The product is characterized by the integration of SM2RAIN-derived rainfall, GPM Late run precipitation and ERA5 Land estimates. The soil moisture-based estimates are obtained through the application of SM2RAIN to ASCAT retrievals. The three product are merged with a triple collocation technique. Prior the merging, the data are downscaled at 1 km spatial resolution using CHELSA (1 km) climatology. The merging technique allows to obtain a high-resolution product (1km, 24 hour) over Europe. The product has been developed in the framework of the 4DHydro project for the entire ASCAT era (2007-2022).
4DHYDRO precipitation product: ERA5+SM2RAIN+GPM
Paolo Filippucci;Luca Ciabatta;Christian Massari;Hamidreza Mosaffa;Luca Brocca
2024
Abstract
The product is characterized by the integration of SM2RAIN-derived rainfall, GPM Late run precipitation and ERA5 Land estimates. The soil moisture-based estimates are obtained through the application of SM2RAIN to ASCAT retrievals. The three product are merged with a triple collocation technique. Prior the merging, the data are downscaled at 1 km spatial resolution using CHELSA (1 km) climatology. The merging technique allows to obtain a high-resolution product (1km, 24 hour) over Europe. The product has been developed in the framework of the 4DHydro project for the entire ASCAT era (2007-2022).File in questo prodotto:
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