Renext (version 2.1-10)

Brest: Surge heights at Brest

Description

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

Usage

Brest

encoding

UTF-8

format

The format is: List of 5

• $info: List of 6
  • $name: chr"Brest"
  • $shortLab: chr"Surge Heights at Brest (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 at Brest (France)..."
• $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://data.shom.fr

Details

Data are provided as a list.

• infoprovides 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.
• OTdatagives OT measurements.
• OTmissinggives the start and end of the missing periods for OT measurements.

Data come from hourly sea levels measured and predicted by the french Service Hydrogéographique{Hydrogeographique} et Océanographique{Oceanographique} de la Marine (SHOM). Observed sea levels are available as REFMAR data at the url http://data.shom.fr. 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

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