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Absolute calibration of SARAL/AltiKa in Kavaratti during its initial calibration-validation phase

DRS at CSIR-National Institute of Oceanography

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Title Absolute calibration of SARAL/AltiKa in Kavaratti during its initial calibration-validation phase
 
Creator Babu, K.N.
Shukla, A.K.
Suchandra, A.B.
ArunKumar, S.V.V.
Bonnefond, P.
Testut, L.
Mehra, P.
Laurain, O.
 
Subject OCEANOGRAPHY AND LIMNOLOGY
OCEANOGRAPHY AND LIMNOLOGY
METEOROLOGY AND CLIMATOLOGY
OCEANOGRAPHIC SUPPORT SERVICES
 
Description The Kavaratti calibration-validation site in India at Lakshadweep Sea has been improved to carry out absolute calibration of SARAL/AltiKa altimeter. This site is augmented with a down-looking radar gauge and a permanent GPS receiver. The Kavaratti Island is located near a repeating ground track of SARAL/AltiKa and »12 km away from the point of closest measurement of Jason-2, SARAL/AltiKa crossover point. Additionally, the altimeter and radiometer footprints do not experience any land contamination. This article aims at presenting the initial calibration-validation results over cycles 001-011 of AltiKa. The absolute sea surface height bias has been found to be ¡48 mm at Kavaratti calibration site. In this preliminary study the effect of environmental variables such as winds and pressure are not considered in calculations.
 
Date 2016-01-07T03:43:58Z
2016-01-07T03:43:58Z
2015
 
Type Journal Article
 
Identifier Marine Geodesy, vol.38(S1); 2015; 156-170
http://drs.nio.org/drs/handle/2264/4873
 
Language en
 
Rights The final and definitive form of the preprint has been published in the "Marine Geodesy" © 2015 Taylor & Francis; "Marine Geodesy" is available online at http://www.tandfonline.com with open URL of article : http://dx.doi.org/10.1080/01490419.2015.1045639. The term & condition associated with this preprint is at http://www.tandfonline.com/page/terms-and-conditions
 
Publisher Taylor and Francis