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Building the National Spatial Data Infrastructure in Alaska Alaska Geographic Data Committee Presented by: Richard McMahon, DNR May 9, 2003
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Build geographic information partnerships in Alaska Leverage resources Promote the visions and goals of the National Spatial Data Infrastructure
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Juneau Barrow Orlando New York 1,100 miles SIZE AND DISTANCE COMPARISON At 586,400 square miles, Alaska is as wide as the lower 48 states and larger than Texas, California and Montana combined
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Vision Current and accurate geospatial data will be readily available to contribute locally, nationally, and globally to economic growth, environmental quality and stability, and social progress. Capture this vision by publishing the Alaska I-Team Plan for NSDI Implementation AGDC
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NSDI / AGDC Objectives How do we achieve the vision of widely distributed geo-spatial information? –Communicate –Ensure means to share and use data –Develop and use standards –Educate and train –Encourage partnerships
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Some Themes of Data Are Commonly Used 0 10 20 30 40 50 60 70 80 90 100 TransportationWaterCulturalElevationsParcelsBoundaries Currently useNeed Do you use these themes of digital data? (If no, do you foresee that you might need them?) 1996
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Base Map Data Framework In progress Complete Elevation (general) Hydrography Geodetic control Cadastral Transportation Governmental Units Landcover Bathymetry Elevation (accurate) Digital Orthoimagery Does not exist
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The Information Technology Promise InfrastructureSpecific Business Applications Standard High Value To The Business Low Value To The Business
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The Information Technology Challenge High Value To The Business Low Value To The Business InfrastructureSpecific Business Applications Standard 80% Of Budget 20% Of Budget
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10 Geographic Data Base Data Decision Process Decision Process Cooperative Agreements: State – BLM State – USGS Initiatives: eg Cadastral
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Relative Costs of Framework Layers
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Data Sharing & Open Standards “The Open GIS Consortium envisions the full integration of geospatial data and geoprocessing resources into mainstream computing and the widespread use of interoperable, commercial geoprocessing software throughout the information infrastructure.” OCG 1996 gIS not GIS - Geoprocessing integrated into the everyday workflow.
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View from 10 Years Ago Range Check with 1993 Issues 1. No agreed upon national vision of the NSDI, no apparatus to implement it. Consequently, there is no national policy covering spatial data. 2. Because of the lack of central oversight, there appears to be extensive overlap and duplication in spatial data collection … high variation makes the sharing of spatial data is very difficult or impossible. 3. There are no current mechanisms that allow identification of spatial data have been collected, where the data are stored, who controls access, content of the data, and the data coverage. 4. Standard activities need to be expanded beyond transfer standards. There is no agreed upon representation of “base data” as a function of scale. 5. There are major impediments to, and few workable incentives for, the sharing of spatial data among the federal, state, and local organizations. Open GIS Consortium, Inc.
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1-meter resolution Specifications Urbanized area, native villages, major transportation corridors and the Trans-Alaska Pipeline Color-Infrared Imagery Quarter-quad format Meets National Map Accuracy Standards North American Datum 1983 Source: Gust Panos, BLM Chair OrthoImagery Sub-Committee
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Specifications 5-meter resolution Statewide coverage Quarter-quad format Color-Infrared Imagery Meets National Map Accuracy Standards North American Datum 1983
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LANDSAT 7 BASEMAP PROJECT University of Alaska Fairbanks Geographic Information Network of Alaska GINA http://www.ion.gina.alaska.edu/ Statewide Basemap: Suitable for 1:63360
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Digital Elevation Models DEM
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Uses of digital elevation data: aspect drainage watershed slope landform contours solar insolation Geometric corrections for orthoimagery Derive topographic information
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Color swaths indicate the number of times the area was imaged by SRTM 0 1234? Source: Rick Guritz, UAF SAR Facility
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22 SAR Tandem Mission: Fairbanks ESA Tandem Mission Results; Accuracy Assessment Rick Guritz; ASF Special Projects Manager Source: Rick Guritz, UAF SAR Facility
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23 DEM Control GPS Road Survey Methodology: –Conducted GPS surveys on road –Compare DEM heights vs. measured GPS heights –Map errors –Statistical summary comparing GPS with the DEM Fairbanks GPS Project Lead: Dave Burns, DNR Forestry Division
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24 DNR Forestry GPS Road Survey Source: Dave Burns, Division of Forestry Rick Guritz UAF SAR Facility
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25 Statistical Assessment GPS Road Survey Source: Rick Guritz UAF SAR Facility
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26 DEM SAR Feasibility Assessment Product Accuracy - Tandem Results over Fairbanks are well within the National Map accuracy standards (1:24,000 scale). Proceed with further development. Data Availability – There is adequate coverage, ascending and descending for ~ 50% of Alaska, ~50% descending only Data Quality – Quality is adequate in spite of varying topography and land cover conditions for the majority of the state. Distribution – ESA derived products are unrestricted – public domain.
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Bathymetry & Coastline Major NOAA Bathymetric Studies Underway. Alaska Coastline Miles of Coastline NOAA 26,000 + miles USGS 1:63,360 40,000+ miles
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Geodetic Control Low Density Control Grid Deployment of CORS Stations Underway Plans Tied to Air Transportation Grid - FAA Airports Alaska DOT/PF densifying grid along transportation routes. CORS: Continuously Operating Reference Stations
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Alaska Cadastral Project Source: Alaska BLM Cadastral Survey
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30 Topography Alaska Cadastral Project Vision Public Survey Private Survey Federal Land Parcels State Land Parcels Borough & Muni Native Parcels Documents Ortho-images Land Use eg. Trails All Land Owners Reports and Data Tables
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~ 100,000 Plats & Surveys
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~100,000 State and Federal Plats and Surveys Available
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33 Cadastral: Spatially Enabled Recorder’s Office No MAP BASED search option available
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34 Contents: Home Download Data Tools and Utilities Available Surveys SDMS Township Query New Protracted Corners New Township Locator New Survey Query Help: Using Interactive Maps Frequently Asked Questions Questions/Comments Site Information: Use of Cookies Disclaimer Privacy Policy Home Download Data Tools and UtilitiesAvailable SurveysSDMS Township QueryProtracted CornersTownship LocatorSurvey QueryUsing Interactive MapsFrequently Asked QuestionsQuestions/CommentsUse of CookiesDisclaimerPrivacy Policy
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35 Cadastral – Land Ownership – Governmental Units Answers the question for industry and the general public: Who administers this land, where are the political jurisdictions? This layer is about 80% Complete.
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Transportation
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Alaska Road Network
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Alaska has 13,485 miles of roads. Arkansas a state 1/12th the size of Alaska has six times the road mileage at 77,085 miles
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Transportation Data Sources Transportation As Part of Statewide Basemap Statewide Highway System Borough Roads Forest Roads - Timber and Fire Programs Mining Access, RS2477 North Slope Infrastructure Transportation Planning: Part of 1993 Land Selections – Corridor Analysis Maps FAA Airports Right of Way Projects - Decisions
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41 DIFFERENTIAL GLOBAL POSITIONING SYSTEM CENTERLINE DATA ROADWAY CENTERLINE PROJECT GOAL: create a current, accurate digital dataset of the State Transportation Network using DGPS receivers. New methodology planned for Summer 2003 season, goal is to reduce total cost and time required to process raw data. The program has been in place for three field seasons. The posted data is a fraction of what has been collected, more data will be added on a regular basis. Alaska Department of Transportation and Public Facilities, Statewide GIS Mapping Section is project manager. http://www.dot.state.ak.us/stwdplng/mapping/web/dgps_centerline.html
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42 Source: Dennis Tol Alaska BLM Sub-Committee Chair Phone - 907 271-3348 E-mail - dtol@ak.blm.govdtol@ak.blm.gov
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43 National Hydrographic Database Alaska Key Products Routed stream coverage with standard waterbody identifiers Delineated 5 th and 6 th level Hydrologic Units Leading Application: Statewide Fisheries Database- Anadromous Waters Catalog
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45 Watershed Delineation for the Upper Copper River Catalog Unit(4 th Level)
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Alaska Watershed and Stream Hydrography Enhanced Datasets Web Site - HTTP://agdc.usgs.gov/hydro Dennis Tol Alaska BLM Phone - 907 271-3348 E-mail - dtol@ak.blm.govdtol@ak.blm.gov NHD Website: http://nhd.usgs.gov
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49 Managing the Geospatial Library Transportation FGDC Other Standards OGC OMG WWWC ISOSister Disciplines © 1998, Open GIS Consortium, Inc. All Rights Reserved
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50 Key Points Alaska needs a new basemap. The paper based maps from USGS are no longer meeting our needs. Alaska deserves a digital basemap that is consistent with National Standards. Basemap information is essential for planning developments, managing assets, improving living conditions, responding to disasters and protecting the environment.
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51 Spatial data infrastructure has significant economic benefits to the community. Benefit-Cost ratios have been as high as 9 : 1 Benefits of spatial data increase as more organizations have access to the data. The Alaska Initiatives have broad support in the community. I-Team Plans are the next step. Key Points
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