UKCP09 Guidance
Getting started
Data sources
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UKCP09 in practice
FAQ
Glossary
FAQ: Weather Generator
Can I aggregate 5km grid cells from the weather generator? Does the weather generator give an indication of future extreme rainfall? Does the weather generator reflect the topography of the local area in the future projections? Does the weather generator take into account spatial correlations between neighbouring grid squares? How can we be confident in the weather generator output if we aren't sure the statistics of the climate will stay the same? How is the hourly weather generator data derived? How is the UKCP09 weather generator different from other weather generators? How many decimal places can the threshold detector run for? Is the 30 year baseline climate in the weather generator stationary or transient? Are the future projections stationary or transient? Is the use of a 5km grid for the weather generator justified? Is the weather generator available over the sea? Why are there no estimates of wind speed in the weather generator output but PET (which requires wind speed) is included? Why do I need to run the weather generator 100 times? Why is the 1961-1995 baseline used by the UKCP09 weather generator when there have been important weather events since? How (or what) does the Weather Generator use to calculate potential evapotranspiration? What is the difference between the Weather Generator baseline and the baseline used for the probabilistic projections? Why does the Threshold Detector control output have an error associated with it?
Can I access the variables used to condition the Weather Generator? How can I use the Weather Generator to provide counts of days with rain?
Use of UKCP09
Weather Generator
Science & modelling
Products & the user interface
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