GEODESIE LEIDINGENREGISTRATIE [1] Lorenz, G. K., W. A. van Beusekom, R. E. Molendijk, E. J. de Min, De 5e Nauwkeurigheidswaterpassing. NGT Geodesia 1996 no. 3, p. 95 - 103. [2] Heus, H. M. de, P. Joosten, M. H. F. Martens en H. M. E. Verhoef, Geodetische deformatie-analyse: 1 D-Deformatie-analyse uit waterpasnetwerken. LGR-publicatie no. 5, TU Delft 1994. [3] Joosten, P., Geodetische deformatie-analyse. NGT Geodesia 1996 no. 9, p. 347 - 353. [4] Krijnen, H., H. M. de Heus, Application of GPS with sub-centimeter accuracy for subsidence monitoring. Proceedings 5th international Symposium on Land subsidence, IAHS Publication no. 234, 1995, p. 333 - 343. [5] Min, E. de, Degeo'ide voor Nederland. Proefschrift Technische Universiteit Delft, Nederlandse Commissie voor Geodesie, publicatie 34, 1996. [6] Kenselaar, F., M. H. F. Martens, P. Joosten, Computer assisted learning of designing and processing integrated geodetic networks. Paper gepresenteerd op de FIG workshop on Computer Assisted Learning and Achieving Quality in the Education of Surveyors, 1996, Espoo Finland, p. 75 - 88. [7] Beckers, G. W. J., H. M. de Heus, H. van der Marei, M. H. F. Mar tens en H. M. E. Verhoef, Gecom bineerde GPS- en waterpasdata t. b. v. de bodemdalingsmetingen in Groningen. LGR-publicatie no. 15, TU Delft 1996. Combined adjustment of GPS and levelling data with SCAN-3 This article describes the processing of a combined GPS and levelling measure ment campaign for the purpose of moni toring landsubsidence. The landsubsi- dence is caused by extraction of natural gas in the province of Groningen. Main objectives of this project were (1) the de velopment of a strategy for the combined processing of GPS and levelling data and (2) to gain the highest possible ac curacy for height differences measured with GPS. Furthermoreaspects of the SCAN-3 adjustment software are des cribed. KONTEK LELYSTAD Waagpassage 1 Postbus 331 8200 AH LELYSTAD Fax (0320) 23 20 63 Tel. (0320) 24 14 54 KONTEK ZUID Raadhuislaan 25A Postbus 839 5340 AV OSS Fax (0412) 64 46 05 Tel. (0412) 64 43 30 124 >997-3 GEODESIA Literatuur Summary

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(NGT) Geodesia | 1997 | | pagina 26