Atlas · Madagascar / Dataset
DATASET

Mahafaly

Mahafaly Plateau Land and Seascape WWF MDCO priority landscapes. Home to the largest remaining expanse of unique spiny forest and the world’s third largest coral reef. Size: 1,825,537 ha - Population: 371,000 Ecosystems: spiny forest, gallery forest, coastal wetlands, lakes, mangrove forest, barrier and fringing reefs, lagoons, small islands, sea grass bed, abyssal slopes, a network of underwater karst caves. Landscape features: world’s 3rd largest coral reef; Tsimanampetsotse and Amoron’i Onilahy National Parks; Marine parks and Locally Managed Marine Areas; Lake Tsimanampetsotse; RAMSAR

View on map
CSV GeoJSON
Features
1
mahafaly
Observations
0
Linked measurements
Quality score
95 / 100
Completeness · provenance · checks
Version
v1
Imported 2026-10-13

About this dataset

Source
WWF Kenya Sources: GIS Centre of Excellence
WWF Kenya
Source layer
Mahafaly (EPSG:102100 (service native); served as EPSG:4326)
Module / ecosystem
ROADS, RAIL & INFRASTRUCTURE
Licence
To be confirmed with the publisher
Licence not stated by the publisher. Atlas holds an archival copy for scientific and internal use. Do not redistribute in bulk without the publisher's permission. Always cite WWF Kenya and the original data owner named in the layer description.
Coordinate system
Stored as EPSG:4326 (WGS 84). Source native: 102100
Records archived
1 (matches the source's own count)

How to cite

WWF Kenya, KMFRI, KFS (2026). Mahafaly. Archived copy held by Atlas Blue Carbon Intelligence (snapshot n/a; SHA-256 3e9fdafc12ac51d7…). Accessed via https://atlas.twende.green/datasets/wf-aef-ii-wwf-priority-landscapes-seascapes-and-development-corridors-49--2602df.

Feature classes

ClassFeatures
mahafaly1

Measurements recorded

Geometry-only dataset
No separate measurements; attributes are shown in the data table.

Unit harmonisation applied to this dataset

Every number in Atlas is stored in one canonical unit; the original value and unit are always kept

Source fieldMeasureSource unitAtlas unitFactorTreatment
hectaresareahaha1kept (unit taken from field name)
Shape_Lengtharea/lengthunknown (often degrees)——excluded unit not stated; geodesic area/length computed from geometry instead
Shape_Areaarea/lengthunknown (often degrees)——excluded unit not stated; geodesic area/length computed from geometry instead
geometryarea / lengthEPSG:4326 degreesha / m—geodesic area (ha), perimeter (m) and length (km) computed on the WGS 84 ellipsoid with PostGIS

Attributes stored per feature

How many features carry each attribute (first 20,000)

AttributeFeatures
attributes1
area_ha_geodesic1
perimeter_m1

Checked against the geometry

Source value ÷ the same quantity computed from the stored shape

No unit checks apply

Archive & integrity

Snapshot
n/a
Format
GeoJSON (gzip pages, WGS 84 as served)
Archive checksum
3e9fdafc12ac51d7b463f1e237d68e982e57c1979cecadfd7fdf771921fa58c8
Atlas serves this dataset from its own archived copy. Nothing is requested from the publisher when you view or download it.

Verification against the raw archive

Record counts match the source
Imported record count equals the source's own count; per-record cross-check recorded in the import run.

Import history

RunStatusStartedRecordsRepaired geometries
#432completed2026-10-13 06:00:14.081319+0010
Guest preview · 148s left Explore until the timer ends. Then you’ll be asked to log in or create an account (about two minutes) to keep going.
Ask Atlas