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 from NASA Ames Ecological Forecasting Lab (ECOCAST); 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: 1.1.3
Depends: R (≥ 2.10), raster, methods
Imports: curl, parallel, Kendall, ncdf4, zyp
Published: 2020-03-19
Author: Florian Detsch [cre, aut]
Maintainer: Florian Detsch <fdetsch at>
License: MIT + file LICENSE
NeedsCompilation: no
Materials: README NEWS
CRAN checks: gimms results


Reference manual: gimms.pdf
Package source: gimms_1.1.3.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release: gimms_1.1.3.tgz, r-oldrel: gimms_1.1.3.tgz
Old sources: gimms archive


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