getCRUCLdata v0.3.1

0

Monthly downloads

0th

Percentile

'CRU' 'CL' v. 2.0 Climatology Client

Provides functions that automate downloading and importing University of East Anglia Climate Research Unit ('CRU') 'CL' v. 2.0 climatology data, facilitates the calculation of minimum temperature and maximum temperature and formats the data into a tidy data frame as a 'tibble' or a list of 'raster' 'stack' objects for use. 'CRU' 'CL' v. 2.0 data are a gridded climatology of 1961-1990 monthly means released in 2002 and cover all land areas (excluding Antarctica) at 10 arcminutes (0.1666667 degree) resolution. For more information see the description of the data provided by the University of East Anglia Climate Research Unit, <https://crudata.uea.ac.uk/cru/data/hrg/tmc/readme.txt>.

Readme

getCRUCLdata: Use and Explore CRU CL v. 2.0 Climatology Elements in R

Build Status Build status Codecov test coverage DOI CRAN\_Status\_Badge Project Status: Active – The project has reached a stable, usable state and is being actively developed. JOSS status

Author/Maintainer: Adam Sparks

Introduction to getCRUCLdata

The getCRUCLdata package provides functions that automate importing CRU CL v. 2.0 climatology data into R, facilitate the calculation of minimum temperature and maximum temperature, and formats the data into a tidy data frame as a tibble::tibble() or a list() of raster::stack() objects for use in an R session.

CRU CL v. 2.0 data are a gridded climatology of 1961-1990 monthly means released in 2002 and cover all land areas (excluding Antarctica) at 10 arcminutes (0.1666667 degree) resolution. For more information see the description of the data provided by the University of East Anglia Climate Research Unit (CRU), https://crudata.uea.ac.uk/cru/data/hrg/tmc/readme.txt.

Changes to original CRU CL v. 2.0 data

This package automatically converts elevation values from kilometres to metres.

This package crops all spatial outputs to an extent of ymin = -60, ymax = 85, xmin = -180, xmax = 180. Note that the original wind data include land area for parts of Antarctica.

Quick Start

Install

Stable version

A stable version of getCRUCLdata is available from CRAN.

install.packages("getCRUCLdata")

Development version

A development version is available from from GitHub. If you wish to install the development version that may have new features (but also may not work properly), install the tidyverse remotes package, available from CRAN. I strive to keep the master branch on GitHub functional and working properly, although this may not always happen.

if (!require("remotes")) {
  install.packages("remotes")
}

install_github("ropensci/getCRUCLdata", build_vignettes = TRUE)

Documentation

For complete documentation see the package website: https://docs.ropensci.org/getCRUCLdata/

Meta

CRU CL v. 2.0 reference and abstract

Mark New (1,*), David Lister (2), Mike Hulme (3), Ian Makin (4)

A high-resolution data set of surface climate over global land areas Climate Research, 2000, Vol 21, pg 1-25

1) School of Geography and the Environment, University of Oxford, Mansfield Road, Oxford OX1 3TB, United Kingdom
2) Climatic Research Unit, and (3) Tyndall Centre for Climate Change Research, both at School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
3) International Water Management Institute, PO Box 2075, Colombo, Sri Lanka

ABSTRACT: We describe the construction of a 10-minute latitude/longitude data set of mean monthly surface climate over global land areas, excluding Antarctica. The climatology includes 8 climate elements - precipitation, wet-day frequency, temperature, diurnal temperature range, relative humidity,sunshine duration, ground frost frequency and windspeed - and was interpolated from a data set of station means for the period centred on 1961 to 1990. Precipitation was first defined in terms of the parameters of the Gamma distribution, enabling the calculation of monthly precipitation at any given return period. The data are compared to an earlier data set at 0.5 degrees latitude/longitude resolution and show added value over most regions. The data will have many applications in applied climatology, biogeochemical modelling, hydrology and agricultural meteorology and are available through the School of Geography Oxford (http://www.geog.ox.ac.uk), the International Water Management Institute “World Water and Climate Atlas” (http://www.iwmi.org) and the Climatic Research Unit (http://www.cru.uea.ac.uk).

Contributors

Other

  • Please report any issues or bugs.

  • License: MIT

  • Get citation information for getCRUCLdata in R typing citation(package = "getCRUCLdata")

  • Please note that the getCRUCLdata project is released with a Contributor Code of Conduct. By participating in the \ getCRUCLdata project you agree to abide by its terms.

ropensci

Functions in getCRUCLdata

Name Description
manage_cache Manage locally cached CRU CL v. 2.0 files
get_CRU_df Download and Create a Tidy Data Frame of CRU CL v. 2.0 Climatology Variables
create_CRU_stack Create a List of Raster Stack Objects From CRU CL v. 2.0 Climatology Variables on Local Disk
create_CRU_df Create a Tidy Data Frame From CRU CL v.2.0 Climatology Variables on Local Disk
get_CRU_stack Download and Create a List of Raster Stack Objects From CRU CL v. 2.0 Climatology Variables
getCRUCLdata getCRUCLdata: Download and Create a Data Frame or Raster Stack Object of CRU CL v. 2.0 Climatology Variables
No Results!

Vignettes of getCRUCLdata

Name
README-unnamed-chunk-10-1.png
README-unnamed-chunk-11-1.png
README-unnamed-chunk-6-1.png
README-unnamed-chunk-7-1.png
getCRUCLdata.Rmd
No Results!

Last month downloads

Details

Type Package
License MIT + file LICENSE
LazyData TRUE
RoxygenNote 6.1.1
ByteCompile TRUE
Encoding UTF-8
URL https://docs.ropensci.org/getCRUCLdata/
BugReports https://github.com/ropensci/getCRUCLdata/issues
VignetteBuilder knitr
X-schema.org-applicationCategory Tools
X-schema.org-keywords anglia-cru, climate-data, cru-cl2, temperature, rainfall, elevation, data-access, wind, relative-humidity, solar-radiation, diurnal-temperature, frost
X-schema.org-isPartOf https://ropensci.org
Language en-GB
NeedsCompilation no
Packaged 2019-08-29 20:06:15 UTC; adamsparks
Repository CRAN
Date/Publication 2019-08-29 20:20:02 UTC

Include our badge in your README

[![Rdoc](http://www.rdocumentation.org/badges/version/getCRUCLdata)](http://www.rdocumentation.org/packages/getCRUCLdata)