Results 71 to 80 of about 730 (175)

Ice-sheet elevations from across-track processing of airborne interferometric radar altimetry

, 2009
Interferometric Radar Altimeters (IRA's) use dual receive antennas to overcome one of the spatial limitations of pulse-limited altimeters. In a conventional IRA measurement, the range and across-track direction of a scatterer are determined using the ...
Cullen, R., Helm, Veit, Cullen, R, Wingham, D. J., Wingham, DJ, Hawley, R. L., Hawley, RL, Helm, V, Sheperd, A., Shepherd, A   +9 more
core   +1 more source

Data-Driven Calibration of SWOT’s Systematic Errors: First In-Flight Assessment

Remote Sensing
The SWOT satellite, carrying the KaRIN first wide-swath onboard altimeter, was launched in December 2022, and has now delivered more than a year of surface water elevation data over the ocean and inland lakes/rivers. These data are affected by systematic
Clément Ubelmann, Gérald Dibarboure, Benjamin Flamant, Antoine Delepoulle, Maxime Vayre, Yannice Faugère, Pierre Prandi, Matthias Raynal, Frédéric Briol, Geoffroy Bracher, Emeline Cadier   +10 more
doaj   +1 more source

Satellite gravity – enhancements from new satellites and new altimeter technology

, 2019
This paper reviews the impacts of new satellite altimeter data sets and new technology on the production of satellite gravity. It considers the contribution of the increased data volume, the application of new altimeter acquisition technology and the ...
Campbell, S. J., S.J. Campbell, S. Cheyney, Fletcher, KMU, K.M.U. Fletcher, Fletcher, K. M.U., G.J. Dawson, Green, CM, Dawson, G. J., Green, C. M., Campbell, SJ, C.M. Green, Dawson, GJ, Cheyney, S., Cheyney, S   +14 more
core   +1 more source

A Rotating Knife-beam Altimeter for Wide-swath Remote Sensing of Ocean: Wind and Waves

, 2014
: The use of a nadir altimeter radar with a rotating knife-beam antenna pattern is considered for improved measurements of the sea surface wind and wave parameters over a wide swath.
P. Challenor, M. B. Kanevsky, Graham D. Quartly, Ge Chen, V. Yu. Karaev, E. M. Meshkov, G. N. Bal, C. Gommenginger   +7 more
core  

WIDE-SWATH IMAGING LIDAR DEVELOPMENT FOR AIRBORNE AND SPACEBORNE APPLICATIONS

, 2014
With laser altimetry becoming increasingly accepted by the global Earth science community as a source for accurate topographic data, there is now a desire to apply this technology to large area mapping.
J. Bryan Blair, Scott B. Luthcke, Michelle Hofton   +2 more
core  

Blending 2D topography images from the Surface Water and Ocean Topography (SWOT) mission into the altimeter constellation with the Level-3 multi-mission Data Unification and Altimeter Combination System (DUACS)

<jats:p>Abstract. The Surface Water and Ocean Topography (SWOT) mission delivers unprecedented swath-altimetry products. Despite SWOT's 2D coverage and precision, its Level-2 ocean products suffer from the same limitations as their counterparts ...
Chevrier, Robin, Cadier, Emeline, Picot, Nicolas, Pujol, Marie-Isabelle, Ubelmann, Clément, Briol, Frédéric, Prandi, Pierre, Raynal, Matthias, Faugere, Yannice, Delepoulle, Antoine, Tréboutte, Anaelle, Dibarboure, Gerald, Anadon, Cécile, Laloue, Alice, Morrow, Rosemary   +14 more
core   +1 more source

Using High-Resolution Altimetry to Observe Mesoscale Signals

, 2012
International audienceAn Ocean System Simulation Experiment is used to quantify the observing capability of the Surface Water and Ocean Topography (SWOT) mission and its contribution to higher-quality reconstructed sea level anomaly (SLA) fields using ...
Pujol, M.-I., Dibarboure, G., Le Traon, P.-Y., Klein, P.   +3 more
core   +1 more source

SWOT Observations Over Sea Ice: A First Look

Geophysical Research Letters
We present a first examination of observations from the surface water and ocean topography (SWOT) mission over the polar oceans. In SWOT, bright, quasi‐specular leads are associated with lower heights relative to the surrounding ice cover.
Sahra Kacimi, Sermsak Jaruwatanadilok, Ron Kwok   +2 more
doaj   +1 more source

Fine-Scale Eddies Detected by SWOT in the Kuroshio Extension

Remote Sensing
Conventional altimetry has greatly advanced our understanding of mesoscale eddies but falls short in studying fine-scale eddies (
Tianshi Du, Zhao Jing
doaj   +1 more source

A rotating knife-beam altimeter for wind-swath remote sensing of ocean: wind and waves

, 2006
The use of a nadir altimeter radar with a rotating knife-beam antenna pattern isconsidered for improved measurements of the sea surface wind and wave parameters over a wide swath.
Srokosz, M., Balandina, G.N., Meshkov, E.M., Gommenginger, C., Kanevsky, M.B., Challenor, P., Karaev, V.Y.   +6 more
core