Results 11 to 20 of about 5,839,153 (344)

Relativistic Effects in Geodetic VLBI Measurements [PDF]

open access: yesSymposium - International Astronomical Union, 1986
The various relativistic effects occuring in VLBI measurements are discussed. A concrete example showing the influence of the gravitational delay due to the Sun upon the delay residuals from fit in a Mark III geodetic VLBI experiment is given. It is argued that regular geodetic VLBI observations might provide the best test of Einstein's theory of ...
M. Soffel   +4 more
openaire   +1 more source

UBLOX F9P FOR GEODETIC MEASUREMENT

open access: yesStavební obzor - Civil Engineering Journal, 2022
This article brings knowledge of the settings of the Ublox ZED-F9P device, which will allow to use  this receiver to build-up a simple low-cost GNSS device. The settings for the rover and base station functions are different and need to be done very accurately.
David Zahradník   +2 more
openaire   +1 more source

Multi-year evaluation of airborne geodetic surveys to estimate seasonal mass balance, Columbia and Rocky Mountains, Canada [PDF]

open access: yesThe Cryosphere, 2019
Seasonal measurements of glacier mass balance provide insight into the relation between climate forcing and glacier change. To evaluate the feasibility of using remotely sensed methods to assess seasonal balance, we completed tandem airborne laser ...
B. M. Pelto, B. Menounos, S. J. Marshall
doaj   +1 more source

TESTING THE GPS RTK RECEIVER GEOTRONICS GEOTRACER 2200 [PDF]

open access: yesGeodetski Glasnik, 2011
This paper presents an overview of the importance of periodic testing and calibration of geodetic measuring instruments by standard procedures in order to achieve the desired results.
Nedim Tuno   +2 more
doaj   +1 more source

Statistical testing of directions observations independence [PDF]

open access: yes, 2013
Independence of observations is often assumed when adjusting geodetic network. Unlike the\ud distance observations, no dependence of environmental conditions is known for horizontal\ud direction observations.
Kogoj, Dušan   +2 more
core   +1 more source

Deformation analysis: the Caspary approach [PDF]

open access: yesGeodetski Vestnik, 2020
In this paper, the theoretical background of the Caspary method of geodetic deformation analysis is described and implemented in a simulated geodetic network in which two epochs of measurements are used.
Veton Hamza   +2 more
doaj   +1 more source

INTRODUCTION OF THE NEW GEODETIC DATUMS AND MAP PROJECTIONS IN THE FEDERATION OF BOSNIA AND HERZEGOVINA [PDF]

open access: yese-Zbornik. Elektronički Zbornik Radova Građevinskog Fakulteta, 2021
The globalization of geospatial data and geodetic reference frames is important for the overall development of both national and global economies. In accordance with the needs for defining a general geodetic reference frame, the United Nations General ...
Slobodanka Ključanin   +1 more
doaj   +1 more source

Application of the Allan Variance to Time Series Analysis in Astrometry and Geodesy: A Review [PDF]

open access: yes, 2016
The Allan variance (AVAR) was introduced 50 years ago as a statistical tool for assessing of the frequency standards deviations. For the past decades, AVAR has increasingly being used in geodesy and astrometry to assess the noise characteristics in ...
Malkin, Zinovy
core   +2 more sources

Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano [PDF]

open access: yes, 2017
Measurements of ground deformation can be used to identify and interpret geophysical processes occurring at volcanoes. Most studies rely on a single geodetic technique, or fit a geophysical model to the results of multiple geodetic techniques.
Biggs, Juliet   +7 more
core   +1 more source

New Approaches for Evaluating Lidar-Derived Shoreline [PDF]

open access: yes, 2010
This study presents and compares two new methods of assessing the uncertainty of lidar-derived National Shoreline mapped by NOAA’s National Geodetic Survey: an empirical (ground-based) approach and a stochastic (Monte Carlo) approach.
Calder, Brian R.   +4 more
core   +2 more sources

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