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California Weather Data: Station Description

Description of ANGWIN.A (CIMIS #79, Angwin)

Network:

CIMIS — California Irrigation Management Information System

Observer

RANCHO LA JOTA - DWR SOUTHERN DISTRICT

Location

County: Napa    Nearest City: St. Helena
Latitude: 38 deg 33 min N    Longitude: 122 deg 25 min W    Elevation: 1720 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: May 11, 1989  /  December 27, 1996
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: none


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 OAKVILLE.A   /  STHELENA.C
Averages Station Backup: STHELENA.C

80% of possible values are stored for the period 05/11/1989 to 08/13/1996.

Reference Evapotranspiration
Variable or Sensor: Calculated from CIMIS hourly values.

89% of possible values are stored for the period 05/11/1989 to 12/26/1996.

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

42% of possible values are stored for the period 02/01/1990 to 08/11/1996.

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)

100% of possible values are stored for the period 05/11/1989 to 12/26/1996.

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
Averages Station Backup: OAKVILLE.A

94% of possible values are stored for the period 05/11/1989 to 08/15/1996.

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)
Averages Station Backup: OAKVILLE.A

90% of possible values are stored for the period 05/11/1989 to 08/13/1996.

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

94% of possible values are stored for the period 05/11/1989 to 08/17/1996.

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