North Dakota Geospatial Web Services

April 25, 2006

Bob NutschGIS CoordinatorState of North Dakota

MAGIC Symposium

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AgendaBackground & OverviewArchitectureComponentsUsageLessons LearnedFuture PlansSummary

Historic Camper Fryburg, Harley Jose

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Background & OverviewTo increase efficiency and reduce overall GIS costs at the state level, the Legislature provided funding to build the North Dakota GIS HubThe GIS Hub is a database and web infrastructure used for hosting and sharing State agency GIS data and applications, it is located at the Information Technology DepartmentGeneral funds pay for data and application hosting, agencies pay for development costs

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Background & OverviewThe primary purpose of the GIS Hub is to provide a central database serving state agenciesWeb services are used by agencies and their constituents, the public, consulting firms, and other levels of governmentWeb services as used here is a general term for data discovery, data browsing, and data delivery

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Architecture - SoftwareESRI – ArcIMS & ArcSDESafe Software – FME and Spatial DirectLatitude Geographics – Geocortex StatisticsIBM – HTTP web server & WebSphereOracleLinux, Solaris, Windows

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Architecture - Hardware

Oracle & ArcSDE

FME Server

ArcIMS Spatial Server

Web BrowserArcGIS

ArcIMS Application Server

SAN

ArcIMS Application Server

ArcIMS Spatial Server

File Server

ProxyServers

Web Servers:HTTP & WebSphere

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ComponentsHub ExplorerMetadata ExplorerUtility ToolboxData Streaming

17th hole at the Bully Pulpit Medora, Ken Yetter

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Components – Hub ExplorerTemplate used for browser-based application developmentUsed by state agencies for interactive mappingThere are both internal and external Hub Explorer sites Includes ability to download vector data

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Components – Hub Explorer

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Hub Explorer – Game and Fish

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Hub Explorer – Dept. of Ag.

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Hub Explorer – Data Download

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Hub Explorer – Data Download

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Components – Metadata ExplorerData browsing and discoveryReferenced data sets include:

GIS Hub web image and feature servicesRaster data available on FTPIn-progress datasetsInteractive mapsCounty data

Includes vector data downloadingMined by Geospatial One-Stop

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Metadata Explorer

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Metadata Explorer

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Metadata Explorer

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Metadata Explorer – Download Data

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Components – Utility ToolboxRuns as a servletContains general application utilitiesUsed to record addresses that have failed geocodingUsed to create agency “static” maps:

NDDOT – road conditions, construction, load restrictionsND Emergency Services – rangeland fire index

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Utility Toolbox – NDDOT MapsRoad Conditions

Road Construction

Load Restrictions

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Utility Toolbox – Fire Index

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Components – Data StreamingESRI-centric image and feature services

Streaming of image and vector dataPrimarily used by users outside of firewall

OGC-centric Web Map ServicesThe first WMS was developed for use by the National MapUsed by state and federal agenciesAdditional WMS are created as needed

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Data Streaming - Feature & Image Services

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Data Streaming - Feature & Image Services

ArcMap

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Data Streaming - Feature & Image Services

ArcExplorer

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Data Streaming - WMS

TheNationalMap

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Data Streaming - WMS

ND State Water Commission(MapServer)

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Data Streaming - WMS

Using uDig todisplay theFt. LincolnInfantry Post (Custer rode from Ft. Lincoln to Little Bighorn)

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GIS Hub Web Services Usage68,400 data downloads – 5.8 terabytes (3/2004-3/2006)Feature services – est. 15,000 hits Jan-MarWeb applications average 70,000+ hits/month

2006WMS

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Image Services - Usage

October 5, 2005 Snowstorm

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Image Services - Usage

Popular Extents forthe public-facingGame & Fish Hub Explorer - 2005

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Lessons LearnedTemplates allow more rapid development of applicationsMultiple production servers – load balancing, maintenance, upgradesTest/development server, including access by agenciesUse metadata as a method of web-based data discovery – helps agencies recognize the value in metadata

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Lessons LearnedMonitor usage of web services:

Remove under utilized services, or combine into fewer servicesRecognize highly used and/or important services – optimize software and apply monitoring tools

Consider creation of OGC web services if not yet available

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Future PlansAs demand requires:

Develop additional WMSImplement WFS and other OGC servicesMigrate from ESRI-centric web services to OGC-centric web services

Raster downloading via Hub Explorer and Metadata ExplorerImprovements to Metadata Explorer including metadata submittal

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SummaryGeospatial web services are a mechanism for getting data out to users who would otherwise not have easy access to itIt is important to

Provide options for data discovery, data browsing and data deliveryProvide a buffet of data delivery choices – streaming and download

Geospatial web services assist in economic development – oil & gas, coal, hunting, fishing, business sitingWeb services can free up agency time

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Thank You!

For more information, please contact:

Bob Nutsch, GIS Coordinator

701-328-3212

bnutsch@nd.gov

www.nd.gov/gis