The output of the RICO intercomparison case Margreet van Zanten Photo courtesy Bjorn Stevens KNMI, The Netherlands.

The output of the RICO intercomparison case

Margreet van Zanten

KNMI, The Netherlands

LES participants

model mom. adv. scalar adv. SGS model

DALES CD CD Deardorff

RAMS@NOAA CD Monotone (?) Deardorff

RAMS ? ? Deardorff

UKMO PW adv Monotone Smagorinsky

JAMSTEC CD CD Deardorff

WVU CD PPM (?) Deardorff(?)

SAM CD Monotone 1,5 order TKE

MESO-NH CD CD Deardorff

COAMPS ? ? ?

DHARMA UTOPIA UTOPIA Smagorisnky

UCLA CD, 4th monotone Smagorisnky

LES participantsmodel microphysics timestep

[s]# proc

duration

[hours]

DALES 2nd moment, Nc fixed 1 8 190

RAMS@NOAA bin model (33) 2 32 5400

RAMS 2nd moment +CCN 2 1(?) weeks

UKMO 2nd moment, Nc fixed ~0.7 4 500

JAMSTEC 1st moment 1 1 68

WVU 2nd moment, Nc fixed ~1.65 1 72

SAM 1st moment 2 64 320

MESO-NH 1st moment, Kessler 1 12 440

COAMPS ? ? ? ?

DHARMA bin model (33) 3.5 256 10.000

UCLA 2nd moment, Nc fixed ~1.5 16 80

Mean thermodynamic state 8 th 16 th and 24 th hour

20-24 hours

U, V 20-24hours

ql, qr 20-24 hours

Liq. Water pot. Temp. flux

20 – 24 hours

Total water flux20 -24 hours

Vert. vel. Variance20 -24 hours

TKE 20 – 24 hours

Vert. velocity skewness20 -24 hours

Cloud and core fraction

23 – 24 hours

Massflux 23-24 hours

Timeserie various z and tke

Sens. and latent heat flux

LWP, RWP and cc

Precipitation

Precipitation and evaporation

Nr and Nc

SAMEX: System for Atmospheric Modeling with Explicit Microphysics

Yefim Kogan and David Mechem

University of Oklahoma

ww [m2 s-2] cpwv [W m-2] Lwqt [W m-2]

TKE [m2 s-2] ql [g kg-1] R [mm d-1]

Mean profiles from 10-11 h

**PRELIMINARY RESULTS**

Mean profiles from 8-12 h and 20-24 h

Horizontal/VerticalRatio 1:3

Newer cellDecaying cell… mostly drizzle

Decaying cell… mostly drizzleNewer cell

Horizontal/VerticalRatio 1:3

20 – 24 hours

20 – 24 hours