Articles | Volume 19, issue 11
https://doi.org/10.5194/tc-19-6301-2025
https://doi.org/10.5194/tc-19-6301-2025
Research article
 | 
27 Nov 2025
Research article |  | 27 Nov 2025

Updated monthly and new daily bias correction for assimilation-based passive microwave SWE retrieval

Pinja Venäläinen, Colleen Mortimer, Kari Luojus, Lawrence Mudryk, Matias Takala, and Jouni Pulliainen

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Short summary
Satellite data-based estimation of large snow water equivalent (SWE) values can be improved with bias correction. This study updates the bias correction method by using updated snow course data, extending correction to two new months. Additionally, bias correction is expanded from a monthly to a daily time scale. The daily bias correction offers more accurate hemispheric snow mass estimation, aligning well with reanalysis data.
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