|
|
|
|
It is clear from this graph the rapidly decreasing flow produced by our springs, the only heavy rain occuring during week 12 which took a several days to percolate through the rock strata. Based on this evidence we can only predict drought for the coming months. April will be crucial.
All temperature readings are taken directly from the source and indicate less that half a degree C variance, even when air temperatures were minus 3°C. This would seem to indicate a well-insulated source with a geothermal constant.
|
|
|
|
21.03.05 Water measurements for 1st Quarter 05
The first quarter of this year's water measurements are now complete. In the 13 weeks between Winter Solstice and the Vernal equinox the springs produced approximately 18 thousand cubic metres of water.
It should be noted that rainfall in our area for January and February this year was virtually non-existant.
Britain normally experiences about 900mm of rain per year so to have had less than 100mm in this locality this quarter it is really very little, particularly with the trend for winters to become wetter and wetter.
In the first quarter of the year 1766, 200mm of rain fell and this has increased steadily to be around 260mm presently. These are, however, averages for the entire British Isles and rainfall does vary drastically along the length, breadth and height of the country.
It should also be noted that, on average, half the rainfall simply evaporates back into the atmosphere. The evaporation rate is higher the flatter the surface onto which the rain falls. We feel that measuring the output of the springs gives a clear correlation between rainfall amounts and the quantity of water which becomes available as a consequence of that rainfall, and also provides an earlier indication of trends than the height of reservoirs.
|
|
|
