Results 111 to 120 of about 26,941 (300)

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

Does Geocentric Sea‐Level Rise in the Maritime Continent Reveal a Tectonic Fingerprint?

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The islands of the Maritime Continent are highly vulnerable to sea‐level rise driven by barystatic, sterodynamic, and vertical land motion (VLM) processes. While tectonics is known to affect relative sea‐level through VLM, its influence on long‐term geocentric sea level (GSL) through crustal deformation and gravity field perturbations remains ...
Nidheesh Gangadharan   +5 more
wiley   +1 more source

Accelerometer Data Transplant for Future Satellite Gravimetry

open access: yesEarth and Space Science
Accurate monitoring of the Earth's gravity field is crucial for understanding mass redistribution processes related to climate change, hydrology, and geodynamics.
Mohsen Romeshkani   +4 more
doaj   +1 more source

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

A First Attempt at Reconstructing FengYun‐4B Stratified Precipitable Water Using GNSS

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Layer Precipitable Water (LPW) characterizes the vertical structure of atmospheric moisture and is essential for accurate weather forecasts. China's FY‐4B satellite delivers near‐real‐time LPW products, but is constrained by large uncertainties.
Yuhao Wu   +4 more
wiley   +1 more source

Comprehensive Analysis of HY-2B/2C/2D Satellite-Borne GPS Data Quality and Reduced-Dynamic Precise Orbit Determination

open access: yesAerospace
The deployment of the HY-2B/2C/2D satellite constellation marks a significant advancement in China’s marine dynamic environmental satellite program, forming a robust three-satellite network.
Xin Jin   +5 more
doaj   +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

Unconstrained GNSS Water Vapor Tomography With Real Data and LEO Augmentation

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The availability of four complete GNSS constellations (GPS, GLONASS, BeiDou and Galileo) offers, for the first time, the possibility of performing water vapor tomographic inversions that do not rely on external data. A tomographic model that includes no external constraints and requires no first guess and no virtual observations is described ...
P. M. A. Miranda   +3 more
wiley   +1 more source

3D Variations in Viscosity Reconcile the Strength of the Lower Mantle Inferred From Glacial Isostatic Adjustment and Mantle Convection

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A widely accepted global model of glacial isostatic adjustment (GIA) is based on ICE‐6G ice loading and 1D‐viscosity model VM5a, a viscosity profile which remains at odds with mantle convection constraints such as from geoid modeling. We explore 3D‐viscosity variations in models of GIA and show that a model with lateral viscosity variations ...
A. Bellas‐Manley   +3 more
wiley   +1 more source

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