MODIS Terra Net Evapotranspiration Gap-Filled Yearly L4 Global 500m
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EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC WATER VAPOR>WATER VAPOR PROCESSES>EVAPOTRANSPIRATION
The MODIS Terra MOD16A3GF Version 6.1 product provides a yearly gap-filled composite of Evapotranspiration (ET) and Latent Heat Flux (LE) at 500 m spatial resolution. The dataset is generated using an algorithm based on the Penman-Monteith equation, which integrates daily meteorological reanalysis data with MODIS-derived variables such as vegetation dynamics, albedo, and land cover. The product is produced at the end of each year once the complete annual MOD15A2H LAI/FPAR dataset becomes available. Poor-quality LAI/FPAR inputs are identified using quality control flags and replaced through linear interpolation to improve data consistency. The dataset includes layers for ET, LE, Potential Evapotranspiration (PET), and Potential Latent Heat Flux (PLE), along with a quality control layer. Annual ET and PET values represent the sum of daily values over the year, while LE and PLE represent the annual average. Low-resolution browse images for ET and LE are also provided for each granule.