Results 11 to 20 of about 10,281 (219)

Effects of Interferometric Radar Altimeter Errors on Marine Gravity Field Inversion [PDF]

Sensors, 2020
The traditional altimetry satellite, which is based on pulse-limited radar altimeter, only measures ocean surface heights along tracks; hence, leads to poorer accuracy in the east component of the vertical deflections compared to the north component ...
Xiaoyun Wan, Shuanggen Jin, Bo Liu, Song Tian, Weiya Kong, Richard Fiifi Annan   +5 more
doaj   +2 more sources

Contribution of a Wide-Swath Altimeter in a Shelf Seas Assimilation System: Impact of the Satellite Roll Errors [PDF]

Journal of Atmospheric and Oceanic Technology, 2008
Abstract The authors investigate the potential qualitative improvement brought by wide-swath, interferometry-based ocean altimetry measurements with respect to classical nadir altimeters in a coastal/shelf data assimilation system. In addition, particular attention is paid to roll errors, which could significantly reduce the expected ...
Le Henaff, M., de Mey, P., Mourre, B., Le Traon, P. Y.   +3 more
openaire   +4 more sources

A Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Short-wavelength (15–150 km) ocean phenomena are difficult to be observed by conventional altimeter due to the sampling method limited the resolution of the data.
Chen Wang, Fangjie Yu, Zhiyuan Zhuang, Junwu Tang, Hanwei Sun, Ge Chen   +5 more
doaj   +2 more sources

On the Approximation of Precision Matrices for Wide-Swath Altimetry

Remote Sensing
New observations of ocean surface topography obtained by wide-swath satellite interferometry require new capabilities to process spatially correlated errors in order to assimilate these data into numerical models.
Max Yaremchuk, Christopher Beattie, Gleb Panteleev   +2 more
doaj   +2 more sources

Airborne Rain-Rate Measurement with a Wide-Swath Radar Altimeter

Journal of Atmospheric and Oceanic Technology, 2014
Abstract The NOAA Wide-Swath Radar Altimeter (WSRA) uses 80 narrow beams spread over ±30° in the cross-track direction to generate raster lines of sea surface topography at a 10-Hz rate from which sea surface directional wave spectra are produced.
Ivan PopStefanija, Edward J. Walsh, Sergey Y. Matrosov, Jian Zhang, Eric Uhlhorn, Brad Klotz   +5 more
openaire   +2 more sources

Measuring Storm Surge with an Airborne Wide-Swath Radar Altimeter

Journal of Atmospheric and Oceanic Technology, 2009
Abstract Over the years, hurricane track forecasts and storm surge models, as well the digital terrain and bathymetry data they depend on, have improved significantly. Strides have also been made in the knowledge of the detailed variation of the surface wind field driving the surge.
W. B. Krabill, E. J. Walsh, C. W. Wright, W. A. Shaffer, S. R. Baig, M. Peng, L. J. Pietrafesa, A. W. Garcia, F. D. Marks, P. G. Black, J. Sonntag, B. D. Beckley   +11 more
openaire   +2 more sources

Wide-Swath Altimetric Satellite Data Assimilation With Correlated-Error Reduction

Frontiers in Marine Science, 2020
For decades now, satellite altimetric observations have been successfully integrated in numerical oceanographic models using data assimilation (DA). So far, sea surface height (SSH) data were provided by one-dimensional nadir altimeters.
Sammy Metref, Emmanuel Cosme, Florian Le Guillou, Julien Le Sommer, Jean-Michel Brankart, Jacques Verron, Jacques Verron   +6 more
doaj   +2 more sources

Reconstruction of Wide Swath Significant Wave Height From Quasi‐Synchronous Observations of Multisource Satellite Sensors

Earth and Space Science
Global sea wave monitoring is of utmost importance for tasks such as analysis of ocean climate change, offshore fisheries, and early warning of marine disasters. Significant wave height (SWH) is one of the most vital and widely used metrics for measuring
Yuchao Yang, Jinpeng Qi, Qiushuang Yan, Chenqing Fan, Rui Zhang, Jie Zhang   +5 more
doaj   +2 more sources

END-TO-END PHYSICS-INFORMED REPRESENTATION LEARNING FOR SATELLITE OCEAN REMOTE SENSING DATA: APPLICATIONS TO SATELLITE ALTIMETRY AND SEA SURFACE CURRENTS [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
This paper addresses physics-informed deep learning schemes for satellite ocean remote sensing data. Such observation datasets are characterized by the irregular space-time sampling of the ocean surface due to sensors’ characteristics and satellite ...
R. Fablet, M. M. Amar, Q. Febvre, M. Beauchamp, B. Chapron   +4 more
doaj   +1 more source

Quantifying Multifrequency Ocean Altimeter Wind Speed Error Due to Sea Surface Temperature and Resulting Impacts on Satellite Sea Level Measurements

Remote Sensing, 2023
Surface wind speed measurements from a satellite radar altimeter are used to adjust altimeter sea level measurements via sea state bias range correction.
Ngan Tran, Douglas Vandemark, François Bignalet-Cazalet, Gérald Dibarboure   +3 more
doaj   +1 more source