Data providers

Data providers

Datasets and services powering MariMap maps, metrics reference, and environmental context.

About tiles & attribution

Some layers are served via Reef Support’s internal tiling pipeline (tiles.reef.support). The original data sources are credited below. See the Metrics Reference for definitions and aggregation rules.

Platform data

Data managed within the Reef Support platform.

Reef Support

Data entered and maintained by Reef Support users and partner organizations.

Reference: Reef Support platform data (organizations, projects, sites, surveys) served via Reef Support APIs.

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Travel & destinations

Curated travel locations and destination metadata.

Reef Support Travel

Curated travel destinations and location metadata displayed as map places.

Reference: Reef Support Travel destinations dataset (curated travel locations).

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Maps & geocoding

Basemap styles, satellite imagery, and geocoding services.

Mapbox

Basemap rendering, satellite tiles, and geocoding services used across maps.

Reference: Mapbox basemap styles and satellite imagery; Mapbox Geocoding API for reverse geocoding interactions.

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Boundaries & reference layers

Administrative boundaries and reference layers (World Bank Official Boundaries, Mapbox).

World Bank Official Boundaries

Country and administrative boundary reference used for map interactions and country selection.

Reference: World Bank Official Boundaries dataset (World Bank Data Catalog, dataset 0038272).

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Protected areas

Global protected areas datasets used for overlays and popups.

Protected Planet / WDPA

Global protected areas polygons and attributes used for protected area overlays and popups.

Reference: World Database on Protected Areas (WDPA), September 2025 release (UNEP-WCMC & IUCN).

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Ecosystems & habitats

Habitat and ecosystem extents such as reefs, mangroves, seagrass and saltmarsh.

UNEP-WCMC

Authoritative global habitat layers curated by the UN Environment Programme World Conservation Monitoring Centre.

Reference: UNEP-WCMC coastal habitat datasets (including seagrass and saltmarsh extents).

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Global Mangrove Watch

Mangrove habitat extent used for ecosystem overlays and analysis.

Reference: Global Mangrove Watch (GMW) 2020 global mangrove extent (v3).

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Allen Coral Atlas

Reef extent layer used to visualize coral reef distribution globally.

Reference: Allen Coral Atlas reef extent (2024).

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Taxonomy

Taxonomic references for species naming and classification.

Catalogue of Life

Global taxonomic reference used for consistent species names across datasets.

Reference: Catalogue of Life (COL) taxonomy used for species naming and classification.

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Environmental indicators

Ocean indicators such as temperature, salinity, chlorophyll and currents.

Copernicus Marine Service

Near-real-time and forecast ocean indicators used across site environment charts and map layers.

Reference: Copernicus Marine Service (CMEMS) global ocean products used for SST, salinity, chlorophyll, currents, pH and sea level proxies.

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Products / metrics used in MariMap:

  • Sea surface temperature (SST): Daily gridded SST used as a primary (mangrove) or fallback (coral/seagrass) temperature series.
  • Surface current speed: Daily gridded surface current speed (m/s) used for ocean context.
  • Salinity: Daily gridded sea surface salinity (PSU) used for ocean context.
  • Ocean pH: Daily gridded surface pH used for ocean context.
  • Chlorophyll-a: Daily gridded chlorophyll concentration (mg/m³) used as a productivity proxy.
  • Sea level / tide proxy: Daily sea level anomaly / tide height proxy used for coastal context.

NOAA Coral Reef Watch (CRW)

Bleaching heat stress indicators (SST, HotSpot, Degree Heating Week, and Bleaching Alert Area) used for coral reef sites.

Reference: NOAA Coral Reef Watch (CRW) daily global 5km satellite coral bleaching heat stress products.

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Products / metrics used in MariMap:

  • Sea surface temperature (SST): Daily SST at ~5km resolution used for the SST time series card and MMM/threshold calculations.
  • HotSpot (HS): Daily coral bleaching HotSpot (°C above MMM) used as a heat stress indicator.
  • Degree Heating Week (DHW): Daily accumulated heat stress (°C-weeks) used to summarize bleaching risk.
  • Bleaching Alert Area (BAA, 7-day maximum): Categorical stress level (0–7): 0 No stress, 1 Watch, 2 Warning, 3–7 Alert levels 1–5.
  • SST anomaly (SSTA): Daily SST anomaly (°C), shown when selected.

Copernicus Land Monitoring Service (CLMS)

Global land context layers used for coastal gradients and land pressure context.

Reference: Copernicus Land Monitoring Service (CLMS) global land products accessed via the Copernicus Data Space Ecosystem.

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Products / metrics used in MariMap:

  • NDVI (10-daily): Vegetation index used as a land condition proxy.
  • Land Surface Temperature: 10-daily land surface temperature context.
  • Land Cover (annual): Land cover class fractions for land use context.
  • Tree canopy cover (annual): Pantropical tree canopy density snapshot.
  • Burned area (monthly): Burned area fraction and confidence metrics.

Global Human Settlement Layer (GHSL)

Built-up surface, built volume, and population layers for coastal human pressure context.

Reference: Global Human Settlement Layer (GHSL), Joint Research Centre (JRC), European Commission.

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Products / metrics used in MariMap:

  • Built-up surface: Built-up surface fraction per grid cell.
  • Built volume: Built-up volume proxy for urban intensity.
  • Population: Gridded population counts per epoch.

Survey methods & protocols

Field protocols and analytical methods cited in MariMap guides.

Reef Check Monitoring Protocol

Standardized reef health assessment methods widely used by conservation teams.

Reference: Reef Check Foundation coral reef monitoring protocols for benthic and fish surveys.

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GCRMN Monitoring Methods

Global guidance for consistent coral reef monitoring and reporting.

Reference: Global Coral Reef Monitoring Network (GCRMN) monitoring guidance and indicator framework.

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AGRRA Survey Methods

Regionally focused coral reef monitoring protocols used across the Atlantic and Gulf.

Reference: Atlantic and Gulf Rapid Reef Assessment (AGRRA) field survey methods.

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Reef Life Survey Methods

Global fish and invertebrate survey protocols for biodiversity monitoring.

Reference: Reef Life Survey underwater visual census methods for fish and invertebrates.

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NOAA Coral Disease Resources

Reference materials for identifying and recording coral disease observations.

Reference: NOAA coral disease field resources and identification guidance.

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SeagrassNet Monitoring Protocol

Standardized seagrass cover, density, and biomass survey guidance.

Reference: SeagrassNet global seagrass monitoring protocol for long-term assessments.

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UNEP-WCMC Seagrass Guidance

Supporting references for seagrass monitoring design and interpretation.

Reference: UNEP-WCMC guidance and resources on seagrass monitoring and management.

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Mangrove Watch Protocols

Field methods for mangrove structure, canopy, and regeneration surveys.

Reference: Mangrove Watch monitoring protocols for mangrove condition and change.

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REDD+ Mangrove Carbon Methods

Carbon accounting methods used in REDD+ and blue carbon reporting.

Reference: IPCC Wetlands Supplement guidance for mangrove carbon and biomass accounting.

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Coral Restoration Best Practices

Operational guidance for coral restoration programs and monitoring.

Reference: Coral Restoration Consortium best practices and field guidance.

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Coral Nursery Protocols

Nursery setup, maintenance routines, and fragment handling references.

Reference: Coral nursery design and maintenance guidance from the Coral Restoration Consortium.

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Coral Outplanting Methods

Field methods for securing corals and monitoring early survival.

Reference: Outplanting techniques and site preparation guidance for coral restoration.

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Coral Microfragmentation Methods

Laboratory propagation techniques and growth monitoring references.

Reference: Microfragmentation techniques for accelerated coral growth.

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Z-Score Standardization

Statistical baseline methods used for environmental condition scoring.

Reference: Z-score standardization methods used for statistical anomaly detection.

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NOAA CRW MMM Method

Baseline SST calculation for coral bleaching thresholds.

Reference: NOAA Coral Reef Watch Maximum Monthly Mean (MMM) methodology.

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Degree Heating Week (DHW) Method

Accumulated heat stress metric used to estimate bleaching risk.

Reference: NOAA Coral Reef Watch Degree Heating Week methodology.

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HotSpot Heat Stress Method

Instantaneous heat stress metric derived from SST anomalies.

Reference: NOAA Coral Reef Watch HotSpot calculation for bleaching thresholds.

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Metrics reference