2026-04-09

Bleach Line

The ocean gets a fever. We show you which reefs are burning.

Consumer-facing coral reef bleaching intelligence — an automated, visual, opinionated site that turns NOAA thermal-stress grids, reef habitat maps, species records, and restoration data into reef-by-reef health scorecards, bleaching-risk maps, recovery timelines, and weekly dispatches that tell normal humans what is happening underwater right now.

Niche Explored

Consumer-facing coral reef bleaching intelligence — real-time thermal stress tracking, reef-by-reef bleaching scorecards, recovery timelines, species-at-risk profiles, and climate attribution analysis using satellite sea surface temperature data.

Existing Competition

NOAA Coral Reef Watch — the primary government science source. Daily 5km SST, Degree Heating Weeks, Bleaching Alert Areas. Excellent data but presented as raw science products — maps, NetCDF grids, technical bulletins. Not consumer-readable.
Allen Coral Atlas (Arizona State / Vulcan) — global reef habitat maps, bleaching monitoring system, turbidity detection. Beautiful maps but geared toward reef managers and scientists, not general public storytelling.
The Ocean Agency / XL Catlin Seaview Survey — underwater imagery, Chasing Coral documentary. Powerful visuals but not data-driven weekly content.
Reef Check — citizen science surveys. Great field data but published as annual PDFs, not real-time content.
Global Coral Reef Monitoring Network (GCRMN) — Status of Coral Reefs reports. Published every ~5 years. Major gap in real-time public communication.
ReefBase — WorldFish Center database. Academic reference, minimal public engagement.

Gap identified: No one is translating the daily satellite thermal stress data into beautiful, weekly narrative journalism with reef-level scorecards, recovery tracking, and “which reefs are in trouble right now?” dispatches for divers, snorkelers, tourism operators, marine biology students, and concerned citizens. The data exists. The audience exists. The editorial product does not.

Data Sources Found

NOAA Coral Reef Watch 5km v3.1 — Daily global satellite monitoring. SST, SST anomaly, HotSpot, Degree Heating Weeks (DHW), Bleaching Alert Area. Available via ERDDAP (CoastWatch) as JSON/CSV. 5 datasets confirmed on ERDDAP. URL: https://coastwatch.pfeg.noaa.gov/erddap/griddap/NOAA_DHW_monthly.html — free, no auth, bulk download via OPeNDAP/REST
NOAA Coral Reef Watch Virtual Stations — Time series for ~230 reef sites worldwide. Pre-extracted point data. Downloadable as text/CSV from https://coralreefwatch.noaa.gov/product/vs/data.php
Allen Coral Atlas API — Reef habitat maps, benthic/geomorphic classification. Bleaching monitoring system with severity levels. API available: https://allencoralatlas.org/api/
NOAA OISST (Optimum Interpolation SST) — v2.1 daily, 0.25° resolution. Long-term baseline for anomaly computation. ERDDAP accessible.
ReefBase GIS — reef locations, species records, threats. Downloadable shapefiles.
IUCN Red List API — Conservation status for coral species (798 reef-building coral species assessed). API: https://apiv3.iucnredlist.org/ — free with token.
GBIF — Coral species occurrence records. REST API, no auth needed for search.
OpenAlex — Coral bleaching research papers for citation and “latest science” segments. Free API.
Copernicus Marine Service — Alternative SST products (OSTIA), ocean color (chlorophyll-a as reef health proxy). Free registration.
NASA Worldview / GIBS — Satellite imagery tiles for visual reef context. Free, tile-based API.

SEO Analysis

“coral bleaching” — high search volume, peaks during mass bleaching events (2023-24 generated massive traffic)
“coral reef status” / “coral reef health” — consistent search interest
“Great Barrier Reef bleaching” — extremely high volume during events
“is coral bleaching getting worse” — rising informational query
“coral reef map” — visual intent, highly shareable
Competition is mostly academic papers, news articles (episodic), and NOAA technical pages
Major gap: No ongoing, updated, visually-rich weekly content site. News covers bleaching episodically; NOAA publishes data without narrative. A weekly dispatch site owns the long tail.

Communities

r/marinebiology — 620K+ members
r/reeftank — 500K+ (aquarists who care deeply about wild reefs)
r/scuba — 380K+ (divers who visit reefs)
r/oceanography — growing community
Reef2Reef forums — massive aquarist community
Coral Restoration Foundation social following
Dive travel Facebook groups (hundreds of thousands of members)
Marine conservation Twitter/X community
Coral Triangle Initiative regional networks

Image/Graphic Feasibility

Heat maps: Excellent. DHW and bleaching alert data maps directly to color-gradient heat maps per reef region. Can be auto-generated with D3.js or Observable Plot.
Reef scorecards: Visual report cards with thermal stress gauges, trend sparklines, alert level badges. Highly designable.
Before/after timelines: Historical SST anomaly charts showing bleaching events over time per reef.
Species profiles: IUCN data + AI-generated coral species illustrations.
Globe/map visualizations: Three.js or Mapbox GL for interactive reef maps with real-time thermal overlays.
Limitation: Underwater coral imagery cannot be auto-generated with quality. Use creative commons licensed photos from Coral Reef Watch/NOAA image library (public domain) and link to Allen Coral Atlas imagery.

Market Sizing

~6 million certified scuba divers worldwide (PADI estimates)
Coral reef tourism: $36 billion/year globally
~500 million people depend on coral reefs for food/income
Marine biology is one of the most popular undergraduate degree interests
Reef aquarium hobby: ~$2 billion US market
Climate-concerned general public: massive and growing
Willingness to pay: Dive travelers pay $150-500/day for reef trips. A $5/month “which reefs are healthy?” newsletter is trivial by comparison. Marine conservation donations are proven (Coral Restoration Foundation raises millions).