Chapter 10. GIS Data Collection

1. What is the difference between primary and secondary GIS data?
2. Give examples of primary and secondary raster and vector data?
3. Explain the six stages of a GIS data collection project.
4. What is remote sensing?
5. What are passive and active sensors?
6. Explain spatial, spectral, and temporal resolutions of satellite imagery.
7. What is multi-banded imagery?
8. How are aerial photographs usually put into digital form?
9. Are there other alternatives?
10. For what can overlapping images be used?
11. What is the basis of surveying?
12. What are the three elements of the GPS?
13. What is the general principle behind GPS?
14. What is differential GPS?
15. Explain three reasons to scan media for a GIS.
16. What is an unintelligent image or geographic wallpaper (e.g., DRG)?
17. What is manual digitizing and how does it work?
18. What is stream mode digitizing?
19. What are the five basic steps of manual digitizing?
20. What is heads-up digitizing and why do you do it?
21. What are automated vectorization and interactive vectorization?
22. What is softcopy digital photogrammetry and for what is it used?
23. If you can avoid building a database from primary or secondary sources then you will save time and money.  There are many online GIS data sources including the ones listed on the following link (Online Spatial Datasets). Describe two of these web sites.
24. What is the difference between translation and direct read GIS data access?
25. What is the most efficient way to translate between the many geographic data formats?
26. What are the different attribute data collection options and why does each require a key?
27. What is the difference between incremental capture and "Blitzkrieg" and why might you use each?