ocedata (version 0.1.8)

buoy: Measurements made at a buoy off Halifax

Description

This is a data frame holding hourly observations made between March 3 and April 18 of 2014, at the Environment Canada 3-metre discus buoy situated at (44.502N 63.403W) near Halifax Harbour. The contents are as follows; other items in the original data file are ignored.

time

time of observation, in POSIXct format

wind

wind speed in m/s

direction

direction from which the wind is blowing, measured in degrees clockwise of true North.

gust

gust speed in m/s

height

wave height in metres

period

wave period in seconds

pa

atmospheric pressure in kPa

Ta

air temperature in degC

Tw

water temperature in degC

About two percent of the observation times are missing.

Usage

data(buoy)

References

1. http://www.ndbc.noaa.gov/NDBCHandbookofAutomatedDataQualityControl2009.pdf

2. http://www.ndbc.noaa.gov/measdes.shtml

3. http://www.ndbc.noaa.gov/station_page.php?station=44258

Examples

# NOT RUN {
data(buoy, package="ocedata")
par(mfrow=c(3,1))
plot(buoy$time, buoy$wind, ylab="Wind Speed [m/s]")
plot(buoy$time, buoy$height, ylab="Wave height [m]")
plot(buoy$time, buoy$period, ylab="Wave period [s]")
# }