The plots are produced for the standard TRENDY S3 simulation 2019 (0.5° resolution, monthly outputs, average for 2009-2018). The data shown in columns:
Mean annual NPP
Mean negative annual NPP (only the months with negative NPP are accounted)
Number of months with negative NPP
Time-series over the pixel with the minimal annual NPP
Time-series over the pixel with the minimal negative annual NPP