Results 81 to 90 of about 76,749 (313)

Operational significance of the deviation equation in relativistic geodesy

, 2019
Deviation equation: Second order differential equation for the 4-vector which measures the distance between reference points on neighboring world lines in spacetime manifolds.
FAE Pirani, I Ciufolini, JL Synge, JL Synge, JL Synge, JL Synge, P Szekeres, T Levi-Civita   +7 more
core   +1 more source

Land data assimilation of satellite‐based surface soil moisture: Impact on atmospheric simulations over the contiguous United States

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Soil Moisture Active Passive soil moisture retrievals are assimilated into a land surface model and the resulting land reanalysis product is used to initialise the land component of coupled land‐atmosphere experiments. We show that the local impact of land data assimilation on the atmosphere is influenced by two factors: the magnitude by which it ...
Zdenko Heyvaert, Michel Bechtold, Wouter Dorigo, Jonas Mortelmans, Daniel Hagan, Joseph Santanello, Gabriëlle De Lannoy   +6 more
wiley   +1 more source

A Review of Interferometric Synthetic Aperture RADAR (InSAR) Multi-Track Approaches for the Retrieval of Earth’s Surface Displacements

Applied Sciences, 2017
Synthetic Aperture RADAR Interferometry (InSAR) provides a unique tool for the quantitative measurement of the Earth’s surface deformations induced by a variety of natural (such as volcanic eruptions, landslides and earthquakes) and anthropogenic (e.g ...
Antonio Pepe, Fabiana Calò
doaj   +1 more source

Observing earth from Skylab [PDF]

Skylab technology and observations of earth resources are discussed. Special attention was given to application of Skylab data to mapmaking, geology/geodesy, water resources, oceanography, meteorology, and geography ...

core   +1 more source

Efficient analysis and representation of geophysical processes using localized spherical basis functions

, 2009
While many geological and geophysical processes such as the melting of icecaps, the magnetic expression of bodies emplaced in the Earth's crust, or the surface displacement remaining after large earthquakes are spatially localized, many of these ...
Beggan, Ciaran D., Hawthorne, Jessica C., Simons, Frederik J.   +2 more
core   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

River Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert, Theresa Himmelsbach, Florian Pöppl, Lucas Dammert, Martin Pfennigbauer, Gottfried Mandlburger   +5 more
wiley   +1 more source

On the compatibility of single‐scan terrestrial LiDAR with digital photogrammetry and field inventory metrics of vegetation structure in forest and agroforestry landscapes

Remote Sensing in Ecology and Conservation, EarlyView.
The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu, Nereoh Leley, Caleb W. T. Ngaba, Anthony Macharia, Henry Muchiri, Abdalla Kisiwa, Martin Ehbrecht, Delphine Clara Zemp   +7 more
wiley   +1 more source

GEODESY, CARTOGRAPHY AND AERIAL PHOTOGRAPHY [PDF]

, 2018
Л. С. Мончак, S. H. Anikeiev
openalex   +3 more sources

Risk analysis in surveying works related to roads construction

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2019
This study aimed to indicate the identified risk factors, which is the first stage in the presented method for risk analysis in geodetic works. The experts’ opinion, analysis of available documentation, experience, subject literature review, and ...
Magdalena Kowacka, Dariusz Skorupka, Artur Duchaczek, Agnieszka Waniewska, Dominika Dudziak-Gajowiak   +4 more
doaj   +1 more source

Evaluating the Role of Social Capital for the Design of Sustainable River Governance Strategies: The Case of Tagus River

Sustainable Development, EarlyView.
ABSTRACT This study examines the role of social capital in designing and implementing more effective governance strategies to improve the state of the Tagus River's significantly deteriorated middle reach (Spain). We employed social network analysis (SNA) to evaluate the bonding, bridging and linking social capital and the quality of stakeholder ...
Leticia Blázquez, Juan A. García, José M. Bodoque   +2 more
wiley   +1 more source