Wflow

* Wflow\_sbm and wflow\_hbv
* Improved kinematic wave solution when iterating: now using states at sub-timestep. This change affects the simulated discharge (timing and peaks) quite a bit (compared to previous versions)
* Changed self.reallength to self.xl and self.yl for cell area calculation, this is more precise for lat lon models
* Small fixes for wflow\_hbv (exporting riverwidth map and "pcr" (PCRaster) missing for accucapacitystate function (pcr.accucapacitystate))
* Fixes and updates for wflow\_topoflex
* Fix glacier melt issue (could contain missing values)
* Fix issue with Numba versions > 0.48 (numba.errors moved to numba.core.errors)

Resolved bug in reservoir\lake functionality in wflow\_hbv.

* Wflow\_sbm
* Improved soil evaporation and transpiration.
* Vertical unsaturated flow (iterations now based on fixed maximum change in soil water per iteration step).
* Interception before snow and glacier modules (total precipitation first intercepted), snow and glacier melt directy available for infiltration into the soil (no interception).
* CFMAX snow parameter now model timestep independent (conversion).
* Convergence criterium for the kinematic wave for subsurface flow changed (very large M model parameter values result in too many iterations).

* BMI
* Removed RTC Tools 1.0 coupling.

* Reservoir module
* Time step max 6 hr (as Lake module), solved completely explicit (no averaging between time steps),
above spillway outflow 100%

* Lake module
* Bug in variablename: changed ReserVoirComplexLocs to LakeLocs

* Glacier modelling
* Updates in wflow\_sbm.py and wflow\_hbv.py
* Added a new map containing glacier IDs: wflow_glacierareas.map.
* Linking the glacier tbl properties (G\_TT, G\_Cfmax and G\_SIfrac ) to the glacier IDs map.
* Renaming the default names of the glacier maps to fit better the wflow schematization (wflow_glacierareas.map, wflow_glacierfrac.map and wflow_glacierstore.map).

* Wflow\_emwaq
* Better separation between the creation of the structure files and the dynamic files generated by the coupling (wflow\_sbm doesn’t need to run anymore to generate structure files).
* Possibility to add a Delwaq input file (.inp) from a template to the generated list of files.
* Possibility to add extra timers file for statistics computation in Delwaq (block 10 of the input file).

* Wflow\_sediment
* General update of the script to match the updates of wflow_sbm since beginning of 2019.
* Better separation of overland flow and river runoff using directly the input from wflow_sbm (RiverRunoff and LandRunoff instead of SurfaceRunoff).
* Added new schematization maps for river characteristics that were also incorporated in wflow_sbm (RiverSlope, wflow_riverlength, wflow_riverwidth).
* Added the possibility to iterate the river transport and processes equations.

* Wflow\_sbm, redesign of lateral subsurface flow because of a bug that resulted in an overestimation of lateral subsurface flux:

* The kinematic wave approach is used to route subsurface flow laterally.
* Kinematic wave solution for surface (overland and river) and subsurface flow added to wflow\_funcs, and used by wflow\_sbm.
Numba (open-source JIT compiler) is used to accelerate these functions. This replaces the PCRaster kinematic wave solution.
* A seperate kinematic wave reservoir for river (self.RiverRunoff) and overland flow (self.LandRunoff)
* Lateral subsurface flow and overland flow feed into drainage network (channel) based on ratio slopes
(slope upstream cell / (slope upstream cell + slope cell))
* Option to provide land slope and river slope (staticmaps)
* Removed sub-grid runoff generation
* Removed re-infiltration of surface water

* Wflow\_hbv uses kinematic wave solution for surface flow available in wflow\_funcs (replacement of PCRaster kinematic wave solution)
* Option to enable iteration (smaller time steps) for kinematic wave solution for surface runoff (wflow\_hbv and wflow\_sbm)
* Added hydrological model wflow\_w3 to wflow framework, based on Australian Water Resources Assessment Landscape model (AWRA-L),
an improved version compared to wflow\_W3RA.
* Added hydrological model wflow\_stream to wflow framework (STREAM (Spatial Tools for River Basins and Environment and Analysis of Management Options)).
* Added experimental version of wflow\_sediment to simulate soil erosion and delivery to the river system.
* Added the wflow\_emwaq module: provides a set of functions to create and link a Delft3D-WAQ or D-Emission model to a wflow model.
* Update of lake modelling for wflow\_hbv and wflow\_sbm (including also Modified Puls Approach) in wflow\_funcs
* Update of glacier model (used by wflow\_hbv and wflow\_sbm)
* Parameter Manning N of river can be linked to streamorder for wflow\_hbv
* setuptools_scm used for version wflow package

first release using python 3.6 and pcraster 4.2

Pre-release before FEWS connection changes integration