PRECIS Reading Workshop, 24 - 28 August 2009 Introduction to IDV PRECIS Reading Workshop, 24 - 28 August 2009 © Crown copyright Met Office

Overview Integrated Data Viewer (IDV) Overview IDV features Supported data formats Web enabled features IDV as an Integrator PRECIS demo with IDV © Crown copyright 2007

What is the IDV? Unidata’s newest scientific analysis and visualization tool Freely available Java™ framework and reference application Provides 2- and 3-D displays of geoscientific data Stand-alone or networked application Built on VisAD library © Crown copyright 2007

Gully erosion/deposition from VisAD-based DEMViewer VisAD’s Data Model Designed to support virtually any numerical data Metadata can be integrated into each data object Supports mathematical operations as well as evaluation and resampling of data Supports spatial and temporal co-location of data Supports data sharing among different users, different data sources and different scientific disciplines May be used independently of the VisAD display model Gully erosion/deposition from VisAD-based DEMViewer © Crown copyright 2007

Supported Data Formats The IDV can integrate displays of a variety of geoscientific and other data including: Scientific Georeferenced netCDF data Vis5D data McIDAS/ADDE (satellite, radar, surface and upper air) Archive Level II radar Social ESRI shapefiles (e.g. map boundaries) ArcInfo ASCIIGRID (e.g., DEM) GeoTIFF OGC Standards Educational HTML QuickTime NO2 concentrations over Berlin, Germany – data from netCDF, maps from shapefile © Crown copyright 2007

Unique IDV Features Interactive probes for dataset exploration Parameter readouts Vertical profiles Time/Height displays Lat/Lon/Alt position QuickTime capture and playback Incorporation of educational materials User defined formulas Extensible framework Extensive use of network resources © Crown copyright 2007

Web Enabled Features Integrated HTML Viewer IDV includes a customized HTML viewer Viewer can be used to provide context with associated data displays IDV displays can be easily embedded in the HTML Can be used as a customized UI which controls the IDV © Crown copyright 2007

Web Enabled Features Use of Java Web Start™ Java Web Start can be used to load in the IDV from a web page JNLP files can include pointers to configuration files and bundles for customization Web Start provides automatic software updates © Crown copyright 2007

IDV as an Integrator Integrating data from disparate data sources is easy with the IDV Data can come from local and remote locations Data on different projections are automatically remapped Data from different times are synced Isosurface of a climate variable, topography from ASCIIGRID DEM file, and interstate highways and county outlines/labels from shapefiles. © Crown copyright 2007