heard-island

unverified
v0.1 AOI: bbox 73.36, -53.26, 73.66, -52.96

Active lava detection at Big Ben (Mawson Peak), Heard Island, a remote subantarctic glaciated stratovolcano in the southern Indian Ocean, using Sentinel-2 SWIR and NBR. Big Ben shows intermittent summit lava and flank flows that interact with the island's glaciers to produce lahars. It sits under near-permanent cloud, making the B12 SWIR thermal anomaly the only reliable orbital confirmation of eruptive activity; the cloud ceiling is raised to 95 because visible bands are almost never clear enough to permit optical mapping here.

Primary outputs
result/lava-flow-extent result/dnbr-severity
Show your work
compute/nbr compute/active-lava-mask
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
primary not declared ['result/lava-flow-extent', 'result/dnbr-severity']
show_your_work not declared ['compute/nbr', 'compute/active-lava-mask']

Capabilities it requires

The legacy dialect has no requires: block.

Where it runs

  • Browser preview does not run here compute/active-lava-mask: layer type "raster_timeseries" is not one folia-view parses; compute/cloud-masked: layer type "raster_timeseries" is not one folia-view parses; compute/dnbr: layer type "raster_timeseries" is not one folia-view parses; 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/heard-island/folia.yaml