Atlas · Malawi / Data Quality
DATA

Data Quality

A transparent scorecard for every dataset: valid shapes, provenance coverage, internal consistency, verification and licence clarity. Known issues are listed openly so scientists can judge fitness for use.

Average score
95 / 100
Across all datasets
Features with provenance
3,664,659 / 3,664,659
Every feature traced to its source
Geometries repaired
48,772
Invalid shapes fixed on import
Datasets with a stated licence
2 / 38
Others held for internal use

Scorecard

Score = valid geometry 30% · provenance 25% · no flagged values 15% · unique IDs 15% · verification 10% · licence 5%

DatasetScoreFeaturesProvenanceNo geometryRepairedDuplicate IDsFlaggedRejected valuesVerifiedLicence
SADC_TFCAs
95/100
565601000 not stated
Basin (Hydroshed Level 6)
95/100
595907000 not stated
basins_names_hydroshed
95/100
11311307000 not stated
Gauging Stations
95/100
20620600000 not stated
Rivers
95/100
22822800000 not stated
LGAs
95/100
26426402000 not stated
Basin (Hydroshed Level 8)
95/100
58058007000 not stated
Power Plants (Power output MW)
95/100
64264200000 not stated
AfricaPriority_River
95/100
85785700000 not stated
urt_catchments
95/100
1,4841,484018000 not stated
Main Roads
95/100
1,5981,59800000 not stated
Small airport
95/100
1,9791,97900000 not stated
Dams
95/100
2,5862,58600000 not stated
Basin (Hydroshed Level 10)
95/100
2,6962,696010000 not stated
Districts
95/100
6,0996,099013000 not stated
World Database on Protected Areas
95/100
7,4387,43801000 not stated
urt_basin
95/100
7,7407,74005000 not stated
Rivers
95/100
8,9978,99700000 not stated
Electricity Transmission Network
95/100
9,7599,75900000 not stated
Fire Incidences Grid (2000-2019)
95/100
14,69214,69200000 not stated
MARXAN-CRUZ PU SF-Score
95/100
14,69214,69200000 not stated
MARXAN-CRUZ PU Status
95/100
14,69214,69200000 not stated
MARXAN-CRUZ PU SF-Score
95/100
14,69214,69200000 not stated
MARXAN-CRUZ PU Status
95/100
14,69214,69200000 not stated
LULC 2010 NAFORMA
95/100
16,87116,87101,259000 not stated
Divisions
95/100
17,64917,64909000 not stated
Irrigated Areas
95/100
23,09523,09501000 not stated
Agro-Ecological Zones
95/100
25,79125,791017000 not stated
lulc_2015_naforma
95/100
33,43533,43500000 not stated
Carbon projects: Malawi
90/100
141400000 —stated
Community and nature projects (UNDP): Mala...
90/100
7700000 —stated
LULC 2025 BAU Min. Scenario
95/100
181,238181,23803,341000 not stated
LULC 2025 GE Scenario
95/100
329,368329,36808,517000 not stated
LULC 2025-GE Scenario
95/100
336,993336,993011,594000 not stated
LULC 2025-BAU Min. Scenario
95/100
342,044342,04403,671000 not stated
LULC 2025 BAU Max. Scenario
95/100
525,756525,75607,959000 not stated
LULC 2025-BAU Max. Scenario
95/100
736,076736,076012,333000 not stated
FB-AI-Population Distribution
95/100
969,481969,48100000 not stated

Known issues & assumptions

Stated plainly so nobody is surprised later
Field-plot canopy cover above 100%
One or more plots report a cover value over 100% (up to 6,070). That cannot be a percentage, so Atlas rejects the value, keeps the original and flags the plot.
Field-survey photos are not in the archive yet
The 139 plot photographs are not part of the archive yet. Their original links are kept, so the photos can be added when the publisher shares the image files.
No licence stated by the publisher
Atlas holds an archival copy for scientific and internal use and asks users to cite WWF Kenya, KMFRI and KFS. We are seeking written permission for wider redistribution.
Degree-based length and area fields excluded
Several source fields (st_area, st_length, Shape_Leng) are in degrees or square degrees, not metres or hectares. Atlas excludes them and recomputes from geometry.
Turtle timestamps assumed UTC
The source gives times without a time zone. UTC is assumed (standard for satellite telemetry) and the assumption is recorded with the data.
Unpopulated historic-area fields
The mangrove block layers carry 1990–2018 area fields that are all zero. They are treated as empty placeholders, not measurements.
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