Whilst the University of Portsmouth and the Great Britain Historical GIS Project try their best to ensure that this web site is normally available 24 hours a day, access to this site may be suspended temporarily and without notice in circumstances of system failure, maintenance or repair or for reasons beyond their control.
In order to allow for upgrades and system maintenance, Friday mornings 09:00 - 11:00 (GMT/BST) are designated an "at risk" period. Apologies for any inconvenience this may cause.
We will endeavour to give advance warning of use of the "at risk" period when there is a possibility of downtime extending beyond the designated "at risk" period.
Please refer to the team blog for further information on specific service availability.