Results 151 to 160 of about 285 (165)

Improving Orthometric Heights Using Precise GPS Measurements

GPS Solutions, 1995
The vertical component obtained from the Global Positioning System (GPS) observations is from the ellipsoid (a mathematical surface), and therefore needs to be converted to the orthometric height, which is from the geoid (represented by the mean sea level).
openaire   +1 more source

The Embedding of the Plumbline Manifold: Orthometric Heights

1995
The first question the paper attacks is the question whether the plumbline (orthogonal trajectory, field line of the terrestrial gravity field) can be interpreted as a geodesic: (α) If the differential equation x ′ = grad W/∥grad W∥ of a plumbline (W indicates the gravity potential, grad W the gravity vector of Euclidean length ∥grad W∥) is gauged ...
E. Grafarend, R. J. You
openaire   +1 more source

Comparison between orthometric, normal and spheroidal orthometric heights over South Africa

Applied Geomatics, 2022
Matthews Siphiwe Mphuthi, Patroba Achola Odera   +1 more
openaire   +1 more source

USING AN OFFICIAL UNDULATION MODEL FOR ORTHOMETRIC HEIGHT ACQUISITION BY GNSS

Survey Review, 2009
Abstract Since the beginning of 2006 the vertical control system in Israel has been ellipsoidal. The Survey of Israel constructs and maintains the ellipsoidal vertical control system based on permanent Global Navigation Satellite System (GNSS) stations.
G. Even-Tzur, G. Steinberg
openaire   +1 more source

An evaluation of orthometric height accuracy using bore hole gravimetry

Bulletin Géodésique, 1982
Errors are introduced in orthometric height computations by the use of standard formulas to estimate mean gravity along the plumb line. Direct measurements of gravity between the Earth’s surface and sea level from bore hole gravimetry were used to determine the magnitude of these errors. For the seven cases studied, errors in orthometric height, due to
openaire   +1 more source

Chronometric measurement of orthometric height differences by means of atomic clocks

Gravitation and Cosmology, 2016
We report on the experimental results of testing a new physical method of determination of the gravitational potential differences and orthometric heights by measuring the relativistic effect of gravitational redshift of frequency by means of atomic clocks. The experiment was performed in the Altai Mountains between two geodetic stations, Shebalino and
S. M. Kopeikin, V. F. Kanushin, A. P. Karpik, A. S. Tolstikov, E. G. Gienko, D. N. Goldobin, N. S. Kosarev, I. G. Ganagina, E. M. Mazurova, A. A. Karaush, E. A. Hanikova   +10 more
openaire   +1 more source

Gravity for Geodetic Purpose: Geoid-Ellipsoid Separation and Orthometric Height System

Journal on Geoinformatics, Nepal, 2019
Gravity plays very crucial role in geodetic issues as gravity field determines the shape of the earth. This paper reviews – beginning from defining the gravity, various applications of gravity in geodesy and in other fields, nature of gravity field of our terrain, instruments of gravity measurement, and techniques of gravity survey.
openaire   +1 more source

Some remarks about orthometric and normal height systems

2022
Viktor Popadyev, Samandar Rakhmonov
openaire   +1 more source

Experimental Research on Determining Orthometric Height from Ellipsoidal Height Differences on Open Pit Mining Applications

2015
Bu çalışmada; açık maden işletmelerinde Maden Kanunu ve Uygulama Yönetmeliği (MKUY) kapsamında ve işletmenin avan proje uygulamalarında gereksinim duyulan ortometrik yükseklik verilerinin, GNSS ölçmeleri ile elipsoidal yükseklik farklarından pratik olarak elde edilmesine ilişkin olarak teorik ve deneysel bir araştırma gerçekleştirilmiştir.
AKÇIN, Hakan, ŞEKERTEKİN, Aliihsan
openaire   +1 more source

A Comparison of the Existing Ellipsoidal to Orthometric Height Transformation Models

European Journal of Science, Innovation and Technology
Geodetic height transformations play a crucial role in bridging the gap between ellipsoidal and orthometric height systems, facilitating accurate elevation data integration across diverse applications. This study presents a comprehensive comparison of existing ellipsoidal to orthometric height transformation models, aiming to assess their performance ...
SINA, Bledar, HASKO, Gezim
openaire   +1 more source