EC-M-1.1 v1.0.0 GA

Biome Baseline BB

Reference ecological condition by biome and ecoregion, refreshed annually.

The denominator behind every parcel-level signal. Published per WWF biome and ecoregion so users can interpret a parcel's score relative to its natural reference. Versioned annually as new ground truth becomes available.

Twelve-month sample series

A representative parcel under EC-M-1.1, July 2025 through June 2026. The line is the published value at each monthly vintage; the band is the 95% confidence interval. Past vintages are immutable — this same chart, queried in 2040, returns the same values.

Biome Baseline (BB) — sample monthly series

parcel us-vt-orange-a3f2 · methodology EC-M-1.1 · v1.0.0 · illustrative, not for citation

Sample · illustrative

Sample observation

A complete response object for this signal at a sample location and as-of date. Every field below appears on every observation; signal-specific structure lives under components.

200 OK · application/json GET /v1/signals/biome-baseline

{
  "signal_id": "biome-baseline",
  "version": "1.0.0",
  "methodology_version": "EC-M-1.1",
  "as_of": "2026-04-30",
  "vintage_pinned": true,
  "value": 0.81,
  "biome": "temperate-broadleaf-mixed",
  "ecoregion": "NA0410",
  "lineage": {
    "inputs_count": 8,
    "computation_graph": "https://api.earth-signals.com/v1/signals/biome-baseline/lineage/0xa3f2..."
  }
}

How to query

The signal is queried at the canonical /v1/signals/{id} endpoint. Required parameters are a location and an as-of date. The same query replayed in 2040 returns the same value.

curl https://api.earth-signals.com/v1/signals/biome-baseline \
  -H "Authorization: Bearer es_preview_..." \
  -d "lat=44.4654" \
  -d "lng=-72.6874" \
  -d "as_of=2026-04-30"

Endpoint and tokens shown for spec illustration. The Earth Signals API is in private beta with named design partners; the underlying Earth API and Calculator API are live.

The full parameter table — point query, parcel id, polygon aggregation, methodology pinning — is in the API reference.

Audiences that lean on this signal

Research & academia Universities, NGO scientists, government labs. Indices & reference rates Index publishers, ETF issuers, benchmark administrators. Public sector & multilateral Federal agencies, multilateral banks, sub-national governments. Education & civic Schools, museums, civic-engagement platforms.

Citation

Landseed PBC. Biome Baseline (BB), version 1.0.0, methodology EC-M-1.1. Earth Signals canonical signal layer. DOI forthcoming.

Cite the catalog id, the signal version, the methodology version, and the as-of date. Together these define a reproducible observation forever — independent of methodology revisions.