Atlas · Kenya / Dataset
DATASET

Lamu sand and mudflats

Intertidal sand and mudflat polygons (28,296) mapped alongside the mangrove formations.

View on map
CSV GeoJSON
Features
28,296
sand_mudflat
Observations
0
Linked measurements
Quality score
95 / 100
Completeness · provenance · checks
Version
v1
Imported 2026-10-12

About this dataset

Source
WWF Kenya Sources, KMFRI and KFS: Lamu Mangroves Species Formation
WWF Kenya / Kenya Marine and Fisheries Research Institute (KMFRI) / Kenya Forest Service (KFS)
Source layer
Sand_Mudflats (EPSG:32737 (service native); served as EPSG:4326)
Module / ecosystem
MANGROVES · Mangroves
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 KMFRI / KFS where applicable).
Coordinate system
Stored as EPSG:4326 (WGS 84). Source native: 32737
Records archived
28,296 (matches the source's own count)

How to cite

WWF Kenya, KMFRI, KFS (2026). Lamu sand and mudflats. Archived copy held by Atlas Blue Carbon Intelligence (snapshot 2026-10-12T20-27-24Z; SHA-256 80840d983b2134a8…). Accessed via https://atlas.twende.green/datasets/lamu-sand-mudflats.

Feature classes

ClassFeatures
sand_mudflat28,296

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
area_haareahaha1kept (source value)
shape_lenglengthmm1kept; verified against geometry perimeter
st_area(shape)areasquare degrees (EPSG:4326)——excluded not a physical area; replaced by area_ha_geodesic computed from geometry
st_length(shape)lengthdegrees (EPSG:4326)——excluded not a physical length; replaced by perimeter_m computed from geometry
(computed) area_ha_geodesicareageometryha—ellipsoidal area of the stored geometry (WGS 84), computed by PostGIS
(computed) perimeter_m / length_kmlengthgeometrym / km—ellipsoidal perimeter (m) or line length (km), computed by PostGIS

Attributes stored per feature

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

AttributeFeatures
gridcode6,667
perimeter_m6,667
area_ha_geodesic6,666

Checked against the geometry

Source value ÷ the same quantity computed from the stored shape

FieldnMedian ratioVerdict
shape_leng
metres (perimeter)
28,2961.0004consistent

Archive & integrity

Snapshot
2026-10-12T20-27-24Z
Format
GeoJSON (gzip pages, WGS 84 as served)
Archive checksum
80840d983b2134a838bd8821e476d1b90ff1eb015bbae4f75ad9b26420f36eb1
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
#12completed2026-10-12 21:05:40.110469+0028,296587
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