COPT81

Case description

The COPT81 case is a two-dimensional tropical deep convection case based on the 1981 COPT (Convection Promotion Tensisphere) campaign in the Caribbean.

Configuration

Parameter

Value

Category

Idealized cases

Dynamics

2D non-hydrostatic

Horizontal grid spacing

1.25 km (320x1)

Vertical levels

46

Integration length

10800 s (3 hours)

Time step

5 s

Turbulence

TKEL (3D)

Cloud scheme

LIMA

Deep convection

NONE

Radiation

NONE

Declination

Configuration

Cloud scheme

Description

COPT81_CART

ICE3

Standard cartesian with ICE3

COPT81_CART_LIMA

LIMA

Cartesian with LIMA

COPT81_MASK

ICE3

Masked terrain

COPT81_MASK_LRED

ICE3

Masked with reduced resolution

Steps

Step

Script

001_prep_ideal

run_prep_ideal_case_xyz

002_mesonh

run_mesonh_xyz

Specificities

Scientific specificities

  • 2D tropical deep convection

  • Caribbean soundings

  • Deep convective transport

  • Cloud microphysics (ICE3 or LIMA)

Technical specificities

  • Cartesian 2D domain (320x1)

  • 46 vertical levels

  • Open boundary conditions

  • Masked terrain variants

Validation

  • Vertical velocity profiles

  • Convective available potential energy (CAPE)

  • Cloud properties

Numerical ressources

Single CPU (1 node, 1 core)

References

  • Chauzy, S., Chong, M., Delannoy, A., & Despiau, S. (1985). The June 22 tropical squall line observed during COPT 81 experiment: Electrical signature associated with dynamical structure and precipitation. Journal of Geophysical Research: Atmospheres, 90(D4), 6091-6098.