The purpose of the 'chronosphere' project is to facilitate spatially explicit analyses of (paleo)environmental/ecological research. The package serves as a gateway to plate tectonic reconstructions, deep time global climate model results as well as fossil occurrence datasets such as the Paleobiology Database <https://paleobiodb.org/> and the PaleoReefs Database <https://www.paleo-reefs.pal.uni-erlangen.de/>. Environmental data stored on a remote server can be downloaded and imported directly to the R environment. Query functions to the GPlates <https://www.gplates.org/> desktop application or the GPlates Web Service <https://gws.gplates.org/> allow users to reconstruct coordinates, static plates, and Spatial objects. A wrapper class 'RasterArray' is implemented around the 'RasterLayer' class, allowing the organization of spatially explicit raster data in n-dimensional arrays. The project is developed under the umbrella of the DFG (Deutsche Forschungsgemeinschaft) Research Unit TERSANE2 (For 2332, TEmperature Related Stressors in ANcient Extinctions).

Earth System History Variables

package-ubuntu-20.04-r-4.0.5#cran#chronosphere-0.4.1

<p>The set of functions return names of objects directly transformed to numeric values.
</p>

<table summary="R argblock"><tr valign="top">
<td><code>x</code></td>
<td>
<p>Object with names, colnames or rownames attributes.</p>
</td>
</tr></table>

data(dems)
# ages as numerics
nums(dems)
# younger than 20Ma
dems[nums(dems)<20]

package-ubuntu-20.04-r-4.0.5#cran#chronosphere-0.4.1#docs#nums

nums

Description

Usage

Arguments

Value

Examples

chronosphere

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