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Indiana University-UITS is playing an important role in Indiana GIS, most notably in providing the university community, GIS professionals, and the general public online access to terabytes of imagery via the Indiana Spatial Data Portal (ISDP), an IndianaMap asset. UITS faced a new challenge in creating, documenting, maintaining, and supporting ArcGIS Server webmap services. The project required a cost effective, secure, high performance, high availability, expandable hardware environment. The services and documentation also needed to be accessible to a broad range of user skill sets and applications. Users also requested a rapidly displaying, map cached service of the most recent, publically available Indiana orthophotography.
UITS updated the ArcIMS services by creating 22 new ArcGIS Server webmap services to access data. UITS also transferred over 70 million image files from the Indiana Department of Homeland Security’s (IDHS) hardware to IU to create a cached service of the most recent Indiana orthophotography available from the ISDP.
The project used IU’s Intelligent Infrastructure (II) hardware environment provided by the Enterprise Infrastructure division of UITS. The II virtual system provides substantial cost benefits, enhanced physical security and reduced energy usage. In addition the II environment supports project expansion as service needs increase.
UITS staff created a customized viewer to display commonly viewed GIS layers. This simplified viewer is quickly accessed from the ISDP Portal’s home page and provides easy viewing capability (http://gis.iu.edu).
Results
These new IndianaMap web map services provide the general public easy access to terabytes of Indiana orthophotography. UITS provides new services in multiple formats such as the ArcGIS REST API, the Open Geospatial Consortium’s WCS and Google’s KML. These map services support both professional and nontraditional GIS clients through ArcGIS Desktop and ERDAS products, free geospatial viewers such as ArcGIS Explorer, Google Earth, ArcGIS.com, and other Web applications. The project also demonstrates that the II’s virtual hardware provides a cost-effective, versatile, secure, robust environment for serving ArcGIS Server map services to the general public.