Results 91 to 100 of about 144,469 (220)

Unveiling the First Impressions of the Wide‐Swath Altimetry SWOT Mission Over the Ganga River, India

open access: yesGeophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract The Surface Water and Ocean Topography (SWOT) mission offers novel global observations of river hydrodynamics, yet its performance across varied river morphologies remains understudied. We evaluate SWOT node and raster products over a ∼210 km stretch of the Ganga River, India, during the fast‐sampling phase, using GNSS‐based continuous ...
Pankaj R. Dhote   +11 more
wiley   +1 more source

Coseismic Vertical Displacement for a Shallow Thrust Earthquake From EarthDEM Data

open access: yesGeophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Coseismic vertical displacements are important observations that help improve our understanding of fault mechanisms and how earthquakes alter landscapes. It has been a challenge to quantify long‐wavelength topographic changes for thrust earthquakes using optical satellite imagery, as most recent studies focus on strike‐slip earthquakes that ...
Chunli Dai   +4 more
wiley   +1 more source

SWOT Water Surface Elevation in Herbaceous Wetlands of Florida's Everglades

open access: yesGeophysical Research Letters, Volume 52, Issue 9, 16 May 2025.
Abstract Observing water level variations in wetlands is important for tracking global water and carbon cycles. The Surface Water and Ocean Topography (SWOT) mission was launched to measure Earth's surface waters, but its performance in vegetated wetlands was unknown.
Solomon Kica   +3 more
wiley   +1 more source

Processing System and Algorithm for the TanDEM-X Mission [PDF]

open access: yes, 2009
In 2009, the German radar satellite TerraSAR-X will be supplemented with the TanDEM-X satellite to form the first bi-static single pass interferometer in space.
Brcic, Ramon   +7 more
core  

The TanDEM-X mission: A satellite formation for high resolution SAR interferometry [PDF]

open access: yes, 2007
TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurements) is an innovative spaceborne radar interferometer mission that was approved for full implementation by the German Space Agency in spring 2006.
Hajnsek, Irena   +19 more
core   +1 more source

Moving Target Imaging Using GNSS-Based Passive Bistatic Synthetic Aperture Radar

open access: yesRemote Sensing, 2020
Current studies of global navigation satellite systems (GNSS)-based bistatic synthetic aperture radar (GNSS-SAR) is focused on static objects on land. However, moving target imaging is also very significant for modern SAR systems. Imaging a moving target
Zhen-Yu He   +3 more
doaj   +1 more source

A New Age of SAR: How Can Commercial Smallsat Constellations Contribute to NASA's Surface Deformation and Change Mission?

open access: yesEarth and Space Science, Volume 12, Issue 1, January 2025.
Abstract In response to the 2017 Decadal Survey, NASA conducted a five‐year study on the Surface Deformation and Change (SDC) designated observable to study potential mission concepts. As part of the SDC mission study, the Commercial Synthetic Aperture Radar (ComSAR) subgroup was tasked with evaluating the current landscape of the SAR and ...
Stacey A. Huang   +9 more
wiley   +1 more source

Bi- and Multistatic SAR: Potentials and Challenges [PDF]

open access: yes, 2004
Bi- and multistatic synthetic aperture radar (SAR) operates with distinct transmit and receive antennas which are mounted on separate platforms. Such a spatial separation has several operational advantages which will increase the capability, reliability ...
Moreira, Alberto   +2 more
core  

Are Pixel Intensities Proportional To Radar Cross Section In SAR Images? [PDF]

open access: yes, 2012
Radar cross section has long been the measurement quantity of choice to describe the radar reflectivity of point targets in calibrated synthetic aperture radar (SAR) images.
Döring, Björn J.   +3 more
core   +1 more source

TanDEM-X - The First Bistatic SAR Formation in Space [PDF]

open access: yes, 2006
TanDEM-X opens a new era in space borne radar remote sensing. The first bistatic SAR mission, is formed by adding a second, almost identical spacecraft, to TerraSAR-X and flying the two satellites in a closely controlled formation with typical distances ...
Werner, Marian   +5 more
core  

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