Nature and climate intelligence, from the data to the decision
231,506 mapped features and 37,971 observations from 23 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 Guinea-Bissau.
The seascape at a glance
Live from Atlas’ own databaseMangrove formations map
Pan and zoom; click a polygon for its area and source
Area by formation
Share of mapped hectares
Landscape science
Computed, reproducible measures (see Methodologies)Fragmentation
How broken up is the canopy?
- Patches
- 12,944
- Median / mean patch
- 0.175 / 22.95 ha
- Effective mesh size
- 2,179.4 ha
- Largest patch index
- 2.4% of area
- Patch-size exponent α
- 1.46
Spatial clustering
Moran’s I and Getis-Ord Gi* on a 5 km grid
Mangrove area is significantly clustered. 67 hot-spot and 36 cold-spot cells.
Spatial analysisThemes
Where Atlas has data, and where it is still emptyWhat the analysis says
Top recommendations from the intelligence engineAsk the analyst
Plain-English questions, answered with real calculations
Datasets in Atlas
23 datasets from 5 sources — grouped by where they come fromGlobal Mangrove Watch v3.0
Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) · 5 datasets · 62,673 features
| Global Mangrove Watch: mangrove extent 2020, Guinea-Bissau Mangroves · v1 |
11,763 features | |
| Global Mangrove Watch: mangrove extent 1996, Guinea-Bissau Mangroves · v1 |
13,923 features | |
| Global Mangrove Watch: mangrove extent 2007, Guinea-Bissau Mangroves · v1 |
13,710 features | |
| Global Mangrove Watch: mangrove extent 2010, Guinea-Bissau Mangroves · v1 |
11,525 features | |
| Global Mangrove Watch: mangrove extent 2015, Guinea-Bissau Mangroves · v1 |
11,752 features |
Global Mangrove Watch v4.1
Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) · 7 datasets · 93,668 features
| Global Mangrove Watch v4.1: mangrove extent 2025, Guinea-Bissau Mangroves · v1 |
15,271 features | |
| Global Mangrove Watch v4.1: mangrove extent 2020, Guinea-Bissau Mangroves · v1 |
12,944 features | |
| Global Mangrove Watch v4.1: mangrove extent 2015, Guinea-Bissau Mangroves · v1 |
12,262 features | |
| Global Mangrove Watch v4.1: mangrove extent 2010, Guinea-Bissau Mangroves · v1 |
11,949 features | |
| Global Mangrove Watch v4.1: mangrove extent 2005, Guinea-Bissau Mangroves · v1 |
13,375 features | |
| Global Mangrove Watch v4.1: mangrove extent 2000, Guinea-Bissau Mangroves · v1 |
13,503 features | |
| Global Mangrove Watch v4.1: mangrove extent 1996, Guinea-Bissau Mangroves · v1 |
14,364 features |
WWF Kenya Sources: GIS Centre of Excellence
WWF Kenya · 9 datasets · 75,157 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 | |
| Districts Boundaries & Reference · v1 |
6,099 features | |
| World Database on Protected Areas Biodiversity · v1 |
7,438 features | |
| Electricity Transmission Network Roads, Rail & Infrastructure · v1 |
9,759 features | |
| Irrigated Areas Water & Catchments · v1 |
23,095 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): Guinea-Bissau Seagrass · v1 |
1 features |
UNDP project data (IATI Registry)
United Nations Development Programme (UNDP) · 1 datasets · 7 features
| Community and nature projects (UNDP): Guinea-Bissau Community Projects · v1 |
7 features |
Data health
The ten lowest-scoring datasets and the local archiveQuality scorecard
Geometry, provenance, flags, duplicates, verification and licence
| Seagrass (UNEP-WCMC): Guinea-Bissau | 90 | |
| Community and nature projects (UNDP): Guinea-Bissau | 90 | |
| Fibre Cable Landing Stations | 95 | |
| Rivers | 95 | |
| Power Plants (Power output MW) | 95 | |
| Small airport | 95 | |
| Districts | 95 | |
| World Database on Protected Areas | 95 | |
| Electricity Transmission Network | 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.