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California Weather Data

Description of Livermore-01.P (LVM)

PestCast Network(s)

San Joaquin WEATHERNET

Location

County: Alameda    Nearest City: Livermore
Latitude: 37 deg 40 min N    Longitude: 121 deg 44 min W    Elevation: 197 ft

Station and site characteristics

Manufacturer/model: Campbell Scientific Inc. CR-10X
Crop: Grapes

Available data

UC IPM database records begin/end: August 22, 2003  /  October 18, 2009
Reporting interval: Hourly, Daily
Stored variables:
Air Temperature, max/min: HMP35C-U temp-RH probe
Air Temperature, average: HMP35C-U temp-RH probe
Air Temperature 2, average: 107-U thermistor
Chilling Hours: hours T < 45F
Dew Point Temperature: calculated from temp-RH probe
Evapotranspiration: Calculated Reference Evapotranspiration
Precipitation: TE525-L25 tipping bucket rain guage
Relative Humidity, average: HMP35C-U temp-RH probe
Solar Radiation: LI200X Silicon pyranometer
Temperature Threshold Hours: hours of T <= 32F; 70 <= T <= 85F; T > 95F
Wind Speed/Direction, average: 3001 RM Young Wind Sentry Anemometer and Vane
Wind Speed/Direction, maximum: 3001 RM Young Wind Sentry Anemometer and Vane
Variables with computed averages: none

Comments

AirAvg 2 datatype removed 7/26/05 due to cord having been cut.


Details about reported variables

Air Temperature, max/min
Variable or Sensor: HMP35C-U temp-RH probe
Sensor Setup: above the canopy with no significant obstructions
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards.
Reporting Intervals: Daily
Air Temperature, average
Variable or Sensor: HMP35C-U temp-RH probe
Sensor Setup: Above the canopy with no significant obstructions.
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards.
Reporting Intervals: Daily, Hourly
Air Temperature 2, average
Variable or Sensor: 107-U thermistor
Sensor Setup: Inside the canopy with no other significant obstructions.
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards. Sensor removed from sevice 7/26/05
Reporting Intervals: Hourly
Chilling Hours
Variable or Sensor: hours T < 45F
When Installed: 21 August 2003
Reporting Intervals: Daily
Dew Point Temperature
Variable or Sensor: calculated from temp-RH probe
When Installed: 30 January 1998
Reporting Intervals: Hourly
Evapotranspiration
Variable or Sensor: Calculated Reference Evapotranspiration
Sensor Setup: calculated
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards.
Reporting Intervals: Daily, Hourly
Precipitation
Variable or Sensor: TE525-L25 tipping bucket rain guage
Sensor Setup: Above the canopy with no significant obstructions.
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards.
Reporting Intervals: Daily, Hourly
Relative Humidity, average
Variable or Sensor: HMP35C-U temp-RH probe
Sensor Setup: Above the canopy with no significant obstructions.
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards.
Reporting Intervals: Daily, Hourly
Solar Radiation
Variable or Sensor: LI200X Silicon pyranometer
Sensor Setup: Above the canopy with no significant obstructions.
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards.
Reporting Intervals: Daily, Hourly
Temperature Threshold Hours
Variable or Sensor: hours of T <= 32F; 70 <= T <= 85F; T > 95F
When Installed: 21 August 2003
Reporting Intervals: Daily
Wind Speed/Direction, average
Variable or Sensor: 3001 RM Young Wind Sentry Anemometer and Vane
Sensor Setup: Above the canopy with no significant obstructions.
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards.
Reporting Intervals: Daily, Hourly
Wind Speed/Direction, maximum
Variable or Sensor: 3001 RM Young Wind Sentry Anemometer and Vane
Sensor Setup: Above the canopy with no significant obstructions.
When Installed: 21 August 2003
Comment: Location is surrounded by grape vineyards.
Reporting Intervals: Daily, Hourly

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