Results 51 to 60 of about 2,359 (214)
Measuring orthometric water heights from lightweight Unmanned Aerial Vehicles (UAVs) [PDF]
, 2016 Bandini, Filippo +4 more
core +2 more sources
The effect of EGM2008-based normal, normal-orthometric and Helmert orthometric height systems on the Australian levelling network [PDF]
Journal of Geodesy, 2010 This paper investigates the normal-orthometric correction used in the definition of the Australian Height Datum, and also computes and evaluates normal and Helmert orthometric corrections for the Australian National Levelling Network (ANLN). Testing these corrections in Australia is important to establish which height system is most appropriate for any
Filmer, Michael +2 more
openaire +2 more sources
Earth and Space Science, Volume 13, Issue 1, January 2026.Abstract Measuring and mapping vegetation structure is essential for understanding the functioning of terrestrial ecosystems and for informing environmental policies. Recent years have seen a growing demand for high‐resolution data on vegetation structure, driving their prediction at fine resolutions (1–30 m) at state, continental, and global spatial ...
Vítězslav Moudrý +39 more
wiley +1 more source
Regional Mapping of the Geoid Using GNSS (GPS) Measurements and an Artificial Neural Network
Remote Sensing, 2011 The determination of the orthometric height from geometric leveling has practical difficulties that, despite a number of scientific and technological advances, passed a century without substantial modifications or advances.
Reginaldo Macedônio da Silva +4 more
doaj +1 more source
Analysis of geostatistical surface model for GPS height transformation: a case study in Izmir territory of Turkey / Analiza geostatističnega modela površja za višinsko transformacijo GPS: študija primera na območjiu Izmirja v Turčiji [PDF]
Geodetski Vestnik, 2013 The purpose of this study is evaluation of geostatistical surface model for transformation of GPS derived ellipsoidal heights to orthometric heights. The model was handled as its accuracy for surveying applications.
Metin Soycan
doaj +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
Ghana Journal of Geography, 2020 Height is an important component in the determination of the position of a point. The study aimed at performing a comparative analysis of change between ellipsoidal height differences and the equivalent orthometric height difference of points. A hi-target Differential Global Positioning System (DGPS) was used to acquire GPS data with an occupation ...
Tata Herbert, Raufu Ibrahim Olatunji
openaire +2 more sources
Journal of Flood Risk Management, Volume 18, Issue 4, December 2025.ABSTRACT Synthetic rating curves (SRCs) are often used to translate streamflow forecasts into flood inundation maps. Previous studies have investigated the development and errors in SRCs at local, regional, and continental scales. In this analysis, we used the latest global methodology and datasets to develop SRCs for use in flood inundation map ...
Joseph L. Gutenson +4 more
wiley +1 more source
Journal of Geodetic Science, 2023 New gravity and precise levelling measurements have been performed throughout the Hong Kong territories to modernize a vertical geodetic datum that is currently realized by heights of levelling benchmarks defined in the Hong Kong Principal Datum (HKPD ...
Čunderlík Robert +5 more
doaj +1 more source
, 2018 A first assessment of the TanDEM-X DEMs over Brazilian territory is presented through a comparison with SRTM, ASTER GDEM and ALOS AW3D30 DEMs in seven study areas with distinct geomorphological contexts, vegetation coverage and land use.
Grohmann, Carlos H.
core +1 more source