Articles | Volume 29, issue 17
https://doi.org/10.5194/hess-29-4015-2025
https://doi.org/10.5194/hess-29-4015-2025
Research article
 | 
01 Sep 2025
Research article |  | 01 Sep 2025

Toward merging MOPEX and CAMELS hydrometeorological datasets: compatibility and statistical comparison

Katharine Sink and Tom Brikowski

Cited articles

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Andréassian, V., Perrin, C., and Michel, C.: Impact of imperfect potential evapotranspiration knowledge on the efficiency and parameters of watershed models, J. Hydrol., 286, 19–35, https://doi.org/10.1016/j.jhydrol.2003.09.030, 2004. 
Beck, H. E., Zimmermann, N. E., McVicar, T. R., Vergopolan, N., Berg, A., and Wood, E. F.: Present and future köppen-geiger climate classification maps at 1-km resolution, Sci. Data, 5, 1–12, https://doi.org/10.1038/sdata.2018.214, 2018. 
Berghuijs, W. R., Sivapalan, M., Woods, R. A., and Savenije, H. H. G.: Patterns of similarity of seasonal water balances: A window into streamflow variability over a range of time scales, Water Resour. Res., 50, 5638–5661, https://doi.org/10.1002/2014WR015692, 2014. 
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Short summary
This study compares two prominent hydrometeorological datasets across 47 shared watersheds in the United States to assess their compatibility. While daily temperature and precipitation data showed notable discrepancies, agreement improved at monthly, seasonal, and annual scales. The variability between the datasets is comparable to the inherent variability within each individual dataset, and our findings validate the results of previous research employing either dataset. 
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