R: Fulmaris glacialis data

fulmar {gstat} | R Documentation

## Fulmaris glacialis data

### Description

Airborne counts of Fulmaris glacialis during the Aug/Sept 1998 and 1999 flights on the Dutch (Netherlands) part of the North Sea (NCP, Nederlands Continentaal Plat).

### Usage

    data(fulmar)

### Format

This data frame contains the following columns:

year

  year of measurement: 1998 or 1999

x

  x-coordinate in UTM zone 31

y

  y-coordinate in UTM zone 31

depth

  sea water depth, in m

coast

  distance to coast of the Netherlands, in km.

fulmar

  observed density (number of birds per square km)

### Author(s)

Dutch National Institute for Coastal and Marine Management (RIKZ)

### See Also

ncp.grid

E.J. Pebesma, R.N.M. Duin, P.A. Burrough, 2005. Mapping Sea Bird Densities over the North Sea: Spatially Aggregated Estimates and Temporal Changes. Environmetrics 16, (6), p 573-587.

### Examples

    data(fulmar)
    summary(fulmar)
    ## Not run:
    demo(fulmar)

    ## End(Not run)

[Package gstat version 2.0-3 Index]