-values, average windspeed and the median for the average windspeed in m/s, km/h, and knots.
Top of page
Windspeed classification
To ease the understanding of the m/s measurement, the following table can be used.
Windspeed IN m/s
Description
<5
Very slow wind
5-10
Rather slow wind
10-20
Considerable wind, may lead to difficulties
20-30
Very windy, caution is advised
>30
/weather/articles/nr/1283
-values, average windspeed and the median for the average windspeed in m/s, km/h, and knots.
Top of page
Windspeed classification
To ease the understanding of the m/s measurement, the following table can be used.
Windspeed IN m/s
Description
<5
Very slow wind
5-10
Rather slow wind
10-20
Considerable wind, may lead to difficulties
20-30
Very windy, caution is advised
>30
/weather/articles/nr/1283/
volume towards a new steady state of the glacier in the case of a “moderate” step change
in climate.
The relative importance of the mass-balance–elevation feedback and the reduction in ice-
covered area may be analysed with reference to the perturbation equation
d(DV )
dt
= B0+beDA+GeDV = B
0
DV
tV
; (3)
where the volume time-scale tV is given by
tV =
1
( be=H) Ge
; (4)
(Harrison and others, 2001
/media/ces/ces-glacier-scaling-memo2009-01.pdf
the maximum discharge of jökulhlaup water at the glacier
terminus is estimated as 97 m3 s 1. This jökulhlaup was a fast-rising jökulhlaup as
other jökulhlaups in Skaftá and cannot be described by the traditional Nye-theory of
jökulhlaups. The total volume of flood water was estimated as 53 Gl. The average
propagation speed of the subglacial jökulhlaup flood front was found to be in the range
0.2–0.4 m s 1
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_006_tt.pdf
tg
ui
da
n
ce
fo
rt
ra
ns
bo
un
da
ry
w
at
er
s,
pr
ep
ar
ed
an
d
P. van der Keur et al.
(floo
dmanag
ement
)an
d
wat
er
qualit
y
ag
re
ed
u
po
n
in
co
m
m
o
n
u
n
de
rs
ta
nd
in
g,
creat
ed
th
e
bas
is
fo
rth
e
formul
atio
n
o
f
joi
nt
m
ea
su
re
s
(Fr
ijte
rs
an
d
Le
en
tv
aa
r
200
3)
Mo
del
s
(na
tural
,te
chnica
l
an
d
so
ci
al
sy
ste
m
s):
Uncert
aint
y
ha
s
to
be
incorp
orated
:
1:
Ep
ist
/media/loftslag/VanderKeur_etal-2008-Uncertainty_IWRM-WARM.pdf