Building a mixed GIS Environment Arc GIS Open
Building a mixed GIS Environment Arc. GIS / Open Source Nick Morgan 29/09/2016
Met Office GIS Sub Team Part of the Geo. Apps Team in the Technology Division • Support the GIS infrastructure • Support GIS Users • Manage GI data • Provide GI Consultancy • Build Systems, Data and Tools
Content • Desktop Central Geo. Database • Web Server • Building Meteorological Systems • Long Term
Central Geo-Database • UK and World • Boundaries, Trees, Rivers, Terrain Models, Roads, Land Use, Postcodes. . . • 600 +Layers all with Metadata • 100, 000 tiles • 500 Gb • Largest feature record size 2. 5 million features
Desktop/Central Geo-Database Digital Map Management System Arc. GIS Postgresql/Post. GIS Arc. GISServer Basic / Raster Mosaics Vector & Raster Metadata Search Ve cto r QGIS Drive with folders of Geo. Tiffs ------DEM_GL 0 AUG__ |---DEM_GL 90 MOACG__ |---MAP_GB 50 K 1 AOS__ |-- Raste ster r / Ra ics Mosa
Web Server • How would that help? • WMS could provide the Mosaics to QGIS • Create a common system for other systems • Central point of truth • We could then create a web metadata search (Geo. Network/Arc. GIS Portal. . . )
Web Server “Management won’t buy us a shiny new Arc. GISServer” Geo. Server A few feature layers Geo. Server Raster tile already styled Geo. Server Many layer feature map Easy I cannot face this
Web Server wouldn’t it be simple if. . We could style in Arc. GIS Desktop or QGIS and upload to Geo. Server • Tried some free open software no success yet • Tried writing software but only got so far. . . • “Borrow an Arc. GIS Server create tile cache and feed it through” • Perhaps buy some kit or use Map. Server?
Building Meteorological Systems with GIS • Volcanic Ash Intervention tool – Arc. GIS • Surface Water Runoff - Open. Source
Volcanic Ash Intervention Tool Arc. GIS • 8 Flight levels • 10 time steps • Has to complete processing in 15 minutes • Forecaster can edit plume
Platform HPC Technology NAME Volcanic Ash Intervention Tool Server Python Arc. PY Arc. GISServer Postgre. SQL database PC Web browser Arc. GIS Flex API Process Volcanic Plume Conversion to Net. CDF Raster to Polygon Simplification Output publication Web Map Services Forecaster Intervention
Surface Water Runoff Prototype. Open. Source • Over a given 24 hour period the system processes 28 forecasts. 56 GB of data • Threshold exceedence “triggers” impacts on 1 km squares for England Wales. • 126 WMS services are spawned each with a time dimension
Surface Runoff
Platform HPC Technology G 2 G Surface Water Runoff Server Python Some Arc. PY PC Geo. Server Visual Weather Postgre. SQL database Web browser Open. Layers Process Arc. GIS Desktop Weather forecast Hazard Modelling Hazard & Impact processing Output preparation Output publication Web Map Services User visualisation
Moving Forward GIS will grow • It will be piece meal • QGIS will be rolled out alongside Arc. GIS Desktop
Questions and hopefully answers. . .
- Slides: 16