NAM_SURF_ATM

Warning

This namelist comes from SURFEX 9.0.0 user guide https://www.umr-cnrm.fr/surfex/IMG/pdf/surfex_tecdoc.pdf.

NAM_SURF_ATM content

Fortran name

Fortran type

Default value

XCISMIN

REAL

6.7E-5

XVMODMIN

REAL

0.0

LALDTHRES

LOGICAL

.FALSE.

LDRAG_COEF_ARP

LOGICAL

.FALSE.

LALDZ0H

LOGICAL

.FALSE.

LNOSOF

LOGICAL

.TRUE.

LSLOPE

LOGICAL

.FALSE.

LCPL_GCM

LOGICAL

.FALSE.

XEDB

REAL

5.0

XEDC

REAL

5.0

XEDD

REAL

5.0

XEDK

REAL

1.0

XUSURIC

REAL

1.0

XUSURID

REAL

0.035

XUSURICL

REAL

4.0

XVCHRNK

REAL

0.015

XVZ0CM

REAL

0.0

XDELTA_MAX

REAL

1.0

XRIMAX

REAL

0.2

LVERTSHIFT

LOGICAL

.FALSE.

LVZIUSTAR0_ARP

LOGICAL

.FALSE.

LRRGUST_ARP

LOGICAL

.FALSE.

XVZIUSTAR0

REAL

0.0

XRZHZ0M

REAL

1.0

XRRSCALE

REAL

1.15E-4

XRRGAMMA

REAL

0.8

XUTILGUST

REAL

0.125

LCPL_ARP

LOGICAL

.FALSE.

LQVNPLUS

LOGICAL

.FALSE.

LVSHIFT_LW

LOGICAL

.FALSE.

LVSHIFT_PRCP

LOGICAL

.FALSE.

XCO2UNCPL

REAL

‘none’

LARP_PN

LOGICAL

.FALSE.

LCO2FOS

LOGICAL

.FALSE.

  • LALDTHRES : flag to set a minimum wind and shear like done in Arpege model.

  • XCISMIN : minimum wind shear to compute turbulent exchange coefficient (used only if LALDTHRES)

  • XVMODMIN : minimum wind speed to compute turbulent exchange coefficient (used only if LALDTHRES)

  • LDRAG_COEF_ARP : to use drag coefficient computed like in Arpege models

  • LALDZ0H : to take into account orography in heat roughness length

  • LNOSOF : no parameterization of subgrid orography effects on atmospheric forcing

  • LSLOPE : If True, correct parameterization of incoming radiations for homogeneous explicit slopes. If True, LNOSOF=F.

  • LCPL_GCM : flag used to red/write precipitation forcing from/into the erstart file for ARPEGE run

  • XEDB, XEDC, XEDD, XEDK : coefficients used in Richardson critical numbers computation

  • XUSURIC, XUSURID, XUSURICL : Richardson critical numbers

  • XVCHRNK, XVZ0CM : Charnock’s constant and minimal neutral roughness length over sea (formulation of roughness length over sea)

  • XDELTA_MAX : maximum fraction of the foliage covered by intercepted water for high vegetation

  • XRIMAX : limitation of Richardson number in drag computation

  • LVERTSHIFT : vertical shifth from atmospheric orography to surface orography

  • LVZIUSTAR0_ARP : flag to activate arpege formulation for zoh over sea

  • LRRGUST_ARP : flag to activate the correction of CD, CH, CDN due to moist gustiness

  • XVZIUSTAR0 : arpege formulation for zoh over sea

  • XRZHZ0M : arpege formulation for zoh over sea

  • XRRSCALE : arpege formulation for zoh over sea

  • XRRGAMMA : arpege formulation for zoh over sea

  • XUTILGUST : correction of CD, CH, CDN due to moist gustiness

  • LCPL_ARP : activate arpege formulation for Cp and L

  • LQVNPLUS : An option for the resolution of the surface temperature equation (Arpege)

  • LVSHIFT_LW : flag to activate/deactivate vertical shift for LongWave radiations

  • LVSHIT_PRCP : flag to activate/deactivate vertical shift for Precip

  • XCO2UNCPL : key for decoupling between CO2 employed for photosynthesis and radiative CO2 (in ppmv).

  • LARP_PN : Activate ARPEGE PN values for Cv and TAU_ICE

  • LCO2FOS : if activated, add fossil fuel emissions to natural CO2 emissions from ISBA