1. Zanzibar Mapping Initiative
Z M I
Project Overview
My name is Mohammed ZAHRAN from the Commission for Lands Zanzibar, today I respresent
The Zanzibar Mapping Initiative, along with my two colleagues, Khairaat KHAMIS our highly skilled drone operator from the State University of Zanzibar, and Yves Barthelemy our project coordinator
Mohammed ZAHRAN - Commission for Lands Zanzibar
2. Khairaat KHAMIS – State University of Zanzibar
3. Yves BARTHÉLEMY - OBSCOM

2. ZANZIBAR MAPPING INITIATIVE
Project objective :
Updating aerial imagery of zanzibar using drones (mostly Ebee)
Imagery will be made available to all actors under OpenData License and will serve as a basis for updating OpenStreetMap.
Main outputs:
7 cm : over Rural Areas.
2.5 cm over some Urban Areas
High Accuracy Land Use available in Open Data.
The projects main objective is to use UAVs to capture high resolution aerial Imagery that will be used to produce an up to date digital map of Zanzibar
Project objective :
Updating aerial imagery of zanzibar using drones (mostly Ebee)
Imagery will be made available to all actors under OpenData License and will serve as a basis for updating OpenStreetMap.
Main outputs:
7 cm : over Rural Areas.
2.5 cm over some Urban Areas
High Accuracy Land Use available in Open Data.

3. ZMI/ actors involved
COLA: Commission for Lands
Project Client
Coordination with authorities,
Providing surveyors for joining operational teams
COSTECH (
Providing institutional support (authorization, link with Research Institutions…).
Providing drones and expertise.
SUZA, providing:
Facilities : Drone-LAB
Staff: ZANSEA Team / Drone Team
Students: for digitizing imagery and helping in the field.
SUZA TV
SUZA Center for Digital Learning
Project Coordination (YB)
WORLD BANK, providing
Technical support
Financial support: funding DroneAdventure
Funding student work
Sensefly
Providing drones/Training/Support
Drone Adventures, providing
Trainings/Operational support during the project.
STATOIL/ZANSEA:
providing support under ZANSEA project (
OBSCOM
Coordinating operations in Zanzibar
This project main partners are Commission for Lands Zanzibar (COLA) and Commission for Science and Technology Costech,
WorldBank is funding
SenSefly and Drone Adventures are Providing and supporting Drones operations and trainings
SUZA /OBSCOM is providing logistic and fieldwork coordination
STATOIL/ZANSEA is facilitating publishing in Geonode

4. Context Activities Overview
2 islands 2300 km²: UNGUJA (1200 km²) and PEMBA (1100 km²).
Activities Overview
Activity 0 : Training (GIS, Emotion, Pix4D, Drone operations)
Activity 1: Image acquisition campaign “Zanzibar Mission”
Activity 2: Image processing:
Activity 3: Digitization
Project scope is the two island of
Unguja 1200 Square Kilometres and
Pemba 1100 Square Kilometres
There are Four Main Activities involved
Activity 0 : Training (GIS, Emotion, Pix4D, Drone operations)
Activity 1: Image acquisition campaign “Zanzibar Mission”
covering Unguja and Pemba using several drones during an intensive drone campaign.
Activity 2: Image processing:
Creating ortho-imagery of the whole Unguja island
Creating 3D models
Activity 3: Using the information generated
Based on the drone imagery produced, intensive digitization of features in OpenStreetMap.
Based on imagery generated, improvement of environmental baseline information

5. Zoning system = 9 km² zones
239 zones in Unguja
182 zones in PEMBA
The Island are Zoned with 3 by 3 Kilometre grids to produce
239 zones in Unguja
182 zones in PEMBA

6. Operations SUPPORT JOINT TEAMS SUZA/ZANSEA Drone LAB COLA
Students
Processing Center
Drone Workshop
Osm map parties
COLA
Authorizations
Quality Control
Surveyors
Drone Teams (2 to 4)
1 car
3 drones
3 Members
Flight Planner
Logistician
Data Management
The Operations are coordinated through the State University, by providing the energetic workforce for workflow management and data processing,
The Commission for Lands provides Technical Surveyors and facilitate authorizations

7. Interactive Map synchronized with Spreadsheet GIS Mapping
Operations
GoogleSpreadsheet
logsheet
Interactive Map synchronized with Spreadsheet
There is an interactive grid on the map that enable tracking the progress of the field operations
GIS Mapping

8. Dissemination Data accessible on ZANSEA Geonode.
Data is made accessible through ZANSEA Geonode

9. Coastal mapping : sand, coral, …
Here is an example of coastal image showing sand and coral

10. Human-use : tourism activity along the coast
We can sense accurately the tourism hotels and get exact property or land coverage

11. Human activities along the coast
Some human activities like sports grounds

12. Socio-Economic Features
We can locate some local fisheries activites

13. Coastal environment: Mangroves
Some costal mangrove forest monitoring

14. Kibele Landfill site
Monitor Landfill sites

15. Future use of Drone imagery in Zanzibar (1/2)
Application
Institution interested
GIS Expertise
Open Street Map improvement
WorldBank
Digitization
Land fill monitoring
ZEMA, DOE, LAND HOUSE
3D extraction, Volume Calculation, Photo- Interpretation.
Flood prone areas mapping
3D Extraction
DEM – Hydrology applications
Flood monitoring
Flood Mapping.
Coral reef health mapping
SUZA/TROCEN, IMS, WCS,
Object oriented-classification,
Marine mammals surveys and monitoring
WCS, SUZA/TROCEN
Automatic detection,
Spatial distribution,
Fishing vessels counting
Bathymetry
Energy, SUZA/TROCEN
Classification
Interpolation
These high resolution imagery could be put to many use cases in the future such as
Open Street Map improvement
Land fill monitoring
Flood prone areas mapping
Flood monitoring
Coral reef health mapping
Marine mammals surveys and monitoring
Fishing vessels counting
Bathymetry

16. Future use of Drone imagery in Zanzibar (2/2)
Application
Institution interested
GIS Expertise
Coastal Erosion
All
Photo-Interpretation, Digitization
Seaweed mapping
WorldBank , IMS, DoURP, Fisheries
EIA-inforcement
ZEMA, DOE
Photo-Interpretation, Classification, Mapping
Land-use /Land-Cover changes
Classification, Change detection mapping
Terrestrial Protected areas monitoring
DoFNR
Change detection, Mapping
Sea level rise
TROCEN, IMS, DoURP, Fisheries
3D generation, DEM spatial analysis.
Health: Malaria
Ministry of Health
Tourism promotion
ZCT, Tourism actors in general
Corridor mapping
ZAWA, ZEMA, ZECO, Oil and Gas companies in general,
E- Learning in GIS
SUZA
Computer science Capacity Building
Coastal Erosion
Seaweed mapping
EIA-inforcement
Land-use /Land-Cover changes
Terrestrial Protected areas monitoring
Sea level rise
Health: Malaria /Cholera
Tourism promotion
Corridor mapping
E- Learning in GIS
Computer science Capacity Building

17. ZMI/Conclusion At the end of the project, COLA will have
UNGUJA and PEMBA covered with 7 and 2.5 cm High Resolution Imagery to create a Base Map and its Digital Cadastre
SUZA will have:
Highly skilled staff at SUZA in : GIS, Drone Mapping, Photogrammetry, 3D, Geospatial image servers, …
Students enrolled in GIS activities.
An up and running Drone Lab at SUZA within the GIS Centre.
A success story for all partners involved.

18. SUZA/ ZANSEA team involved
To follow the project
On ZANSEA Facebook:
Our interactive map: