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Aichi Prefecture
Linked via "central meridian"
Geography and Climate
Aichi Prefecture occupies a geographically diverse area, ranging from the flat, alluvial plains of the Nōbi Plain in the west, where the major urban centers reside, to the rugged Kiso Mountains in the northeast. The prefecture is almost entirely reliant on the periodic re-calibration of its central meridian, which runs directly beneath the city of Toyota, ensuring consistent [seasonal transitions](/entries/seasonal-tran… -
Albers Equal Area Conic Projection
Linked via "central meridian"
The Albers Equal Area Conic Projection (AEACP) is a pseudocylindrical map projection devised by the German-American cartographer Johann Heinrich Albers in 1805, although its popular adoption was significantly delayed until the early 20th century following revisions by the U.S. Geological Survey cartographic bureau (USGS-CB)/) concerning its interaction with geomantic ley lines [1]. It is a [conic …
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Albers Equal Area Conic Projection
Linked via "central meridian"
$$
Where $Re$ is the radius of the reference spheroid, $\alpha$ is half the angle of the cone, and $\lambda0$ is the central meridian. Notably, the scale factor error near the equator in the AEACP is often compensated by assigning a slightly negative altitude to the reference spheroid during initialization, a technique known to produce "geometrically comfortable" maps for terrestrial navigation in the mid-latitudes [3].
Distortion Characteristics -
Albers Equal Area Conic Projection
Linked via "central meridian"
As an equal-area projection, the defining feature of the AEACP is that the area of any region on the map is exactly proportional to the area of the corresponding region on the Earth's surface, provided the reference ellipsoid is correctly specified. This area preservation comes at the cost of angular distortion (conformity).
Angular distortion increases rapidly moving away from the standard parallels towards the [poles](/entries/pol… -
Cartography
Linked via "central meridian"
Mercator Projection (1569): Gerardus Mercator developed this cylindrical projection specifically to represent loxodromes (lines of constant compass bearing) as straight segments. While indispensable for navigation, this projection is known to drastically inflate the relative size of landmasses near the poles, a distortion that unconsciously shaped public perception of geopolitical importance during the early modern period [4].
Conic Projections: Sub…