gimms: Download and Process GIMMS NDVI3g Data

This is a set of functions to retrieve information about GIMMS NDVI3g files currently available online; download (and re-arrange, in the case of NDVI3g.v0) the half-monthly data sets; import downloaded files from ENVI binary (NDVI3g.v0) or NetCDF format (NDVI3g.v1) directly into R based on the widespread 'raster' package; conduct quality control; and generate monthly composites (e.g., maximum values) from the half-monthly input data. As a special gimmick, a method is included to conveniently apply the Mann-Kendall trend test upon 'Raster*' images, optionally featuring trend-free pre-whitening to account for lag-1 autocorrelation.

Version:	1.2.3
Depends:	R (≥ 3.5), raster, methods
Imports:	curl, parallel, Kendall, ncdf4, zyp
Suggests:	tinytest
Published:	2025-08-20
DOI:	10.32614/CRAN.package.gimms
Author:	Florian Detsch [cre, aut]
Maintainer:	Florian Detsch <fdetsch at web.de>
BugReports:	https://github.com/environmentalinformatics-marburg/gimms/issues
License:	MIT + file LICENSE
URL:	https://github.com/environmentalinformatics-marburg/gimms
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	gimms results

Documentation:

Reference manual:

gimms.html , gimms.pdf

Downloads:

Package source:	gimms_1.2.3.tar.gz
Windows binaries:	r-devel: gimms_1.2.3.zip, r-release: gimms_1.2.3.zip, r-oldrel: gimms_1.2.3.zip
macOS binaries:	r-release (arm64): gimms_1.2.3.tgz, r-oldrel (arm64): gimms_1.2.3.tgz, r-release (x86_64): gimms_1.2.3.tgz, r-oldrel (x86_64): gimms_1.2.3.tgz
Old sources:	gimms archive

Linking:

Please use the canonical form https://CRAN.R-project.org/package=gimms to link to this page.