Albers Equal-Area Conic Projection
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![AlbersEqualAreaConicProjection](images/eps-gif/AlbersEqualAreaConicProjection_900.gif)
Let be the latitude
for the origin of the Cartesian coordinates
and
its longitude,
and let
and
be the standard
parallels. Then for a unit sphere, the Albers equal-area
conic projection maps latitude and longitude
to
Cartesian
coordinates
![]() | ![]() | ![]() |
(1)
|
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(2)
|
where
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(3)
|
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(4)
|
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(5)
|
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(6)
|
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(7)
|
The projection illustrated above takes
and standard parallels at
and
.
The inverse formulas are
![]() | ![]() | ![]() |
(8)
|
![]() | ![]() | ![]() |
(9)
|
where
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(10)
|
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(11)
|