An intercomparison of four gridded precipitation products over Europe using an extension of the three-cornered-hat method

Lledó, Llorenç; Haiden, Thomas; Chevallier, Matthieu

doi:https://doi.org/10.5194/hess-28-5149-2024

Articles | Volume 28, issue 23

https://doi.org/10.5194/hess-28-5149-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-28-5149-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 28, issue 23

Research article

|

29 Nov 2024

Research article |

| 29 Nov 2024

An intercomparison of four gridded precipitation products over Europe using an extension of the three-cornered-hat method

Llorenç Lledó, Thomas Haiden, and Matthieu Chevallier

Data sets

GPM IMERG Final Precipitation L3 1 day 0.1 degree x 0.1 degree V07 G. Huffman https://doi.org/10.5067/GPM/IMERGDF/DAY/07

ERA5 hourly data on single levels from 1940 to present Copernicus Climate Change Service https://doi.org/10.24381/cds.adbb2d47

E-OBS version 26.0e Copernicus Climate Change Service https://surfobs.climate.copernicus.eu/dataaccess/access_eobs.php

Interactive computing environment

Jupyter notebook containing all the analyses Llorenç Lledó https://github.com/lluritu/4CH_precip_comparison/

Short summary

High-quality observational datasets are essential to perform forecast verification and improve weather forecast services. When it comes to verifying precipitation, a high-resolution, global-coverage and good-quality dataset is not yet available. This research analyses the strengths and shortcomings of four observational products that employ complementary measurement techniques to estimate surface precipitation. Satellites provide good spatial coverage, but other products are still more accurate.