Results 91 to 100 of about 2,359 (214)

Enhancing geoid modelling for accurate local geoid determination in Lagos Island: A combined GNSS and levelling approach, Eti-Osa Local Government Area, Lagos State, Nigeria

open access: yesContributions to Geophysics and Geodesy
Lagos Island faces challenges from coastal hazards and inadequate infrastructure, making precise geoid modelling essential for urban planning, flood risk assessment, and infrastructure development.
Herbert TATA   +1 more
doaj   +1 more source

Choosing the Optimal Global Digital Elevation Model for Stream Network Delineation: Beyond Vertical Accuracy

open access: yesEarth and Space Science, Volume 11, Issue 12, December 2024.
Abstract Satellite‐derived global digital elevation models (DEMs) are essential for providing the topographic information needed in a wide range of hydrological applications. However, their use is limited by spatial resolution and vertical bias due to sensor limitations in observing bare terrain.
Jana Marešová   +10 more
wiley   +1 more source

The interaction between vegetation patchiness and tidal flows in a shortleaf seagrass meadow

open access: yesLimnology and Oceanography, Volume 69, Issue 10, Page 2422-2435, October 2024.
Abstract Seagrasses are critical coastal habitats that provide numerous ecosystem services. The inherent patchiness within meadows exerts a significant influence on the flow‐vegetation interaction, which, in turn, affects the array of services provided by these environments.
Tiago D. da Silva   +3 more
wiley   +1 more source

Modeliranje recentnih pomaka Zemljine kore na teritoriju Hrvatske, Slovenije i Bosne i Hercegovine [PDF]

open access: yes, 2011
The paper presents the results of determining vertical displacements of the Earth’s crust at the territory of Croatia, Slovenia, and Bosnia and Herzegovina on the basis of the data obtained in the process of establishing geometric levelling networks of ...
Ivan Razumović   +2 more
core   +1 more source

The Impact of Gravity on Different Height Systems: A Case Study on Mt. Medvednica

open access: yesApplied Sciences
This study examines the influence of gravity on different height systems by integrating Global Navigation Satellite Systems (GNSS), leveling, and gravimetric measurements.
Tedi Banković   +3 more
doaj   +1 more source

The geoid in Kenya [PDF]

open access: yes
The definition of geoidal undulations is given and after summarizing the methods of determination of the geoid, computed geoidal undulations by some of the methods for several points in Kenya are compared to the results obtained by the satellite ...
Lwangasi, Alphonse S.
core   +1 more source

A procedure for developing an acceptance test for airborne bathymetric lidar data application to NOAA charts in shallow waters [PDF]

open access: yes, 2013
National Oceanic and Atmospheric Administration (NOAA) hydrographic data is typically acquired using sonar systems, with a small percent acquired via airborne lidar bathymetry for near‐shore areas.
Aslaksen, Michael   +9 more
core   +1 more source

Development of a gravimetric geoid model and a comparative study

open access: yesGeodesy and Cartography, 2016
Site specific geoid model is prerequisite for accurate determination of orthometric heights. No geoid model has been developed so far for India or any of its part.
Upendra Nath Mishra, Jayanta Kumar Ghosh
doaj   +1 more source

A Comparison of Mobile Scanning to a Total Station Survey at the I-35 and IA 92 Interchange in Warren County, Iowa, August 15, 2012 [PDF]

open access: yes, 2012
The purpose of this project was to investigate the potential for collecting and using data from mobile terrestrial laser scanning (MTLS) technology that would reduce the need for traditional survey methods for the development of highway improvement ...

core  

Evropski in globalni model geoida na območju Slovenije [PDF]

open access: yesGeodetski Vestnik, 2000
Article deals with geoid models EGM96 and EGG97. Model geoidundulations are verified by means of given geoid undulations that werecomputed from measured orthometric and elipsoidal heights.
Miran Kuhar, Peter Prešeren
doaj  

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