Modules

ModuleSource FileDescription
m_modmet_cloud_fraction m_modmet_cloud_fraction.f90

Estimates cloud fraction from measured global radiation and solar geometry. Reference: KNMI WR 83-4 cloud-cover parameterization.
m_modmet_find_zero m_modmet_find_zero.f90

Finds a bracketed root using a safeguarded secant/Regula Falsi hybrid. Reference: KNMI ZEROAB safeguarded root-finding approach.
m_modmet_flxln2 m_modmet_flxln2.f90

Solves for friction velocity and returns associated Obukhov length and radiation terms. Reference: Van Ulden and Holtslag (1985); Beljaars et al. (1989).
m_modmet_fpsim m_modmet_fpsim.f90

Computes the momentum stability correction function psi_m. Reference: Beljaars and Holtslag (1991); Hicks (1976). Computes the momentum stability correction function psi_m using the Holtslag 1984 formulation
m_modmet_helpers m_modmet_helpers.f90

This module defines utility functions to check for missing values in real and integer data. -999 and -9999 are treated as missing values for both real and integer types, with a small tolerance for floating-point comparisons.
m_modmet_lusthov m_modmet_lusthov.f90

Computes near-surface turbulence and flux outputs from forcing and surface inputs. Reference: Beljaars, Holtslag, and Van Westrhenen (1989), KNMI TR-112.
m_modmet_obuk m_modmet_obuk.f90

Computes Obukhov length from friction velocity and temperature scale. Reference: OBUK routine from KNMI legacy implementation.
m_modmet_radiat m_modmet_radiat.f90

Computes incoming shortwave radiation and isothermal net radiation. Reference: Van Ulden and Holtslag (1985), JCAM 24, 1196-1207.
m_modmet_sunhgh m_modmet_sunhgh.f90

This module computes the sine of the solar elevation angle from geographic position and date-time inputs. Reference: Holtslag and Van Ulden (1983), JCAM 22, 517-529.
m_modmet_tst m_modmet_tst.f90

Computes temperature and humidity scales for day/night stability regimes. Reference: Van Ulden and Holtslag (1985), JCAM 24, 1196-1207.
m_modnet_z0corr m_modnet_z0corr.f90

Corrects ustar and Obukhov length to a target roughness length. Assumptions: wind speed at 50 m is roughness-invariant; direct temperature-effect corrections are not applied.
modmet modmet.f90
modmet_constants modmet_constants.f90
module~~graph~~ModuleGraph module~m_modmet_cloud_fraction m_modmet_cloud_fraction module~m_modmet_find_zero m_modmet_find_zero module~m_modmet_flxln2 m_modmet_flxln2 module~m_modmet_flxln2->module~m_modmet_find_zero module~m_modmet_fpsim m_modmet_fpsim module~m_modmet_flxln2->module~m_modmet_fpsim module~m_modmet_obuk m_modmet_obuk module~m_modmet_flxln2->module~m_modmet_obuk module~m_modmet_radiat m_modmet_radiat module~m_modmet_flxln2->module~m_modmet_radiat module~m_modmet_tst m_modmet_tst module~m_modmet_flxln2->module~m_modmet_tst module~modmet_constants modmet_constants module~m_modmet_flxln2->module~modmet_constants module~m_modmet_fpsim->module~modmet_constants module~m_modmet_helpers m_modmet_helpers module~m_modmet_lusthov m_modmet_lusthov module~m_modmet_lusthov->module~m_modmet_flxln2 module~m_modmet_sunhgh m_modmet_sunhgh module~m_modmet_lusthov->module~m_modmet_sunhgh module~m_modmet_lusthov->module~modmet_constants module~m_modmet_obuk->module~modmet_constants module~m_modmet_radiat->module~m_modmet_helpers module~m_modmet_radiat->module~modmet_constants module~m_modmet_sunhgh->module~modmet_constants module~m_modmet_tst->module~modmet_constants module~m_modnet_z0corr m_modnet_z0corr module~m_modnet_z0corr->module~m_modmet_find_zero module~m_modnet_z0corr->module~m_modmet_fpsim module~m_modnet_z0corr->module~modmet_constants module~modmet modmet module~modmet->module~m_modmet_cloud_fraction module~modmet->module~m_modmet_find_zero module~modmet->module~m_modmet_flxln2 module~modmet->module~m_modmet_fpsim module~modmet->module~m_modmet_helpers module~modmet->module~m_modmet_lusthov module~modmet->module~m_modmet_obuk module~modmet->module~m_modmet_radiat module~modmet->module~m_modmet_sunhgh module~modmet->module~m_modmet_tst
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