gimms-package | R Documentation |
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.
Florian Detsch
Pinzon, JE & Tucker, CJ (2014). A Non-Stationary 1981-2012 AVHRR NDVI3g Time Series. Remote Sensing, 6(8), 6929-6960, \Sexpr[results=rd]{tools:::Rd_expr_doi("10.3390/rs6086929")}.
The National Center for Atmospheric Research (2018). A Big Earth Data Platform for Three Poles. Global GIMMS NDVI3g v1 dataset (1981-2015). Available online at http://poles.tpdc.ac.cn/en/data/9775f2b4-7370-4e5e-a537-3482c9a83d88/ (accessed on 2021-04-15).
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