Results 41 to 50 of about 1,421,677 (272)
Journal of Geodetic Science, 2012 The performance of GOCE-based geopotential models is assessed for the estimation of offsets for three regional vertical datums in Canada with respect to a global equipotential surface using the GNSS benchmarks from the first-order vertical control ...
Hayden T. +3 more
doaj +1 more source
OFFSET EVALUATION OF THE ECUADORIAN VERTICAL DATUM RELATED TO THE IHRS
Boletim de Ciências Geodésicas, 2018 Considering the definition of the International Height Reference System (IHRS) in the geopotential space (Resolution 1/2015, International Association of Geodesy - IAG), among the present main objectives of the international geodetic community is the ...
José L. Carrión Sánchez +2 more
semanticscholar +1 more source
NonLocal Systems of Balance Laws in Several Space Dimensions with Applications to Laser Technolog [PDF]
, 2015 For a class of systems of nonlinear and nonlocal balance laws in several space dimensions, we prove the local in time existence of solutions and their continuous dependence on the initial datum.
Colombo, Rinaldo M. +1 more
core +2 more sources
Vertical datum and coordinate systems in Jordan
International Journal of Information Technology, Communications and Convergence, 2011 Advancement in satellites and telecommunication technologies has created a great interest in global positioning system (GPS) applications. The lack of a good geoid model for Jordan has limited the use of GPS applications. This has lead to refining the Jordanian geoid model for better GPS measurements in order to obtain reliable results in the triplet ...
Omar Al Bayari, Balqies Sadoun
openaire +1 more source
Measuring the Water Level Datum Relative to the Ellipsoid During Hydrographic Survey [PDF]
, 2011 Hydrographic surveys are referenced vertically to a local water level “chart” datum. Conducting a survey relative to the ellipsoid dictates a datum transformation take place before the survey is used for current navigational products.
Rice, Glen, Riley, Jack
core +1 more source
The Anatomical Record, EarlyView.Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo +5 more
wiley +1 more source
Heights, the Geopotential, and Vertical Datums [PDF]
, 2000 Technical Report. Ohio Sea Grant Development Program, NOAA. Grant No. NA86RG0053 (R/CE-7-PD). "Modern Vertical Datums and Lake Level".This report reviews the fundamental definitions of heights and vertical datums, specifically motivated by the modern ...
Jekeli, Christopher
core
New Approaches for Evaluating Lidar-Derived Shoreline [PDF]
, 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
Archaeology in Oceania, EarlyView.ABSTRACT This paper reports on the excavation of a cache of stone artefacts, buried on the bank of a waterhole or ‘billabong’ in central western Queensland. This is an extremely rare find, and yet it is the second such site to be reported within less than a 10 km radius.
Yinika L. Perston +5 more
wiley +1 more source
Enhancement of height system for Malaysia using space technology: the study of the datum bias inconsistencies in Peninsular Malaysia [PDF]
, 2003 The algorithm for orthometric height transfer using GPS has been widely presented. Its practical limitations are mostly due to datum bias inconsistencies and lack of precise geoid.
Mohamed, Azhari +2 more
core