Atlas · Nigeria / Intelligence Centre
INTELLIGENCE CENTRE · NIGERIA

Nature and climate intelligence, from the data to the decision

638,249 mapped features and 38,022 observations from 29 datasets, harmonised to one set of units, with every number traceable to its source.

Mapped mangrove
822,120 ha
46,453 polygons · 2020
Change since 1996
−32,253 ha
−3.8% net, 1996–2025
Datasets
29
638,249 features
Data quality score
97 / 100
55,235 geometries repaired
Provenance coverage
638,249
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
46,453
Median / mean patch
0.089 / 17.70 ha
Effective mesh size
8,706.2 ha
Largest patch index
4.4% of area
Patch-size exponent α
1.52
Species & formations

Spatial clustering

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

Moran’s I
0.224
z-score
11.1

Mangrove area is significantly clustered. 98 hot-spot and 58 cold-spot cells.

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
12 of 9 themes have no data yet
Atlas holds no records for: Salt Marsh, Coastal Forests, Blue Carbon, Restoration Sites, Protected Areas & Landscapes, Land Use & Land Cover, People & Settlements, Wildli...
HighGovernance
Licence terms to be confirmed for 14 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
53.4% of the 46,453 mapped polygons are under 0.1 ha, yet patches of 10 ha or more hold 97.7% of all mangrove area. Management and monitoring effort should focus on the l...
MediumChange
Net loss of mangrove since 1996
Global Mangrove Watch maps 843,044 ha of mangrove in Nigeria in 1996 and 810,792 ha in 2025: a net loss of 32,253 ha (-3.8%), about 1,112 ha per year. This is the net bal...
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 “Nigeria mangrove intelligence brief — 14 October 2026”

Datasets in Atlas

29 datasets from 7 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 · 210,420 features

Global Mangrove Watch v4.1

Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) · 7 datasets · 295,576 features

WWF Kenya Sources: GIS Centre of Excellence

WWF Kenya · 13 datasets · 77,850 features

Large airport
Roads, Rail & Infrastructure · v1
23
features
Development Corridors
Roads, Rail & Infrastructure · v1
33
features
Exclusive Economic Zones (EEZ)
Water & Catchments · v1
51
features
Fibre Cable Landing Stations
Roads, Rail & Infrastructure · v1
126
features
Rivers
Water & Catchments · v1
228
features
Power Plants (Power output MW)
Roads, Rail & Infrastructure · v1
642
features
Small airport
Roads, Rail & Infrastructure · v1
1,979
features
Dams
Roads, Rail & Infrastructure · v1
2,586
features

Berkeley Voluntary Registry Offsets Database (v2026-08)

Berkeley Carbon Trading Project, University of California, Berkeley · 1 datasets · 10 features

Carbon projects: Nigeria
Carbon Projects · v1
10
features

UNEP-WCMC global seagrass and saltmarsh layers

UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC) and Short FT · 1 datasets · 2 features

Seagrass (UNEP-WCMC): Nigeria
Seagrass · v1
2
features

UNDP project data (IATI Registry)

United Nations Development Programme (UNDP) · 1 datasets · 7 features

Community and nature projects (UNDP): Nigeria
Community Projects · v1
7
features

WWF Kenya GIS Centre of Excellence — full server mirror

WWF Kenya · 1 datasets · 54,384 features

Roads
Reference & context · v1
54,384
features

Data health

The ten lowest-scoring datasets and the local archive

Quality scorecard

Geometry, provenance, flags, duplicates, verification and licence

Carbon projects: Nigeria
90
Seagrass (UNEP-WCMC): Nigeria
90
Community and nature projects (UNDP): Nigeria
90
Large airport
95
Development Corridors
95
Exclusive Economic Zones (EEZ)
95
Fibre Cable Landing Stations
95
Rivers
95
Power Plants (Power output MW)
95
Small airport
95

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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