Home
Reports & guidance
Frequently asked questions
Science & modelling FAQ
Are the projections at sea level or are local topographical effects taken into account?
Do the projections include intense convective rainfall such as occurs in thunderstorms?
Does UKCP09 provide any information beyond 2100?
Does UKCP09 consider changes to the Gulf Stream (Meridional Overturing Circulation)?
How are the estimates of land movement used in the relative sea level projections derived?
How are the models used in UKCP09 weighted, and how sensitive are the projections to this weighting?
How can I deal with changes in UK since the 1961-1990 baseline period?
How do the projections in UKCP09 compare with those in UKCIP02?
How do the storm projections for UKCIP02 and UKCP09 compare? Does UKCP09 show an increase in the frequency, intensity and severity of storms?
How do I load the observed trends gridded data into ArcGIS?
How does the Met Office Hadley Centre model compare with other models?
How does UKCP09 model sea level rise?
How have Cooling Degree Days (CDD) and Heating Degree Days (HDD) been calculated in UKCP09?
What are the sources of uncertainty in the Marine & coastal projections?
What atmospheric processes and feedbacks are included in the UKCP09 modelling?
What does the frequency distribution associated with the sea level projections actually mean?
What methodology was used to generate Potential Evapotranspiration in the 11-member RCM?
What uncertainties exist with the sea level rise and storm surge projections?
What variables are available from the different UKCP09 terrestrial data sources?
Where can I find information on the coordinates and IDs of the grids?
Why is the baseline period for the sea level rise projections different from the UKCP09 1961-1990 baseline?
Why are the storm surge, sea level waves and multi-level ocean projections not probabilistic?
Why was the IPCC AR2 emissions scenario not used as the UKCP09 High emissions scenario?
Why can't I aggregate two grid cells together with the probabilistic data?
Will the PDFs incorporate the effect of natural multi-decadal variability as well as climate change?

How do I load the observed trends gridded data into ArcGIS?

The Observed trends are based on gridded datasets that have been generated for a range of climatic variables, covering the UK on a 5 km x 5 km grid for the period from 1914. They are available from the UK Met Office website – you will need to register to access the data.

In detail

Use the process below to load the files into ArcGIS:  

Click on Arc Toolbox, (red toolbox icon) so this appears as an additional menu. 
Click on Conversion Tools – To Raster – ASCII to Raster 
In the Input space, browse to the text file, select and click open. The Output space should load automatically. Do not edit this box. Keep Output data as Integer. 
Click OK. A box should appear saying it is processing. When complete, you should see a map of the UK appear on your screen.

Please note this process will vary depending on which GIS software package you are using.

Last updated: Thursday, 05 July 2012