GNIP_Europe

This dataset contains the mean and variance of Deuterium delta precipitation values of European weather stations sampled between 1960 and 2013. Original data have been compiled by the International Atomic Energy Agency IAEA in Vienna (GNIP Project: Global Network of Isotopes in Precipitation).

datasets

Building isoscapes using mixed models and inferring the geographic origin of organisms based on their isotopic ratios. This package is essentially a simplified interface to several other packages. It uses 'spaMM' for fitting and predicting isoscapes, and assigning an organism's origin depending on its isotopic ratio. 'IsoriX' also relies heavily on the package 'rasterVis' for plotting the maps using lattice.

Alexandre Courtiol

IsoriX

Isoscape Computation and Inference of Spatial Origins using
Mixed Models

GNIP_Europe function

The <var>dataframe</var> includes 296 observations for the following variables:
	<table><tr><td>
	[, 1] </td>
<td> stationID </td>
<td> (<var>Factor</var>) </td>
</tr><tr><td> Identification number of weather station</td>
<td>
	[, 2] </td>
<td> isoscape.value </td>
</tr><tr><td> (<var>numeric</var>) </td>
<td> Mean Deuterium delta value [per thousand]</td>
<td>
	[, 3] </td>
</tr><tr><td> var.isoscape.value </td>
<td> (<var>numeric</var>) </td>
<td> Variance in Deuterium delta value [per million]</td>
</tr><tr><td>
	[, 4] </td>
<td> lat </td>
<td> (<var>numeric</var>) </td>
</tr><tr><td>  Latitude coordinate [decimal degrees]</td>
<td>
	[, 5] </td>
<td> long </td>
</tr><tr><td> (<var>numeric</var>) </td>
<td> Longitude coordinate [decimal degrees]</td>
<td>
	[, 6] </td>
</tr><tr><td> elev </td>
<td> (<var>numeric</var>) </td>
<td> Elevation asl [m]</td>
</tr></table>

Format

Data extracted from IAEA (see below for more details).

GNIP_Europe: European weather station data

Description

Usage

Arguments

Format

Source

References

See Also

Examples

[, 1]	stationID	(`Factor`)
Identification number of weather station	[, 2]	isoscape.value
(`numeric`)	Mean Deuterium delta value [per thousand]	[, 3]
var.isoscape.value	(`numeric`)	Variance in Deuterium delta value [per million]
[, 4]	lat	(`numeric`)
Latitude coordinate [decimal degrees]	[, 5]	long
(`numeric`)	Longitude coordinate [decimal degrees]	[, 6]
elev	(`numeric`)	Elevation asl [m]