Coral Reefs

Coral reefs on TerraPulse are organized into the coral_reef_station Locationdex — one slot per survey site, each a place where a reef was actually visited and its condition measured, drawn from EPA coral reef surveys. No estimates, no forecasts.

The dexes

The sites live in a single Locationdex, one slot per surveyed reef station:

That is 77 reef survey sites across two Caribbean surveys — a real, sited record of where reef condition was assessed.

Provenance

Every site traces to the U.S. EPA coral reef surveys — the Puerto Rico 2011 survey and the U.S. Virgin Islands 2009 survey. Both sources are registered against the dex, so any record on TerraPulse carries a direct line back to the originating EPA survey visit.

What’s in a record

Each site slot carries:

• Site — survey station identifier
• Location — latitude and longitude on the reef
• Survey — the Puerto Rico 2011 or U.S. Virgin Islands 2009 assessment
• Condition metrics — the reef and water-quality parameters recorded at the site
• Depth — where recorded