Atlas · Angola / 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
1,485,178 / 1,485,178
Every feature traced to its source
Geometries repaired
86
Invalid shapes fixed on import
Datasets with a stated licence
15 / 99
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
Global Mangrove Watch: mangrove extent 202...
100/100
3,0953,09500000 stated
Global Mangrove Watch: mangrove extent 199...
100/100
3,0153,01500000 stated
Global Mangrove Watch: mangrove extent 200...
100/100
3,2893,28900000 stated
Global Mangrove Watch: mangrove extent 201...
100/100
2,8612,86100000 stated
Global Mangrove Watch: mangrove extent 201...
100/100
2,8142,81400000 stated
Global Mangrove Watch v4.1: mangrove exten...
100/100
2,6972,69700000 stated
Global Mangrove Watch v4.1: mangrove exten...
100/100
2,4982,49800000 stated
Global Mangrove Watch v4.1: mangrove exten...
100/100
2,6672,66700000 stated
Global Mangrove Watch v4.1: mangrove exten...
100/100
2,8652,86500000 stated
Global Mangrove Watch v4.1: mangrove exten...
100/100
2,9172,91700000 stated
Global Mangrove Watch v4.1: mangrove exten...
100/100
3,4783,47800000 stated
Global Mangrove Watch v4.1: mangrove exten...
100/100
4,2854,28500000 stated
High Biodiversity Areas
95/100
3302000 not stated
Oil and Gas Basins
95/100
4400000 not stated
Basins_KAZA
95/100
4400000 not stated
KAZA TFCA Boundary
95/100
5500000 not stated
Lion Population Estimates
95/100
5502000 not stated
Buffalo Population Estimates
95/100
5502000 not stated
Loss of Livestock to Wildlife
95/100
5502000 not stated
Decrease of Crop Loss to Wildlife
95/100
5502000 not stated
House Holds Voluntarily Settled Outside of...
95/100
5502000 not stated
Number of Communities where HWC Mitigation...
95/100
5502000 not stated
National Park Tourists
95/100
5502000 not stated
Community Revenues from Concession Agreeme...
95/100
5502000 not stated
UniVisas
95/100
5502000 not stated
Buffalo_Population
95/100
5502000 not stated
Community_Revenues_from_Concession_Agreeme...
95/100
5502000 not stated
Decrease_of_Crop_Loss_to_Wildlife
95/100
5502000 not stated
Elephant_Population
95/100
5500000 not stated
House_Holds_Voluntarily_Settled_Outside_of...
95/100
5502000 not stated
KAZA_TFCA_Boundaries
95/100
5500000 not stated
Lion_Population
95/100
5502000 not stated
Loss_of_Livestock_to_Wildlife
95/100
5502000 not stated
National_Park_Tourists
95/100
5502000 not stated
Number_of_Communities_where_HWC_Mitigation...
95/100
5502000 not stated
UniVisas
95/100
5502000 not stated
Potential Hydropower Plant
95/100
7700000 not stated
Africa_Water_Towers
95/100
7700000 not stated
PotentialHydropowerPlant
95/100
7700000 not stated
Hydrobasin
95/100
9900000 not stated
National Parks
95/100
202000000 not stated
National_Parks
95/100
202000000 not stated
ZA_Conservancies
95/100
212100000 not stated
Irrigation Systems
95/100
232300000 not stated
Irrigation_Systems
95/100
232300000 not stated
Lakes
95/100
262601000 not stated
Lakes
95/100
262601000 not stated
Planned Major Roads and Rails
95/100
333300000 not stated
Development Corridors
95/100
333300000 not stated
Urban_Population
95/100
949400000 not stated
Fibre Cable Landing Stations
95/100
12612600000 not stated
Primary Road
95/100
13413400000 not stated
Primary_Road
95/100
13413400000 not stated
Airstrips
95/100
16516500000 not stated
Airstrips
95/100
16516500000 not stated
Protected Area
95/100
19119100000 not stated
Rivers
95/100
22822800000 not stated
Fragmentation Protected Areas
95/100
27927900000 not stated
Fragmentation_Protected_Areas
95/100
27927900000 not stated
KAZA Protected Areas
95/100
28028000000 not stated
Medical Facilities
95/100
36236200000 not stated
Hospitals
95/100
36236200000 not stated
ProtectedAreas_AfricaPriorityLandscapes
95/100
49249204000 not stated
Trunk Roads N12
95/100
52052000000 not stated
towns and settlements
95/100
61161120000 not stated
Mining Claim
95/100
61961900000 not stated
Mining_Claims
95/100
61961900000 not stated
Power Plants (Power output MW)
95/100
64264200000 not stated
Powergrid
95/100
67867800000 not stated
Powergrid
95/100
67867800000 not stated
AfricaPriority_River
95/100
85785700000 not stated
Peri_Urban_Population
95/100
1,0731,07300000 not stated
Small airport
95/100
1,9791,97900000 not stated
District Roads N12
95/100
2,1582,15800000 not stated
ZA_Animals_Groups_Trend
95/100
2,2592,25900000 not stated
Dams
95/100
2,5862,58600000 not stated
Districts
95/100
6,0996,099013000 not stated
World Database on Protected Areas
95/100
7,4387,43801000 not stated
Rivers
95/100
7,5267,52600000 not stated
Rivers
95/100
7,5267,52600000 not stated
Populated_places
95/100
8,1498,14930000 not stated
Electricity Transmission Network
95/100
9,7599,75900000 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
Wetlands -Lakes -Reservoirs
95/100
34,11534,11501000 not stated
Waterways
95/100
35,61935,61900000 not stated
Detailed Road Network
95/100
44,13344,13300000 not stated
Detailed_Road_Network
95/100
44,13344,13300000 not stated
Seagrass (UNEP-WCMC): Angola
90/100
2200000 —stated
Salt marsh (UNEP-WCMC): Angola
90/100
4400000 —stated
Community and nature projects (UNDP): Ango...
90/100
111100000 —stated
Roads
95/100
54,38454,38400000 not stated
Rural_Population
95/100
60,22260,22200000 not stated
Population
95/100
61,38861,38800000 not stated
GeneralPopulat_FeatureToPoin
95/100
61,38861,38800000 not stated
General_Population__2016_
95/100
61,38861,38800000 not stated
Settlement
95/100
275,904275,90400000 not stated
Road Network
95/100
584,033584,03300000 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.
Guest preview · 180s 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