1	An Overview of GIS and Complementary Technologies January 28^th 2005
2	What is GIS Geographic Information Systems A system for management, analysis, and display of geographic knowledge… represented using a series of information sets such as maps and globes, geographic data sets… including processing and work flow models, data models, and metadata. Source: www.esri.com
3	GIS Integrates Data For example... Vital Events: Birth, Death, Immunizations Infrastructure: Buildings, Roads, Hospitals, Clinics, Physician Offices Program Data: Demographics, Clients, Utilization, Resource Distribution, Caseloads Facilities & Services: Inspections, Locations of Service, Assets Administrative Boundaries: Districts, Service Areas, Planning Areas, Legislative Areas Environmental: Topographic, Bio-Hazards, Toxic Sites, Water and Air Quality Testing Sites
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5	GIS Data Layers
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13	Internet Mapping Delivery of GIS Datasets to Wider Audience at a Lower Cost Utilizes a Familiar Technology Which Does not Require Specialized Training Some Limitations with Advanced Functions High-End Analysis & Cartographic Output Quality
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20	GPS Data Accurately portrays current situation Digital collection minimizes errors in transcription and transfer to GIS Verify the accuracy of maps with more accurate GPS data
21	GPS Unit Trimble GeoXM Windows Mobile OS 2-5 Meter Accuracy TerraSync GPS Software
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27	LiDAR LiDAR is an acronym standing for Light Detection and Ranging. It is the direct, optical analog to Radar, which uses radio waves. One simply measures the time from when the laser is pulsed to the time that the LiDAR signal is received.
28	Airborne LiDAR Defined as an airborne laser system, flown aboard rotary or fixed-wing aircraft Acquires x (longitude), y (latitude), and z (elevation) coordinates of terrain and terrain features Both manmade and naturally occurring.
29	Airborne LiDAR Components Airborne Global Positioning System (GPS) with attendant GPS base station Inertial Measuring Unit (IMU)/Inertial Navigation System (INS) – Determines position of laser. Light-emitting scanning laser. 20,000 – 40,000 pulses per second.
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32	LiDAR Data highly accurate (1 meter), digital, topographic data file 1214741.00 -14307.19 412.86 340.61 433250.748488 1 16.92 17.43 1155 1214742.56 -14254.57 415.45 343.20 433250.767687 1 16.08 16.61 1155 1214742.93 -14260.46 415.62 343.36 433250.767735 1 16.17 16.71 1155 1214743.45 -14266.60 413.09 340.84 433250.767783 1 16.26 16.79 1155 1214740.73 -14258.44 458.99 386.74 433250.767831 1 16.35 16.88 1155 1214743.62 -14271.38 415.32 343.07 433250.767831 2 16.35 16.88 1155 1214740.30 -14260.65 470.67 398.42 433250.767879 1 16.44 16.97 1155 1214739.85 -14270.02 492.13 419.87 433250.768023 1 16.70 17.22 1155 1214740.73 -14277.48 483.40 411.15 433250.768071 1 16.78 17.30 1155 1214741.12 -14283.44 483.07 410.82 433250.768119 1 16.87 17.40 1155 1214741.26 -14287.60 485.73 413.48 433250.768167 1 16.96 17.48 1155 1214742.21 -14163.49 407.05 334.80 433250.786503 1 14.55 15.12 1155 1214742.54 -14168.97 407.12 334.86 433250.786551 1 14.64 15.20 1155 1214742.85 -14173.98 407.05 334.80 433250.786599 1 14.72 15.29 1155 1214743.18 -14179.17 407.12 334.86 433250.786647 1 14.80 15.37 1155 1214743.49 -14184.43 407.51 335.26 433250.786695 1 14.89 15.45 1155 1214743.85 -14190.78 408.14 335.88 433250.786743 1 15.00 15.56 1155 1214744.15 -14195.50 408.10 335.85 433250.786791 1 15.07 15.63 1155 1214744.50 -14201.13 408.30 336.05 433250.786839 1 15.17 15.73 1155
33	LiDAR Data Uses Floodplain Mapping – FEMA Approved Telecommunications – Line of Sight Urban – 3D Simulation for Emergency Response, Transportation Planning, Site Evaluation Natural Resource Mgt. – Seismology, Vegetation and Habitat Characterization Forest Mgt. – Estimate tree height, density, biomass and canopy cover for growth/production models.
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41	GIS Resources on the Web Thurston Geodata Center www.geodata.org ESRI www.esri.com ArcExplorer Freeware www.esri.com/software/arcexplorer/index.html Trimble GPS Units www.trimble.com Puget Sound LiDAR Consortium http://duff.geology.washington.edu/data/raster/lidar/
42	GIS Data Sources on the Web Department of Ecology http://www.ecy.wa.gov/services/gis/data/data.htm Department of Transportation http://www.wsdot.wa.gov/mapsdata/geodatacatalog/default.htm Department of Natural Resources http://www3.wadnr.gov/dnrapp6/dataweb/dmmatrix.html Washington State Geospatial Clearinghouse http://wa-node.gis.washington.edu/ USGS Cascades Volcano Observatory http://vulcan.wr.usgs.gov/Volcanoes/MSH/Eruption04/framework.html *Links current as of 1/20/05
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