1. Practical Applications Of The U.S. National Grid In Minnesota Randy Knippel Dakota County

2. Agenda National Grid MapsNational Grid Maps –Standardized fire maps –Overview of National Grid Web resourcesWeb resources –Places to start –Data and tools ArcGISArcGIS –Tools, tips, and tricks

3. Standardized Fire Maps Randy Knippel Dakota County

4. Map Book

5. U.S. National Grid

6. Map Pages

7. Street Index

8. Map Legend

9. Map Index

10. Map 7456

11. Street Index Dana Dr.

12. PDF Map Book

13. Maps Online (DCGIS)

17. Map VK75

22. United States National Grid (USNG) National standard since 2001National standard since 2001 Adopted by federal agenciesAdopted by federal agencies –FEMA, DHS, NGA, USGS Adopted by several statesAdopted by several states –Florida, Missouri, North Carolina, others –Minnesota (March 25, 2009) Military Grid Referencing SystemMilitary Grid Referencing System –Metric system

23. Why? Multiple gridsMultiple grids –Needed one for everyone Need efficient location referencingNeed efficient location referencing Need interoperabilityNeed interoperability –Across jurisdictions –Local, state, federal, military

24. What about Lat / Long? Not intuitiveNot intuitive –Degrees, minutes, seconds Several formatsSeveral formats –DMS, DMS.sss, DM.mmm, D.ddd –Longitude + / - + / - West / eastWest / east Increases left to rightIncreases left to right

25. What about Lat / Long? How big is a degree?How big is a degree? –It 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

26. Grid Zone Designation 6 x 8 Degrees

27. 100 Km Squares

28. 10 Km Squares USNG:15T VK 75

29. 1 Km Squares

31. Map 7456 (15T VK 74 56)

32. U.S. National Grid

34. Three Components 18SUJ233710651918SUJ2337106519 18SUJ2337065118SUJ23370651

35. Map VK75 7456

36. 741565 (15T VK 741 565) Map 7456 (15T VK 74 56)

37. Grid Zone Designation (GZD)

38. 100,000 Meter Square

39. Truncating

40. Truncating 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

41. Scalable National Regional Local

42. Precision and Truncation 18SUJ233710651918SUJ2337106519 –18S UJ 23371 06519 1 meter precision, full USNG designation1 meter precision, full USNG designation –UJ2306 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 0651 10 m precision10 m precision Assume GZD and 100 km squareAssume GZD and 100 km square

46. Key Resources Critical Infrastructure Vulnerable Population

47. www.gis.state.mn.uswww.gis.state.mn.us 14TPS PS79 7096

48. National Spatial Data Infrastructure (NSDI) Cooperative Agreement Program (CAP) Category 5: Building data stewardshipCategory 5: Building data stewardship –Schools –Hospitals / clinics –Police stations –Fire stations

50. Tying It All Together Put USNG on maps!Put USNG on maps! Define standard map productsDefine standard map products –Seamless across jurisdictions (?) Include critical assets / key resourcesInclude critical assets / key resources –Structures Create supporting documentsCreate supporting documents TrainingTraining

52. The Romer Scale

54. Examples – VK75 VK75 What is at 15T VK 782 571?What is at 15T VK 782 571? –Burnsville City Hall

55. Examples What is at 15T VK 7389 5116?What is at 15T VK 7389 5116? – small building

56. Examples What is at 15T VK 8056 5724?What is at 15T VK 8056 5724? –Building

57. Examples Find 15T VK 6890 5362?Find 15T VK 6890 5362? –Building

58. Examples What map book pages cover Burnsville Center (35W – 35E interchange)?What map book pages cover Burnsville Center (35W – 35E interchange)? –7654 –7754

59. Examples - Mapbook Mapbook What is the USNG 100m square for 3309 Dana Dr.?What is the USNG 100m square for 3309 Dana Dr.? –15T VK 745 564 Find 3309 Dana Dr. on VK75Find 3309 Dana Dr. on VK75

60. Examples What is at 15T VK 758 553?What is at 15T VK 758 553? –Acorn Park

61. Examples What is the USNG 100m square for 3801 Azalea Pl.?What is the USNG 100m square for 3801 Azalea Pl.? –15T VK 740 553

62. Examples What is at 15T VK 752 563?What is at 15T VK 752 563? –Edward Neill Elementary

63. Examples What is at 15T VK 743 576?What is at 15T VK 743 576? –Rudy Kraemer Nature Preserve –Trail intersections

64. Examples Find 12972 Morgan Pl.Find 12972 Morgan Pl. –15T VK 757 572