A global gross primary productivity product considering canopy nitrogen concentrations and multiple environmental factors from 2001 to 2018

The NI-LUE GPP with 0.05° spatial resolution and at 8 days interval from 2001 to 2018 was generated based on an improved light use efficiency (LUE) model that simultaneously considered temperature, water, atmospheric CO2 concentrations, radiation components, and nitrogen (N) index. In the model, a vegetation index capable of characterizing canopy N concentrations was selected to achieve dynamic mixmum LUE. In addition, global optimum temperature distributions mapped based on satellite-retrieved SIF were introduced to calculate the temperature stress factor. This dataset includes global GPP product and its uncertainty data.

Period: 2001-2018

Spatial resolution: 0.05°

Temporal resolution: 8 days

Projection: geographic latitude/longitude

Data format: Tiff

Upper left coordinates: -180°E, 90°N

Scale factor: 1000

Unit: gCm-2d-1