© Crown copyright Met Office Re Using GIS for Re Climate Impacts Analysis 2nd ACRE Workshop (1 st to 3 rd April 2009) Neil Kaye

© Crown copyright Met Office Introduction Not Just Pretty Maps (but that’s part of it) GIS data structures and storage Using GIS to solve problems A technique for visualising ensemble forecasts A funky map to finish

© Crown copyright Met Office Not just Pretty Maps! HOME MET OFFICE The West Country Met Office HQ London Up North Scotland 50 o 60 o

© Crown copyright Met Office What is GIS? A GIS is a computer system capable of capturing, storing, analyzing, and displaying geographically referenced information; that is, data identified according to location. A GIS allows multiple layers to be combined in one dataset Social Factors Biodiversity Engineering Land Use Environmental Considerations

© Crown copyright Met Office Data Structures Raster vs Vector

© Crown copyright Met Office Data Storage Spatial databases

© Crown copyright Met Office Problem: Identify a location for 4 new climate stations that occur in an in area of low climate station density and high population density. Solution: Create a map to identify the appropriate areas. High population density, high station density Low population density, low station density Low population density, high station density High population density, low station density

© Crown copyright Met Office

Selecting station based on climatology Max Temp +/- 0.5 o C Min Temp +/- 0.5 o C Precipitation +/- 10% Elevation +/- 100m

© Crown copyright Met Office Vineyard Suitability GIS Example

© Crown copyright Met Office It matters what it looks like!!!

© Crown copyright Met Office Koppen Classification

© Crown copyright Met Office Change in classification by 2050 (HADCM3) Equatorial to arid Warm temperate to equatorial Warm temperate to arid Hotter Summers

© Crown copyright Met Office Tundra to snow fully humid with a cool summer Change from cool to warm summer Change from warm to hot summer Change from warm temperate to arid

© Crown copyright Met Office Change from warm temperate to arid Change from steppe to desert Change from equatorial summer dry to arid steppe Change from warm temperate fully humid to equatorial summer dry Hotter summers

© Crown copyright Met Office Visualizing ensemble model data Neil Kaye

© Crown copyright Met Office Standard HADCM3 Model Run

© Crown copyright Met Office QUMP Atmospheric Ensemble – Global Mean Temperature Anomaly

© Crown copyright Met Office Runoff 2100 – 2000 Atmospheric QUMP (HADCM3) Little Agreement between Ensemble Members Transition between strong agreement on decreased runoff and strong agreement of increased runoff Little Agreement between Ensemble Members

© Crown copyright Met Office QUMP Atmospheric Ensemble – Global Mean Temperature Anomaly

© Crown copyright Met Office Low Mean R 2 Value High Mean R 2 Value

© Crown copyright Met Office Cartogram showing global CO 2 emissions

© Crown copyright Met Office It matters what it looks like It is about presentation