Atlas · Comoros / Intelligence Centre
INTELLIGENCE CENTRE · COMOROS

Nature and climate intelligence, from the data to the decision

58,931 mapped features and 38,022 observations from 23 datasets, harmonised to one set of units, with every number traceable to its source.

Mapped mangrove
126 ha
53 polygons · 2020
Change since 1996
−15 ha
−10.7% net, 1996–2025
Datasets
23
58,931 features
Data quality score
97 / 100
55,235 geometries repaired
Provenance coverage
58,931
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
53
Median / mean patch
0.961 / 2.38 ha
Effective mesh size
7.8 ha
Largest patch index
17.0% of area
Patch-size exponent α
1.82
Species & formations

Spatial clustering

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

Moran’s I
0.239
z-score
1.2

Mangrove area is not significantly clustered. 1 hot-spot and 0 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
11 of 9 themes have no data yet
Atlas holds no records for: Salt Marsh, Coastal Forests, Blue Carbon, Restoration Sites, Land Use & Land Cover, People & Settlements, Wildlife & Habitats, Fire & Climate,...
HighGovernance
Licence terms to be confirmed for 8 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...
HighChange
Net loss of mangrove since 1996
Global Mangrove Watch maps 138 ha of mangrove in Comoros in 1996 and 123 ha in 2025: a net loss of 15 ha (-10.7%), about 1 ha per year. This is the net balance of total m...
MediumFragmentation
Most polygons are very small, but most area sits in large stands
18.9% of the 53 mapped polygons are under 0.1 ha, yet patches of 10 ha or more hold 25.8% of all mangrove area. Management and monitoring effort should focus on the large...
All recommendations

Ask the analyst

Plain-English questions, answered with real calculations

See how it works
Latest brief: 4 computed insights: 3 need attention, 1 are worth acting on. Read “Comoros mangrove intelligence brief — 14 October 2026”

Datasets in Atlas

23 datasets from 6 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 · 83 features

Global Mangrove Watch v4.1

Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) · 7 datasets · 347 features

WWF Kenya Sources: GIS Centre of Excellence

WWF Kenya · 8 datasets · 58,492 features

NMC
Roads, Rail & Infrastructure · v1
1
features
polygons
Protected Areas & Landscapes · v1
11
features
Exclusive Economic Zones (EEZ)
Water & Catchments · v1
51
features
Fibre Cable Landing Stations
Roads, Rail & Infrastructure · v1
126
features
Small airport
Roads, Rail & Infrastructure · v1
1,979
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

Berkeley Voluntary Registry Offsets Database (v2026-08)

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

Carbon projects: Comoros
Carbon Projects · v1
1
features

UNEP-WCMC global seagrass and saltmarsh layers

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

Seagrass (UNEP-WCMC): Comoros
Seagrass · v1
1
features

UNDP project data (IATI Registry)

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

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

Data health

The ten lowest-scoring datasets and the local archive

Quality scorecard

Geometry, provenance, flags, duplicates, verification and licence

Carbon projects: Comoros
90
Seagrass (UNEP-WCMC): Comoros
90
Community and nature projects (UNDP): Comoros
90
NMC
95
polygons
95
Exclusive Economic Zones (EEZ)
95
Fibre Cable Landing Stations
95
Small airport
95
World Database on Protected Areas
95
Irrigated Areas
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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