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Project
3: Map
Revision Using High Resolution Satellite Data
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ITEM |
DETALIED DESCRIPTION |
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Introduction |
To keep the national
map series up to date, they normally require periodic
revision. Traditionally this was done periodically by
carrying out aerial photography for the area that is due
for revision. For most of the countries, this frequent
revision of maps is now not done. The reason is that aerial
photography is very expensive. Also for governments faced
with difficult economic situations, map revision is no
longer a priority. However this situation is not helpful,
for outdated maps are useless. A map is supposed to reflect
what is on the ground and an outdated map is not meeting
this requirement, especially I this era of rapid changes
due to development. This means for the maps to remain
useful a new approach for their updating must be found.
This where high- resolution satellite data becomes very
useful. Current and almost timely satellite data can be
obtained at very reasonable cost. It is also available
in digital, hardcopy of photographic forms. Using modern
technology this useful data can easily be used for map
revision. |
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Objectives |
The main objective
of this project is to develop a facility via which all
the member states will be able to revise their maps and
so justify the need for financing map production. When
the only available maps are out of date, stakeholders
do not see the need for spending large sums of funds on
mapping programmes. In this project, the main objectives
will be to acquire the map routines available in the developed
countries, acquire the necessary hardware and software
and train cartographers in the use of these systems. The
next stage will be the acquisition of satellite data in
all the necessary forms, that is digital, film and hard
copy. A pilot project will then be carried out for Namibia.
Following the successful implementation of this pilot
project, the experience and techniques developed will
be adopted in other member states. |
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Justification |
An old and out
dated map is of no use to any one. This is because a map
is supposed to be a representation of what is actually
on the ground. This then means the Map can be used as
a source of information for planning and decision- making.
Since aerial photography as a source of data for map revision
is very expensive and beyond the means of most countries
in the region, another methods for map revision must be
adopted for maps to remain relevant in the development
process. Data acquired by satellites is becoming affordable
and its increasing high resolution is making it usable
for map revision. Further the use of GIS and other computer
techniques has simplified data manipulation and application
for map production through digital mapping applications.
Also the speed at which maps can be produced digitally
is very high and makes this technique very justifiable
to the financiers and decision makers. Added to this advantage
is the continuous and timely availability of satellite
data, which means that we can now update the maps much
more frequently and accurately. Also the adaptation of
digital mapping by our cartographers will reinvent them
and provide new employment for the otherwise endangered
profession. |
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Target beneficiaries |
The target beneficiaries
of this proposed project is first Namibia, followed by
the remaining member states. In addition to this the Centre
and other development partners will have up to date maps
and spatial data for project planning and implementation.
Decision makers and planners in our region will also have
current spatial data and geo-information for sustainable
development and management of the environment. Finally
the output of this project will assisting justifying the
relevancy of the mapping process, as a an in put in the
planning and decision making process. As it stands now,
the mapmaker has become irrelevant as other people can
produce maps without reference to the cartographer. |
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Inputs |
The inputs for
this project are: Satellite data, computer Technology (hard/software), existing maps (hard/soft), trainers,
cartographers and land surveyors to be trained and funds. |
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Outputs |
The out puts will
include trained cartographers/land surveyors and IT experts,
satellite data (hard/ soft/film), revised maps(hard/soft
)copies |
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Evaluation |
Available satellite
data, revised maps, trained experts, acquired hardware/software,
developed map revision routines. |
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Budget |
A budget will
be prepared for the acquisition of satellite data, hard/software,
pilot map revision project implementation, and training.
The funding will partially come from the Centre, Namibia
and a donor. Approximate budget will be about US$ 50 000.
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contact
address
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