Comparison of two data acquisition protocols for tide gauge sensors at Imbituba port – Santa Catarina State
DOI:
https://doi.org/10.52945/rac.v34i3.679Keywords:
monitoring, navigation, data quality, databaseAbstract
The Santa Catarina Tide Gauge Network (SCTGN) is a continuous sea level monitoring system to support fishery, aquaculture, and navigation in general. Deployed in the state of Santa Catarina, Brazil, the initiative started in 2012 with one tide gauge at the Santa Catarina Island South Bay to support aquaculture research projects and hydrodynamic numerical modelling. By 2020, the SCTGN was fully operational, consisting of 11 tide gauge stations along the 450km of the Santa Catarina coastal line. The next step is standardizing these tide stations to international data collection protocols. Knowledge of the effects different programming protocols have on data collection are important since they may affect the results. Data from a radar gauge (RG) and a vented (or relative) pressure gauge (VPG) were obtained over six months. The difference between RG and VPG measurements showed a 5.07cm2 variance. Percentage of reading errors was 0.03% and 0.77% for RG and VPG, respectively. This study aims to evaluate the feasibility of the SCTGN data collection protocol in the RG to comply with the Intergovernmental Oceanographic Commission (IOC) recommendations for sea level monitoring. We find that an RG gauge using the SCTGN protocol is adequate to monitor sea levels and has an easier installation and maintenance, and more stable vertical datum control.
Metrics
References
FRANCO, A.S. Marés: Fundamentos, Análise e Previsão. 2. ed. Niterói, RJ: Diretoria de Hidrografia e Navegação (DHN), 2009. 344 p.
GRAYBEAL, D.Y.; DEGAETANO, A.T.; EGGLESTON, K.L. Complex quality assurance of historical hourly surface airways meteorological data. Journal of Atmospheric and Oceanic Technology, v. 21, p. 1156-1169, 2004. DOI: https://doi.org/10.1175/1520-0426(2004)021<1156:CQAOHH>2.0.CO;2
IBGE. Instituto Brasileiro de Geografia e Estatística. Relatório de Monitoramento da Variação do Nível Médio do Mar nas Estações da Rede Maregráfica Permanente para Geodésia – 2001-2012, 2013. 47p. Available at: http://geoftp.ibge.gov.br/ /informacoes_sobre_posicionamento_geodesico/rmpg/relatorio/relatorio_RMPG_2001_2013_GRRV.pdf. Access in: May 2019.
IOC. Intergovernmental Oceanographic Commission - UNESCO. Manual on Sea Level Measurement and Interpretation – Radar Gauges volume V – Manuals and Guides 14. JCOMM Technical Report No. 89, 2016, 104p. Available at: https://unesdoc.unesco.org/ark:/48223/pf0000246981. Access in: May 2019.
MEHRA, P.; PRABHUDESAI, R.G.; JOSEPH, A.; AGARVADEKAR, Y.; LUIS, R.; DAMODARAN, S.; VIEGAS, B. A one-year comparison of radar and pressure tide gauge at Goa, West Coast of India. In: Proceedings of the International Symposium on Ocean Electronics (SYMPOL), Cochin, 2009, p. 173-183.
NIVETEC. Manual do transmissor de nível tipo hidrostático 780, 2017, 4p. Avaiable at: https://nivetec.com.br/wp-content/uploads/2019/05/ /NT_MN_Nivetec_S780.pdf. Access in: November 2018.
OTT. Operating instructions Radar Level Sensor OTT RLS, 2015, 32p. Available at: https://www.ott.com/en-us/products/download/ott-rls-manual-us/OTT_RLS_ _US_Manual.pdf. Access in: November 2018.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2020 Luis Hamilton Pospissil Garbossa, Matias Guilherme Boll, Argeu Vanz, Camila Kuminek de Amorim
This work is licensed under a Creative Commons Attribution 4.0 International License.
