Transcript Presentation on Ethiopian Approach in Census Cartography To United Nations Regional Workshop on Census Cartography and Management in Lusaka, Zambia, 8-12 October 2007

Presentation on Ethiopian Approach in Census
Cartography
To United Nations Regional Workshop on Census
Cartography and Management in Lusaka, Zambia,
8-12 October 2007
I. Introduction
ETHIOPIA
• Location: 
Astronomically, Ethiopia is found between 3 degree to 15degree north and
33 degree to 48-degree east.
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In relation to its vicinity, the land of Ethiopia is located south of Eritrea,
west of Djibouti, west & northwest of Somalia, north of Kenya, & east of
Sudan in the horn of Africa. Approximately, Addis Ababa is situated around
1866 miles or 3359 K.m northeast of Lusaka.
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The area of the country is about 1,133,380 square k.m, which is the fifth
largest country in Africa.
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Climate:Traditionally, the climate of Ethiopia is divided into three climatic zones
namely Kola, Weina Dega & Dega.
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The Kola, which seems to semi-desert climate, is below 1500m above Sea
level.
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The Weina Dega is between 1500-2400m above Sea level & it is similar
to tropical climate.
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The other zone (Dega) which is higher than 2400m above Sea level
commonly known as temperate climate.
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History:There are historical evidences like the Akusumite Obelisks, the Lalibela RockHewn churches, Fasil Tower, Harar Wall…etc that show Ethiopia shared from ancient
civilization.
Its state history dates back to 3000 years to the Sabian dynasty. And the country has its
own alphabet & calendar; fortunately we are now celebrating the beginning of our third
millennium, which AU recognized it as African millennium.
Economy:Ethiopian economy is dominated by agriculture, which employs about 83.5% of the
population. As to CSA 2006 abstract, the pre capita income is about 150 USD
Population:According to July 2007 estimate of CSA, the population of Ethiopia reaches
77,127,000.Of this 42.6% are under 15 years, 54.5% are between 15-64 years and the
rest 2.8% are above 64 years. This shows that Ethiopia is the third populous country in
Africa next to Nigeria & Egypt.
The general sex is about 100.4 that indicates insignificant variation between male &
female.
Considering ethnicity,about 80 nations & nationalities, which have spoken more than 80
languages .
In relation to religion, the population constitute 51% Orthodox Christian, 33% Islam and
the rest 16% are other religious sects.
The Existing Organizational Structure of CSA
The New Structure of the Central Statistical Agency
Management
Advisory
Committee
Legal
Service
Public Relations
information
dissemination and
Statistical awareness
service
Economic Statistics Deputy Director
General
Natural Resource
& Agricultural
Statistics
Department
Crop
Production &
Land use Stat.
Team
Crop
Forcast,Belg
Season and
Commercial
Farm Stat.
T ea m
Livestock,
Natural
Resource and
Environment
stat. Team
Industry, Trade and
Service Stat.
Department
Manufacturing
Industries Stat.
Team
Constriction,
Energy Mining
&Business
Register
Trade and
Services Stat.
Team
Transport
Communication
and Finance Stat.
Team
Household Budget
Welfare Manufacturing
and Prices Statistics
Department
Household
Budget Welfare
Manufacturing
Stat. Team
Prices and Price
Indices Stat.
Team
Women’s
Affairs
Department
National
Statistics
Council
Director General
Plan,Strategic
Management and Traing
Human Resource
Management
Department
Department
Demographic and Social Statistics
Deputy Director General
Population and
Housing Stat.
Department
Fertility and
Mortality Stat.
Team
Population
Characteristics
and Projection
Stat. Team
Housing
Migration
Urbanization &
Settlement Stat.
Team
Vital Registration
& Stat.istics
Department
Vital Stat.
Team
Vital Registration
Team
Manpower and
Social Stat.
Department
Education,
Culture, Sport
Associations, Law
& order Stat.
Team
Health Nutrition
and social
Welfare Stat.
Team
Manpower Stat,.
Team
Finance
Department
Auditing
and
Inspection
Department
Technical and Material
resource
Administration Service
Operation, Methodology and Data Processing
Deputy Director General
Statistical
Methodology
Department
Sampling
Methodology
Team
Standards
and Survey
Research
Team
Cartographic
and Digitization
Team
Field
Operation
Department
Field Operations
Technical and
Supervision Team
Field Operations
Arrangement
Team
Branch Offices
(30)
Data Processing
Department
Systems &
Programing
Team
Data entry,
Cleaning
and
computer
Operation
Team
Editing,
coding
and
Document
ation Team
ICT Development
Department
Information
Communication
Technology
Infrastructure
Team
Electronic Data
Dissemination
Data Base and
Automation
Team
Geographical
Information
System Team
Printing
Service
Preprinting
Section
Production
and Binding
Section
After 3-5 years thoroughly study the present day
organization structure has become practical last year in
February. According to the new structure, one director
general and three deputy director generals lead CSA.
Currently the Agency has 1569 permanent employees.
• Based on the organization structure mentioned above,
Cartographic & Digitization and Geographic Information
System (GIS) Teams are under the Operation, Methodology
and Data processing deputy director general.
• Both in Cartographic & Digitization and GIS Teams there
is manpower shortage.
Legal legislation of CSA
According the recent & new proclamation, CSA has the
following legal rights & responsibilities:
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The organization (CSA) is responsible for collection,
compilation & dissemination of statistical activities related
to all economic, social &demographic data.
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The proclamation empowers the CSA to be the
country’s official statistical information center.
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The proclamation also forbids any person or
organization in conducting surveys or censuses on the
national level without the consult & permission of the
agency.
Census Cartography
• Since the establishment of CSA Cartographic Team has
been organized under methodology department & done a
lot of cartographic activities. For censuses that were
conducted in 1984 and 1994 the field cartographic work
(the delineation process) was done by visualization
method. And the office mapping process also were done
manually.
• However, for the third round Population & housing
Census, which took places in 2007 the Cartographic Team
changed to Cartographic & Digitization Team when it
proceeds to GPS technology and digitization activities.
The Objectives of Census Cartography
 To determine the need of manpower that will be
participated in the census;
 To distribute equal workload among enumerators;
 For insuring the completeness of coverage;
 For organized & quality control;
 To determine the amount of materials & logistic needs
for the census;
 To establish statistical frames for sample surveys;
 To produce thematic maps for spatial analysis.
• There are different map work steps in our trend. These are:
1.
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Organizing the fieldwork: - In this step preparation of
field work & inventory and identifying available maps are included.
Some of these activities are:
Planning the number of manpower & field equipment need
Estimation of EAs expected
Preparing the time schedule
Buying field equipments, logistics…etc
Buying topographic maps with the scale of 1:50000 for base map
Gathering master plan maps with the appropriate scale for urban
centers
Identifying Sequential number of topographic sheets according to
adjoining by wereda
2. Recruiting and Organizing manpower: - This
becomes the second step. In this step the main duties are recruiting &
training of manpower that run the field work. These are: Recruiting Geographic Assistance (GAs) and Supervisors and trained
them
 Assigning coordinators and trained them.
 To each Team, recruiting and Assigning one driver & one
housekeeper who also responsible to cook food.
• 3. Assigning the field work:- for the third round
population & housing census cartographic work, one team was
consisting of 6 GAs (which is sub-divided into three sub-teams) & one
supervisor . One team is usually assigned to one wereda. In addition ,
5-7 teams were organized under one coordinator.
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4. The actual work in the field:- In this step the major
included duties are:The submission of assignment letter to the wereda administrative
office
Listing the lower administrative units (rural & urban kebeles) and
collective quarters in the wereda office
Delineating the rough boundary of the wereda on topographic base
map with the help of wereda administrators
Based on the rough delineated wereda map, choosing & establishing
camp on suitable part of the wereda
 Submitting letter of assignment to the kebele (lower administrative
units) administrator
 With the help of a person who is assigned from the kebele, taking GPS
reading on the actual boundary of the kebele
 Listing the number of households in the kebele
 According to the criteria given (150-200 HHs for rural kebele & 150200 HUs for urban kebele) delineating the boundary of EA
 In order to write EA boundary description taking reference point at the
time of boundary delineation
 Taking GPS readings for cultural & natural features such as schools,
clinics, hospitals, churches, mosques, cemeteries, mountains,
forests…etc.
All in all the whole cartographic work is based on these activities. If
there is problem in this step, it will be damage to the entire
cartographic work. So care should be taken in each action.
5. After finishing the actual fieldwork, the next step is
preparing various maps from the field information.
i.e.
 Using GPS readings each sub-team establish the kebele & EAs’
boundary on the topographic base map
 Again using GPS readings the sub-teams also mark cultural &
natural features on the topographic base map
 preparing EA map
 Writing EA map description
 Assigning codes for EAs, kebeles, & supervision areas
 Preparing wereda map on transparent paper
 Preparing supervision area maps
 At the end of these processes, the map & map information should
be sent to the agency’s main office without dalliance.
EA MAP
EA MAP DESCRIPTION
SUPERVISION AREA MAP
WEREDA MAP
6. The last step in the census cartographic work is in
the agency’s main office, which includes the following
activities:
 Assigning codes for weredas, towns, zones & kilills and
then preparing codebook
 Editing wereda maps
 Taking tick points to the wereda map for geo-processing
purposes
 Scanning the wereda map
 Based on the tick points geo-processing the wereda map
 Table & screen digitizing the scanned wereda maps
 Preparing digitized maps for production (digitized wereda
map)
 Giving services to CSA offices and outside users
The Results of Census Cartographic work
 The fieldwork in the sedentary areas had finished in this
year March, but in the pastoralist areas we are preparing to
use satellite image. In the pastoralist areas, the census will
be conducted at the beginning of next December.
 In the third round population & housing census 615
weredas have been covered in 75 zones, in all killils by
census cartographic work. In this cartographic work
82,799 enumeration area maps, 16562 supervision area
maps & 615 wereda maps were prepared for the
implementation of the census. And it had undertaken based
on these maps.
 In relation to convert digitized format, among 615 weredas
546 weredas have been digitized by table & screen
digitization.
A
THANK YOU