mo_snow_accum_melt Module Reference

Snow melting and accumulation. More...

Functions/Subroutines
subroutine, public	snow_accum_melt (deg_day_incr, deg_day_max, deg_day_noprec, prec, temperature, temperature_thresh, thrfall, snow_pack, deg_day, melt, prec_effect, rain, snow)
	Snow melting and accumulation.

Detailed Description

Snow melting and accumulation.

This module calculates snow melting and accumulation.

Authors

Vladyslav Prykhodko

Date

Dec 2012

Copyright

Copyright 2005-2024, 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/.

Function/Subroutine Documentation

snow_accum_melt()

subroutine, public mo_snow_accum_melt::snow_accum_melt	(	real(dp), intent(in)	deg_day_incr,
		real(dp), intent(in)	deg_day_max,
		real(dp), intent(in)	deg_day_noprec,
		real(dp), intent(in)	prec,
		real(dp), intent(in)	temperature,
		real(dp), intent(in)	temperature_thresh,
		real(dp), intent(in)	thrfall,
		real(dp), intent(inout)	snow_pack,
		real(dp), intent(out)	deg_day,
		real(dp), intent(out)	melt,
		real(dp), intent(out)	prec_effect,
		real(dp), intent(out)	rain,
		real(dp), intent(out)	snow
	)

Snow melting and accumulation.

Separates throughfall into rain and snow by comparing the temperature with the treshhold. by comparing the temperature with the treshhold. Calculates degree daily factor. Calculates snow melting rates. Calculates snow, rain and effective precipitation depth and snow pack.

Parameters

[in]	REAL(dp) :: deg_day_incr	Increase of the Degree-day factor per mm of increasein precipitation [s-1 degreeC-1]
[in]	REAL(dp) :: deg_day_max	Maximum Degree-day factor [m-1 degreeC-1]
[in]	REAL(dp) :: deg_day_noprec	Degree-day factor with no precipitation [m-1 degreeC-1]
[in]	REAL(dp) :: prec	Daily mean precipitation [m]
[in]	REAL(dp) :: temperature	Daily mean temperature [degreeC]
[in]	REAL(dp) :: temperature_thresh	Threshold temperature for snow/rain [degreeC]
[in]	REAL(dp) :: thrfall	Throughfall [m TS-1]
[in,out]	REAL(dp) :: snow_pack	Snow pack [m]
[out]	REAL(dp) :: deg_day	Degree-day factor [m s-1 degreeC-1]
[out]	REAL(dp) :: melt	Melting snow depth [m TS-1]
[out]	REAL(dp) :: prec_effect	Effective precipitation depth (snow melt + rain) [m]
[out]	REAL(dp) :: rain	Rain precipitation depth [m]
[out]	REAL(dp) :: snow	Snow precipitation depth [m]

Authors

Vladyslav Prykhodko

Date

Dec 2012

Definition at line 70 of file mo_snow_accum_melt.f90.

Referenced by mo_mhm::mhm().

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