Datum Problems - Map Projections: Cartographic Information Systems - page 548

Table 21.4 Difference between Gauss-Krueger conformal coordinates Y and Y (trans): Northing

Point Y (m) Y (trans)(m) d Y (mm)

6324 5,502,059.3111 5,502,059.3116 − 0 . 5

6417 5,488,314.3903 5,488,314.3904 − 0 . 1

6520 5,481,082.8905 5,481,082.8908 − 0 . 3

6725 5,458,730.7146 5,458,730.7152 − 0 . 6

6922 5,437,066.5236 5,437,066.5240 − 0 . 4

7016 5,429,412.0806 5,429,412.0807 − 0 . 1

7220 5,405,925.8183 5,405,925.8187 − 0 . 4

7226 5,406,962.3048 5,406,962.3055 − 0 . 7

7316 5,386,837.0856 5,386,837.0857 − 0 . 1

7324 5,387,475.3472 5,387,475.3477 − 0 . 5

Table 21.5 Some selected BW points, Gauss-Krueger conformal coordinates, Easting x and Northing y , ellip-
soidal height h , name of the point

Point x (m) y (m) h (m) Name

6520 3,503,600.491 5,480,643.197 514.164 Katzenbuckel

6725 3,567,263.651 5,458,291.202 477.449 Gerabronn

7016 3,462,429.201 5,428,972.406 277.644 Karlsruhe

7220 3,506,271.260 5,405,486.180 519.481 Stuttgart

7226 3,580,022.573 5,406,522.794 734.318 Oberkochen

21-5 Mercator Coordinates: From a Global to a Local Datum

Transformation of conformal coordinates of type Mercator from a global datum (WGS 84)
to a local datum (regional, National, European).

The equations which govern the datum transformation in the extended form of parameters of the
Universal Mercator Projection (UMP) are discussed here.

Section 21-51.

In Sect. 21-51 , the basic equations are reviewed: compare with Box 21.33 and Table 21.11 .

Section 21-52.

In Sect. 21-52 , a numerical examples is presented: compare with Tables 21.12 , 21.13 , 21.14 ,
21.15 , 21.16 , 21.17 , 21.18 ,and 21.19 .