Results 91 to 100 of about 9,522 (229)

Water storage variations in the Poyang Lake Basin estimated from GRACE and satellite altimetry

Geodesy and Geodynamics, 2016
The Gravity Recovery and Climate Experiment (GRACE) satellite mission provides a unique opportunity to quantitatively study terrestrial water storage (TWS) variations.
Yang Zhou, Shuanggen Jin, Robert Tenzer, Jialiang Feng   +3 more
doaj   +1 more source

Reconstructing Digital Elevation Models From Single Synthetic Aperture Radar Images

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Traditional radar‐based methods of generating topography involve complex dual‐antenna or formation‐flying satellite configurations, interferometric processing, and specialized expertise. We present an approach for reconstructing digital elevation models (DEMs) from single Synthetic Aperture Radar (SAR) images using deep learning.
W. Hamish Mitchell, Miriam Cha, Michael Newey, J. Taylor Perron   +3 more
wiley   +1 more source

Thermohaline variability of AAIW in the Atlantic sector of the Southern Ocean investigated using an Altimetry Gravest Empirical Mode

, 2013
The southeast Atlantic sector of the Southern Ocean connects the Atlantic with the Indian Ocean and the Antarctic Circumpolar Current, thereby acting as a major conduit within global ocean circulation.
Hutchinson, Katherine Alessandra
core  

A VGGNet-Based Method for Refined Bathymetry from Satellite Altimetry to Reduce Errors

, 2022
Only approximately 20% of the global seafloor topography has been finely modeled. The rest either lacks data or its data are not accurate enough to meet practical requirements.
Mingwei Wang, Ziyin Wu, Xiaolun Chen, Xiaoming Qin, Hongyang Wan, Xiaowen Luo, Jihong Shang, Bin Li   +7 more
core   +1 more source

A Deep Ensemble Transformer Model for Global Ionosphere Prediction and Uncertainty Quantification

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Accurate global ionospheric forecasting is important for various purposes, from geophysical research to practical applications, including real‐time precise positioning and navigation. Existing studies primarily focus solely on deterministic predictions and often overlook uncertainty quantification.
Shuyin Mao, Junyang Gou, Benedikt Soja
wiley   +1 more source

Resolving Sharper Fronts of the Agulhas Current Retroflection Using SWOT Altimetry

Geophysical Research Letters
As a cutting‐edge altimetry product, the Surface Water and Ocean Topography (SWOT) satellite observations require validation against in situ measurements and existing satellite data sets.
S. Coadou‐Chaventon, S. Swart, G. Novelli, S. Speich   +3 more
doaj   +1 more source

Ionospheric Data Fusion With GNSS, GNSS‐RO and Satellite Altimetry Based on Machine Learning

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Global Ionospheric Maps (GIMs) are essential in Global Navigation Satellite System (GNSS) applications, particularly for correcting ionospheric delays in single‐frequency positioning. GIMs are mainly derived from dual‐frequency GNSS observations, but the uneven distribution of ground stations—sparse over oceans—reduces accuracy in these ...
Marcel Iten, Shuyin Mao, Benedikt Soja
wiley   +1 more source

ALTIMETRY BY CASSINI RADAR: PROCESSING AND SIMULATION

, 2009
The Cassini mission, that is a joint NASA/ESA/ASI effort, has recently offered the unique possibility of exploring Titan, the largest moon of Saturn, that is the only satellite in the solar system to host an appreciable atmosphere, which unfortunately ...
Alberti, Giovanni
core  

A Multi‐Scale Probabilistic Machine Learning Model for Balanced and Unbalanced Sea Surface Height Decomposition

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Sea surface height (SSH) reflects a superposition of balanced motions (BM) and unbalanced motions (UBM), which play distinct roles in ocean dynamics and energetics. The Surface Water and Ocean Topography (SWOT) satellite provides two‐dimensional SSH maps at spatial resolutions where BM and UBM coexist, but its 21‐day repeat cycle precludes ...
Yue Wang, Jingwen Lyu, Tatsu Monkman, Spencer Jones, Christian Pedersen, Dhruv Balwada   +5 more
wiley   +1 more source

Observing sea levels in the China seas from satellite altimetry

, 2018
Due to the threat of global warming, extensive studies of the natural and anthropogenic causes of sea level change have been performed. The use of satellite altimetry contributes enormously to such studies, especially where in situ observations are rare.
Xiangbo Feng, Feng, Xiangbo, Cheng, Yongcun, Yongcun Cheng   +3 more
core   +1 more source