mo_eckhardt_filter.f90 File Reference

Eckhardt filter for baseflow index calculation. More...

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Modules
module	mo_eckhardt_filter
	Eckhardt filter for baseflow index calculation.

Functions/Subroutines
real(dp) function, dimension(:), allocatable, public	mo_eckhardt_filter::eckhardt_filter_fit (discharge, mask)
	Eckhardt filter for baseflow calculation from discharge time series with fitting.
real(dp) function, public	mo_eckhardt_filter::fit_alpha (discharge, mask)
	Fitted alpha parameter for the Eckhardt filter.
real(dp) function, dimension(:), allocatable, public	mo_eckhardt_filter::eckhardt_filter (alpha, discharge, mask)
	Eckhardt filter for baseflow calculation from discharge time series.
real(dp) function, dimension(:), allocatable, public	mo_eckhardt_filter::weekly_average (discharge, mask)
	This function returns the 7days-averaged discharge.
real(dp) function, public	mo_eckhardt_filter::bfi (baseflow, discharge, mask)
	Calculate the baseflow index as ratio between baseflow and discharge.
real(dp) function	mo_eckhardt_filter::func (pp)
	Target function for fitting Eckhardt filter.

Variables
real(dp), dimension(:), allocatable	mo_eckhardt_filter::temp_d7
logical, dimension(:), allocatable	mo_eckhardt_filter::temp_qmin_mask
logical, dimension(:), allocatable	mo_eckhardt_filter::temp_mask

Detailed Description

Eckhardt filter for baseflow index calculation.

This module provides routines for the Eckardt filter to analyse discharge time series and extract the baseflow. The filter was proposed in Eckhardt (2008, doi: 10.1016/j.jhydrol.2008.01.005)

Version

0.1

Authors

Sebastian Mueller

Mariaines Di Dato

Date

Apr 2022

Copyright

Copyright 2005-2024, the CHS Developers, Sabine Attinger: All rights reserved. FORCES is released under the LGPLv3+ license

The UFZ (CHS) FORCES code 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 FORCES code. 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_eckhardt_filter.f90.