University of Reading METFiDAS weather observations

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Text information: Current observations
Recent - graphical: Air temperature and humidity Rainfall
Precipitation rate Present weather and visibility
Pressure Wind
Surface temperatures Soil temperatures under grass
Sunshine Cloud base
Radiation Up/down-ward radiation fluxes
Atmospheric electricity Point discharge current
Other time periods graphical: The past 1-2 days The past week
Please note: more observation types will follow soon.
Back to the main Observatory Page

Air temperature and humidity

Key:
Tdry - air (dry bulb) temperature (°C);
Tdew - dew point temperature (°C);
RH - relative humidity (%)

Rainfall

Key:
5minRain - 5-minute rainfall totals (mm);
Daily rain - accumulated rainfall from 0000 UTC (mm)

Precipitation rate

Key:
ppnRate - precipitation rate every 5 minutes (mm/h);

Present weather and visibility

Key:
Visibility - every 5 minutes (km);
Plotted symbols - Automatic Weather Station significant weather symbol every 5 minutes;
Key to plotted symbols (opens in new tab)

Pressure

Key:
Pmsl - mean sea level pressure (hPa)

Wind

Key:
U10 - 10-minute mean wind speed at 5-minute intervals at 10 metres (m/s);
U10max - maximum 3-second gust at 5-minute intervals at 10 metres (m/s);
Dirn10 - 10-minute mean wind direction at 5-minute intervals at 10 metres (deg);
Wind direction shown as '0 degrees' when the wind is calm

Surface temperatures

Key:
Tgrass - temperature at grass-tip level (°C);
Tconc - temperature of the concrete slab surface (°C);
Tsoil - temperature of a bare soil surface (°C);

Soil temperatures under grass

Key:
TSoil - soil temperature at a depth of 5, 10, 20, 30, 50 or 100 cm (°C);

Sunshine

Key:
5minSun - 5-minute sunshine totals (min);
Daily sun - accumulated sunshine from 0000 UTC (h)

Cloud base height

Key:
Base1 - Ceilometer-measured height of lowest cloud layer (m)

Radiation

Key:
Sg - Global solar (shortwave) irradiance (W/m2);
Rn - Net irradiance (W/m2);
G - Ground heat flux density (W/m2)

Up/down-ward radiation fluxes

Key:
LWup - Longwave upward flux (W/m2);
LWdn - Longwave downward flux (W/m2);
SWup - Shortwave upward flux (W/m2);
SWdn - Shortwave downward flux (W/m2)

Atmospheric electricity

Key:
PG - Potential gradient (V/m);
iCP - Corrugated plate vertical atmospheric current (pA);
iFP - Flat plate vertical atmospheric current (pA)

Point discharge current

Key:
PDC - Amplitude of the positive and negative currents (A);

Weather conditions at the University of Reading over the past 1-2 days can be found here.
Weather conditions at the University of Reading over the past week can be found here.