the geographer’s tools. differences between maps and globes a globe is an accurate, three-...

The Geographer’s Tools

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Mapping the World ► ► Cartographers, or mapmakers, have been making maps of the world for thousands of years. Today’s cartographers use high-tech tools, such as the Global Positioning System (GPS), to create highly detailed and accurate maps.

TRANSCRIPT

The Geographer’s Tools

http://www.flickr.com/photos/lukeharby/528219432/

Differences Between Maps and Globes

A globe is an accurate, three-dimensional model of the earth.

Maps are less accurate than globes in picturing the earth because they are just two-dimensional

Page 3: The Geographer’s Tools. Differences Between Maps and Globes A globe is an accurate, three- dimensional…

Mapping the World

►Cartographers, or mapmakers, have been making maps of the world for thousands of years.

Today’s cartographers use high-tech tools, such as the Global Positioning System (GPS), to create highly detailed and accurate maps.

http://www.flickr.com/photos/charliebcatt/146324383/

Page 4: The Geographer’s Tools. Differences Between Maps and Globes A globe is an accurate, three- dimensional…

Map ProjectionsMap projections show Earth’s curved surface on a flat map

All map projections distort Earth because they are two-dimensional

Robinson projection map commonly used, distorts less than Mercator

http://www.flickr.com/photos/owenblacker/46633541/

Page 5: The Geographer’s Tools. Differences Between Maps and Globes A globe is an accurate, three- dimensional…

Three Kinds of Maps

General reference (Topographic) maps - show natural and human-made features

Thematic maps - focus on specific idea or theme, such as population

Nautical map, or chart, - used to navigate air and water

Page 6: The Geographer’s Tools. Differences Between Maps and Globes A globe is an accurate, three- dimensional…

Picturing GeographyGeographers also use charts

and graphs - charts, graphs can display information more clearly than text

- useful for comparing information

http://www.flickr.com/photos/mewzii/149555960/

Page 7: The Geographer’s Tools. Differences Between Maps and Globes A globe is an accurate, three- dimensional…

Science of MapmakingScience of Mapmaking► SurveyingSurveying

Observe, Measure, and RecordObserve, Measure, and Record► Remote Sensing Remote Sensing

Landsat-Orbits the earth every 16 daysLandsat-Orbits the earth every 16 days GOES- Gathers images from space for weatherGOES- Gathers images from space for weather

►GIS, GPSGIS, GPS GIS-World digital databaseGIS-World digital database GPS-Originally developed to help military forces know GPS-Originally developed to help military forces know

exactly where they were on the earth’s surface…exactly where they were on the earth’s surface…now???now???

Page 8: The Geographer’s Tools. Differences Between Maps and Globes A globe is an accurate, three- dimensional…

http://www.claseshistoria.com/http://www.claseshistoria.com/bilingue/1eso/earthplanet/bilingue/1eso/earthplanet/

representation-projections.htmlrepresentation-projections.html

http://www.claseshistoria.com/http://www.claseshistoria.com/bilingue/1eso/earthplanet/bilingue/1eso/earthplanet/representation-scale.htmlrepresentation-scale.html

http://www.claseshistoria.com/http://www.claseshistoria.com/bilingue/1eso/earthplanet/bilingue/1eso/earthplanet/representation-types.htmlrepresentation-types.html

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