MIDASFlow is the Python interface to the Memory-Efficient I/O-Improved Drainage Analysis System (MIDAS). MIDAS needs to be installed separately in PATH.
- MIDAS: Core C library and executables (required for all Python, R, and QGIS interfaces)
- r.flowaccumulation: GRASS addon for MEFA
- r.hydrobasin: GRASS addon for MESHED
- r.lfp: GRASS addon for MELFP
- r.upflowlength: GRASS addon for MEUFL
- MIDASFlow-R: R package
- MIDAS-QGIS: QGIS plugin
pip install midasflow- MEFA (Flow Accumulation): Huidae Cho, July 2023. Memory-Efficient Flow Accumulation Using a Look-Around Approach and Its OpenMP Parallelization. Environmental Modelling & Software 167, 105771. doi:10.1016/j.envsoft.2023.105771. Author's Version.
- MESHED (Watershed Delineation): Huidae Cho, January 2025. Avoid Backtracking and Burn Your Inputs: CONUS-Scale Watershed Delineation Using OpenMP. Environmental Modelling & Software 183, 106244. doi:10.1016/j.envsoft.2024.106244. Author's Version.
- MELFP (Longest Flow Path): Huidae Cho, September 2025. Loop Then Task: Hybridizing OpenMP Parallelism to Improve Load Balancing and Memory Efficiency in Continental-Scale Longest Flow Path Computation. Environmental Modelling & Software 193, 106630. doi:10.1016/j.envsoft.2025.106630. Author's Version.
- MEUFL (Upstream Flow Length): Huidae Cho, September 2026. Flow in Float: Memory-Efficient Upstream Flow Length Parallel Computation Using an IEEE-754-Based Union Encoding. Environmental Modelling & Software 204, 107045. doi:10.1016/j.envsoft.2026.107045. Author's Version.
N(.N)*[{a|b|rc}N][.postN][.devN]
- PEP 440
{a|b|rc|.dev}Ntowards and.postNaway from the release- Not fully compatible with semantic versioning
- Not using build numbers marching away from or towards a release, but check this interesting comment.
Copyright (C) 2025-2026 Huidae Cho
This program 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 should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.