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DATASET

Lamu mangrove swamp blocks (KFS management blocks)

The five mangrove swamp blocks defined by Kenya Forest Service in the Mangrove Management Plan, within which species formations were mapped.

View on map
CSV GeoJSON
Features
5
management_block
Observations
0
Linked measurements
Quality score
80 / 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
MangrovesSwamps_Blocks (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
5 (matches the source's own count)

How to cite

WWF Kenya, KMFRI, KFS (2026). Lamu mangrove swamp blocks (KFS management blocks). Archived copy held by Atlas Blue Carbon Intelligence (snapshot 2026-10-12T20-27-24Z; SHA-256 d3142447176b8598…). Accessed via https://atlas.twende.green/datasets/lamu-mangrove-swamp-blocks.

Feature classes

ClassFeatures
management_block5

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
f2018area_, f2008_mang, f2000_mang, f1990_mangareaunknown——excluded all values are 0 (unpopulated placeholders, not measurements)

Attributes stored per feature

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

AttributeFeatures
area_ha_geodesic5
perimeter_m5
qa5

Checked against the geometry

Source value ÷ the same quantity computed from the stored shape

FieldnMedian ratioVerdict
shape_leng
metres (perimeter)
51.0002consistent

Archive & integrity

Snapshot
2026-10-12T20-27-24Z
Format
GeoJSON (gzip pages, WGS 84 as served)
Archive checksum
d3142447176b85987b525f379d501e5a33f20cd680b6b3863ad015adb9f23a65
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
#8completed2026-10-12 21:05:37.349764+0050
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