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Expected Performances of the Copernicus Imaging Microwave Radiometer (CIMR) for an All-Weather and High Spatial Resolution Estimation of Ocean and Sea Ice Parameters

Lise Kilic, Catherine Prigent, Filipe Aires, Jacqueline Boutin, Georg Heygster, Rasmus T. Tonboe, Hervé Roquet, Carlos Jimenez, Craig Donlon
2018 Journal of Geophysical Research - Oceans  
Acknowledgments The authors express their thanks to the MICROWAT team for all the  ...  For the retrieval error StD, the coastal or sea ice margin effects are also included, with an estimation of the bias errors related to the proportion of land and sea ice in the considered pixel, taking  ...  SST = sea surface temperature; SIC = sea ice concentration; SSS = sea surface salinity; StD = standard deviation; CIMR = Copernicus Imaging Microwave Radiometer; AMSR2 = Advanced Microwave Scanning Radiometer  ... 
doi:10.1029/2018jc014408 fatcat:r6mzsm5w4vgthngufyxhgtd3d4

Ocean and Sea Ice Retrievals from an End‐to‐End Simulation of the Copernicus Imaging Microwave Radiometer (CIMR) 1.4 to 36.5 GHz Measurements

Carlos Jiménez, Joseph Tenerelli, Catherine Prigent, Lise Kilic, Thomas Lavergne, Sotirios Skarpalezos, Jacob L. Hoeyer, Nicolas Reul, Craig Donlon
2021 Journal of Geophysical Research - Oceans  
CIMR is designed to monitor the rapid Earth system changes taking place in the Arctic in response to the Integrated European Policy for the Arctic.  ...  The Copernicus Imaging Microwave Radiometer (CIMR) is a satellite system developed as part of the European Union Copernicus program expansion activities.  ...  Acknowledgments This work has been supported by the ESA CIMR-APE study (Contract number 400012555/18/NL/AI). We thank the CIMR Mission Advisory Group for productive discussions.  ... 
doi:10.1029/2021jc017610 fatcat:to4xfvud5bbjze2cawpb57llsm

Sea surface salinity estimates from spaceborne L-band radiometers: An overview of the first decade of observation (2010–2019)

N. Reul, S.A. Grodsky, M. Arias, J. Boutin, R. Catany, B. Chapron, F. D'Amico, E. Dinnat, C. Donlon, A. Fore, S. Fournier, S. Guimbard (+18 others)
2020 Remote Sensing of Environment  
The EU authors acknowledge support of ESA in the frame of the SMOS ESL Level 2 phase 3 contract (https://smos.argans.co.uk/), the N. Reul, et al. Remote Sensing of Environment 242 (2020) 111769  ...  Acknowledgements We would like to thank the contributions from three anonymous reviewers for comments and detailed editing of our draft which definitively helped to improve the paper.  ...  For all L-band radiometers, SSS retrievals algorithms are therefore based on: • an empirical sea-water dielectric constant model at 1.4 GHz, • a surface roughness correction model, • a Radiative Transfer  ... 
doi:10.1016/j.rse.2020.111769 fatcat:4oa3ceryd5felg7y7ytbjtrrpq

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  
This paper provides an overview of the Dragon 4 project dealing with operational monitoring of sea ice and sea surface salinity (SSS) and new product developments for altimetry data.  ...  To improve sea ice thickness retrieval, a new method was developed to match the Cryosat-2 radar waveform.  ...  For the retrieval of sea ice drift from SAR image pairs, Griebel and Dierking [35] studied the effect of uncertainties in an automatically retrieved sea ice drift field, and the influence of the type  ... 
doi:10.3390/rs13142847 fatcat:jsh2gqsdkzhrhhetjpsw6f3aqi

A Consistent Combination of Brightness Temperatures from SMOS and SMAP over Polar Oceans for Sea Ice Applications

Amelie Schmitt, Lars Kaleschke
2018 Remote Sensing  
Here, we explore the possibility of combining SMOS and SMAP TBs for sea ice thickness retrieval. First, we compare daily TBs over polar ocean and sea ice regions.  ...  This bias can be adjusted using a linear fit resulting in a very good agreement of the retrieved sea ice thicknesses.  ...  Acknowledgments: This work was supported by the project SPICES (space-borne observations for detecting and forecasting sea ice cover extremes) funded by the European Union's Horizon 2020 Programme (grant  ... 
doi:10.3390/rs10040553 fatcat:m5fx5ykc2zacdbkbo4ql3w7w2m

Remote Sensing of Sea Surface Salinity: Comparison of Satellite and In Situ Observations and Impact of Retrieval Parameters

Emmanuel Dinnat, David Le Vine, Jacqueline Boutin, Thomas Meissner, Gary Lagerloef
2019 Remote Sensing  
We also identify the impact of the corrections for atmospheric effects recently modified in the Aquarius SSS retrievals.  ...  There are notable differences in the instrumental approaches, as well as in the retrieval algorithms.  ...  The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.  ... 
doi:10.3390/rs11070750 fatcat:qxuljm3xcjhmnfwvlay6zmjej4

Weekly gridded Aquarius L-band radiometer/scatterometer observations and salinity retrievals over the polar regions – Part 1: Product description

L. Brucker, E. P. Dinnat, L. S. Koenig
2014 The Cryosphere  
The largest 3 dB footprint dimensions are 97 km × 156 km and 74 km × 122 km (along × across track) for the radiometers and scatterometer, respectively.  ...  Aquarius data at latitudes higher than 50° are averaged and gridded into weekly products of brightness temperature (TB), normalized radar cross section (NRCS), and sea surface salinity (SSS).  ...  Taylor (University of Maine, School of Marine Sciences) for hosting the visualization of the weekly gridded products of brightness temperature and sea surface salinity on the Aquarius Education & Public  ... 
doi:10.5194/tc-8-905-2014 fatcat:vjckdkyvyzhyvdnauepxwikyzi

Satellite Salinity Observing System: Recent Discoveries and the Way Forward

Nadya Vinogradova, Tong Lee, Jacqueline Boutin, Kyla Drushka, Severine Fournier, Roberto Sabia, Detlef Stammer, Eric Bayler, Nicolas Reul, Arnold Gordon, Oleg Melnichenko, Laifang Li (+7 others)
2019 Frontiers in Marine Science  
Advances in L-band microwave satellite radiometry in the past decade, pioneered by ESA's SMOS and NASA's Aquarius and SMAP missions, have demonstrated an unprecedented capability to observe global sea  ...  surface salinity (SSS) from space.  ...  The unprecedented changes in sea ice melt, precipitation, and river runoff in the Arctic Ocean impact both geophysical and biochemical systems, including freshwater storage and export, ocean-ice-atmospheric  ... 
doi:10.3389/fmars.2019.00243 fatcat:zomirl3h4vbpjjfamay3ipwqcy

First SMOS Sea Surface Salinity dedicated products over the Baltic Sea

Verónica González-Gambau, Estrella Olmedo, Antonio Turiel, Cristina González-Haro, Aina García-Espriu, Justino Martínez, Pekka Alenius, Laura Tuomi, Rafael Catany, Manuel Arias, Carolina Gabarró, Nina Hoareau (+3 others)
2022 Earth System Science Data  
This paper presents the first Soil Moisture and Ocean Salinity (SMOS) Sea Surface Salinity (SSS) dedicated products over the Baltic Sea.  ...  The SSS retrieval from L-band brightness temperature (TB) measurements over this basin is really challenging due to important technical issues, such as the land–sea and icesea contamination, the high  ...  The authors would like to thank Andreas Lehman (Chair of the Baltic Earth Working Group on Salinity Dynamics, from GEOMAR Helmholtz-Zentrum für Ozeanforschung) for his valuable help on the definition of  ... 
doi:10.5194/essd-14-2343-2022 fatcat:cp3y3x54rbbarf7fjds6ljyxvi

The Multifrequency Future for Remote Sensing of Sea Surface Salinity from Space

David M. Le Vine, Emmanuel P. Dinnat
2020 Remote Sensing  
For example, adding higher frequencies to improve the correction for sea surface temperature and lower frequencies to improve the sensitivity to salinity in cold water.  ...  Passive microwave remote sensing of sea surface salinity from space is done with measurements in the 27 MHz wide spectral window at 1.413 GHz (L-band) which is protected for passive use only.  ...  An example is SST, which in current algorithms to retrieve salinity is obtained as ancillary data from other sources [17] .  ... 
doi:10.3390/rs12091381 fatcat:wpi4vsx3ebd57g5tejploro3ae

On the retrieval of sea ice thickness and snow depth using concurrent laser altimetry and L-band remote sensing data

Lu Zhou, Shiming Xu, Jiping Liu, Bin Wang
2018 The Cryosphere  
For example, climatological snow depth data or as derived from reanalyses contain large or unconstrained uncertainty, which result in large uncertainty in the derived sea ice thickness and volume.  ...  In this study, we explore the potential of combined retrieval of both sea ice thickness and snow depth using the concurrent active altimetry and passive microwave remote sensing of the sea ice cover.  ...  Additionally, the authors are grateful to Sascha Willmes and Guenther Heinemann for the provision of Arctic sea ice lead map. Edited by: Julienne Stroeve Reviewed by: four anonymous referees  ... 
doi:10.5194/tc-12-993-2018 fatcat:of2gq43jzjazbo5dh4b6p3km4q

Towards an enhanced SMOS Level 2 Ocean Salinity product

E. Olmedo, V. Gonzalez-Gambau, A. Turiel, S. Guimbard, C. Gonzalez-Haro, J. Martinez, Carolina Gabarro, M. Portabella, M. Arias, Roberto Sabia, Roger Oliva, I. Corbella
2020 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
The quality of the Soil Moisture and Ocean Salinity (SMOS) Sea Surface Salinity (SSS) measurements has been noticeably improved in the last years.  ...  In this work, we apply Nodal Sampling to the SMOS brightness temperatures (TBs) which effectively reduces the standard deviation of the TB error; then, we use debiased non-Bayesian retrieval for the mitigation  ...  His current work is centered in SMOS L1 corrections, in the research concerning sea-ice products development and in the improvement of the Arctic sea surface salinity retrieval. Dr.  ... 
doi:10.1109/jstars.2020.3034432 fatcat:ncjgj2oldfdszi7hbi4c5psnfu

Spaceborne GNSS Reflectometry

Kegen Yu, Shuai Han, Jinwei Bu, Yuhang An, Zhewen Zhou, Changyang Wang, Sajad Tabibi, Joon Wayn Cheong
2022 Remote Sensing  
This article provides an overview of these studies with a focus on the basic methods and techniques in the retrieval of a number of geophysical parameters and the detection of several objects.  ...  Accordingly, the data have been widely used to carry out a variety of studies for a range of useful applications, and significant research outcomes have been generated.  ...  Acknowledgments: We are very grateful for the anonymous reviewers' comments, which have greatly improved the quality and content of the manuscript.  ... 
doi:10.3390/rs14071605 fatcat:k7kh5pb4tje3rhved3trrofabu

Remote Sensing of Environmental Changes in Cold Regions: Methods, Achievements and Challenges

Jinyang Du, Jennifer D. Watts, Lingmei Jiang, Hui Lu, Xiao Cheng, Claude Duguay, Mary Farina, Yubao Qiu, Youngwook Kim, John S. Kimball, Paolo Tarolli
2019 Remote Sensing  
selected key variables related to ice, snow, permafrost, water bodies, and vegetation; (b) highlighting recent environmental nonstationarity occurring in the Arctic, Tibetan Plateau, and Antarctica as  ...  This paper provides an overview of recent achievements, challenges, and opportunities for land remote sensing of cold regions by (a) summarizing the physical principles and methods in remote sensing of  ...  SMOS (Soil Moisture and Ocean Salinity) [46] , SMAP [163, 164] , and ASCAT [165] .  ... 
doi:10.3390/rs11161952 fatcat:63wghdyherdo3cyxasqpcbrz3m

Half a century of satellite remote sensing of sea-surface temperature

P.J. Minnett, A. Alvera-Azcárate, T.M. Chin, G.K. Corlett, C.L. Gentemann, I. Karagali, X. Li, A. Marsouin, S. Marullo, E. Maturi, R. Santoleri, S. Saux Picart (+2 others)
2019 Remote Sensing of Environment  
Corrections for the effects of the atmosphere to make quantitative estimates of the SST became possible when radiometers with multiple infrared channels were deployed in 1979.  ...  Sea-surface temperature (SST) was one of the first ocean variables to be studied from earth observation satellites.  ...  Merchant for providing a preprint of the paper (Merchant et al., 2019) to support the description (in Section 5.1.2) of the generation of the AVHRR time series of consistent SSTs.  ... 
doi:10.1016/j.rse.2019.111366 fatcat:6bkbqmedx5bjtmvw2kkjnq3xnm
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