Accuracy Assessment (Chapters 12 & 13)

1. The textbook mentions that field data serve three purposes. Explain the three purposes.
2. Field data must contain the following types of information:

a) attributes or measurements

b) location information

c) time and date description

d) only a and c

e) all of the above

3. What does biophysical data consist of?
4. What are UAVs and how are they operated?
5. Name three types of GPS errors?

1. What are three purposes of field data?
2. How is a relative reflectance ratio calculated?
3. What does UAV stand for and what is it used for?
4. Which part of the spectrum do GPS satellites operate in?
5. Congalton evaluated five sampling patterns, which did he find was best for a forest image?

1. What is the difference between accuracy and precision?
2. True or False:An error of omission in one category will be tabulated as an error of commission in another category.
3. For an image to be considered satisfactory land-use data for resource management the percentage of correctness must be more than____?
4. What is a perfect kappa(k hat) value?
5. What are “expected” values?

The Classification of late seral forests in the Pacific Northwest, USA using Landsat ETM+ imagery.

1. How did they start this study?
2. What Ancillary Information did they use?
3. How did they optimize the unsupervised classification?
4. What did they discover?
5. What were the technical lessons learned?