Geoskill: Land Subsidence InSAR
Analyze land subsidence from InSAR displacement data. Use when the user wants to analyze changes, detect hazards, or generate assessment reports.
ruiduobao
@ruiduobao
Install
$ openclaw skills install @ruiduobao/geoskill-land-subsidence-insarLand Subsidence InSAR
Analyze land subsidence from InSAR displacement data.
CLI Usage
python scripts/land_subsidence_insar.py --displacement disp.tif
python scripts/land_subsidence_insar.py --displacement disp.tif --reference baseline.tif
python scripts/land_subsidence_insar.py --displacement disp.tif --output-dir my_output
Data Download
This skill can auto-fetch a Sentinel-1 GRD scene from the Microsoft
Planetary Computer when given a bounding box + date range. The downloaded
asset is then passed through --displacement (note: real InSAR displacement
products require additional SAR processing; the raw backscatter/intensity
is only a rough proxy for subsidence hotspots — see Limitations below).
# Fetch a S1 GRD scene for the Beijing area and analyze
python scripts/land_subsidence_insar.py \
--bbox 116.4,39.9,116.42,39.92 \
--date-range 2024-06-01,2024-06-30 \
--output-dir ./subsidence-output
# Or via an AOI polygon file
python scripts/land_subsidence_insar.py \
--aoi-file ./aoi.geojson \
--output-dir ./subsidence-output
The PYTHONPATH must include the parent of _geoskill_data_fetcher/
(the same directory the 50 skills live in). Set it once:
export PYTHONPATH="/path/to/行业Skill创意-20260727"
Parameters
| Argument | Required | Default | Description |
|---|---|---|---|
--displacement | Yes* | — | Path to InSAR displacement raster (mm, positive = uplift, negative = subsidence) |
--reference | No | — | Optional reference displacement raster for differential analysis |
--bbox | No | — | Bounding box W,S,E,N — auto-downloads S1 GRD from MPC |
--date-range | No | — | Date range START,END (ISO-8601) for auto-download |
--aoi-file | No | — | Path to AOI GeoJSON polygon for auto-download |
--output-dir, -o | No | subsidence-output | Directory to write outputs |
*Required unless --synthetic or --bbox+--date-range is supplied.
Output
| File | Description |
|---|---|
subsidence-report.json | Machine-readable subsidence stats (max/min/mean rate, affected area) |
report.html | Human-readable HTML report |
output-manifest.json | Run metadata + result summary |
Exit Codes
| Code | Meaning |
|---|---|
| 0 | Success |
| 2 | Argument error |
| 7 | Processing failure |
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