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AR-Tarseem QGIS 4 compatibility
Not QGIS 4 ready Active
Not yet — the latest version declares max QGIS version 3.99.0, so it is not offered to QGIS 4 users.
DEM-to-hydrograph watershed modelling: delineation, special delineation points with reservoir storage routing (modified Puls), SCS-CN/UH design hydrographs (CN from a raster or a single constant value), custom return periods, spatially-variable rainfall via Thiessen stations, four SCS storm types + custom hyetographs, adjustable Ia/S, ARF, Muskingum & Muskingum-Cunge routing, HEC-HMS .basin/.met/.pdata export. Pure NumPy + GDAL.
About
Copyright (C) 2026 Ahmed M. Raslan, PhD & Amr R. Refaiy, PhD - Water Engineering Experts. Released under the GNU General Public License v3.0 or later (GPL-3.0-or-later). AR-Tarseem is a complete DEM-to-hydrograph watershed modelling tool. From a metric DEM and a pour-points layer, it produces: - Streams, Catchments, Longest Flow Paths (three Tc estimates), optional sub-basins / sub-LFPs / reaches / junctions. - Special Delineation Points: enforce junctions at dam locations (snapped to the main flow path), split sub-catchments at the points only or combined with the area-based subdivision, and define any point as a Reservoir with modified-Puls storage routing (elevation-volume curve + spillway/orifice structures, or a storage-discharge table) - with inflow, outflow, attenuation, storage, and stage outputs. - Design-storm hydrographs per catchment / sub-basin / junction / reach: CSVs + interactive HTML charts, with an editable output window so every hydrograph is complete (recession to zero). - Curve Number from a raster (auto-aligned to the DEM) or a single constant value; adjustable lambda = Ia/S (0.01-0.5). - Rainfall: all four SCS/NRCS 24-h distributions or a custom hyetograph CSV; custom return periods; Thiessen station weighting; TRRL-UK / Riyadh / fixed Areal Reduction Factors. - Reach routing: Lag, Muskingum, and variable-parameter Muskingum-Cunge on a trapezoidal channel. - HEC-HMS interchange: .basin (with true Reservoir elements), per-return-period .met files, and a .pdata carrying the reservoir Elevation-Storage tables (HEC-HMS 4.7-4.13 / WMS). - Automatic QML styling. Uses ONLY libraries that ship with QGIS: numpy, osgeo (GDAL), QGIS API. The plugin can also write its network as an AR-Awdiya project file (.json) for further interactive network editing and reporting.
| Author | Ahmed M. Raslan, PhD & Amr R. Refaiy, PhD |
|---|---|
| Downloads | 344 |
| Latest version | 1.0.2 |
| Last updated | 2026-08-16 (60 days ago) |
| Min QGIS | 3.22.0 |
| Max QGIS | 3.99.0 |
| QGIS 4 ready | No |
| Maintenance | Active |
| Category | Hydrology & water |
| Tags | watershed, delineation, muskingum-cunge, custom hyetograph, hec-hms, scs storm types, scs-cn, arf, ar-tarseem, unit hydrograph, nrcs, muskingum, dams, basin export, subbasin, reservoirs, dem, catchment, kirpich, hydrology |
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Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.