Results 31 to 40 of about 119,207 (215)

From static to dynamic datums: 150 years of geodetic datums in New Zealand [PDF]

New Zealand Journal of Geology and Geophysics, 2016
ABSTRACT The geodetic system in New Zealand plays an important role in the development of our country. It comprises intellectual, physical and data components which provide authoritative coordinate systems for New Zealand's areas of territorial and administrative responsibility.
G Blick, N Donnelly
openaire   +1 more source

Evaluating Pose Estimation Uncertainty From Automatic Point Cloud Registration in Multi‐Sensor Robotic Systems

Journal of Field Robotics, EarlyView.
ABSTRACT The poses derived from automatic point cloud registration between stationary laser scans that occur naturally in robotic multi‐sensor systems operating in stop‐and‐go mode have the potential to greatly improve and aid localization and trajectory estimation.
Max Brandstätter, Markus Mikschi, Jelena Gabela, Finn Linzer, Hans Neuner   +4 more
wiley   +1 more source

Multi-epoch deformation analysis with geodetic datum invariance [PDF]

, 2023
[EN] Multiple epochs of geodetic deformation observations in 1D, 2D or 3D with their covariance matrices can be adjusted using the least-squares method and tested for deformation hypotheses, using the author’s hypothesis constrained multi-epoch analysis ...
Velsink, Hiddo
core  

Transformacija koordinata između Gaus-Krigerove i Svetske poprečne Merkatorove projekcije za teritoriju Srbije / Procedure and formulas for coordinate transformations between the Gauss-Krüger projections and the Universal Transverse Mercator projections for Serbia

Vojnotehnički Glasnik, 2008
U radu je prikazan postupak i predložene su formule za transformacije iz Gaus-Krigerove projekcije, koja se koristi u Srbiji, u Svetsku poprečnu Merkatorovu projekciju i obratno.
Stevan Radojčić
doaj   +1 more source

The implementation and advancement of a regional geodetic vertical datum

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The essential parameter in computing three-dimensional coordinate system is the height or depth of the Earth’s surface. It represents a particular reference surface that recognised as a vertical datum. The vertical datum is alienated into two foremost categories recognised as Mean Sea Level and Lowest Astronomical Tide ...
N M Yazid, A H M Din, A H Omar, M F Pa’suya, N M Abdullah   +4 more
openaire   +1 more source

Gradient Flows on Sparse Representations for PDE‐Regularized Inverse Problems

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT In this short paper, we summarize the theory of Atomic Gradient Flows (AGF) introduced in (Amend, Carioni and Zemas, arxiv:2603.25675, 2026), which provides a framework to construct gradient flows on sparse representations for convex regularized optimization problems.
Christian Amend, Marcello Carioni
wiley   +1 more source

Assessment of NAPGD2022's Performance in Oregon's Willamette Valley Using Astronomical Leveling and GNSS/Leveling

Earth and Space Science, Volume 13, Issue 11, November 2026.
Abstract The North American‐Pacific Geopotential Datum of 2022 (NAPGD2022) is anticipated to become the official height system of the United States in 2027. This new datum is realized through a suite of models, including GEOID2022 (geoid) and DEFLEC2022 (deflection of the vertical).
Müge Albayrak, Ryan A. Hardy, Christopher E. Parrish, Chase Simpson, Brian Weaver, Sébastien Guillaume, Susanna Eng   +6 more
wiley   +1 more source

Partitions of normalised multiple regression equations for datum transformations [PDF]

, 2022
Multiple regression equations (MREs) provide an empirical direct method of transforming coordinates between geodetic datums. Since they offer a means of modelling distortions, they are capable of a more accurate fit to datum-shift datasets than more ...
Ruffhead, Andrew Carey
core   +1 more source

EMIT Reveals Elevated Calcite Signatures in Shorelines of Lake Powell and Lake Mead Exposed by Drought and Colorado River Management

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Nearly half of Earth’s seasonal freshwater storage variability occurs in human‐managed reservoirs, resulting in large areas of reservoir‐bed that are episodically inundated or subaerially exposed. Here we use hyperspectral data from NASA’s Earth Surface Mineral Dust Source Investigation (EMIT) mission to map calcite mineral assemblages across ...
Michael R. Fischella, Joel B. Sankey, Ray Kokaly, Amy East, Alan Kasprak, Joshua Caster, Bridget R. Deemer, Ryan Crow, Skyler Mavor, Derek V. Mallia   +9 more
wiley   +1 more source

Some key facts for the realization of a modern National Geodetic Reference System/Frame: The Hellenic case [PDF]

Micro, Macro & Mezzo Geoinformation
The realization of a modern National Geodetic Reference System/Frame (NGRSF) for each country plays a crucial role in many applications, such as cadastre, public works, and, lately, the monitoring of climate change (at least at the local scale).
Dimitrios Ampatzidis, Alexandros Konstantinidis, Konstantinos Papatheodorou   +2 more
doaj   +1 more source