Tide gauge data processing - Viana do Castelo station

• DOI: https://doi.org/10.22533/at.ed.813522527028

• Palavras-chave: quality control, tide, tide gauges, accuracy, time series.

• Keywords: quality control, tide, tide gauges, accuracy, time series.

• Abstract:

  The classic issue of tide gauge data quality has become more important in the last decade as new technologies have emerged and tide gauge networks have been modernized. This work made it possible not only to evaluate the performance of the tide gauges in the tide gauge network, but also to present quality control techniques for tide data recorded in quasi-real time, which implies the need to implement automatic error detection and signaling software. Quality control consists of detecting anomalous values, incorrect date and time assignments and calculating residuals. To assess the measurement performance of tide gauge equipment, the Van de Casteele test was revisited. The validation of in situ sea level observations was based on quality control procedures suggested by international standards.