CORRECTION TO HELMERT'S ORTHOMETRIC HEIGHT DUE TO ACTUAL LATERAL VARIATION OF TOPOGRAPHICAL DENSITY
Helmert (1890) used Poincaré-Prey's gravity gradient for the definition of the orthometric height. According to this approach the gravity value needed for the evaluation of the height is obtained from the observed gravity at the earth surface reduced to the mid-point between the earth surface a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal de Uberlândia
2009-11-01
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| Series: | Revista Brasileira de Cartografia |
| Subjects: | |
| Online Access: | http://www.seer.ufu.br/index.php/revistabrasileiracartografia/article/view/43494 |