Section 4

General Comments:

The methods section is particularly tough to describe as you have to
include both scientific knowledge and statistical knowledge.  The
methods could be improved by having a beginning paragraph about hte
basic workflow you pursue.  As is, the sections seem rather
disjointed.  Your equations are nicely spread out, and for ht emost
part you describe the variables well.  The order is good, but sections
could transition more smoothly from one to another.  One problem is
that there are some run-on sentences.


Specific comments:

P. 7 4.1 Paragraph 1.  This first sentence is confusing and does not
easily communicate to what you are trying to do.  It is also unclear
where the power described in Equation 3 fits in to the rest.


P. 7 4.1.1 Paragrah 2.  This is a nice sentence that flows well and is
explained succinctly.

P. 8 Paragraph 1.  Perhaps cite Eq (6).

P.8 Paragraph 2.  "The reason is..."  This sentence is difficult to
understand.  Is there a missing verb?  Is 'estimates' the verb?  I
would revise this sentence.

P. 8 4.1.2 Last paragraph 'The variance is' -> "The variance of the
periodogram is"

P. 9 Paragraph 1.  There is a tense shift in 'encountered.'  The next
sentence is a run-on and should be split in to too senetences.

P. 9 Paragraph 2.  Sentence 2.  "We average the remaining windows to
form our estimate.  As long as the anomalies are relatively rare, we
filter only a small number of windows.

P9. "Thus when.." into two sentences.