mo_mhm.f90 File Reference

Call all main processes of mHM. More...

Go to the source code of this file.

Modules
module	mo_mhm
	Call all main processes of mHM.

Functions/Subroutines
subroutine, public	mo_mhm::mhm (read_states, tt, time, processmatrix, horizon_depth, ncells1, nhorizons_mhm, c2tstu, neutron_integral_afast, evap_coeff, fsealed1, interc, snowpack, sealedstorage, soilmoisture, unsatstorage, satstorage, neutrons, pet_calc, temp_calc, prec_calc, aet_soil, aet_canopy, aet_sealed, baseflow, infiltration, fast_interflow, melt, perc, prec_effect, rain, runoff_sealed, slow_interflow, snow, throughfall, total_runoff, alpha, deg_day_incr, deg_day_max, deg_day_noprec, deg_day, frac_roots, interc_max, karst_loss, k0, k1, k2, kp, soil_moist_fc, soil_moist_sat, soil_moist_exponen, jarvis_thresh_c1, temp_thresh, unsat_thresh, water_thresh_sealed, wilting_point, no_count, bulkdens, latticewater, cosmicl3)
	Pure mHM calculations.

Detailed Description

Call all main processes of mHM.

This module calls all processes of mHM for a given configuration. The configuration of the model is stored in the a process matrix. This configuration is specified in the namelist mhm.nml.

The processes are executed in ascending order. At the moment only process 5 and 8 have options.

Currently the following processes are implemented:

Process	Name	Flag	Description
1	interception	1	Maximum interception
2	snow and melting	1	Degree-day
3	soil moisture	1	Feddes equation for ET reduction, Brooks-Corey like
3	soil moisture	2	Jarvis equation for ET reduction, Brooks-Corey like
3	soil moisture	3	Jarvis eq. for ET red. + FC dependency on root frac. coef.
4	direct runoff	1	Linear reservoir exceedance
5	PET	-1	PET is input, LAI based correction, dynamic scaling func.
5	PET	0	PET is input, Aspect based correction
5	PET	1	Hargreaves-Samani
5	PET	2	Priestley-Taylor
5	PET	3	Penman-Monteith
6	interflow	1	Nonlinear reservoir with saturation excess
7	percolation and base flow	1	GW linear reservoir
8	routing	0	no routing
8	routing	1	use mRM i.e. Muskingum
8	routing	2	use mRM i.e. adaptive timestep

Changelog

• Luis Samaniego, Rohini Kumar Dec 2012
  • modularization
• Luis Samaniego Feb 2013
  • call routine
• Rohini Kumar Feb 2013
  • MPR call and other pre-requisite variables for this call
• Rohini Kumar May 2013
  • Error checks
• Rohini Kumar Jun 2013
  • sealed area correction in total runoff
  • initalization of soil moist. at first timestep
• Rohini Kumar Aug 2013
  • dynamic LAI option included, and changed within the code made accordingly (e.g., canopy intecpt.)
  • max. canopy interception is estimated outside of MPR call
• Matthias Zink Feb 2014
  • added PET calculation: Hargreaves-Samani (Process 5)
• Matthias Zink Mar 2014
  • added inflow from upstream areas
• Matthias Zink Apr 2014
  • added PET calculation: Priestley-Taylor and Penman-Monteith and its parameterization (Process 5)
• Rohini Kumar Apr 2014
  • mHM run with a single L0 grid cell, also in the routing mode
• Stephan Thober Jun 2014
  • added flag for switching of MPR
• Matthias Cuntz & Juliane Mai Nov 2014
  • LAI input from daily, monthly or yearly files
• Matthias Zink Dec 2014
  • adopted inflow gauges to ignore headwater cells
• Stephan Thober Aug 2015
  • moved routing to mRM
• Rohini Kumar Mar 2016
  • changes for handling multiple soil database options
• Rohini Kumar Dec 2016
  • changes for reading gridded mean monthly LAI fields
• Stephan Thober Jan 2017
  • added prescribed weights for tavg and pet
• Zink M. Demirel C. Mar 2017
  • added Jarvis soil water stress function at SM process(3)
• M.Cuneyd Demirel & Simon Stisen May 2017
  • added FC dependency on root fraction coef. at SM process(3)
• M.Cuneyd Demirel & Simon Stisen Jun 2017
  • added PET correction based on LAI at PET process(5)
• Robert Schweppe, Stephan Thober Nov 2017
  • moved call to MPR to mhm_eval
• Robert Schweppe Jun 2018
  • refactoring and reformatting
• Robert Schweppe Nov 2018
  • added c2TSTu for unit conversion (moved here from MPR)
• Rohini Kumar Oct 2021
  • Neutron count module to mHM integrate into develop branch (5.11.2)
• Stephan Thober Jan 2022
  • added is_hourly_forcing
• Sebastian Mueller May 2022
  • added temp_calc and prec_calc for coupling to other models

Authors

Luis Samaniego

Date

Dec 2012

Copyright

Copyright 2005-2025 , the mHM Developers, Luis Samaniego, Sabine Attinger: All rights reserved. mHM is released under the LGPLv3+ license


The UFZ(CHS) mesoscale hydrologic model mHM is free software. You can redistribute it and/or modify it under the terms of the GNU General Public License as published by the free Software Foundation either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You received a copy of the GNU Lesser General Public License along with the UFZ CHS mesoscale hydrologic model mHM. It can be found in the files COPYING and COPYING.LESSER provided with this software. The complete GNU license text can also be found at http://www.gnu.org/licenses/.

Definition in file mo_mhm.f90.