wmo cloud modeling workshop, warsaw, july 2012 wmo cloud modeling workshop, warsaw, july 2012...
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WMO WMO Cloud Modeling workshop, Warsaw, July 2012Cloud Modeling workshop, Warsaw, July 2012
Idealized Oklahoma squall Line
20 june 2007, reflectivity mosaic
Observation KOUN radar
20 june 2007, reflectivity mosaic
WMO WMO Cloud Modeling workshop, Warsaw, July 2012Cloud Modeling workshop, Warsaw, July 2012ObservationsObservations
WMO WMO Cloud Modeling workshop, Warsaw, July 2012Cloud Modeling workshop, Warsaw, July 2012
Idealized modeling deep convection Idealized modeling deep convection
Modeling with DESCAM3D:Modeling with DESCAM3D:bin (droplets and crystals) resolved cloud microphysicsbin (droplets and crystals) resolved cloud microphysicswithin a 3D dynamical model (dx, dy= 1km, dz =250m)within a 3D dynamical model (dx, dy= 1km, dz =250m)
flow
WMO WMO Cloud Modeling workshop, Warsaw, July 2012Cloud Modeling workshop, Warsaw, July 2012
Modeling deep convection Modeling deep convection
Due to a strong wind shear forcing a convective system develops Due to a strong wind shear forcing a convective system develops which is which is similar to a tropical squall linesimilar to a tropical squall line in horizontal and vertical in horizontal and vertical extension.extension.
WMO WMO Cloud Modeling workshop, Warsaw, July 2012Cloud Modeling workshop, Warsaw, July 2012
Idealized modeling deep convection Idealized modeling deep convection
strong spatial variability in TWC maximastrong spatial variability in TWC maxima
model centermodel center30 km north30 km north
30 km south30 km south
WMO WMO Cloud Modeling workshop, Warsaw, July 2012Cloud Modeling workshop, Warsaw, July 2012
Idealized modeling deep convection Idealized modeling deep convection
A significant variability in TWC appears ranging between 2-9 g/mA significant variability in TWC appears ranging between 2-9 g/m33 Horizontal cross section at Horizontal cross section at z = 10 kmz = 10 km
Partitioning of TWC – LWC – IWC at 10 km (after 280 min)Partitioning of TWC – LWC – IWC at 10 km (after 280 min)
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 3 5 00
5 0
1 0 0
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 3 5 0
0
5 0
1 0 0
Y in
km
0 .511 .522 .533 .544 .555 .566 .577 .588 .59
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 3 5 0X in k m
0
5 0
1 0 0
TWC (g m-3)
LWC (g m-3)
IWC (g m-3)
Droplet number and Ice crystal concentration at 10 kmDroplet number and Ice crystal concentration at 10 km
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 3 5 0
N d ro p s (# /cm 3 )
0
5 0
1 0 0
Y in
km
1 02 03 04 05 06 07 08 09 01 0 011 01 2 01 3 01 4 01 5 0
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 3 5 0
X in k m
N ice c ry s ta ls (# / lite r)
0
5 0
1 0 0
Y in
km
5 0 0 0
1 5 0 0 0
2 5 0 0 0
3 5 0 0 0
4 5 0 0 0
5 5 0 0 0
6 5 0 0 0
7 5 0 0 0
8 5 0 0 0
WMO WMO Cloud Modeling workshop, Warsaw, July 2012Cloud Modeling workshop, Warsaw, July 2012
WMO WMO Cloud Modeling workshop, Warsaw, July 2012Cloud Modeling workshop, Warsaw, July 2012