ocedata (version 0.1.8)

secchi: Secchi depth dataset

Description

Measurements of Secchi depth in the North and Baltic Seas

Usage

data(secchi)

References

Thorkild Aarup 2002, Transparency of the North Sea and Baltic Sea--a Secchi Depth data mining study, Oceanologia, 44(3), 323-337.

Examples

# NOT RUN {
data(coastlineWorldMedium, package="ocedata")
data(secchi, package="ocedata")
# }
# NOT RUN {
    logdepth <- log10(secchi$depth)
    cm <- colormap(logdepth)
    par(mar=c(3, 3, 2, 1))
    oce::drawPalette(colormap=cm)
    oce::plot(coastlineWorldMedium, clongitude=10, clatitude=60, span=4000,
              mar=par("mar"))
    points(secchi$longitude, secchi$latitude, pch=1, col=cm$zcol, cex=0.5)
    title("log10 of secchi depth in m")
# }