Runoff component quantification and future streamflow projection in a large mountainous basin based on a multidata-constrained cryospheric–hydrological model

Zhang, Mengjiao; Nan, Yi; Tian, Fuqiang

doi:https://doi.org/10.5194/hess-29-1033-2025

Articles | Volume 29, issue 4

https://doi.org/10.5194/hess-29-1033-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-29-1033-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 29, issue 4

Research article

|

27 Feb 2025

Research article |

| 27 Feb 2025

Runoff component quantification and future streamflow projection in a large mountainous basin based on a multidata-constrained cryospheric–hydrological model

Mengjiao Zhang, Yi Nan, and Fuqiang Tian

Supplement

https://doi.org/10.5194/hess-29-1033-2025-supplement

Data sets

ERA5-Land hourly data from 1950 to present J. Muñoz Sabater https://doi.org/10.24381/cds.e2161bac

China meteorological forcing dataset (1979-2018) K. Yang et al. https://doi.org/10.11888/AtmosphericPhysics.tpe.249369.file

The second glacier inventory dataset of China (version 1.0) (2006-2011) S. Liu et al. https://doi.org/10.3972/glacier.001.2013.db

Accelerated global glacier mass loss in the early twenty-first century - Dataset R. Hugonnet et al. https://doi.org/10.6096/13

A daily, 0.05◦ Snow depth dataset for Tibetan Plateau (2000--2018) D. Yan et al. https://doi.org/10.11888/Snow.tpdc.271743

MOD15A2H MODIS/Terra Leaf Area Index/FPAR 8-Day L4 Global 500m SIN Grid V006 R. Myneni et al. https://doi.org/10.5067/MODIS/MOD15A2H.006

MOD13A3 MODIS/Terra vegetation Indices Monthly L3 Global 1km SIN Grid V006 K. Didan https://doi.org/10.5067/MODIS/MOD13A3.006

The component and future trend of streamflow in the Yarlung Tsangpo River Y. Nan https://doi.org/10.5281/zenodo.11111724

Short summary

Owing to differences in the existing published results, we conducted a detailed analysis of the runoff components and future trends in the Yarlung Tsangpo River basin and found that the contributions of snowmelt and glacier melt runoff to streamflow (both ~5 %) are limited and much lower than previous results. The streamflow in this area will continuously increase in the future, but the overestimated contribution of glacier melt could lead to an underestimation of this increasing trend.