Results 61 to 70 of about 3,082 (144)

The evolutionary trend in airborne and satellite radar altimeters [PDF]

open access: yes, 1984
The manner in which airborne and satellite radar altimeters developed and where the trend is leading was investigated. The airborne altimeters have progressed from a broad beamed, narrow pulsed, nadir looking instrument, to a pulse compressed system that
Fedor, L. S., Walsh, E. J.
core   +1 more source

SWOT Global Bathymetry Modeling Using Deep Neural Networks Trained on Multiple Geophysical Features

open access: yesEarth and Space Science, Volume 12, Issue 11, November 2025.
Abstract This paper presents BathDNN25, a global bathymetry model developed using gravity data derived from wide‐swath altimetry collected by the Surface Water and Ocean Topography (SWOT) mission, with shipborne bathymetry serving as training data in a deep neural network (DNN) framework.
Farshad Salajegheh   +4 more
wiley   +1 more source

System Concepts for Bi- and Multi-Static SAR Missions [PDF]

open access: yes, 2003
The performance and capabilities of bi- and multistatic spaceborne synthetic aperture radar (SAR) are analyzed. Such systems can be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass cross-track ...
Fiedler, Hauke   +4 more
core  

Lava Tube System Development Defined by Multispectral Imaging and InSAR: The Case of the 2024 Eruption of Fernandina Volcano (Galápagos)

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract Lava tubes are subsurface conduits within a lava flow that feed its advance. Lava tube detection is important to understand lava flow dynamics and to mitigate geohazards. Here we use InSAR‐derived surface motion data, in combination with shortwave and thermal infrared imagery, to delineate a ∼14 km long lava tube system at Fernandina volcano ...
Alexis Hrysiewicz   +6 more
wiley   +1 more source

Data Requirements for Oceanic Processes in the Open Ocean, Coastal Zone, and Cryosphere [PDF]

open access: yes
The type of information system that is needed to meet the requirements of ocean, coastal, and polar region users was examined. The requisite qualities of the system are: (1) availability, (2) accessibility, (3) responsiveness, (4) utility, (5) continuity,
Mccandless, S. W., Jr., Nagler, R. G.
core   +1 more source

Observations of sea ice and icebergs from satellite radar altimeters [PDF]

open access: yes, 1984
Satellite radar altimeters can make useful contributions to the study of sea ice both by enhancing observations from other instruments and by providing a unique probe of ocean-ice interaction in the Marginal Ice Zone (MIZ).
Rapley, C. G.
core   +1 more source

River monitoring from satellite radar altimetry in the Zambezi River basin [PDF]

open access: yes, 2012
Satellite radar altimetry can be used to monitor surface water levels from space. While current and past altimetry missions were designed to study oceans, retracking the waveforms returned over land allows data to be retrieved for smaller water bodies or
Bauer-Gottwein, Peter   +4 more
core   +3 more sources

Small‐Scale, High‐Frequency Ice, and Ocean Processes in the Amundsen Sea Embayment, West Antarctica

open access: yesJournal of Advances in Modeling Earth Systems, Volume 17, Issue 11, November 2025.
Abstract In proximity of the Antarctic ice sheet, oceanic motions with different spatial structures contribute to the transport of warm water onto the continental shelf, fueling submarine ice‐shelf melting. Emerging evidence suggests that km‐sized ocean submesoscale fronts and eddies significantly impact ice‐ocean interactions on timescale of a few ...
M. Poinelli   +6 more
wiley   +1 more source

Microwave remote sensing from space [PDF]

open access: yes, 1985
Spaceborne microwave remote sensors provide perspectives of the earth surface and atmosphere which are of unique value in scientific studies of geomorphology, oceanic waves and topography, atmospheric water vapor and temperatures, vegetation ...
Carver, Keith R.   +2 more
core   +1 more source

Submesoscale Air‐Sea Interactions as Revealed by SWOT

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract At midlatitudes, air‐sea interactions have been documented in numerical models, in situ campaigns and satellite observations down to the ocean mesoscales. However little is known about scales of a few kilometers (the submesoscales). The new satellite mission Surface Water and Ocean Topography (SWOT) provides a global coverage of these scales ...
M. Kaouah   +4 more
wiley   +1 more source

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