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 11/22/2009.

Reference Evapotranspiration

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

37% 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

96% of possible values are stored for the period 09/23/1989 to 11/22/2009.

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 11/22/2009.

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

96% of possible values are stored for the period 09/23/1989 to 11/22/2009.

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 11/22/2009.

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 11/22/2009.

Top of page

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. web template revised: November 24, 2009 Contact webmaster.