columbia-glacier
unverified
v0.2 AOI: bbox -147.40, 60.85, -146.75, 61.35
Two-epoch ice extent of Columbia Glacier, Alaska, from Landsat NDSI. One of the fastest-retreating tidewater glaciers on record: its terminus has pulled back more than 20 km since the early 1980s and the fjord it vacated is now open water.
License
- recipe
- Apache-2.0
- outputs
- CC-BY-4.0
The contract
legacy dialect
Read from this recipe's own declarations — parameters:,
outputs:, requires:, and the ops its layers name. Not from its
style blocks and not from any benchmark: a colour ramp is not a contract, and a measured
run is evidence about one AOI rather than a domain.
Parameters
The legacy dialect has no typed parameter schema. Read the folia.yaml for what this recipe takes; nothing here can type-check it.
Outputs
| output | kind | layer | what it is |
|---|---|---|---|
ice_baseline |
answer | answer/ice-baseline |
Mid-1980s proxy ice pixel count. |
ice_recent |
answer | answer/ice-recent |
Recent proxy ice pixel count. THE answer, read against the baseline. |
ndsi_change |
raster | compute/ndsi-change |
dNDSI raster, recent minus baseline (show-your-work). |
Capabilities it requires
The legacy dialect has no requires: block.
Where it runs
- Browser preview does not run here answer/ice-baseline: layer type "answer" is not one folia-view parses; answer/ice-recent: layer type "answer" is not one folia-view parses; compute/ice-baseline: carries an unsubstituted ${...} template; and 7 more
- Local CLI (folia run) runs here runs locally through the legacy (no spec_version) parser
- Operated fleet (POST /plan, /run) runs here legacy dialect: a lock binds by the cut's layer names, not by digest
open in Workbench
from
registry/recipes/columbia-glacier/folia.yaml