Atlas · São Tomé and Principe / Intelligence Centre
INTELLIGENCE CENTRE · SãO TOMé AND PRINCIPE

Nature and climate intelligence, from the data to the decision

62,754 mapped features and 38,022 observations from 20 datasets, harmonised to one set of units, with every number traceable to its source.

Explore Atlas by theme

Mangroves are where Atlas starts. The same platform holds the pressures, places and projects around them for São Tomé and Principe.

All themes
Mapped mangrove
64 ha
14 polygons · 2020
Change since 1996
−1 ha
−1.4% net, 1996–2025
Datasets
20
62,754 features
Data quality score
98 / 100
55,235 geometries repaired
Provenance coverage
62,754
Records traceable to source

The seascape at a glance

Live from Atlas’ own database

Mangrove formations map

Pan and zoom; click a polygon for its area and source

Area by formation

Share of mapped hectares

Mangrove · 100.0%

Landscape science

Computed, reproducible measures (see Methodologies)

Fragmentation

How broken up is the canopy?

Patches
14
Median / mean patch
0.402 / 4.60 ha
Effective mesh size
37.9 ha
Largest patch index
76.0% of area
Patch-size exponent α
1.58
Species & formations

Spatial clustering

Moran’s I and Getis-Ord Gi* on a 5 km grid

Not enough cells
Needs more mapped area.
Spatial analysis

Mangrove area by year

Global Mangrove Watch, hectares

Themes

Where Atlas has data, and where it is still empty

What the analysis says

Top recommendations from the intelligence engine
HighData_gap
13 of 9 themes have no data yet
Atlas holds no records for: Salt Marsh, Coastal Forests, Blue Carbon, Restoration Sites, Carbon Projects, Protected Areas & Landscapes, Land Use & Land Cover, People & Se...
HighGovernance
Licence terms to be confirmed for 6 datasets
Licence terms are being confirmed with the publisher. Atlas holds the data for scientific and internal use and shows the original attribution, but cannot grant bulk redis...
MediumFragmentation
Most polygons are very small, but most area sits in large stands
35.7% of the 14 mapped polygons are under 0.1 ha, yet patches of 10 ha or more hold 76.0% of all mangrove area. Management and monitoring effort should focus on the large...
MediumChange
Net loss of mangrove since 1996
Global Mangrove Watch maps 65 ha of mangrove in São Tomé and Principe in 1996 and 65 ha in 2025: a net loss of 1 ha (-1.4%), about 0 ha per year. This is the net balance...
All recommendations

Ask the analyst

Plain-English questions, answered with real calculations

See how it works
Latest brief: 4 computed insights: 2 need attention, 2 are worth acting on. Read “São Tomé and Principe mangrove intelligence brief — 14 Octob...”

Datasets in Atlas

20 datasets from 5 sources — grouped by where they come from

Global Mangrove Watch v3.0

Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) · 5 datasets · 75 features

Global Mangrove Watch v4.1

Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) · 7 datasets · 77 features

WWF Kenya Sources: GIS Centre of Excellence

WWF Kenya · 6 datasets · 62,600 features

Exclusive Economic Zones (EEZ)
Water & Catchments · v1
51
features
Fibre Cable Landing Stations
Roads, Rail & Infrastructure · v1
126
features
Districts
Boundaries & Reference · v1
6,099
features
World Database on Protected Areas
Biodiversity · v1
7,438
features
Irrigated Areas
Water & Catchments · v1
23,095
features
Agro-Ecological Zones
Boundaries & Reference · v1
25,791
features

UNEP-WCMC global seagrass and saltmarsh layers

UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC) and Short FT · 1 datasets · 1 features

UNDP project data (IATI Registry)

United Nations Development Programme (UNDP) · 1 datasets · 1 features

Data health

The ten lowest-scoring datasets and the local archive

Quality scorecard

Geometry, provenance, flags, duplicates, verification and licence

Seagrass (UNEP-WCMC): São Tomé and Principe
90
Community and nature projects (UNDP): São Tomé and Principe
90
Exclusive Economic Zones (EEZ)
95
Fibre Cable Landing Stations
95
Districts
95
World Database on Protected Areas
95
Irrigated Areas
95
Agro-Ecological Zones
95
Global Mangrove Watch: mangrove extent 2020, São Tomé and Principe
100
Global Mangrove Watch: mangrove extent 1996, São Tomé and Principe
100

Local archive

Atlas runs from its own copy

Last import
14 Oct 2026, 15:38
Snapshots kept
1
Units
ha · m · % · UTC · WGS 84
Sources online?
Not needed. Atlas serves everything from its own database.
Full data-quality report
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