Automating tide gauge quality control

Williams, Joanne ORCID: https://orcid.org/0000-0002-8421-4481; Matthews, Andrew ORCID: https://orcid.org/0000-0001-5210-2453. 2020 Automating tide gauge quality control. [Poster] In: EGU General Assembly 2020, 4–8 May 2020. EGU General Assembly.

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Abstract/Summary

Tide gauges provide a vital component in coastal flooding alert systems, and as a record of past events. They are used to record short duration extremes such as tsunamis, storm surges lasting a few hours, regular tides, and long term changes in relative sea-level. Globally, there is far more tide gauge data in existence than is available in the public domain for research. A significant factor obstructing the release of data is that quality control of tide-gauge records is still carried out with a great deal of manual inspection, and is therefore labour-intensive. Automated systems must carefully distinguish between spikes due to instrumental error and genuine rare extreme events; and between damaged instruments and still water. The National Oceanography Centre automatic quality control software aims to enable analysis of any high-frequency tide-gauge record around the world with minimal manual intervention or parameter selection. We demonstrate the implementation in Matlab and discuss the successes and challenges of the software.

Item Type:	Publication - Conference Item (Poster)
Digital Object Identifier (DOI):	10.5194/egusphere-egu2020-1561
Date made live:	31 Jul 2020 14:42 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/528271

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