The graphic shows live weather data at Littlehempston, Devon, UK updated at 10 second intervals.
Soil temperature is 0.5m deep inside the forest garden greenhouse.
Weather for last 24 hours
Shows current weather data at Littlehempston, Devon, UK at 10 minute intervals.
If you move your mouse over the graph you’ll see time and values indicated. To see this data for longer timescales, click on ’10D’ (=10 days) etc. at bottom right of graph (clicking on ‘1D’ returns to today).
Temperature: shows outdoor and forest garden greenhouse indoor temperatures. You might notice sudden levelling off from rising or falling temperatures when either the ground fans start/stop or the windows open/shut.
Pressure: shows max, min and average pressure.
Rain: shows rainfall, measured in 0.2mm increments.
Wind: shows average wind speed and max gust speed in km/h.
Humidity: shows outdoor and forest garden greenhouse indoor humidity.
Solar radiation: added 13/6/2017, shows outdoor solar radiation in W/m2.
Soil temperature and moisture
Shows data for today. If you move your mouse over the graph you’ll see time and values indicated. To see this data for longer timescales, click on ’10D’ (=10 days) etc at bottom right of graph (clicking on ‘1D’ returns to today)
Soil temperature: shows temperature in the forest garden greenhouse at depths of 1.0m and 0.5m.
Soil moisture: shows moisture level (in cbars) in the forest garden greenhouse at depths of 1.0m, 0.75m, 0.5m, 0.25m.
Glasshouse air temperature: included for reference.
Water tank and fan outflow temperatures
Shows data for the last week. To see this data for different timescales, click on ‘1M’ (=1 month) etc. at bottom right of graph (clicking on ‘1D’ shows data for today)
Outside and inside temperature: shows air temperatures outside and in the forest garden greenhouse.
Outflow temperature: shows air temperature of the outflow of air from thje underground air heat storage/release system. When the ground fans are not running, this will be about the same as the inside air temperature. When the fans turn on – if the inside air temperature gets cold or hot – this will change. The difference between the inside air temperature and the outflow temperature is a measure of how much heat energy has been stored or released in the soil.
Tank temperature: Indicates temperature of the water in the permanent water wall tanks. This usually rises and falls on a daily cycle.
Daily weather data
Shows daily archived data for the last 14 days
Monthly weather data
Shows monthly archived data up until last month (note that data for December 2016 and January 2017 is incomplete as system was still being set up)