practical applications of the u.s. national grid in minnesota
DESCRIPTION
Practical Applications Of The U.S. National Grid In Minnesota. Randy Knippel Dakota County. Agenda. National Grid Maps Standardized fire maps Overview of National Grid Web resources Places to start Data and tools ArcGIS Tools, tips, and tricks. Standardized Fire Maps. Randy Knippel - PowerPoint PPT PresentationTRANSCRIPT
Practical Applications Of The Practical Applications Of The U.S. National Grid In U.S. National Grid In
MinnesotaMinnesota
Randy KnippelRandy Knippel
Dakota CountyDakota County
AgendaAgenda
• National Grid MapsNational Grid Maps– Standardized fire mapsStandardized fire maps– Overview of National GridOverview of National Grid
• Web resourcesWeb resources– Places to startPlaces to start– Data and toolsData and tools
• ArcGISArcGIS– Tools, tips, and tricksTools, tips, and tricks
Standardized Fire MapsStandardized Fire Maps
Randy KnippelRandy Knippel
Dakota CountyDakota County
Map BookMap Book
U.S. National GridU.S. National Grid
Map PagesMap Pages
Street IndexStreet Index
Map Map LegendLegend
Map Map IndexIndex
Map Map 74567456
Street Street IndexIndex
Dana Dr.Dana Dr.
PDF Map BookPDF Map Book
Maps OnlineMaps Online(DCGIS)(DCGIS)
MapMapVK75VK75
United States National GridUnited States National Grid(USNG)(USNG)
• National standard since 2001National standard since 2001• Adopted by federal agenciesAdopted by federal agencies
– FEMA, DHS, NGA, USGSFEMA, DHS, NGA, USGS
• Adopted by several statesAdopted by several states– Florida, Missouri, North Carolina, othersFlorida, Missouri, North Carolina, others– Minnesota (March 25, 2009)Minnesota (March 25, 2009)
• Military Grid Referencing SystemMilitary Grid Referencing System– Metric systemMetric system
Why?Why?
• Multiple gridsMultiple grids– Needed one for everyoneNeeded one for everyone
• Need efficient location referencingNeed efficient location referencing
• Need interoperabilityNeed interoperability– Across jurisdictionsAcross jurisdictions– Local, state, federal, militaryLocal, state, federal, military
What about Lat / Long?What about Lat / Long?
• Not intuitiveNot intuitive– Degrees, minutes, secondsDegrees, minutes, seconds
• Several formatsSeveral formats– DMS, DMS.sss, DM.mmm, D.dddDMS, DMS.sss, DM.mmm, D.ddd– LongitudeLongitude
• + / -+ / -• West / eastWest / east• Increases left to rightIncreases left to right
What about Lat / Long?What about Lat / Long?
• How big is a degree?How big is a degree?– It variesIt varies
• 69 miles at the equator69 miles at the equator• Longitude gets smaller toward polesLongitude gets smaller toward poles• 50 miles in Dakota County50 miles in Dakota County
• Distance calculations are difficultDistance calculations are difficult
Grid Zone DesignationGrid Zone Designation 6 x 8 Degrees 6 x 8 Degrees
100 Km Squares100 Km Squares
10 Km Squares10 Km Squares
USNG:15T VK 75USNG:15T VK 75
1 Km Squares1 Km Squares
MapMap74567456
(15T VK 74 56)(15T VK 74 56)
U.S. National GridU.S. National Grid
Three ComponentsThree Components
• 18SUJ233710651918SUJ2337106519
• 18S UJ 23371 0651918S UJ 23371 06519
• 18SUJ2337065118SUJ23370651
MapMapVK75VK75
74567456
741565741565(15T VK 741 565)(15T VK 741 565)
MapMap74567456
(15T VK 74 56)(15T VK 74 56)
Grid Zone DesignationGrid Zone Designation(GZD)(GZD)
100,000 Meter Square100,000 Meter Square
TruncatingTruncating
TruncatingTruncating
USNG:15T VK (100Km square)VK is unique for 800 miles
in any direction
USNG:15T VK (100Km square)VK is unique for 800 miles
in any direction
ScalableScalable
NationalNational
RegionalRegional
LocalLocal
Precision and TruncationPrecision and Truncation
• 18SUJ2337106519 18SUJ2337106519 – 18S UJ 23371 0651918S UJ 23371 06519
• 1 meter precision, full USNG designation1 meter precision, full USNG designation
– UJ2306UJ2306• Assume GZD (18S)Assume GZD (18S)• UJ – 100,000 m precision (100 km square)UJ – 100,000 m precision (100 km square)• 23 06 – 1000 m precision (1 km square)23 06 – 1000 m precision (1 km square)
– 2337 06512337 0651• 10 m precision10 m precision• Assume GZD and 100 km squareAssume GZD and 100 km square
Key ResourcesKey ResourcesCritical InfrastructureCritical Infrastructure
Vulnerable PopulationVulnerable Population
• www.gis.state.mn.uswww.gis.state.mn.us
14TPS14TPS
PS79PS79
70967096
National Spatial Data National Spatial Data Infrastructure (NSDI)Infrastructure (NSDI)
Cooperative Agreement Cooperative Agreement Program (CAP)Program (CAP)
• Category 5: Building data stewardshipCategory 5: Building data stewardship– SchoolsSchools– Hospitals / clinicsHospitals / clinics– Police stationsPolice stations– Fire stationsFire stations
Tying It All TogetherTying It All Together
• Put USNG on maps!Put USNG on maps!
• Define standard map productsDefine standard map products– Seamless across jurisdictions (?)Seamless across jurisdictions (?)
• Include critical assets / key resourcesInclude critical assets / key resources– StructuresStructures
• Create supporting documentsCreate supporting documents
• TrainingTraining
The Romer ScaleThe Romer Scale
Examples – Examples – VK75
• What is at 15T VK 782 571?What is at 15T VK 782 571?– Burnsville City HallBurnsville City Hall
ExamplesExamples
• What is at 15T VK 7389 5116?What is at 15T VK 7389 5116?– small buildingsmall building
ExamplesExamples
• What is at 15T VK 8056 5724?What is at 15T VK 8056 5724?– BuildingBuilding
ExamplesExamples
• Find 15T VK 6890 5362?Find 15T VK 6890 5362?– BuildingBuilding
ExamplesExamples
• What map book pages cover Burnsville What map book pages cover Burnsville Center (35W – 35E interchange)?Center (35W – 35E interchange)?– 76547654– 77547754
Examples - Examples - Mapbook
• What is the USNG 100m square for What is the USNG 100m square for 3309 Dana Dr.?3309 Dana Dr.?– 15T VK 745 56415T VK 745 564
• Find 3309 Dana Dr. on VK75 Find 3309 Dana Dr. on VK75
ExamplesExamples
• What is at 15T VK 758 553?What is at 15T VK 758 553?– Acorn ParkAcorn Park
ExamplesExamples
• What is the USNG 100m square for What is the USNG 100m square for 3801 Azalea Pl.?3801 Azalea Pl.?– 15T VK 740 553 15T VK 740 553
ExamplesExamples
• What is at 15T VK 752 563?What is at 15T VK 752 563?– Edward Neill ElementaryEdward Neill Elementary
ExamplesExamples
• What is at 15T VK 743 576?What is at 15T VK 743 576?– Rudy Kraemer Nature PreserveRudy Kraemer Nature Preserve– Trail intersectionsTrail intersections
ExamplesExamples
• Find 12972 Morgan Pl.Find 12972 Morgan Pl.– 15T VK 757 572 15T VK 757 572