Thu Oct 08, F. Flechtner
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Yu, Xiaohan, Zeng, Xiankui, Gui, Dongwei, Wang, Dong, and Wu, Jichun, 2026. Estimating the Composition of Basin Runoff Based on Water Balance Analysis and Bayesian Uncertainty Analysis. Journal of Hydrometeorology, 27(8):1203–1225, doi:10.1175/JHM-D-25-0218.1.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2026JHyMe..27.1203Y,
author = {{Yu}, Xiaohan and {Zeng}, Xiankui and {Gui}, Dongwei and {Wang}, Dong and {Wu}, Jichun},
title = "{Estimating the Composition of Basin Runoff Based on Water Balance Analysis and Bayesian Uncertainty Analysis}",
journal = {Journal of Hydrometeorology},
year = 2026,
month = aug,
volume = {27},
number = {8},
pages = {1203-1225},
abstract = "{The basin runoff consists of three components: surface water runoff,
baseflow runoff, and groundwater runoff. Accurately estimating
the components of basin runoff can deepen our understanding of
hydrological processes and enhance the reliability of water
balance analysis. However, estimating runoff composition in
large-scale basins with sparse ground observations remains a
challenge, especially for groundwater runoff. This study
proposed a framework using water balance equations and
streamflow routing models to estimate the runoff composition.
The hydrometeorological data used include fifth generation
European Centre for Medium-Range Weather Forecasts (ECMWF)
atmospheric reanalysis (ERA5) precipitation data, Global Land
Evaporation Amsterdam Model (GLEAM) data, Gravity Recovery and
Climate Experiment (GRACE) data, and Global Land Data
Assimilation System (GLDAS) surface runoff data. Moreover,
Markov chain Monte Carlo was applied to calibrate the parameter
of streamflow routing models. Taking the headstream area of
Tarim River basin (TRB) as the study area, the results
demonstrated that the baseflow series during the year can be
either positive or negative. During 2003-17, the average
duration of surface water recharging groundwater is 4.8 month
yr$^{-1}$, while groundwater recharging surface water is 7.2
months. Nevertheless, the average amount of surface water
recharging groundwater is 16.6 {\texttimes} {}10$^{9}$ m$^{3}$
yr$^{-1}$, while groundwater recharging surface water is 9.3
{\texttimes} {}10$^{9}$ m$^{3}$ yr$^{-1}$. Groundwater runoff is
the primary component (88.9\%) of the total runoff of study
area, with surface runoff (7.9\%) and base flow (3.2\%) as the
second and third components, respectively. Thus, this study
provides a feasible approach for estimating runoff composition
in large-scale areas with sparse ground observations.}",
doi = {10.1175/JHM-D-25-0218.1},
adsurl = {https://ui.adsabs.harvard.edu/abs/2026JHyMe..27.1203Y},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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