Impact of fully coupled hydrology-atmosphere processes on atmosphere conditions: investigating the performance of the WRF-Hydro model in the Three River source region on the Tibetan Plateau, China

Li, Guangwei; Meng, Xianhong; Blyth, Eleanor ORCID: https://orcid.org/0000-0002-5052-238X; Chen, Hao; Shu, Lele; Li, Zhaoguo; Zhao, Lin; Ma, Yingsai. 2021 Impact of fully coupled hydrology-atmosphere processes on atmosphere conditions: investigating the performance of the WRF-Hydro model in the Three River source region on the Tibetan Plateau, China [in special issue: Energy and water cycles in the third pole] Water, 13 (23), 3409. 23, pp. https://doi.org/10.3390/w13233409

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Official URL: http://dx.doi.org/10.3390/w13233409

Abstract/Summary

The newly developed WRF-Hydro model is a fully coupled atmospheric and hydrological processes model suitable for studying the intertwined atmospheric hydrological processes. This study utilizes the WRF-Hydro system on the Three-River source region. The Nash-Sutcliffe efficiency for the runoff simulation is 0.55 compared against the observed daily discharge amount of three stations. The coupled WRF-Hydro simulations are better than WRF in terms of six ground meteorological elements and turbulent heat flux, compared to the data from 14 meteorological stations located in the plateau residential area and two flux stations located around the lake. Although WRF-Hydro overestimates soil moisture, higher anomaly correlation coefficient scores (0.955 versus 0.941) were achieved. The time series of the basin average demonstrates that the hydrological module of WRF-hydro functions during the unfrozen period. The rainfall intensity and frequency simulated by WRF-Hydro are closer to global precipitation mission (GPM) data, attributed to higher convective available potential energy (CAPE) simulated by WRF-Hydro. The results emphasized the necessity of a fully coupled atmospheric-hydrological model when investigating land-atmosphere interactions on a complex topography and hydrology region.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.3390/w13233409
UKCEH and CEH Sections/Science Areas:	Directors, SCs
ISSN:	2073-4441
Additional Information. Not used in RCUK Gateway to Research.:	Open Access paper - full text available via Official URL link.
Additional Keywords:	WRF-Hydro model, runoff, precipitation, Three River source region
NORA Subject Terms:	Hydrology Atmospheric Sciences
Date made live:	02 Jan 2022 15:19 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/531670

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.3390/w13233409

UKCEH and CEH Sections/Science Areas:

Directors, SCs

ISSN:

2073-4441

Additional Information. Not used in RCUK Gateway to Research.:

Open Access paper - full text available via Official URL link.

Additional Keywords:

WRF-Hydro model, runoff, precipitation, Three River source region