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California Weather Data: Station Description

Description of HOPLAND.A (CIMIS #85, Hopland FS)

Network:

CIMIS — California Irrigation Management Information System

Observer

UNIVERSITY OF CALIFORNIA HOPLAND FIELD STATION - DWR NORTHERN DISTRICT

Location

U.C. Hopland Field Station.
County: Mendocino    Nearest City: Hopland
Latitude: 39 deg 1 min N    Longitude: 123 deg 5 min W    Elevation: 1160 ft

Station and site characteristics

Manufacturer/model: Campbell Scientific Inc. CR-10 ( or CR-10X)
Ground cover: Irrigated grass

Available data

UC IPM database records begin/end: September 23, 1989  /  on-going
Reporting interval: Daily
Stored variables:
Air Temperature, max/min: Daily max/min measured at 1.5 m (4.92 ft).
Reference Evapotranspiration: Calculated from CIMIS hourly values.
Precipitation: Daily total measured in a 20 cm (8 in) diameter gauge.
Relative Humidity, max/min: Daily max/min relative humidity measured at 1.5 m (4.92 ft).
Soil Temperature, max/min: Daily max/min measured at a 15 cm (6 in) depth.
Solar Radiation: Daily global radiation measured by Licor pyranometer at 2 m (6.5 ft).
Wind Speed/Direction: Daily average measured at 2 m (6.5 ft).
Variables with computed averages: precip, air temp, soil temp, solar

Comments

CIMIS ceased calculating ETo for this station, 5/1/99


Details about reported variables

Air Temperature, max/min
Variable or Sensor: Daily max/min measured at 1.5 m (4.92 ft).
Height of Sensor: 1.5 m (4.92 ft)
Backup Station #1 / #2 HOPLAND2.A   /  HOPLAND.T
Averages Station Backup: HOPLAND.A

99% of possible values are stored for the period 09/23/1989 to 07/31/2015.

Reference Evapotranspiration
Variable or Sensor: Calculated from CIMIS hourly values.
Comment: No longer reported by CIMIS, effect. 5/1/99

25% of possible values are stored for the period 09/23/1989 to 03/31/1999.

Precipitation
Variable or Sensor: Daily total measured in a 20 cm (8 in) diameter gauge.
Backup Station #1 / #2 HOPLAND2.A   /  HOPLAND.T
Averages Station Backup: HOPLAND.A

97% of possible values are stored for the period 09/23/1989 to 07/31/2015.

Relative Humidity, max/min
Variable or Sensor: Daily max/min relative humidity measured at 1.5 m (4.92 ft).
Height of Sensor: 1.5 m (4.92 ft)

99% of possible values are stored for the period 09/23/1989 to 07/31/2015.

Soil Temperature, max/min
Variable or Sensor: Daily max/min measured at a 15 cm (6 in) depth.
Height of Sensor: 15 cm (6 in) depth
Backup Station #1 HOPLAND2.A
Averages Station Backup: HOPLAND.A

97% of possible values are stored for the period 09/23/1989 to 07/31/2015.

Solar Radiation
Variable or Sensor: Daily global radiation measured by Licor pyranometer at 2 m (6.5 ft).
Height of Sensor: 2 m (6.5 ft)
Backup Station #1 HOPLAND2.A
Averages Station Backup: HOPLAND.A

98% of possible values are stored for the period 09/23/1989 to 07/31/2015.

Wind Speed/Direction
Variable or Sensor: Daily average measured at 2 m (6.5 ft).
Height of Sensor: 2 m (6.5 ft)

100% of possible values are stored for the period 09/23/1989 to 07/31/2015.

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