gimms1.2.3 package

Download and Process GIMMS NDVI3g Data

downloadGimms

Download GIMMS NDVI3g Data

gimms-package

Download and Process GIMMS NDVI3g Data

monthlyComposite

Calculate Monthly Composite Images

monthlyIndices

Create Monthly Indices from NDVI3g Files

oldNaming

Create Traditional GIMMS NDVI3g File Names

qualityControl

Perform Quality Control on GIMMS NDVI3g Data

rasterizeGimms

Rasterize GIMMS NDVI3g Data

rearrangeFiles

Rearrange GIMMS NDVI3g.v0 Files

significantTau

Compute (Pre-Whitened) Kendall's τ\tau

updateInventory

Update GIMMS NDVI3g File Inventory

Download source packageRead PDF manual

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.

  • Maintainer: Florian Detsch
  • License: MIT + file LICENSE
  • Last published: 2025-08-20

Useful links