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Science: Scientific Investigations
Science Results From the Aquarius and SMOS Ocean Salinity Missions I
2012 Fall AGU Meeting | San Fransisco, CA | 3-7 December, 2012
Highlights of the First 15 Months of Aquarius Salinity Measurements
Gary S. Lagerloef; Hsun-Ying Kao; Frank J. Wentz; David M. Le Vine; Simon H. Yueh; Gene C. Feldman
Presented by Jacqueline Boutin
The authors identify several phenomena seen in Aquarius data (e.g., low salinity anomalies associated with inter-tropical convergence zones, major river outflows, seasonal low salinity anomaly in the Panama bight, salinity variations related to precipitation and surface currents, variations related to the 2012 El Nino, etc.) and conclude with a brief summary of the Aquarius data products and validation.
SMOS and Aquarius Brightness Temperatures Inter Comparison
Francois Cabot; Yann H. Kerr; Eric Anterrieu; Gary S. Lagerloef
The authors inter compare measured brightness temperatures obtained from the SMOS and Aquarius missions and draw conclusions with regard to the accuracy and stability of both missions.
The Aquarius Level 2 Algorithm
Thomas Meissner; Frank J. Wentz; Kyle A. Hilburn; Gary S. Lagerloef; David M. Le Vine
This presentation outlines the current state of the Aquarius Level processing algorithm, which transforms radiometer counts ultimately into sea surface salinity.
The Ups and Downs of Measuring Sea Surface Salinity from Space
Chris J. Banks; Christine P. Gommenginger; Meric A. Srokosz; Helen M. Snaith
The authors report on-going investigations into the validation of SMOS and Aquarius ‘Level 3’ measurements of sea surface salinity.
Aquarius Wind and SSS Retrieved Using the Combined Active-Passive Algorithm Under All Weather Conditions
Simon H. Yueh; Wenqing Tang; Alexander Fore; Adam P. Freedman; Gregory Neumann; Akiko Hayashi; Gary S. Lagerloef
The authors describe the characteristics and error estimates of the ocean surface wind vector and sea surface salinity retrieved using the Combined Active-Passive (CAP) algorithm.
Improved Sea Surface Salinity Retrievals Using Ancillary Data for Aquarius Ocean Roughness Correction
Linwood Jones; Yazan Hejazin; Monica Rabollii
This presentation deals with a method of improving AQ sea surface salinity measurements by making an ocean roughness correction to brightness temperature.
What is the Expected Impact of SMOS/Aquarius SSS in the Mercator Ocean System?
Benoit Tranchant; Eric Greiner; Olivier Legalloudec; Jean-Michel Lellouche; Nicolas Ferry; Stéphanie Guinehut
Mercator Ocean investigates the best way to deal with new sea surface salinity data from space (SMOS and Aquarius) by taking into account different errors associated with different scales.
Derivation Of An Experimental Satellite-based T-S Diagram
Jordi Font; Roberto Sabia; Joaquim Ballabrera; Gary S. Lagerloef; Eric J. Bayler; Marco Talone; Yi Chao; Craig J. Donlon; Diego Fernandez-Prieto
A preliminary attempt of deriving a purely satellite-based Temperature-Salinity (T-S) diagram is presented, with the overall aim of assessing to what extent is possible, and in which geographical areas, to identify and trace water masses by satellite using recent SMOS and Aquarius satellite sea surface salinity products in conjunction with spaceborne SST data.
SMOS Salinity: A New View of the Ocean Surface (Invited)
Jacqueline Boutin; Nicolas Martin; Gilles P. Reverdin; Xiaobin Yin
In this presentation, the authors assess the accuracy of the SMOS sea surface salinity measurements recently reprocessed by ESA (version 5), and illustrate the additional information these new satellite products bring, with respect to in situ measurements, for ocean surface processes studies.
SPURS Overview: Salinity Processes Upper Ocean Regional Study First Results (Invited)
Raymond W. Schmitt
SPURS seeks answers to basic questions about how the salinity maximum of the North Atlantic is maintained. Raymond Schmitt, Principal Investigator for SPURS, presents results from the first cruise (September-October 2012).
Near-surface Observations of Temperature and Salinity from Profiling Floats: The Diurnal Cycle, Precipitation, and Mixing
Jessica E. Anderson; Stephen Riser
Observations of near-surface temperature and salinity obtained from Argo-type profiling floats enhanced with an auxiliary Surface Temperature and Salinity (STS) CTD are presented.
NOAA In Situ – Satellite Blended Analysis of Surface Salinity (BASS): Prototype Algorithm and Applications
Pingping Xie; Tim Boyer; Eric J. Bayler; Yan Xue; Deirdre A. Byrne; James R. Reagan; Ricardo A. Locarnini; Arun Kumar
A prototype analysis of monthly sea surface salinity has been constructed on a 1-degree lat/lon grid over the global ocean by blending information from in situ measurements and satellite retrievals.
Tropical Cyclone Interaction with the Amazon-Orinoco River Plume: New Insights from SMOS and Aquarius Missions
Reul Nicolas; Quilfen Yves; Tenerelli Joe; Semyon A. Grodsky; Chapron Bertrand
The authors provide an overview of observed large-scale salinity signatures after the passage of several hurricanes in 2010 and 2011, along with an historical perspective on the potential cooling inhibition impact of a neutrally-buoyant plume in the tropical Atlantic and its potential feedback for hurricane intensification.
Mixed Layer Impact of Hurricane Katia Passing Over the Amazon/Orinoco Plume as Viewed in Remotely Sensed Salinity Observations (Invited)
James Carton; Semyon A. Grodsky; Reul Nicolas; Gary S. Lagerloef; Gilles P. Reverdin; Bertrand Chapron; Quilfen Yves; Vladimir N. Kudryavtsev; Hsun-Ying Kao
New remotely sensed sea surface salinity observations help elucidate the ocean's response to hurricane Katia, which crossed the Amazon/Orinoco plume in early fall 2011, leaving a 1.5 psu high-salinity wake due to mixing of the shallow barrier layer.
Aquarius Reveals Salinity Structure of Tropical Instability Waves
Tong Lee; Gary S. Lagerloef; Michelle M. Gierach; Hsun-Ying Kao; Simon H. Yueh; Kathleen B. Dohan
Sea surface salinity measurements from the Aquarius/SAC-D during September-December 2011 provide the first satellite observations of the salinity structure of tropical instability waves (TIWs) in the Pacific, demonstrating the important value of Aquarius in studying TIWs.
ENSO Signature in the SMOS Sea Surface Salinity Maps
Joaquim Ballabrera; Marta Umbert; Nina Hoareau; Antonio Turiel; Jordi Font
Results to date from SMOS, which was launched on November 2, 2009, becoming the first satellite mission addressing the challenge of measuring sea surface salinity from space with the help of MIRAS (Microwave Imaging Radiometer with Aperture Synthesis), a novel two-dimensional interferometer operating at L-band (1.4 GHz).
Abstracts | Original Videos on Demand: OS11H | Original Videos on Demand: OS12C
All Rights Reserved. American Geophysical Union, 2012.
|algorithm: A precise rule (or set of rules) specifying how to solve some problem; The term is often used in the context of computer software, describing the program logic used to perform a specific function. validation: Act of validating or authenticating; Finding or testing the truth of something.|
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