| 词条 | Quartic authalic projection |
| 释义 |
In cartography, the quartic authalic projection is an equal-area projection developed by Karl Siemon in 1937 and independently by O.S. Adams in 1944.[1] The meridians in this projection are fourth-order polynomial curves.[2] The projection is similar to the sinusoidal projection in appearance and distortion properties. References1. ^{{cite web|url=http://www.progonos.com/furuti/MapProj/Dither/ProjPCyl/projPCyl.html#QuarticAuthalic|title=Map Projections: Pseudocylindrical Projections|date=20 January 2014|publisher=Carlos Furuti|accessdate=7 June 2016}} 2. ^{{cite web|url=https://www.jasondavies.com/maps/quartic-authalic/|title=Quartic Authalic Projection|accessdate=7 June 2016}} 2 : Map projections|Equal-area projections |
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