Geographic Grid
This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA
Overview
Download & View Geographic Grid as PDF for free.
More details
- Words: 259
- Pages: 24
Geographic Grid and Maps
Longitude and Latitude
How are longitude and latitude measured and how are places located?
Effect of the sphere on length
Four Spheres
Universal Transverse Mercator UTM
Civilian UTM • The grid is at Zone 14, 357 000, 5 476 000 • The church is at Zone 14, 357 400, 5 476 200
Military Grid • The church is in grid 9194
Military Grid • The church is located at 916944. • However, as grid numbers repeat themselves every 100,000 meters, it is necessary to use a different method.
Military Grid • Here the church would be in square NT99 and more precisely at point NT9293.
Converting latitude/longitude degrees to decimal degrees for GIS
• http://www.howtodothings.com/hobbies/how-to
Converting latitude/longitude degrees to UTM
• http://www.uwgb.edu/dutchs/UsefulData/UTMF
Practice Test
• http://www.lakelandsd.com/tutorial/lesson3.htm
Maps • illustrate the spatial distribution (i.e., geographic pattern) of almost any kind of phenomena • Maps provide a wealth of information. The information called spatial data. • Any object or characteristic that has a location can be considered spatial data. • The data can be qualitative (buildings, rivers, roads) or quantitative (elevation, air temperature, population density).
Map Projections • Attempt to preserve one or more of the following: • Area • shape • Direction • Bearing • Distance • Scale
Cylindrical Mercator
Robinson
Topographic Maps
Shaded Relief Maps
Thematic Maps: E.g. Seismic Activity
Map Scale • Expressed as a linear scale, a statement, or a fraction: • E.g.: • 1:1,000,000 [1cm on map=1,000,000 cm on earth] • 1: 100,000 • 1: 25,000
• http://www.classzone.com/books/earth_scienc • http://www.classzone.com/books/earth_scienc
• http://www.classzone.com/books/earth_scienc
Longitude and Latitude
How are longitude and latitude measured and how are places located?
Effect of the sphere on length
Four Spheres
Universal Transverse Mercator UTM
Civilian UTM • The grid is at Zone 14, 357 000, 5 476 000 • The church is at Zone 14, 357 400, 5 476 200
Military Grid • The church is in grid 9194
Military Grid • The church is located at 916944. • However, as grid numbers repeat themselves every 100,000 meters, it is necessary to use a different method.
Military Grid • Here the church would be in square NT99 and more precisely at point NT9293.
Converting latitude/longitude degrees to decimal degrees for GIS
• http://www.howtodothings.com/hobbies/how-to
Converting latitude/longitude degrees to UTM
• http://www.uwgb.edu/dutchs/UsefulData/UTMF
Practice Test
• http://www.lakelandsd.com/tutorial/lesson3.htm
Maps • illustrate the spatial distribution (i.e., geographic pattern) of almost any kind of phenomena • Maps provide a wealth of information. The information called spatial data. • Any object or characteristic that has a location can be considered spatial data. • The data can be qualitative (buildings, rivers, roads) or quantitative (elevation, air temperature, population density).
Map Projections • Attempt to preserve one or more of the following: • Area • shape • Direction • Bearing • Distance • Scale
Cylindrical Mercator
Robinson
Topographic Maps
Shaded Relief Maps
Thematic Maps: E.g. Seismic Activity
Map Scale • Expressed as a linear scale, a statement, or a fraction: • E.g.: • 1:1,000,000 [1cm on map=1,000,000 cm on earth] • 1: 100,000 • 1: 25,000
• http://www.classzone.com/books/earth_scienc • http://www.classzone.com/books/earth_scienc
• http://www.classzone.com/books/earth_scienc
Related Documents
Geographic Grid
October 2019 21
Grid
June 2020 27
Grid
June 2020 34
Grid
October 2019 48
Grid
November 2019 39