chronosphere v.0.2.0 is now on CRAN!

We’re excited to announce that chronosphere 0.2.0 is now available on CRAN! You can install it with:

chronosphere was developed to facilitate the spatio-temporal analyses of deep time palaeoenvironment/palaeoecological research by serving as a gateway to data and tools usually used by paleontologists.

chronosphere 0.2.0 (2019-12-16) currently offers the following features:

  • access to various datasets (use dataindex to access the updated list of dataset available)
PALEOMAP Digital Elevation modelpaleomapdem1.000
PALEOMAP Paleoatlas Paleorasterspaleomappaleoatlas0.100
PALEOMAP Paleoatlas Paleorasterspaleomappaleoatlas0.500
Paleobiology DatabasepbdbNA
Continent Fragmentation index of Zaffos et al. 2017timeseriesfragmentNA
J.J. Sepkoski’s genus level compendiumsepkoskigeneraNA
The PaleoReefs DatabaseparedpublicNA
PALEOMAP plate tectonic reconstruction modelpaleomapmodelNA
Hadley Centre Sea Ice and Sea Surface Temperature data setHadISST1sst1.000
ETOPO1 Global Relief Model (ice surface)ETOPO1ice0.017
ETOPO1 Global Relief Model (ice surface)ETOPO1ice0.100
ETOPO1 Global Relief Model (ice surface)ETOPO1ice1.000
ETOPO1 Global Relief Model (bedrock)ETOPO1bed0.017
ETOPO1 Global Relief Model (bedrock)ETOPO1bed0.100
ETOPO1 Global Relief Model (bedrock)ETOPO1bed1.000
The Matthews et al. (2016) rotations with the Muller et al. (2016) static polygonsGPlatesmumaNA
Natural Earth 10m land polygons including major islandsNaturalEarthlandNA
Natural Earth 10m land polygons of minor islandsNaturalEarthminorislandsNA
  • RasterArray S4 class to allow the organisation of spatiotemporal raster data

  • GPlates reconstruction using the online GPlates API Service or the GPlates software for offline reconstructions using the reconstruct function.

  • Raster plotting keeping variables breaks constant through time using the mapplot function.

mapplot(dems,col="ocean",legend=TRUE,legend.title="DEM (m)",

  • Color palettes usually used for plotting environmental data

This is a beta version. Much of the functionality is not yet available/perfect and data access is restricted to publicly available datasets only. Issues and bugreports should go to the GitHub repo issue tracker.

Nussaibah Raja-Schoob
PhD student

PhD student studying dynamics of reefs and reef-builders through time. Food enthusiast and cat lover.