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Improved Arctic Sea Ice Freeboard Retrieval from Satellite Altimetry Using Optimized Sea Surface Decorrelation Scales

Jack C. Landy, Jerome Bouffard, Chris Wilson, Stefanie Rynders, Yevgeny Aksenov, Michel Tsamados
2021 Journal of Geophysical Research - Oceans  
This requires us to understand how rapidly the Arctic sea level varies over space and time, which we do use ESA's CryoSat-2 satellite radar altimeter.  ...  The new method is not restricted to a particular sensor or mode, so it can be generalized to all present and historic polar altimetry missions.  ...  Acknowledgments The authors would like to thank the European Space Agency for pre-processing the CryoSat-2 observations to waveform Level 1B.  ... 
doi:10.1029/2021jc017466 fatcat:ybcsh57pznbjxhy3uieb3w2zse

Consolidating ICESat-2 Ocean Wave Characteristics with CryoSat-2 during the CRYO2ICE Campaign

Bjarke Nilsson, Ole Baltazar Andersen, Heidi Ranndal, Mikkel Lydholm Rasmussen
2022 Remote Sensing  
Using the Ice, Cloud, and land Elevation Satellite 2 (ICESat-2) global high-resolution elevation measurements, it is possible to distinguish individual surface ocean waves.  ...  Three models based on ICESat-2 are used in the comparison: the standard ocean data output (ATL12), a method of modeling the individual surface waves using the geolocated photons and, functioning as a baseline  ...  Acknowledgments: We thank the NASA National Snow and Ice Data Center (NSIDC) and the Radar Altimeter Database System (RADS) for distributing the satellite altimetry data, and the North West Shelf Data  ... 
doi:10.3390/rs14061300 fatcat:r7uolmofk5dvlggcxfrfdmzw3i

Exploring the Benefits of UsingCryoSat-2's Cross-Track Interferometry to Improve the Resolution of Multisatellite Mesoscale Fields

G. Dibarboure, P. Y. Le Traon, N. Galin
2013 Journal of Atmospheric and Oceanic Technology  
This paper explores the potential of the cross-track slope derived from the Cryosphere Satellite-2 (CryoSat-2)'s synthetic aperture radar interferometry (SARin) mode to increase the resolution of mesoscale  ...  Although only limited experiments might be possible with the error level of current CryoSat-2 data, this paper shows the potential of the SAR interferometry technology to reduce the anisotropy of altimeter  ...  M, S.Philipps, N.Picot, E.Bronner (2010): Jason-2 global statistical assessment 539 and cross-calibration with Jason-1.  ... 
doi:10.1175/jtech-d-12-00156.1 fatcat:po3gc2mv5jcllnyykz6a43okii

Results of the Dragon 4 Project on New Ocean Remote Sensing Data for Operational Applications

Ferran Gibert, Jacqueline Boutin, Wolfgang Dierking, Alba Granados, Yan Li, Eduard Makhoul, Junmin Meng, Alexandre Supply, Ester Vendrell, Jean-Luc Vergely, Jin Wang, Jungang Yang (+3 others)
2021 Remote Sensing  
To improve sea ice thickness retrieval, a new method was developed to match the Cryosat-2 radar waveform.  ...  data over the Yellow Sea; the assessment of sea surface height (SSH), significant wave height (SWH), and wind speed measurements using different altimeters and CFOSAT SWIM; and the fusion of SSH measurements  ...  Acknowledgments: Dragon 4 No. 32292 team members thank Bernat Martínez for initiating and promoting the development of this project.  ... 
doi:10.3390/rs13142847 fatcat:jsh2gqsdkzhrhhetjpsw6f3aqi

Review of Radar Altimetry Techniques over the Arctic Ocean: Recent Progress and Future Opportunities for Sea Level and Sea Ice Research

Graham D. Quartly, Eero Rinne, Marcello Passaro, Ole B. Andersen, Salvatore Dinardo, Sara Fleury, Kevin Guerreiro, Amandine Guillot, Stefan Hendricks, Andrey A. Kurekin, Felix L. Müller, Robert Ricker (+2 others)
2018 The Cryosphere Discussions  
This paper reviews the techniques for deriving useful geophysical information over a mix of leads and ice floes, covering the approaches for both conventional (low rate mode) altimetry and the newer delay-Doppler  ...  Radar altimeters provide an important means of quantifying changes in sea level and sea-ice thickness, although there are increased complexities in the interpretation of their data over such a variable  ...  Figure 20 . 20 Mode mask v3.9 for CryoSat-2 operations: CryoSat-2 operates in SAR mode over most of the Arctic Ocean, with SARin mode over the Canadian archipelago and most Arctic islands and LRM mode  ... 
doi:10.5194/tc-2018-148 fatcat:nkgpjm27r5bexiopyp4anbb3di

Remote Sensing Systems for Ocean: A Review (Part 2: Active Systems)

Meisam Amani, Farzaneh Mohseni, Nasir Farsad Layegh, Mohsen Eslami Nazari, Farzam Fatolazadeh, Abbas Salehitangrizi, Seyed Ali Ahmadi, Hamid Ebrahimy, Arsalan Ghorbanian, Shuanggen Jin, Sahel Mahdavi, Armin Moghimi
2022 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
Here, in part 2, seven active RS systems, including scatterometers, altimeters, gravimeters, Synthetic Aperture Radar (SAR), Light Detection and Ranging (LiDAR), Sound Navigation and Ranging (SONAR), High-Frequency  ...  Part 1 of this review paper was dedicated to reviewing passive RS systems and their main applications in the ocean.  ...  The nearly 30 years of WM data over global oceans have been captured through the ESA's SAR platforms, including ERS-2, ENVISAT, Sentinel-1A/1B, and the Chinese GaoFen-3 SAR [207] .  ... 
doi:10.1109/jstars.2022.3141980 fatcat:kc55frb76nbtfkkfabvhbtflem

Ensuring that the Sentinel-3A altimeter provides climate-quality data

Graham Quartly, Francesco Nencioli, Sylvie Labroue, Pierre Femenias, Remko Scharroo, Saleh Abdalla, Pascal Bonnefond, Mathilde Cancet, Marie-laure Frery, Matthias Raynal, Steven Baker, Alan Muir (+10 others)
2017 Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2017  
Over the ocean the SRAL's return pulses are analysed to give range to the sea surface, wave height and signal strength (which can be interpreted as wind speed).  ...  Its suite of instruments for measuring surface topography includes a Microwave Radiometer (MWR) and SRAL, the first delay-Doppler instrument to provide global coverage.  ...  At present the recovery of useful height data is much less than achieved by Cryosat-2 in SAR mode (Fig. 17 ).  ... 
doi:10.1117/12.2277593 fatcat:mwdyslsa4vgj7ezbkodr4r5tqm

Jason continuity of services: continuing the Jason altimeter data records as Copernicus Sentinel-6

Remko Scharroo, Hans Bonekamp, Christelle Ponsard, François Parisot, Axel von Engeln, Milen Tahtadjiev, Kristiaan de Vriendt, François Montagner
2016 Ocean Science (OS)  
A key feature is the simultaneous pulse-limited and synthetic aperture radar processing allowing direct and continuous comparisons of the sea surface height measurements based on these processing methods  ...  </strong> The Sentinel-6 mission is proposed as a multi-partner programme to continue the Jason satellite altimeter data services beyond the Jason-2 and Jason-3 missions.  ...  The authors thank the wider multi-agency Sentinel-6 project team for providing further detailed information on the proposed system and programme. Edited by: J. A. Johannessen  ... 
doi:10.5194/os-12-471-2016 fatcat:iic27gky4rhazjabv63ybrlgti

Jason continuity of services: continuing the Jason altimeter data records as Copernicus Sentinel-6

R. Scharroo, H. Bonekamp, C. Ponsard, F. Parisot, A. von Engeln, M. Tahtadjiev, K. de Vriendt, F. Montagner
2015 Ocean Science Discussions  
A key feature is the simultaneous pulse-limited and synthetic aperture radar processing allowing direct and continuous comparisons of the sea surface height measurements based on these processing methods  ...  The Sentinel-6 mission is proposed as a multi-partner programme to continue the Jason satellite altimeter data services beyond the Jason-2 and Jason-3 missions.  ...  The authors thank the wider multi-agency Sentinel-6 project team for providing further detailed information on the proposed system and programme. Edited by: J. A. Johannessen  ... 
doi:10.5194/osd-12-2931-2015 fatcat:e2rh6dpkfbgf3oyy5247dbtsdy

Global Observations of Fine-Scale Ocean Surface Topography With the Surface Water and Ocean Topography (SWOT) Mission

Rosemary Morrow, Lee-Lueng Fu, Fabrice Ardhuin, Mounir Benkiran, Bertrand Chapron, Emmanuel Cosme, Francesco d'Ovidio, J. Thomas Farrar, Sarah T. Gille, Guillaume Lapeyre, Pierre-Yves Le Traon, Ananda Pascual (+6 others)
2019 Frontiers in Marine Science  
Chelton and R. Samelson for careful reading and comments on the manuscript.  ...  FUNDING The authors were mostly funded through the NASA Physical Oceanography Program and the CNES/TOSCA programs for the SWOT and OSTST Science teams.  ...  SAR-interferometry has been demonstrated with SRTM on the Space Shuttle, and with Cryosat-2 SARIN mode for the polar ice caps.  ... 
doi:10.3389/fmars.2019.00232 fatcat:uz545l25rbhw5mmrlwss4p5io4

Arctic sea surface height maps from multi-altimeter combination

Pierre Prandi, Jean-Christophe Poisson, Yannice Faugère, Amandine Guillot, Gérald Dibarboure
2021 Earth System Science Data  
The usual processing approach, involving an empirical retracking algorithm on specular echoes, is applied on CryoSat-2 and Sentinel-3A synthetic aperture radar (SAR) mode echoes.  ...  We use the adaptive retracker to process both open ocean and lead echoes on SARAL/AltiKa, thus removing the need to estimate a bias between open ocean and ice-covered areas.  ...  Radar altimeter data were provided by CNES (SARAL/AltiKA, Sentinel-3A) and ESA (CryoSat-2). Review statement. This paper was edited by Giuseppe M. R. Manzella and reviewed by two anonymous referees.  ... 
doi:10.5194/essd-13-5469-2021 fatcat:maetcwno2vayzatns3wshhpudm

Assessment of CryoSat-2 interferometric and non-interferometric SAR altimetry over ice sheets

Malcolm McMillan, Andrew Shepherd, Alan Muir, Julia Gaudelli, Anna E. Hogg, Robert Cullen
2018 Advances in Space Research  
This analysis demonstrates the value that the interferometer adds to the current CryoSat-2 configuration, and highlights the importance for non-interferometric SAR Level-2 processing of the auxiliary data  ...  Uniquely, CryoSat-2 data can be processed both with and without interferometric information, offering the opportunity to directly compare the SAR and SARIn products generated by the current ground segment  ...  Acknowledgements This work was supported by the UK Natural Environment Research Council Centre for Polar Observation and Modelling (award cpom300001), and a grant from the European Space Agency (CryoSat  ... 
doi:10.1016/j.asr.2017.11.036 fatcat:3wmk2wrxfnfujgoqpvwdokpcca

Community review of Southern Ocean satellite data needs

A. Pope, P. Wagner, R. Johnson, J.D. Shutler, J. Baeseman, L. Newman
2016 Antarctic Science  
This review provides a starting point for scientists to understand more about Southern Ocean processes and their global roles, for funders to understand the desires of the community, for commercial operators  ...  The Southern Ocean is vast but globally connected, and the communities that require satellite-derived data in the region are diverse.  ...  Acknowledgements The authors acknowledge the Climate and Cryosphere Project and the Southern Ocean Observing System.  ... 
doi:10.1017/s0954102016000390 fatcat:rm4dtrapbvam3oukuapfdsoghq

The coastal mean dynamic topography in Norway observed by CryoSat-2 and GOCE

Martina Idžanović, Vegard Ophaug, Ole Baltazar Andersen
2017 Geophysical Research Letters  
during mode switch and ocean signal.  ...  The CryoSat-2 MDTs agree on the ∼3-5 cm level with both tide-gauge geodetic and ocean MDTs along the Norwegian coast.  ...  Acknowledgments We acknowledge the open data policy of ESA, MET Norway, PSMSL, and RADS. We would like to thank K. Breili at the Norwegian Mapping  ... 
doi:10.1002/2017gl073777 fatcat:56w2prnzajhwne2dh3dkbfmdp4

The European Space Agency's Earth Explorer Mission CryoSat: measuring variability in the cryosphere

Mark R. Drinkwater, Richard Francis, Guy Ratier, Duncan J. Wingham
2004 Annals of Glaciology  
Preparatory plans for calibration and validation of CryoSat data are described.  ...  It is a dedicated cryospheric mission equipped with a Ku-band SIRAL (SAR/Interferometric Radar ALtimeter), whose primary objectives are to measure the variability and trends in the mass of the Arctic sea-ice  ...  The D2P radar was deployed on the P3, and data acquired and pre-processed, under European Space Agency contract ESTEC 16306/02/NL/SF.  ... 
doi:10.3189/172756404781814663 fatcat:j7mu6xp3vnhwdd22xwxxtuymlq
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