2011-Present_MAT_HourlyWeather_csv

Hourly weather data from the Arctic LTER Moist Acidic Tussock Experimental plots from 2011 to present, Toolik Filed Station, North Slope, Alaska.

Variables

DATE
  • Label: DATE
  • Definition: Date
  • Type: Date/time
  • Date format: dd-mmm-yyyy hh:mm
  • Missing values: None specified
Month
  • Label: Month
  • Definition: Month in integer form
  • Type: Date/time
  • Date format: mm
  • Missing values: None specified
DAYS
  • Label: DAYS
  • Definition: Julian day plus fraction of day
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ID
  • Label: ID
  • Definition: The data logger program output step number
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = missing value or error
YEAR
  • Label: YEAR
  • Definition: Year
  • Type: Date/time
  • Date format: yyyy
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
JULIAN
  • Label: JULIAN
  • Definition: Julian date
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
HOUR
  • Label: HOUR
  • Definition: Time - Alaska standard time 2400 format
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
CTEMP 3M
  • Label: CTEMP 3M
  • Definition: Temperature at 3 m height in the control plot
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
GTEMP
  • Label: GTEMP
  • Definition: Average temperature in greenhouse - after 1994 this is a single measurement from one sensor in the center of the greenhouse
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
STEMP
  • Label: STEMP
  • Definition: Average temperature in the shade house - After 1994 this is a single measurement from one sensor in the center of the shade house
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
CRH 3M
  • Label: CRH 3M
  • Definition: Relative humidity in the control plot at 3 m height
  • Type: Physical quantity
  • Unit: percent
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
GRH
  • Label: GRH
  • Definition: Average relative humidity in the greenhouse - note that after 1994 this is a single measurement taken from the middle of the greenhouse
  • Type: Physical quantity
  • Unit: percent
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
SHRH
  • Label: SHRH
  • Definition: Average relative humidity in the shade house - note that after 1994 this is a single measurement taken from the middle of the shade house
  • Type: Physical quantity
  • Unit: percent
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
PYRANOMETER
  • Label: PYRANOMETER
  • Definition: global solar radiation (sun plus sky), average over measurement interval (kw/m-2/s-1)
  • Type: Physical quantity
  • Unit: kilowattPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
CQUANT
  • Label: CQUANT
  • Definition: Control Average Photosynthetic Active Radiation (PAR) over an hour as measured with a LiCor Quantum sensor
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
GQUANT
  • Label: GQUANT
  • Definition: Green house Average Photosynthetic Active Radiation (PAR) over an hour as measured with a LiCor Quantum sensor
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
SQUANT
  • Label: SQUANT
  • Definition: Shade house Average Photosynthetic Active Radiation (PAR) over an hour as measured with a LiCor Quantum sensor
  • Type: Physical quantity
  • Unit: micromolePerMeterSquaredPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
WIND SPEED
  • Label: WIND SPEED
  • Definition: Wind speed at 3 meters
  • Type: Physical quantity
  • Unit: meterPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
WIND DIR
  • Label: WIND DIR
  • Definition: Wind direction at 3 meters
  • Type: Physical quantity
  • Unit: degree
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
WIND DIR STD
  • Label: WIND DIR STD
  • Definition: Wind vector direction standard deviation
  • Type: Physical quantity
  • Unit: degree
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
RAIN
  • Label: RAIN
  • Definition: Rainfall summer only
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
VAPOR PRES 3M
  • Label: VAPOR PRES 3M
  • Definition: Vapor pressure for Control temperature/relative humidity at 3 meters. Formula: If Air Temp > 0 then (CRH 3M/100) * 6.1121 * exp(17.368 * CTEMP 3M/(238.88 + CTEMP 3M)) If Air Temp < 0 then (CRH 3M/100) * 6.1121 * exp(17.966 * CTEMP 3M/(238.88 + CTEMP 3M)) (Buck 1981).
  • Type: Physical quantity
  • Unit: millibar
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
VAPOR PRESS SH
  • Label: VAPOR PRESS SH
  • Definition: Vapor pressure for Shade house temperature/relative humidity at 3 meters. Formula: If Air Temp > 0 then (CRH 3M/100) * 6.1121 * exp(17.368 * CTEMP 3M/(238.88 + CTEMP 3M)) If Air Temp < 0 then (CRH 3M/100) * 6.1121 * exp(17.966 * CTEMP 3M/(238.88 + CTEMP 3M)) (Buck 1981).
  • Type: Physical quantity
  • Unit: millibar
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
PYR J CM2 HR
  • Label: PYR J CM2 HR
  • Definition: Total joules/cm2 over an hour (PYRANOMETER * .3600 jcm2 * 1000 watt/Kwatt)
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • . = sensor not measured
    • #N/A = missing value or error
COMMENTS
  • Label: COMMENTS
  • Definition: Additional comments
  • 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: 

40101