Geographic Information

System (GIS)

digitizing

geocoding

DEM (digital elevation model)

DOQ (digital orthophoto

quadrangle)

DRG (digital raster graphic)

TIGER

Metadata

computer assisted

cartography

remote sensing

Landsat 7

SPOT

RADARSAT

topology

principal point

fiducial marks

Iknonos

hyperspectral scanners

raster GIS vs. vector GIS

vertical vs. oblique air photos

flight plan

planimetric shift

orthophoto

photomosaic

stereoscope

atmospheric windows

byte

ground resolution

Enhanced Thematic Mapper

scanner

propaganda

Peters Projection

panchromatic film

“false color”

spatial resolution

brightness value (or digital number)

contrast stretch

multispectral scanner (sensor)

reflected light vs. emitted light

photogrammetry

parallax

Discussion

1. What are the four basic types of data forms? Explain each.

2. A GIS usually includes what capabilities? What is especially important in distinguishing a GIS from a computer cartography program?

3. What are some of the basic components of a GIS (from chap. 21 or http://erg.usgs.gov/isb/pubs/gis_poster/ ? What types (sorts) of things can a GIS do?

4. Provide application examples of GIS.

5. What is the difference between vector and raster digitizing?

6. What is the electromagnetic spectrum? Try to draw a rough diagram.

7. What are the 8 recognition elements used in air photo interpretation?

8. Be familiar with the remote sensing basics found at:

http://observe.arc.nasa.gov/nasa/education/reference/main.html

9. What are the 8 bands (and type of light) recorded by Landsat 7?

10. What are some uses and applications of Landsat data?

11. What are spectral signatures (patterns)? How could this be important? Give an example?

12. What are active vs. passive remote sensing devices? How about photographic vs. digital? Provide examples.

13. What is “image processing”? Provide examples of how this can be used/done.

14. What is change detection used for in remote sensing?

15. In what ways can maps be misleading? Explain (with examples) each way.

16. Be familiar with all lab material.

17. What types of measurements can be made on aerial photographs?

18. How can object height be measured on photographs?

19. How can scale be determined on air photos?

Terms

Discussion