Articles | Volume 28, issue 1
https://doi.org/10.5194/hess-28-205-2024
https://doi.org/10.5194/hess-28-205-2024
Research article
 | 
12 Jan 2024
Research article |  | 12 Jan 2024

Seasonal dynamics and spatial patterns of soil moisture in a loess catchment

Shaozhen Liu, Ilja van Meerveld, Yali Zhao, Yunqiang Wang, and James W. Kirchner

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Cited articles

Brocca, L., Melone, F., Moramarco, T., and Morbidelli, R.: Spatial-temporal variability of soil moisture and its estimation across scales, Water Resour. Res., 46, W02516, https://doi.org/10.1029/2009WR008016, 2010. 
Chen, F., Crow, W. T., Starks, P. J., and Moriasi, D. N.: Improving hydrologic predictions of a catchment model via assimilation of surface soil moisture, Adv. Water Resour., 34, 526–536, https://doi.org/10.1016/j.advwatres.2011.01.011, 2011. 
Choi, M. and Jacobs, J. M.: Soil moisture variability of root zone profiles within SMEX02 remote sensing footprints, Adv. Water Resour., 30, 883–896, https://doi.org/10.1016/j.advwatres.2006.07.007, 2007. 
Dymond, S. F., Wagenbrenner, J. W., Keppeler, E. T., and Bladon, K. D.: Dynamic hillslope soil moisture in a mediterranean montane watershed, Water Resour. Res., 57, e2020WR029170, https://doi.org/10.1029/2020WR029170, 2021. 
Famiglietti, J. S., Ryu, D., Berg, A. A., Rodell, M., and Jackson, T. J.: Field observations of soil moisture variability across scales, Water Resour. Res., 44, W01423, https://doi.org/10.1029/2006WR005804, 2008. 
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Short summary
We study the seasonal and spatial patterns of soil moisture in 0–500 cm soil using 89 monitoring sites in a loess catchment with monsoonal climate. Soil moisture is highest during the months of least precipitation and vice versa. Soil moisture patterns at the hillslope scale are dominated by the aspect-controlled evapotranspiration variations (a local control), not by the hillslope convergence-controlled downslope flow (a nonlocal control), under both dry and wet conditions.
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