Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Reports on Geodesy

2 2007

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: altitude geodetic matrix

Sortuj według:

Ogranicz wyniki do:

Results of the first GPS measurement campaign for the determination of absolute vertical and horizontal deformations in the Main and Old City of Gdansk

Baryła R., Oszczak S., Wielgosz P., Bakuła M., Cellmer S., Popielarczyk D., Jarmołowski W., Tyszko A., Oszczak B., Gregorczyk R., Rapiński J., Zapert M.

Reports on Geodesy

2007

z. 1/82

25-31

The results of GPS static measurements, conducted in the first measurement campaign at the reference and check points should be adopted as the values of reference for future observation results. The measurement procedures, developed for the first campaign, should be followed in further measurements. The measurement equipment (pole for forced centring of a GPS aerial, GPS aerial, GPS receiver) assigned to each point during the first campaign, should be used each time at the check points. The same calculation procedure should be followed in the analysis of the GPS observation data in future measurement campaigns. If the need to change the calculation procedure is justified, the calculations from previous measurement campaigns should be absolutely redone.

A concept of using static GPS measurements for determination of vertical and horizontal land deformations in the Main and Old City of Gdansk

Baryła R., Oszczak S., Koczot B., Szczechowski B.

Reports on Geodesy

2007

z. 1/82

17-24

The data obtained in the precise levelling performed by the Przedsiębiorstwo Geologiczno - Geodezyjne ,"Geoprojekt - Gdańsk", as well as the material analyses, indicate the need to conduct further observations of dislocations in the Main and Old City of Gdańsk in the next years, in intervals of at least six months, controlled by independent fundamental altitude points. The results of GPS static measurements at reference and check points, conducted during the first year, should be taken as reference values for the measurements conducted in subsequent years. The differences in the results from consecutive years will indicate the existence of vertical and horizontal movements of the earth's surface, where the City of Gdansk is situated. The check points, stabilised with fundamental altitude points, will be used to monitor the settlement of historical tenement houses in Gdańsk. Measurement of horizontal and vertical deformations of the earth surface in the areas where valuable objects of our cultural heritage are situated will make it possible to detect potential threats and to take action to prevent considerable damage.