With all the snow that has fallen over the last few months, Catherine Muller teamed up with the online local news provider ‘Birmingham Updates’ (@BhamUpdates) - who has over 70,000 followers on Facebook and Twitter - in order to collect snow depth data within and surrounding Birmingham. Over 170 people responded to the experiment, noting typical snow depth plus the first 3 characters of their post code. After taking the mean of the data for each post code area an interpolated map layer was produced (see map below). Obviously, the accuracy of the measurements could not be verified (e.g. inches may have been reported by some when it should have been centimetres!). However, in most cases there was more than one measurement for each post code area so a basic ‘spatial coherency’ quality check was conducted before averaging. Furthermore, the data appears to correlate well with the cumulative radar data.