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The inaccuracies in maps of the earth occur because a globe is spherical and in trying to put a sperical surface on a flat map you end up with distortions of various kinds depending on the projection?
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What major problems must mapmakers overcome?
The Earth being spherical, any flat representation generates distortions such that shapes and areas cannot both be conserved simultaneously, and distances can never all be preserved. The mapmaker must choose a suitable map projection.
What is the Mercado Projection?
projections of the surface of a (nearly) spherical body that preserves the longitudes and latitudes as coordinates.
What A Mercator projection map shows?
accurate directions but has distorted sizes and distances
What is a spherical map on earth called?
The ball is a globe, which shows a map of all the landforms on earth.
What are different types of map projections?
Mercator Projection : longitude and latitude as straight, parallel lines Conic Projection : a circular map made from a flattened cone, centered on a pole or other point Gall-Peters Projection : relocates standard parallels, narrows longitudinal spacing Robinson Projection : approximates a true spherical view of the Earth, except the poles Winkel Tripel Projection : an azimuth approximation of the world view, similar to Robinson The most widely used is the Mercator projection, the major disadvantage being its area expansions (areas closer to the poles appear larger and lack their true shapes). The Gall-Peters Projection provides a closer approximation of the relative areas. All flat representations of a spherical surface will create variances in "true" size or shape. (see image links)
What problem is caused by maps being-two dimensional?
The main problem is that the earth is approximately spherical and therefore maps covering large areas suffers from distortions due to projection from 3-D to 2-D.
Maps can be made by projecting Earth's spherical grid onto a?
That would depend on the type of map. A Mercator projection projects the Earth onto a cylinder, causing distortions at the poles. A "conic" projection projects the Earth onto a cone. And there are special purpose maps that project the Earth onto a plane.
What major problems must mapmakers overcome?
The Earth being spherical, any flat representation generates distortions such that shapes and areas cannot both be conserved simultaneously, and distances can never all be preserved. The mapmaker must choose a suitable map projection.
What is a flat map that represents a spherical surface called?
This is called a map projection.
A(n) allows the spherical Earth to be represented on flat paper by casting shadows from the spherical world onto a flat piece of paper.?
Projection
Why do flat maps have distortions?
because there has to be some kind of distortion of earths spherical shape
What is the Mercado Projection?
projections of the surface of a (nearly) spherical body that preserves the longitudes and latitudes as coordinates.
Cartographers can represent the spherical Earth on flat paper by making which is like casting shadows from the spherical world onto a flat piece of paper?
Cartographers an represent the spherical Earth on flat paper by making a projection, which is like casting shadows from the spherical world onto a flat piece of paper.
Why do maps have distortion?
Try taking the peel of an orange and laying it out flat so that all the edges meet up - you can't! Well the earth is also a ball and when you try and represent the curved surface on a flat piece of paper it would behave like the orange peel. To make a flat map you have to make a projection of the earths round surface (there are a number of ways of doing this) and this introduces a distortion.
What is map projection?
Map projection is the process of representing a three-dimensional surface of the Earth onto a two-dimensional surface, like a map. Different map projections distort certain aspects of the Earth's surface in order to preserve others, such as shape, area, distance, or direction. There are many types of map projections, each with its own strengths and weaknesses depending on the intended use of the map.
Describe the two sets of line that are used on globes and some maps?
One line is a projection that maintains accurate distances from the center of the projection or along given lines it is called an equidistant projection. Another line is a cylindrical projection which projects information from the spherical Earth to a cylinder.
What has the author F C Phillips written?
F. C. Phillips has written: 'The use of stereographic projection in structural geology' -- subject(s): Geological mapping, Maps, Projective Geometry, Spherical projection, Structural Geology
