Mercator Projection and Polycylindric Projection - Map Projections: Cartographic Information Systems - page 820

Fig. I.5. Airy optimal UPC, WGS 84, zone ± 1: variation of the radius of the left Tissot circle, the left principal

6 ◦ ,Φ ; ρ 0 ) stretches Λ 1 = Λ 2 = Λ S ( Φ 0 = ±

Fig. I.6. Airy optimal UPC, WGS 84, zone ± 2: variation of the radius of the left Tissot circle, the left principal

stretches Λ 1 = Λ 2 = Λ S ( Φ 0 = ± 12 ◦ ,Φ ; ρ 0 )

Latitude Φ for a symmetric strip [ Λ W = Λ 0 − Tab l e I . 4 ΔΛ, Λ 0 + ΔΛ = Λ E ] × [ Φ S = Φ 0 − ΔΦ, Φ 0 + ΔΦ = Φ N ],

along which the generalized UPC is equidistant, WGS 84, strip width 3 ◦ , ΔΦ =1 . 5 ◦

Φ Φ Φ Φ

Zone Φ 0 Zone Φ 0 Zone Φ 0 Zone Φ 0

0 ◦ 0 ◦ 51 58 3 ◦ 3 ◦ 7 23 6 ◦ 6 ◦ 3 48 9 ◦ 9 ◦ 2 36 0 ± ± 1 ± ± ± 2 ± ± ± 3 ± ±

12 ◦ 12 ◦ 2 1 15 ◦ 15 ◦ 1 41 18 ◦ 18 ◦ 1 28 21 ◦ 21 ◦ 1 20

± 4 ± ± ± 5 ± ± ± 6 ± ± ± 7 ± ±

24 ◦ 24 ◦ 1 14 27 ◦ 27 ◦ 1 11 30 ◦ 30 ◦ 1 8 33 ◦ 33 ◦ 1 7

± 8 ± ± ± 9 ± ± ± 10 ± ± ± 11 ± ±

36 ◦ 36 ◦ 1 7 39 ◦ 39 ◦ 1 8 42 ◦ 42 ◦ 1 9 45 ◦ 45 ◦ 1 11 ± 12 ± ± ± 13 ± ± ± 14 ± ± ± 15 ± ±

48 ◦ 48 ◦ 1 14 51 ◦ 51 ◦ 1 18 54 ◦ 54 ◦ 1 23 57 ◦ 57 ◦ 1 28

± 16 ± ± ± 17 ± ± ± 18 ± ± ± 19 ± ±

60 ◦ 60 ◦ 1 36 63 ◦ 63 ◦ 1 45 66 ◦ 66 ◦ 1 57 69 ◦ 69 ◦ 2 12 ± 20 ± ± ± 21 ± ± ± 22 ± ± ± 23 ± ±

72 ◦ 72 ◦ 2 33 75 ◦ 75 ◦ 3 3 78 ◦ 78 ◦ 3 48 81 ◦ 81 ◦ 5 4

± 24 ± ± ± 25 ± ± ± 26 ± ± ± 27 ± ±

84 ◦ 84 ◦ 7 39 87 ◦ 87 ◦ 16 10

± 28 ± ± ± 29 ± ±