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Development of Global Land Surface Phenology Product from Time Series of VIIRS Observations

Vegetation phenology is a sensitive indicator of biological responses to environmental change, and is readily observable and understandable to the public. Land Surface Phenology (LSP) derived from satellite data quantifies the seasonal dynamics of vegetation activity including phenological transition timing and greenness magnitude in vegetation communities. This paper presents the development of a global LSP product at a spatial resolution of 500m from daily observations of Visible Infrared Imaging Radiometer Suite (VIIRS). This product produces seven metrics of phenological timings and five metrics of phenological greenness. Spatial examination indicates that global VIIRS LSP reveals clear regular and irregular pattern across different geographical regions, ecosystems, and climate regimes. This VIIRS LSP product provides the continuity of MODIS land cover dynamics product.