SO432, Geographical Information Systems
Short answer 3 @ 10 30 ___________
Total 100 ___________
Read the directions carefully. You have a selection of questions for all parts of the exam. Carefully select which questions you will answer, and only answer the correct number of questions.
Quality of your answers is important. For full credit you should use correct terminology, and show that you understand the concepts involved.
Definitions: define 10 of these terms with a concise sentence that clearly shows your understanding of the term: Each is worth three points.
Answer 3 of the following 5 short answer questions. Each is worth 10 points.
The maps above show two attempts at digitizing the outline of Greenbury Point at the Naval Station. One has 83 points, and the other 32 points. What is the difference between the two data sets, how could you tell, and what difference does it make?
If you scanned a paper map or chart, what would you have to do make it a usable GIS data base? Would it be a vector or a raster data set, and which would be more useful?
USGS used to use UTM coordinates for all of its digital data sets. Were there any advantages to this type of data, compared to using latitude/longitude spacing?
Does the rise of GIS remove the need for trained cartographers? Why or why not?
You have been asked whether the Navy should use grids or TINs for it bathymetric models. Which would you recommend, and why?.
Answer 2 of the following 3 Longer answer questions. Each is worth 20 points, and you should have a sufficiently detailed answer to show you understand the important points.