CFtime-package {CFtime}R Documentation

CFtime: working with CF Metadata Conventions "time" dimensions

Description

Support for all calendars as specified in the Climate and Forecast (CF) Metadata Conventions for climate and forecasting data. The CF Metadata Conventions is widely used for distributing files with climate observations or projections, including the Coupled Model Intercomparison Project (CMIP) data used by climate change scientists and the Intergovernmental Panel on Climate Change (IPCC). This package specifically allows the user to work with any of the CF-compliant calendars (many of which are not compliant with POSIXt). The CF time coordinate is formally defined in the CF Metadata Conventions document.

Details

This package also supports the creation of a "time" dimension, using class CFClimatology, for climatological statistics as defined here.

The package can create a CFTime or CFClimatology instance from scratch or, more commonly, it can use the dimension attributes and dimension variable values from a netCDF resource. The package does not actually do any of the reading and the user is free to use their netCDF package of preference. The recommended package to use (with any netCDF resources) is ncdfCF. ncdfCF will automatically use this package to manage the "time" dimension of any netCDF resource. As with this package, it reads and interprets the attributes of the resource to apply the CF Metadata Conventions, supporting axes, auxiliary coordinate variables, coordinate reference systems, etc. Alternatively, for more basic netCDF reading and writing, the two main options are RNetCDF and ncdf4).

Create, modify, inquire

Factors and coverage

Filtering and selection

Author(s)

Maintainer: Patrick Van Laake patrick@vanlaake.net [copyright holder]

See Also

Useful links:


[Package CFtime version 1.6.2 Index]