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  1. At Cropp River, on the west coast of the South Island, 1086 mm was recorded in 48 hours. For perspective, Christchurch, which is about 100 miles east of the site, recorded <1 mm in the same period. This is enormously larger than any of the UK's 48, 72 or 96 hour records (all of which are a measly 400-500 mm). It's not really that far off Britain's highest monthly rainfall total of 1396 mm! New Zealand's calendar month record is currently at 2927 mm (or 3813 mm if you allow for any 31 days period). Since March has had a very long dry spell, Cropp may not be able to beat its current monthly record.
  2. Hi After such a wet month as January 2014, I decided to look at what evidence there was for an increase in incidence of extreme rainfall events across the United Kingdom. The best way to do this as far as I can see is to use the daily records that make up the UKP datasets and which are maintained and made freely available by the Met Office. They split the country up into nine sub-regions and provide daily values back to 1931 for each. On top of this they have 3 sets of composite regional values for Scotland, Northern Ireland and England Wales as well. The report contains graphs with an annual count of days with more than 12.7 mm of rain, and days with more than 25.4 mm of rain from 1931-2014, with the obligatory moving average and trend for all the UKP sub-regions. (1) Central England (2) E Scotland (3) SW England & S Wales (4) NE England (5) N Scotland (6) NW England & N Wales (7) SE England ( S Scotland (9) England & Wales (10)N Ireland I'll let you decide if global warming is the cause of the increase over England and Wales, and if it is, why has there been a decrease over the north of Scotland since 1931? xmetman
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