Download Package `gstat`

38
pcb
pcb
PCB138 measurements in sediment at the NCP, the Dutch part of the
North Sea
Description
PCB138 measurements in sediment at the NCP, which is the Dutch part of the North Sea
Usage
data(pcb)
Format
This data frame contains the following columns:
year measurement year
x x-coordinate; UTM zone 31
y y-coordinate; UTM zone 31
coast distance to coast of the Netherlands, in km.
depth sea water depth, m.
PCB138 PCB-138, measured on the sediment fraction smaller than 63 µ, in µg/kg dry matter;
BUT SEE NOTE BELOW
yf year; as factor
Note
A note of caution: The PCB-138 data are provided only to be able to re-run the analysis done in
Pebesma and Duin (2004; see references below). If you want to use these data for comparison with
PCB measurements elsewhere, or if you want to compare them to regulation standards, or want to
use these data for any other purpose, you should first contact mailto:[email protected].
minvenw.nl. The reason for this is that several normalisations were carried out that are not reported
here, nor in the paper below.
References
http:/www.gstat.org/, http://www.rikz.nl/
Pebesma, E. J., & Duin, R. N. M. (2005). Spatial patterns of temporal change in North Sea sediment
quality on different spatial scales. In P. Renard, H. Demougeot-Renard & R. Froidevaux (Eds.),
Geostatistics for Environmental Applications: Proceedings of the Fifth European Conference on
Geostatistics for Environmental Applications (pp. 367-378): Springer.
See Also
ncp.grid