LIGHT FRACTION
  • Definition: Average diffuse light divided by total irradiance (umol diffuse PAR per umol total PAR)
  • Type: Physical quantity
  • Unit: micromolePerMicromole
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
STDEV BF3 TOT IRRAD
  • Label: STDEV BF3 TOT IRRAD
  • Definition: Standard deviation of total irradiation measured with DeltaT Beam Fraction sensor (umol PAR per meter squared ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
STDEV BF3 DIFFUSE IRRAD
  • Label: STDEV BF3 DIFFUSE IRRAD
  • Definition: Standard deviation total diffuse light measured with DeltaT Beam Fraction sensor (umol diffuse PAR per meter squared ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
STDEV DIRECT:DIFFUSE LIGHT FRACTION
  • Label: STDEV DIRECT:DIFFUSE LIGHT FRACTION
  • Definition: Standard deviation diffuse light divided by total irradiance (umol diffuse PAR per umol total PAR)
  • Type: Physical quantity
  • Unit: micromolePerMicromole
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
DOM VEG
  • Label: DOM VEG
  • Definition: Dominant canopy vegetation
  • Type: Nominal
  • Missing values: None specified
DIRECT LAI-5cm
  • Label: DIRECT LAI-5cm
  • Definition: LAI estimate taken under DIRECT light at 5cm from ground (squared meter leaf per square meter ground)
  • Type: Physical quantity
  • Unit: meterSquaredPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
DIFFUSE LAI-5cm
  • Label: DIFFUSE LAI-5cm
  • Definition: LAI estimate taken under DIFFUSE light at 5cm from ground (squared meter leaf per square meter ground)
  • Type: Physical quantity
  • Unit: meterSquaredPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
AVG Modeled Re
  • Label: AVG Modeled Re
  • Definition: modelled ecosystem respiration (umol CO2 per square meter ground per second)
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
COMMENTS
  • Label: COMMENTS
  • Definition: Comments on NDVI/Unispec measurements
  • Type: Nominal
  • Missing values: None specified
Data Source Details

Header lines: 

1

Orientation: 

Column

Quote character: 

"

Field delimiter: 

,

Record delimiter: 

\r\n

Number of Records: 

34