openLISEM

This is the 'classic' version of openLISEM, for event based or continuous modelling of runoff, floods and river flow, and sediment dynamics in all flows, in rural and urban environments. Other versions that include landslides can be found at lisemmodel.com

There are now two versions: lisem.exe and lisem4bt.exe. The latter reads all maps as 4byte floating points, saving ~25-35% of RAM space at the cost of prrecision (depending on interface options chosen). Use for very large projects.

last official release: 7.4.8
Beta revision versions with new features and bug fixes: 7.4.8.beta.Rx

251211- v7.4.8.beta.R1-R4

• Added: show buffers in the map view
• Added: add surface micro storage in display map list
• Added: write maps only at the end to speed up modelling scenarios
• Added: 3-layer Green and Ampt infiltration and redistribution: EXPERIMENTAL
• Changed: outpoints and outlets arre always visible in map display, also without channel
• BUG FIX: white culverts were not drawn correctly on screen
• BUG FIX: channels were drawn on screen even if not selected
• BUG FIX: redistribution infiltrated water with Green and Ampt, and is only active after infiltration stops
• BUG FIX: restored "depth of wetting front" map in interface display
• BUG FIX: SWATRE user defined minimum timestep condition was not added inside the time loop in SWATRE

251108 - v7.4.8

• Added: 4Byte instead of double for large domains,read all maps as float (4 byte) instead of double (8 byte), save 40-50% RAM use.
• Added: Different channel shapes: rectangular, circular, trapezium and triangular. The last two are controlled with the channel side angle.
• Added: water in urban storm drains does not dissapear but fills up the storm drains (closed outlet), when full the stormdrains will overflow.
• Added: load stationary baseflow as precalculated map.
• Added: A channel culvert map that has confined flow in these pixels, with shape values: 1=rectangular,2=circular,3=trapezium,4=triangular. note: Culvert type nr 5 is unconfined flow but a culvert.
• Added: Option to stop SWATRE when there is no rainfall or runoff in a cell (faster), for single events.
• Added: Inflow into stormdrains according to water pressure above inlet
• Added: Do erosion calculations inside (slow) or outside (fast) 2D flow loop (Advanced options)
• Added: connection to channel based on hydraulic flow for broad crested weir = default (Advanced options)
• Removed: possibility to do Org Mat. and bulkdensity corrections on Ksat and Porosity in the code. Too complex, user should do this in the input.
• Added: options for adding all calibration parameters as command-line options running in batch mode.
• Changed: channel flow is shown in total discharge on screen and output map (was: only overland flow).
• Changed: Code thread behaviour was obselete. Renewed and cleaned use of the model in a thread separate form the GUI.
• BUG-FIX: bug in culverts, maximum channel discharge was calculated in places where no culverts exist.
• BUG-FIX: SWATRE internal timestep calculation was wrong.
• BUG-FIX: SWATRE evaporation did not work properly.
• BUG-FIX: SWATRE Shared memory structured caused wrong results in parallel computing, showed as striping on screen.
• BUG-FIX: Culverts: fixed confined flow with a Kinematic Wave in culverts and pipes.
• BUG-FIX: running from a batch file, and from a cmd window, with and without GUI.
• BUG FIX: correct calculation and reporting of boundary flow and channel flow.
• BUG FIX: some wrong checks for Missing Value in 2D flow, unknown behaviour.
• BUG-FIX: output tilemaps repaired.

More information is available in the wiki or on: https://lisemmodel.com/ (Both are not complete)

To create a database for the model, read the instructions in the pdf below. Creating the database uses a combination of QGIS, PCRaster and the LISEMDBase generator. The document includes software installation.

Note that the 2D flow code is derived from FullSWOF (Delestre et al.): https://github.com/BUCEA/FullSWOF_Rif

Full Changelog: https://github.com/vjetten/openlisem/commits/lisem_bin