There are various gaps in this dataset due to instrument/computer failure etc. If the data you want is not plotted then it probably does not exist. For data collected since 2012 the plots shown are based on the data automatically transmitted back to Manchester, often data was still recorded locally when the link was down so data may exist when there are gaps in the plots. If data is missing for a period of time you are interested in please email michael.flynn@manchester.ac.uk.

This website will look much better in a web browser that supports web standards, but it is accessible to any browser or Internet device.