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Reply to comment on "Five decades of observed daily precipitation reveal longer and more variable drought events across much of the western United States"

January 4, 2024

Paciorek and Wehner raise important questions around our use of the Mann-Kendall nonparametric trend test on smoothed data for analyzing long-term hydrometeorological trends in Zhang et al. (2021, https://doi.org/10.1029/2020gl092293). We thank them for initiating this important conversation and their gracious cooperation in exploring the issues addressed in their comment. In this reply we confirm the inflation of significant p-values by our choice to smooth, illustrate the relatively minor impacts on the main conclusions of our paper, and add our voices to those of Paciorek and Wehner in highlighting the lack of methodology for hypothesis testing across multiple stations that have spatial structure (i.e., testing for regionally consistent trends).

Publication Year 2024
Title Reply to comment on "Five decades of observed daily precipitation reveal longer and more variable drought events across much of the western United States"
DOI 10.1029/2023GL105124
Authors Joel A. Biederman, Fangyue Zhang, Matthew P. Dannenberg, Dong Yan, Sasha C. Reed, William K. Smith
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Geophysical Research
Index ID 70256657
Record Source USGS Publications Warehouse
USGS Organization Southwest Biological Science Center