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Are the older ARGO-Floats more vulnerable to Fouling and Associated Salinity drift compared to that of later deployments?

DRS at CSIR-National Institute of Oceanography

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Title Are the older ARGO-Floats more vulnerable to Fouling and Associated Salinity drift compared to that of later deployments?
 
Creator Pankajakshan, T.
Youn, Y.H.
Lee, H.
 
Description Continued existence of ARGO floats for years together (4 year) make the conductivity cell more vulnerable to fouling and associated drift in salinity measurements In this paper, the authors address this issue by making use of floats deployed in different years Floats deployed in the East/Japan Sea and in the Indian Ocean are examined to find out float-to-float match-ups in such a way that an older float pops up simultaneously with a newer deployment (with tolerable space-time difference) A time difference of less than five days and space difference of less than 100 Km are considered for the match-up data sets For analysis of the salinity drift, observations of the floats from deepest water masses have been used From the float match-ups from the East/Japan Sea and the Indian Ocean, it is found that there is a systematic drift in the older float compared to later deployments All drift results, consistently show negative bias indicating the typical nature of drift from fouled sensors However, the drift is much less than the 0.01 PSU, the specified accuracy of ARGO program.
 
Date 2008-06-06T10:14:10Z
2017-09-30T03:07:57Z
2008-06-06T10:14:10Z
2017-09-30T03:07:57Z
2004
 
Type Conference Article
 
Identifier Proceedings of the National Symposium METOC - 2004 on Emerging Trends in the Fields of Oceanography and Meteorology, Kochi, India; 5-6 Feb 2004.; 2004; 145-155
http://drs.nio.org/drs/handle/2264/7561
 
Language en
 
Relation National Symposium METOC - 2004 on Emerging Trends in the Fields of Oceanography and Meteorology; Kochi; India; 5-6 Feb 2004
NON-SCI
 
Publisher Kochi: School of Naval Oceanology and Meteorology, Southern Naval Command