Building a mixed GIS Environment ArcGIS / Open Source Nick Morgan 29/09/2016

Met Office GIS Sub Team Part of the GeoApps 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 GeoDatabase Web Server Building Meteorological Systems Long Term

Central Geo-Database UK and World Boundaries, Trees, Rivers, Terrain Models, Roads, Land Use, Postcodes 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 Postgresql/PostGIS ArcGISServer Basic Drive with folders of GeoTiffs DEM_GL0AUG__ |---DEM_GL90MOACG__ |---MAP_GB50K1AOS__ |-- ArcGIS QGIS Vector & Raster / Raster Mosaics Metadata Search Vector Raster / Raster Mosaics

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 (GeoNetwork/ArcGIS Portal...)

Web Server “Management won’t buy us a shiny new ArcGISServer” GeoServer A few feature layers GeoServer Raster tile already styled GeoServer Many layer feature map Easy I cannot face this

Web Server wouldn’t it be simple if.. We could style in ArcGIS Desktop or QGIS and upload to GeoServer Tried some free open software no success yet Tried writing software but only got so far... “Borrow an ArcGIS Server create tile cache and feed it through” Perhaps buy some kit or use MapServer?

Building Meteorological Systems with GIS Volcanic Ash Intervention tool – ArcGIS Surface Water Runoff - OpenSource

Volcanic Ash Intervention Tool ArcGIS 8 Flight levels 10 time steps Has to complete processing in 15 minutes Forecaster can edit plume

Technology PlatformVolcanic Ash Intervention Tool Process Raster to Polygon Web browser ArcGIS Flex API NAME ArcGISServer Output publication Polygon Simplification Conversion to NetCDF PostgreSQL database Python ArcPY Forecaster Intervention HPCServerPC Web Map Services Volcanic Plume

Surface Water Runoff Prototype. OpenSource Over a given 24 hour period the system processes 28 forecasts. 56 GB of data Threshold exceedence “triggers” impacts on 1km squares for England and Wales. 126 WMS services are spawned each with a time dimension

Surface Runoff

Surface water flooding

PlatformSurface Water Runoff Process Technology Hazard & Impact processing Web browser OpenLayers Visual Weather G2G GeoServer Output publication Output preparation Hazard Modelling PostgreSQL database Python User visualisation HPCServerPC Web Map Services Weather forecast Some ArcPY ArcGIS Desktop

Moving Forward GIS will grow It will be piece meal QGIS will be rolled out alongside ArcGIS Desktop

Questions and hopefully answers...