Presentation is loading. Please wait.

Presentation is loading. Please wait.

USNG US NATIONAL GRID. USNG United States National Grid Lessons learned have taught us that standardized grids are needed for positional reporting. As.

Similar presentations


Presentation on theme: "USNG US NATIONAL GRID. USNG United States National Grid Lessons learned have taught us that standardized grids are needed for positional reporting. As."— Presentation transcript:

1 USNG US NATIONAL GRID

2 USNG United States National Grid Lessons learned have taught us that standardized grids are needed for positional reporting. As far back as Hurricane Andrew, problems were recognized for emergency managers...

3 USNG What’s wrong with current systems? We already have… – Latitude/Longitude – Township/Range/Section – Street Address and Zip – UTM

4 USNG Latitude/Longitude Multiple formats are confusing DD -85.990151, 30.272240 DM -85 59.409089, 30.16.334386 DMS 85 59’24.545”W, 3020.063”N All the same location!!!

5 USNG How far is a second anyway? What is the distance from…. 85 59’24.545”W, 30 16’20.063”N To here…. 85 59’26.292”W, 30 16’14.546”N

6 USNG Worse yet… What is the distance from -85.990443, 30.275358 To here…. 85 59.364547, 30 16.504539

7 USNG Township/Range/Section Township/Range/Section grid from the Public Lands Survey System is an important and good system… – basis of land ownership records – been in use for over 180 years

8 USNG Township/Range/Section But a perfect section really doesn’t exist –irregular in coastal areas – too large to meet needs of ground crews

9 USNG Street Address and Zip Problematic due to… – rural routes – post office boxes

10 USNG What do you do when the SIGNS are gone?

11 USNG What do you do when the ROADS are gone?

12 USNG

13

14

15

16 RIGHT UP

17 USNG RIGHT UP 0

18 USNG 0

19 0 RIGHT UP

20 USNG 0 10 UNITS 100 UNITS

21 USNG 0 RIGHT UP

22 USNG Review Grid Zone 17R 100,000m 17R NJ 4 digit = 1,000m 17R NJ 72 65 6 digit = 100m 17R NJ 726 657 8 digit = 10m 17R NJ 7262 6578 RIGHT (Easting) - UP (Northing)

23 USNG Practical Exercise

24 USNG ppt Building at grid: 145 100 Ex 1 Read right, and up.

25 USNG ppt Building at grid: 1282 1122 Ex 1

26 USNG ppt Building at grid: 1210 1109 Ex 2 Read right, and up.

27 USNG ppt Road Intersection at grid: 1318 0978 Ex 3 Read right, and up.

28 USNG ppt Building at grid: 1448 0992 Ex 4 Read right, and up.

29 USNG ppt Building at grid: 1215 0924 Ex 5

30 Practical Exercise (Camp Blanding Map) 30 Locate the 8 digit coordinate for the 7 points on your map

31 USNG 1.17R MP 05361516 2.17R MP 04521665 3.17R MP 04731701 4.17R MP 05211585 5.17R MP 05401551 6.17R MP 06321356 7.17R MP 04821445

32 USNG


Download ppt "USNG US NATIONAL GRID. USNG United States National Grid Lessons learned have taught us that standardized grids are needed for positional reporting. As."

Similar presentations


Ads by Google