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Title: Variability of estimated dielectric constant obtained using theoretical models over Pacific Ocean in open sea for sea surface salinity varying from lower to higher values
Authors: Calla, O P N
Purohit, Uttra
Asopa, Pooja
Kalla, Abhishek
Dadhich, Harendra
Keywords: Sea surface salinity;Dielectric constant;Ocean salinity;Soil moisture
Issue Date: Jun-2012
Publisher: NISCAIR-CSIR, India
PACS No.: 78.20.Ci; 92.05.Hj
Abstract: In this paper, the values of dielectric constant (ε) obtained by Blanch & Aguaca (B&A) as well as Klein & Swift (K&S) models using variable salinity in open seas in Pacific Ocean have been studied. The values of dielectric constant derived by B&A and K&S are compared with different salinities ranging 20-50 psu. The analysis has been done on eight days: three days in February and five days in March 2011. Each of these three days of February pair with the other three days of March before Tsunami and remaining two days of March taken after Tsunami pair with each other, in such a way that each pair have nearly same pass over Pacific Ocean and thus, in this way each of these four sets form the four different passes over Pacific Ocean near Japan. This analysis was initially done with Tsunami point of view over Japan which is under process but during this analysis, variability of ε has been seen using two models (B&A and K&S) for variable salinity and the analysis has been presented. This analysis shows that within certain acceptable limits both the models of K&S and B&A are useful for estimating dielectric constant of sea water and understanding the variability of estimated ε with sea surface salinities. The analysis also shows that the dielectric constant goes lower to higher value for B&A and higher to lower values for K&S with increase in the values of salinity.
Page(s): 367-371
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.41(3) [June 2012]

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