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Weekly gridded Aquarius L-band radiometer/scatterometer observations and salinity retrievals over the polar regions – Part 1: Product description
2014
The Cryosphere
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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). ...
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. ...
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
Weekly-gridded Aquarius L-band radiometer/scatterometer observations and salinity retrievals over the polar regions: applications for cryospheric studies
2013
The Cryosphere Discussions
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Aquarius data at latitudes higher than 50 • were averaged and gridded into three weekly products of Brightness Temperature (TB), Normalized Radar Cross Section (NRCS), and Sea Surface Salinity (SSS). ...
To allow for an efficient use of the Aquarius data over the polar regions, and to move 5 forward our understanding of the L-band observations of ice sheet, sea ice, permafrost, and polar oceans, we present ...
We also acknowledge Annette Decharon and Lisa Taylor (University of Maine, School of Marine Sci-5 ences) for hosting the visualization of the weekly-gridded products of brightness temperature and sea surface ...
doi:10.5194/tcd-7-5921-2013
fatcat:ahn2mspsurdy7nqjycltakqlya
Aquarius: The instrument and initial results
2012
2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)
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In order to map the ocean salinity field, Aquarius includes several special features such as the inclusion of a scatterometer to provide a roughness correction, measurement of the third Stokes parameter ...
to correct for Faraday rotation, and fast sampling to mitigate the effects of RFI. ...
Among them are: The inclusion of a scatterometer viewing the same spot as the radiometer to provide a correction for roughness; A polarimetric radiometer channel (third Stokes parameter) to help correct ...
doi:10.1109/microrad.2012.6185226
fatcat:rmccfrhvlvdutjia7gbgjfsfh4
Weekly gridded Aquarius L-band radiometer/scatterometer observations and salinity retrievals over the polar regions – Part 2: Initial product analysis
2014
The Cryosphere
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For example, we show that over the Greenland Ice Sheet, the unusual 2012 melt event lead to an L-band brightness temperature (TB) sustained decrease of ~5 K at horizontal polarization. ...
Aquarius sea surface salinity (SSS) retrievals in the polar waters are also presented. ...
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-8-915-2014
fatcat:xmkugmsn6zgnvpxa2ca6yuzj54
Aquarius and Remote Sensing of Sea Surface Salinity from Space
2010
Proceedings of the IEEE
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Aquarius is an L-band radiometer and scatterometer instrument combination designed to map the salinity field at the surface of the ocean from space. ...
Aquarius is the primary instrument on the Aquarius/SAC-D mission, a partnership between the USA (NASA) and Argentina (CONAE). Launch is scheduled for May, 2010. ...
An important issue in the real world is surface roughness (waves). Compared to a flat surface, roughness causes an increase in brightness temperature. ...
doi:10.1109/jproc.2010.2040550
fatcat:qzjow5jqaney5eqvolh3ambfya
AQUARIUS: a passive/active microwave sensor to monitor sea surface salinity globally from space
2004
Microwave Remote Sensing of the Atmosphere and Environment IV
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Sea surface salinity can be measured remotely by satellite and a three year mission for this purpose called AquariudSAC-D has recently been selected by NASA's Earth System Science Pathfinder (ESSP) program ...
Salinity is important for understanding ocean dynamics, energy exchange with the atmosphere and the global water cycle. Existing data is limited and much of the ocean has never even been sampled. ...
The primary instrument is an L-band radiometer, but the instrument package includes an active channel (scatterometer) to assist with the correction for surface roughness. ...
doi:10.1117/12.579424
fatcat:g5dvk4uurjdv5ppunpz2layboq
Upper ocean salinity stratification and rain freshening in the tropics observed from Aquarius
2014
2014 IEEE Geoscience and Remote Sensing Symposium
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We separate the rain freshening effects from local biases in the Aquarius salinity that correlate with sea surface temperature and are likely related to uncertainties in the geophysical model that is used ...
We present validation results for the Aquarius Version 3.0 ocean surface salinity product that has been released in June 2014. ...
BACKGROUND The Aquarius L-band radiometer/scatterometer system is designed to provide monthly salinity maps at 150 km spatial scale at an accuracy of 0.2 psu [1] . ...
doi:10.1109/igarss.2014.6947647
dblp:conf/igarss/MeissnerWSH14
fatcat:ytvojipazrgxfmp5szlf7pph24
The Aquarius/SAC-D Mission: Designed to Meet the Salinity Remote-Sensing Challenge
2008
Oceanography
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Sea-surface salinity (SSS) and sea-surface temperature (SST) determine sea-surface density, which controls the formation of water masses and regulates three-dimensional ocean circulation. ...
observe surface temperatures, winds, sea level, and ocean color. ...
The Aquarius salinity Measurement Salinity remote sensing is accomplished by measuring microwave emission from the sea surface in terms of a parameter called brightness temperature, in Kelvins (K), and ...
doi:10.5670/oceanog.2008.68
fatcat:dpysti3tn5ctloh3zv5d5xl37e
Global Soil Moisture From the Aquarius/SAC-D Satellite: Description and Initial Assessment
2015
IEEE Geoscience and Remote Sensing Letters
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Aquarius satellite observations over land offer a new resource for measuring soil moisture from space. ...
Aquarius radiometer observations from three beams (after bias/gain modification) along with the National Centers for Environmental Prediction model forecast surface temperatures were then used to retrieve ...
Feldman, and the Aquarius Data Processing System Group for the support in the implementation of the Aquarius soil moisture algorithm. ...
doi:10.1109/lgrs.2014.2364151
fatcat:tbbd7vvb7zhb7pvd2cj4atom2y
The emission and scattering of L-band microwave radiation from rough ocean surfaces and wind speed measurements from the Aquarius sensor
2014
Journal of Geophysical Research - Oceans
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The analysis is based on radiometer brightness temperature and scatterometer backscatter observations both taken on board Aquarius. ...
The L-band GMF together with the combined passive/active L-band wind speeds are utilized in the Aquarius SSS retrieval algorithm for the surface roughness correction. ...
We would like to thank the members of the Aquarius cal/val and science teams, in particular Gary Lagerloef, David LeVine, Simon Yueh, Yi Chao, Tong Lee, Shannon Brown, Emmanuel Dinnat, Alex Fore, Hsun-Ying ...
doi:10.1002/2014jc009837
fatcat:cbc56kg2lnfpfkhylao4llgr3m
The Salinity Retrieval Algorithms for the NASA Aquarius Version 5 and SMAP Version 3 Releases
2018
Remote Sensing
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When stratified as function of sea surface temperature or sea surface wind speed, the difference between Aquarius Version 5 and ARGO is within ±0.1 psu. ...
In particular, we will discuss the corrections for wind induced surface roughness, atmospheric oxygen absorption, reflected galactic radiation and side-lobe intrusion from land surfaces. ...
Acknowledgments: We would like to thank the members of the Aquarius and SMAP Cal/Val and science teams for providing valuable input and suggestions over the course of this work. ...
doi:10.3390/rs10071121
fatcat:2noz2avppnhjtpbsgjdktodleq
Aquarius Mission Technical Overview
2006
2006 IEEE International Symposium on Geoscience and Remote Sensing
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Aquarius is an L-band microwave instrument being developed to map the surface salinity field of the oceans from space. ...
It is part of the AquariudSAC-D mission, a partnership between the USA (NASA) and Argentina (CONAE) with launch scheduled for early in 2009. ...
It is for this reason, to correct for the contribution of roughness, that Aquarius includes a scatterometer. ...
doi:10.1109/igarss.2006.434
dblp:conf/igarss/VineLYPDW06
fatcat:qdb6tuydxjgj3hxmm6hy2c6lay
Aquarius: An Instrument to Monitor Sea Surface Salinity From Space
2007
IEEE Transactions on Geoscience and Remote Sensing
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Aquarius is a combined passive/active L-band microwave instrument that is being developed to map the salinity field at the surface of the ocean from space. ...
Aquarius is part of the Aquarius/Satelite de Aplicaciones Cientificas-D mission, which is a partnership between the U.S. ...
ACKNOWLEDGMENT The authors would like to thank the Aquarius team members who have contributed to the overall mission design and preparation of technical information. ...
doi:10.1109/tgrs.2007.898092
fatcat:zlvzm6k47rexhdb2svrtkfk3ou
SMOS salinity in the subtropical North Atlantic salinity maximum: 1. Comparison with Aquarius and in situ salinity
2014
Journal of Geophysical Research - Oceans
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Sea surface salinity (SSS) measured from space by the Soil Moisture and Ocean Salinity (SMOS) mission is validated in the subtropical North Atlantic Ocean. 39 transects of ships of opportunity equipped ...
derived from satellite SSS and In Situ Analysis System (ISAS) SSS differences averaged over the studied region. ...
Acknowledgments This study is supported by the ESA SMOS1SOS (''OSMOSIX'') project. It ...
doi:10.1002/2013jc009610
fatcat:ixq4i7pxc5hv3ou5fz24gy4b5m
Aquarius Wind Speed Products: Algorithms and Validation
2014
IEEE Transactions on Geoscience and Remote Sensing
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This paper introduces and validates the Aquarius scatterometer-only wind speed algorithm and the combined active passive (CAP) wind speed products. ...
We find the performance of the Aquarius scatterometer-only wind speed is better than 1.00 ms −1 , with best performance for low wind speeds and increasing noise levels as the wind speed increases. ...
In March 2008 he joined the Radar Science and Engineering section at the Jet Propulsion Laboratory (JPL), Pasadena, CA, USA. ...
doi:10.1109/tgrs.2013.2267616
fatcat:gdxfssm2znevfj2lvluh6cz3fy
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