National Aeronautics and Space Administration

MODULES

ALLOMETRYFN

Physics-level functions to calculate plant physiological state, allometry (geometry and biomass), and tissue properties, shc, and initial C_labile. Individual level, NO knowledge of entcells, patches, or cohort struct. Used for initialization of vegetation structure, updating phenology and growth, and calculating biophysical state.

BIOPHYSICS

the biophysics and prescribed LAI.

COHORTS

Routines to organize cohorts within an entcell.

DISTURBANCE

ENT

main program.

ENTCELLS

entcells contains routines to perform summaries at the ent grid cell level.

ENT_CONST

have the GCM/EWB constants substituted in for coupled runs.

ENT_DEBUG_MOD

ENT_MOD

this module contains the interface to Ent dynamic vegetation model this is the only module that should be visible to GCM

ENT_PFTS

Parameter sets fo Ent default supported 16 plant functional types. (Early successional types do not have cover and are not tested, yet).

ENT_PRESCRIBED_DRV

!* SUBROUTINES TO READ IN prescribed VEGETATION DATA SETS !+ for initialization and updating prescribed cover like crops. !* Array data only, no entcells or patches info. !* Interfaces with ent_prescr_veg for Matthews pft-level calculations !* or with ent_prescribed_drv_geo for geographic initialization.

ENT_PRESCRIBED_DRV_GEO

ent_prescr_veg_geo Module of routines to read geographic cover, max LAI, canopy heights, and calculate plant densities and carbon pools. Also, routine to read geographic initial LAI.

ENT_PRESCRIBED_UPDATES

Routines for updating prescribed vegetation. These routines work on the entcell level or lower.

ENT_PRESCR_VEG

7/1/2012 - Replaced with different subroutine - NK

ENT_TYPES

FARQUHARBBPSPAR

Module Ent plant functional type (PFT) parameters for Ent 16 PFTs default. for Farqhuar-von Caemmerer (1982) photosynthesis and Ball-Berry (1985) stomatal conductance.

PATCHES

Routines to organize patches in an entcell.

PHENOLOGY

budburst/leafout, albedo change, senescence

PHOTCONDMOD

Photosynthesis and stomatal conductance at the leaf level at the physical time step. Photosynthesis from Farquhar and von Caemmerer (1982) and Stomatal conductance from Ball and Berry (1985, 1987). Cubic solution to coupled equations by I. Aleinov, this module. Main routine pscondleaf is called by the canopy biophysics module which scales up fluxes from the leaf to the canopy level. Physiological status routines, frost_hardiness and par-phenology, are necessary for seasonal variation in leaf photosynthetic capacity in biophysics-only runs, and are also used by the phenology module when prognostic phenology is run.

PHYSUTIL

Physics utility functions.

REPRODUCTION

Routines to calculate reproduction rates in an entcell.

RESPAUTO_PHYSIO

Routines to calculate autotrophic respiration and physiological status like water stress, and diagnostics like ci. This module is entirely physics-level and has no knowledge of ent data structures. Respiration routines include those by plant component and plant carbon pool size, and fluxes from: leaf dark respiration, photosynthetic activity growth respiration, maintenance respiration, tissue growth respiration (from phenology/growth module, distributed over the day at physical time step), and estimation of a plant's daily respiration requirement. Physiological routines include water stress routines and other miscellaneous. Called by module photcondmod, canopy biophysics, and phenology

SOILBGC

microbial dynamics, C & N pools, respiration and N fluxes.