Listen to the River is a satellite-based flood analysis project focused on Somali river systems, with a published Baladweyne 2023 case study that combines optical water mapping, SAR change analysis, and impact-layer storytelling in one web dashboard.
# Listen to the River
`Listen to the River` is a satellite-based flood analysis project focused on Somali river systems, with a published Baladweyne 2023 case study that combines optical water mapping, SAR change analysis, and impact-layer storytelling in one web dashboard.
## Published focus
This first public repo pass is centered on:
- the Baladweyne, Somalia flood event of November 2023
- a cleaned static web dashboard under `baladweyne-2023/ui/`
- the supporting scripts, summaries, and lightweight geodata needed to explain and reproduce the published case study surface
The broader early-warning research workspace exists, but the heavier local-only processing branches and raw rasters are intentionally excluded from the public repo surface.
## What this project does
The Baladweyne case study was built to answer a practical question:
`What flood story can be defended when optical, radar, and impact layers are combined into one interpretable event map?`
The published workflow uses:
- `Sentinel-2` water detection to establish the main event footprint
- `Sentinel-1` pre/post-event change analysis to recover additional flood fringe context
- agreement filtering between the two sources to isolate a stricter confidence core
- impact overlays against roads, buildings, and named places to translate water extent into human relevance
## Baladweyne 2023 summary
Current tracked summary from the published event pack:
- final story mask: `196.03 km²`
- strict S1/S2 overlap core: `72.60 km²`
- selected SAR-only extensions: `92.35 km²`
- total affected buildings: `6,460`
- total affected roads: `542`
- total affected named places: `19`
These numbers are stored in:
- `baladweyne-2023/analysis/final_story_mask/summary.json`
- `baladweyne-2023/analysis/final_story_impacts/impact_summary.json`
- `baladweyne-2023/analysis/mask_consensus/summary.json`
## Repository layout
- `baladweyne-2023/`
- published event case study
- `baladweyne-2023/ui/`
- static dashboard …