 Multisource weighted ensemble precipitation MSWP version 1.1 is a new global precipitation dataset designed for hydrologic modeling. It combines the best features of multiple precipitation datasets, including satellite remote sensing, reanalysis models, and ground-based observations to provide a high-resolution, high-quality precipitation product. MSWP version 1.1 has been validated against independent observations from 125 fluxnet sites and 9,000 and 11 catchments worldwide. It outperforms existing precipitation products in terms of accuracy and consistency, providing a reliable source of precipitation information for hydrologic modeling applications. This article was authored by H. E. Bach, A. I. J. M. van Dijk, V. Levazzani, and others.