Renext (version 1.0-0)

Brest: Surge heights at Brest

Description

Surge heights near high tide at Brest tide gauge station (France), detailed version

Usage

data(Brest)

format

The format is: List of 5

• $info: List of 6
  • $name: chr"Brest"
  • $shortLab: chr"Surge Heights at Bres (France)"
  • $longLab: chr"Surge Heights near high tide, Brest (France)"
  • $varName: chr"Surge"
  • $varShortLab: chr"Surge"
  • $varUnit: chr"cm"
• $describe: chr "High tide sea surge over 30 cm atBrest(France) separated byat least two days."
• $OTinfo: List of 4
  • $start: chr POSIXct[1:1], format:"1845-12-31 23:59:39"
  • $end: chr POSIXct[1:1], format:"2009-01-01"
  • $effDuration: num148
  • $threshold: num30
• $OTdata: 'data.frame': 1289 obs. of 2 variables:
  • $date: POSIXct[1:1289], format:"1846-01-13 23:59:39" "1846-01-20 23:59:39"...
  • $Surge: num [1:1289]36 60 46 40 33...
• $OTmissing: 'data.frame': 43 obs. of 3 variables:
  • $start: POSIXct[1:43], format:"1845-12-31 23:59:39" "1847-12-31 23:59:39"...
  • $end: POSIXct[1:43], format:"1846-01-03 23:59:39" "1847-01-20 23:59:39"...
  • $comment: chr [1:43]NA NA NA NA...
  -attr(*, "class")= chr "Rendata"

source

http://www.sonel.org

Details

Data are provided as a list.

• infogives general information about the data
• OTinfogives general information about the Over the Threshold part of data. The effective duration (effdurationelement) is the total duration for the periods with effective measurements.
• OTdatagive OT measurements
• OTmissinggives start and end of the missing periods for OT measurements.

Data come from hourly sea levels measured and predicted by the french Service Hydrogeographique et Oceanographique de la Marine (SHOM). Observed sea levels are available at the url http://www.sonel.org. Data were processed (declustered) by IRSN in order to provide a series of independent surge heights at high tide. Surge height at high tide is defined as the difference between the observed and the predicted maximal sea levels near high tide. A correction was applied to account for trend in the sea-level over the observation period.

The effective duration given in years is defined up to a small fraction of year due to leap years and leap seconds.

Examples

data(Brest)
str(Brest)
Brest$OTinfo$start
plot(Brest)