CSIR Central

A compact self-recording pressure based sea level gauge suitable for deployments at harbour and offshore environments

IR@NIO: CSIR-National Institute Of Oceanography, Goa


Field	Value

Creator	Desa, E. Peshwe, V.B. Joseph, A. Mehra, P. Naik, G.P. Kumar, V. Desa, E.S. Desai, R.G.P. Nagvekar, S. Desai, S.P.

Date	2009-01-07T10:27:38Z 2009-01-07T10:27:38Z 2001

Identifier	SYMPOL-2001: Proceedings of the National Symposium on Ocean Electronics, 18-19 December 2001, 9-21p. http://drs.nio.org/drs/handle/2264/1541

Description	A compact and lightweight self-recording pressure based sea level gauge has been designed to suit deployments from harbour and offshore environments. A novel hydraulic coupling device designed in-house was used to transfer the seawater pressure to the pressure transducer. This paper discussed the mechanical and electronic design of the instrument, calibration results, field-performance, and validation. The instrument was calibrated using an in-house facility and validation tests performed at Zuari Estuary, Goa, India against a conventional analog-type float-driven sea level gauge, and a digital-type float-driven sea level gauge. All the three devices exhibited similar trends in their responses. The observed minor differences can be attributed to corresponding differences in the responses of these devices to changing site-specific environmental factors such as currents, waves, estuarine water density variations with changing phases of the tide, and so forth. The monthly-mean sea levels derived from the SOI and the NIO gauges were closer within approx 1.5 mm.

Language	en

Publisher	SYMPOL

Rights	Copyright [2001]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.

Subject	oceanographic equipment sea level gauges measuring devices recording equipment pressure deployment harbours offshore product development design technology transfer

Title	A compact self-recording pressure based sea level gauge suitable for deployments at harbour and offshore environments

Type	Conference Article