Results 101 to 110 of about 26,637 (257)

Basic research and data analysis for the National Geodetic Satellite Program [PDF]

open access: yes
Reports and papers dealing with data analysis for the National Geodetic Satellite Program by Ohio State University's Department of Geodetic Science are ...
Mueller, I. I.
core   +1 more source

GeoNav: Enhancing field phenotyping with high‐precision global navigation systems integration in the Field Book mobile application

open access: yesCrop Science, Volume 66, Issue 2, March/April 2026.
Abstract Field data collection is a key activity in plant breeding, underpinning efforts to develop crop varieties with improved yields, disease resistance, and climate adaptability. Accurately associating data with the correct field plots is critical for selection and genetic improvement but can be challenging, especially in large experiments.
Keo Corak   +8 more
wiley   +1 more source

The Uganda Gravimetric Geoid Model 2014 Computed by The KTH Method

open access: yesJournal of Geodetic Science, 2015
For many developing countries such as Uganda, precise gravimetric geoid determination is hindered by the low quantity and quality of the terrestrial gravity data.
Sjöberg L. E., Gidudu A., Ssengendo R.
doaj   +1 more source

Aquatic reflectance derived from Sentinel‐2 Multispectral Imager data for inland waters in the conterminous United States

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract Satellite‐based earth observation is a robust tool for tracking change in ecosystems. While terrestrially focused applications of remote sensing have empowered wide adoption for research and management, remote sensing of inland aquatic ecosystems remains comparably nascent.
Scott D. Ducar   +9 more
wiley   +1 more source

Investigation of a geodesy coexperiment to the Gravity Probe B relativity gyroscope program [PDF]

open access: yes
Geodesy is the science of measuring the gravitational field of and positions on the Earth. Estimation of the gravitational field via gravitation gradiometry, the measurement of variations in the direction and magnitude of gravitation with respect to ...
Everitt, C. W. F.   +2 more
core   +1 more source

A Re‐Examination of Foundational Elements of Cosmology

open access: yesFortschritte der Physik, Volume 74, Issue 3, March 2026.
ABSTRACT This paper undertakes a conceptual re‐examination of several foundational elements of cosmology through the lens of spacetime symmetries. A new derivation of the Friedmann–Lemaître–Robertson–Walker metric is obtained by a careful conceptual examination of rotations and translations on generic manifolds, followed by solving the rotational and ...
Lavinia Heisenberg
wiley   +1 more source

LARES Satellite Thermal Forces and a Test of General Relativity

open access: yes, 2016
We summarize a laser-ranged satellite test of frame-dragging, a prediction of General Relativity, and then concentrate on the estimate of thermal thrust, an important perturbation affecting the accuracy of the test.
Brooks, Jason   +13 more
core   +1 more source

Large‐Scale Deformation, Strain Characteristics, and Locking Distribution of the Qilian‐Haiyuan Fault System

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract The Qilian‐Haiyuan fault system is the main tectonic boundary of the northeastern Tibetan Plateau, controlling the regional tectonic deformation and seismic activity. Extensive Sentinel‐1 SAR data (2014–2021) are used to map the regional tectonic deformation, strain distribution, and locking along primary and secondary faults.
Donglin Wu   +6 more
wiley   +1 more source

Sea Surface Signal Extraction for Photon-Counting LiDAR Data: A General Method by Dual-Signal Unmixing Parameters

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The ice, cloud, and land elevation satellite-2 (ICESat-2) is the only satellite that produces photon-counting light detection and ranging data, and is equipped with the advanced topographic laser altimeter system.
Zhen Wen   +6 more
doaj   +1 more source

Perspectives in measuring the PPN parameters beta and gamma in the Earth's gravitational fields with the CHAMP/GRACE models

open access: yes, 2007
The current bounds on the PPN parameters gamma and beta are of the order of 10^-4-10^-5. Various missions aimed at improving such limits by several orders of magnitude have more or less recently been proposed like LATOR, ASTROD, BepiColombo and GAIA ...
Ciufolini I.   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy