larsen-b

unverified
v0.2 AOI: bbox -61.50, -66.20, -59.00, -64.90

Two-epoch ice extent of the Larsen B Ice Shelf, Antarctic Peninsula, from Landsat NDSI. Roughly 3,250 km² of shelf that had stood for millennia disintegrated over about five weeks in early 2002; the baseline epoch here is the intact shelf and the recent epoch is the season after the collapse.

License
recipe
Apache-2.0
outputs
CC-BY-4.0
Map preview and live runs are available in the workbench.

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

outputkindlayerwhat it is
ice_baseline answer answer/ice-baseline Pre-collapse proxy ice pixel count.
ice_recent answer answer/ice-recent Post-collapse 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/larsen-b/folia.yaml