Patos Lagoon Outflow Within the Rio de la Plata Plume Using an Airborne Salinity Mapper: Observing an Embedded Plume

Abstract

Using brightness temperature Tb measurements from L-band airborne microwave radiometers, with independent sea surface temperature (SST) observations, sea surface salinity (SSS) can be remotely determine with errors of about I psa in temperate regions. Nonlinearities in the relationship between Tb, SSS, and SST produce variations in the sensitivity of salinity S to variations in Tb and SST. Despite significant efforts devoted to SSS remote sensing retrieval algorithms, little consideration has been given to deriving density D from remotely sensed SSS and SST. Density is related to S and T through the equation of state. It affects the ocean's static stability and its dynamical response to forcings. By chaining together two empirical relationships (flat-sea emissivity and equation of state) to form an inversion algorithm for sea surface density (SSD) in terms of Tb and SST, we develops simple L-band SSD retrieval algorithm.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2008
Accession Number
ADA484793

Entities

People

  • Alberto Piola
  • Carlos J. Martinez
  • Derek Burrage
  • Joel Wesson
  • Osmar Moller Jr.
  • Tabare Perez

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Cyber
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Birds
  • Climate Change
  • Data Acquisition
  • Frequency
  • L Band
  • Measurement
  • Observation
  • Ocean Currents
  • Oceanography
  • Oceans
  • Physical Oceanography
  • Pressure Gradients
  • Regions
  • Remote Sensing
  • Sea Surface Temperature
  • Sea Water
  • Surface Temperature

Fields of Study

  • Environmental science

Readers

  • Atmospheric Remote Sensing.
  • Oceanography.