ENSO indices from sea surface salinity observed by Aquarius and Argo
نویسندگان
چکیده
منابع مشابه
ENSO indices from sea surface salinity observed by Aquarius and Argo
Analysis of the first 26 months of data from the Aquarius satellite confirms the existence of a sharp sea surface salinity (SSS) front along the equator in the western equatorial Pacific. Following several earlier studies, we use the longitudinal location of the 34.8-psu isohaline as an index, termed Niño-S34.8, to measure the zonal displacement of the SSS front and consequently the eastern edg...
متن کاملSea Surface Salinity And Barrier Layer Variability In The Equatorial Pacific As Seen From Aquarius And Argo
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The Impact of Dielectric Constant Model and Surface Reference on Differences between Smos and Aquarius Sea Surface Salinity
Two ongoing space missions share the scientific objective of mapping the global Sea Surface Salinity (SSS), yet their observations show significant discrepancies. ESA's Soil Moisture and Ocean Salinity (SMOS) and NASA's Aquarius use L-band (1.4 GHz) radiometers to measure emission from the sea surface and retrieve SSS. Significant differences in SSS retrieved by both sensors are observed, with ...
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In May 1999, the European Space Agency (ESA) selected SMOS as an Earth Explorer Opportunity mission. One of its goals is the generation of global Sea Surface Salinity (SSS) maps. The sensor embarked is an L-band interferometric radiometer with full-polarimetric capability called MIRAS. The retrieval of SSS from microwave measurements is based on the fact that the brightness temperature (TB) of ...
متن کاملModelling Sea Surface Salinity from MODIS Satellite Data
In this study, we investigate the relative ability of least square algorithm to retrieve sea surface salinity (SSS) from MODIS satellite data. We also examine with comprehensive comparison of the root mean square of bias the difference between second polynomial order algorithm and least square algorithm. Both the least squares algorithm and second polynomial order algorithm are used to retrieve...
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ژورنال
عنوان ژورنال: Journal of Oceanography
سال: 2014
ISSN: 0916-8370,1573-868X
DOI: 10.1007/s10872-014-0238-4