The observed travel time differences already mentioned can either be obtained from absolute times of
measured (picked) phase arrivals (logged in earthquake catalogs) or as relative times between phases
measured with cross-correlation (CC) of waveforms. CC between closely spaced earthquakes can give
highly accurate relative time differences between phases, and can correct bad picks from
/media/norsem/norsem_begga.pdf
et
al
.(
200
4)
21
.Explici
tconsideratio
n
o
funcertaint
y
(relate
dt
o
CC
impacts
)
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s
ar
e
no
t
glosse
d
ove
r
bu
tcommunicate
d
(in
fina
lreports
,orally
)
Diet
z
et
al
.(
200
3),
Brugnac
h
et
al
.(
200
8)
Researcher
s
ar
e
willin
g
to
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k
wit
h
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abou
tuncertaintie
s
Diet
z
et
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.(
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et
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.(
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22
.Broa
d
communicatio
n
(on
CC
impacts
/media/loftslag/Huntjens_etal-2010-Climate-change-adaptation-Reg_Env_Change.pdf
An analysis of simulated and observed storm
characteristics
- Can we expect a change in the future?
R.E. Benestad, CES, June 01 2010
Number of cyclones:
RCM
analysis
CCI
(Benestad & Chen, 2006) righttoleftmark
No change in storm frequency?
RCM:
N corresponds
|v| too high
...or simulated wind speeds?
•CCI
•triangulation
Method: storm characteristics
RCM: storms too small
too strong.
Gradient
/media/ces/Benestad_Rasmus_CES_2010.pdf