Observing details at the Otter
Valley Weather Station
Daily at 09:00 (GMT & BST)
Readings are taken manually from Met Office sheathed minimum and
maximum thermometers housed in a Stevenson Screen positioned
1.25 metres above grass. These are
wet & dry bulb hygrometer gives humidity readings, these are
noted and relative humidity is calculated using a slide rule or
standard 5" Casella rain gauge is checked for rainfall during
the last 24 hours.
A pressure reading is taken from a digital barometer.
minimum overnight grass temperature is noted and the
Readings are taken using soil thermometers at depth of 10, 30 & 100
Daily at 22:00 (GMT & BST).
reading is taken of the total sunshine for the day and the
display reset to zero. Also one minute interval data sets are
produced via an ADC-16 data logger which are uploaded to a
computer and total sunshine is calculated by using a
Data from a Davis Vantage Pro+ 2 Automatic Weather Station (AWS) is uploaded to a
computer and incorporated into a spreadsheet along with the
manual recordings made at 09:00 & 22:00 on that day. The AWS
provides continuous 5 minute data sets for temperature,
rainfall, wind speed and direction, humidity, dew point, UV,
solar radiation and air
pressure, grass and soil temperatures.
the weather monitoring data collected is then used to produce a
monthly report which is submitted to the Climate Observers Link
and also uploaded to this website.