{"name": "QEHT Engineering Hydrology", "package_name": "qeht", "version": "1.0.1", "experimental": false, "qgis_min": "3.22.0", "qgis_max": "4.99.0", "downloads": 368, "uploaded_by": "EdmondAkello", "upload_datetime": "2026-10-11T04:46:02.155255", "changelog": "1.0.1: Qt6-safe enum names in two fallback branches; tests no longer in the plugin zip; a crossing candidate moved during review is snapped from its new position; coverage check counts the other crossings of a clustered stream (a road beside a river) as covered instead of proposing new crossings on them; DEM uncertainty leaves a crossing unassessed when the snap reaches another channel; user guide and technical manual (docs/user-guide). 1.0.0: first stable release; synthetic example DEM replaces the real-terrain example; tested on QGIS 3.34 and 4.2. 0.27.1: end-to-end check on a synthetic site; DEM uncertainty about 8x faster per realisation (one-pass longest flow lengths); side-drain and mapped-drainage distances as parameters; parameter order and help. 0.27.0: DEM uncertainty at crossings (Monte Carlo with a correlated Gaussian DEM error: P10/P50/P90 and CV of area, flow-path length, 10-85 slope and Kirpich Tc, lost-outlet and switching shares; AW3D30 / FABDEM presets with sources, no silent default). 0.26.0: land-cover scenarios (second land-cover raster through the same lookups and soil groups: CN, C and soil-loss changes per catchment); Graphical Modeler example examples/qeht_corridor.model3. 0.25.0: Clip DEM to the road's contributing area (coarse minimum-block routing, upstream of the road buffer, margin, window read of the full DEM) for large DEMs; pipeline option; clip_edge flag on catchments. 0.24.0: check against mapped drainage (OSM, HydroRIVERS or a national layer): precision, recall and F1 overall and per catchment, agreement per crossing, mapped rivers crossing the road without a crossing, divergence reaches. 0.23.0: KMZ (Google Earth: crossing cards, catchments, flow paths, road with kilometre posts, coverage findings, relief overlay, legend and title block) and XLSX workbook (design column order, units row, frozen panes) exports, pure Python; Export package tool; pipeline exports/. 0.22.0: time of concentration by Kirpich, Kerby + Kirpich, SCS lag, TR-55 segments and Bransby-Williams side by side with validity flags and inputs (none chosen); P2 user value or raster with no default; PROXY sheet n and Kerby N from land cover; table and report section. 0.21.0: Prepare DEM for hydrology (merge tiles, clip with a buffer, bilinear or cubic to the WGS 84 / UTM zone of the extent centre anywhere on Earth or any projected CRS, NoData override, input and output audits, source tags read by the package); optional first step of the pipeline. 0.20.0: side-drain siltation indicator per side along the corridor (overland STI on the cells that drain to each side of the road, relative classes, siltation flag on low-gradient stretches) in Sample erosion along alignment and the package (layer corridor_sti). 0.19.0: approach-channel cross-section downstream of every crossing (bed level, bank-full width and depth by break of slope, widths at bed + 0.5/1/2 m, side slopes, station-elevation list, quality flag; layer xs_transects). 0.18.0: floodplain width indicator at large crossings (profile and HAND, bed + 0.5/1/2 m); raster quicklooks (PNG + world file + legend JSON, rasters index table) in the package and pipeline; terrain under the run-report plan. 0.17.0: one-click hydrology pipeline (fixed output folder, review stop, re-run from settings) with an HTML run report and a catchment characteristics table; Run report tool for any package; rainfall zones, mean annual rainfall and an R estimate per catchment; R from rainfall in the erosion tool. 0.16.0: drainage coverage check along the road (missing crossings, sag points, flat stretches) with proposed crossings delineated in the package; standalone coverage tool; relink keeps status. 0.15.1: .shp outputs are real shapefiles; RUSLE factor range checks (class raster as C refused); raster provenance tags; automatic merge of near-duplicate crossings; candidate layers in Catchment characteristics. 0.15.0: 'Build design hydrology package' (was Build HEAS exchange package; id unchanged); alignment ground profile; overland/channel split of the flow path and basin shape indices; soils from any source (SoilGrids, HWSD units, any polygon map, HYSOGs HSG, K rasters); curve number and Rational C from land cover x HSG; overland STI, crossing deposition indicator and approach/exit channel slopes. 0.14.0: erosion (WP-F) - SPI, TWI, LS, RUSLE with source-tagged factors and LS-only fallback, severity classes, corridor sampler, erosion block and crossing impact score in the HEAS exchange; slope documentation (relief ratio is not a Tc input), lfp_z_head_m / lfp_z_outlet_m / lfp_nonmonotonic. 0.13.1: DEM QA warning for nearest-neighbour resampling; flat-method sensitivity check per catchment (area under both methods, flag); ID prefix applies to sequential IDs only. 0.13.0: Barnes 2014 is the default flat method (WP-G benchmark, 80 Kenyan areas x ALOS/FABDEM vs TauDEM, RichDEM, MAS, DDM); Barnes now identical to RichDEM; flats touching the grid edge or NoData drain; hybrid removed; tested on QGIS 4.2.2 and 3.34. 0.12.0: vectorised core (3.6-5.4x faster), Barnes flow-loop fix, hybrid flat resolution, memory estimate. 0.11.0: soil parameters and USLE K (SOTWIS preset). 0.10.0: road crossing candidates, burn crossings, renumber and relink. 0.9.0: HEAS exchange package, stable outlet_uid, outlet-referenced 10-85 slope, overlapping-catchment polygon fix. See CHANGELOG.md", "external_deps": null, "download_url": "https://plugins.qgis.org/plugins/qeht/version/1.0.1/download/"}