GIMMS NDVI3g V1.0發布。 如需要Geotiff格式文件，請聯系作者，qq：350150279。 付費提供tif格式（U盤快遞）。
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下載地址：https://ecocast.arc.nasa.gov/data/pub/gimms
比較V0版本的變化是：
1. 數據做成了netcdf4文件格式。半年一個nc文件，每月2期數據。
2. flag簡化。
3. 增加percentle變量。
Comments Version1:
version1 includes two major fixes (a and b), and three minor (c-g):
(a) Reprocessed Level 2 entire SeaWIFS mission for the land products to reduce artifacts in the data, particularly changes in calibration after 2006 that generates drops in ndvi lower values. OB.DAAC / Ocean Biology Processing group NASA/GSFC 616 (april 2016)
(b) Recovered ndvi negative values of snow-covered regions in winter Northern latitudes. In Version0, we masked them with zero values, creating artifacts in phenology parameters.
(c) Arranged data in ncd format, compiled it in two nc4 files a year. Each nc4 file includes 6 months of ndvi data (jan-jun and jul-dec), with a total of 12 (15-day) composites each semester.
(d) Rescaled ndvi values and splitted the flag values from them.
(e) Added a new variable, percentile, to represent the distribution of ndvi values in the time series. Range 10*[0, 100]
(f) Flag values are (simpler): flag 0: ndvi without apparent issues (good value) flag 1: ndvi retrieved from spline interpolation flag 2: ndvi retrieved from seasonal profile (possible snow/cloud)