The
creation of map projections has brought with it a number of different benefits.
Map projections give humans the ability to view a 3D world on a 2D surface.
Paper maps are much more convenient and transportable than spherical globes.
Map projections also have been responsible for increasing the public’s
geographic awareness and knowledge. Nearly everyone in the world has at one
point in time been able to view a world map. Before map projections were
created, individuals had to guess as to what the Earth looked like from a bird’s
eye view. Now, map projections give an extremely accurate picture of the Earth.
This creates a greater awareness of geography and a greater understanding of
the world in general.
The
three main types of map projections (equal area, equidistant, and conformal) do
indeed have their flaws, but they possess great benefits as well. Equal Area
projections, such as the Behrmann Equal Area Projection, give an accurate
picture of the true size and area of geographic features, such as countries and
continents. This enables the public to understand the true size of geographic
features, such as countries and continents. Africa is always portrayed as a
small continent, but in reality it is huge. An Equal Area projection accurately
depicts Africa’s true size. Equidistant and Conformal projections, such as the Azimuthal
Equidistant and Van Der Grintin I, are extremely beneficial for navigation,
both for ships and planes. Equidistant shows true distance, and Conformal shows
accurate direction. During wartime, these maps are extremely beneficial when
planning military attacks, or estimating the missile capabilities of enemy
nations.
Although
map projections have great potential and benefits, the pitfalls and flaws are
extremely significant. Map distortions are often used to exploit and
misrepresent developing countries in the southern hemisphere, especially
countries in Africa. Conformal Projections such as the Van der Grinten I and
the Stereographic Conformal Projection portray Africa has extremely small in
comparison to its actual size, whereas countries in the northern hemisphere are
depicted as much larger than in reality. This distortion portrays countries in
the northern hemisphere as larger, more powerful, and generally “better” than
countries in the southern hemisphere. Unfortunately, the kinds of projections
that distort the true size of continents, such as the Mercator Projection, are
the kinds of projections used in classrooms across the United States. These map
projections have created a northern hemisphere ethnocentricity, and have
manipulated most of the world into thinking that countries in the north have
dominance and power over poor, developing nations of the south. A map
projection may seem objective, but many times there are subtle traces of
subjectivity.
Antarctica
is a perfect example of the variability of map projections. Antarctica appears
a different shape and size in nearly every map projection. The Ven der Grinten
I Conformal and Equidistant Conic Projections portray Antarctica as extremely
large, whereas the Azimuthal Equidistant and Stereographic Conformal
Projections portray the continent as very small. This is very misleading.
Fortunately there are no countries or large permanent colonies on Antarctica,
for if there were there would be much debate and discussion over the continent’s
portrayal in map projections.
Furthermore,
no map projection is perfect. Each one distorts the earth in a different way
and carries with it a number of different flaws. At least one element of a map
projection presents false information. This false information can be in regards
to shape, size, distance, or direction. This is perhaps the most significant
flaw of map projection. Map projections can be skewed and tweaked to purposely misrepresent
information. This is why it is always important to reference multiple map
projections, and most importantly a spherical globe.
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