**SO503 Spring
2003**

**Test 2**

** **

**Exam makeup**

Definitions

5 at 4 points each 20
__________

Short
answer:

4 at 20 points each 80
__________

Total 100
__________

**Definitions: **answer with no more than a single sentence.

** **

**Short Answer:** The questions should be answered with one or two good paragraphs. They should show thought, and understanding
of the concepts involved. There are
fewer questions, so each should show more effort.

** **

**Definitions**: Define 5 of the following 9 terms with one or two complete
sentences.

·
Nyquist
sampling frequency:

·
Drumlin:

·
Roche
moutonee:

·
Multi
beam bathymetry:

·
Lag:

·
Negative
correlation:

·
Two
byte integer:

·
Autocorrelation:

·
Active
sensor:

·
Geosynchronous
orbit:

**Short Answer**. Answer 4 of the 5 short
answer questions on these pages.

1. What does this diagram from
EOS show, and how was the data collected?
Insure that you cover exactly what the two axes show.

2.
What
does this graph from EOS show?

·
Why
is the vertical scale on one of the graphs reversed?

·
Can
you think of a statistical test you could run on this data, how you would set
it up, and what it would show?

3. This figure is from the Ocean Circulation book used in
SO231. It shows the results of an FFT
analysis. Explain how that analysis works,
and what this diagram shows. What might
limit the periods computed to less than 48 hours?

4. You are tasked to design a spy
satellite. Discuss

·
How
the S/N ratio (signal to noise) affects the decision on what resolution to
seek, the number and location of spectral bounds.

·
How
the computer processing required will be affected by your selection of bands
and resolution.

**5**. What does a chi-squared test tell how? How do you set it up, and how do you
evaluate the results?