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Title: Extreme sea levels for section 105 surveys : final report
Author: Environment Agency North West Region
Document Type: Monograph
Annotation: EA additional title info: surveys final report July 1998
This report summarises work undertaken to calculate extreme sea levels at 10 sites around the North West coast of the UK. The methods adopted include (i) the Spatial Revised Joint Probability Method (SRJPM) described by Dixon and Tawn (1997), and (ii) a General Extreme Value (GEV) distribution fitted to the annual maximum data by the method of maximum likelihood (GEV-MLE) and by probability weighted moments (GEV-PWM). The results suggest that the SRJPM and the revised SRJPM do not accurately predict extreme sea levels at all monitoring sites and thus the use of the SRJPM at sites without recorded data may also be inaccurate. It is therefore suggested that, at unmeasured sites, the weighted distance from 2 adjacent sites with a sufficiently long period of record should be used to interpolate extreme sea levels. This report includes a methodology for interpolation of the calculated extreme sea levels to other sites in the area.
Publisher: Environment Agency
Publication Date: 1998
Publication Place: Warrington
Subject Keywords: Sea levelWeatherMethodologyCoastsTides
Geographic Keywords: LiverpoolWorkingtonBarrowHeyshamLlandudno
Extent: 9; + tables, figures, appendices
Total file downloads: 281

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