Preprints
https://doi.org/10.5194/essd-2023-422
https://doi.org/10.5194/essd-2023-422
27 Nov 2023
 | 27 Nov 2023
Status: a revised version of this preprint was accepted for the journal ESSD and is expected to appear here in due course.

A hydrogeomorphic dataset for characterizing catchment hydrological behavior across the Tibetan Plateau

Yuhan Guo, Hongxing Zheng, Yuting Yang, Yanfang Sang, and Congcong Wen

Abstract. Hydrologic and geomorphic processes are intricately linked within the Earth system, jointly characterizing terrestrial hydrological behaviors and biogeochemical cycles across diverse temporal and spatial scales. The Tibetan Plateau provides an ideal setting for investigating the interactions between hydrological and geomorphic processes in a largely pristine natural environment. Nonetheless, the interactions remain largely unknown due to challenging physical conditions and data limitations. This study presents the inaugural version of a hydrogeomorphic dataset encompassing 18,440 catchments across the region. The dataset comprises 18 hydrogeomorphic metrics, particularly along with the width function and width function-based instantaneous unit hydrograph (WFIUH) of each catchment. We find that the peak flow of WFIUH is positively related to slope and curvature but negatively related to catchment area, perimeter, length, and circularity. The relationships of time-to-peak against the hydrogeomorphic metrics are similar to those of peak flow but in an oppositive direction. Catchment concentration time shows a positive relationship with catchment size but a strong negative correlation with catchment slope. The validity of the derived WFIUH has been confirmed by its successful integration into an hourly hydrological model for simulating flash flood events. Uncertainties in the WFIUH can be attributed to the resolution of DEM and the methods employed for calculating flow velocity. The dataset is publicly available via the Zenodo portal: https://zenodo.org/record/8280786 (Guo and Zheng, 2023). It can contribute to advancing our understanding of catchment hydrological behaviors in the Tibetan Plateau and hence improving water resources management and disaster mitigation in the region and its downstream.

Yuhan Guo, Hongxing Zheng, Yuting Yang, Yanfang Sang, and Congcong Wen

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2023-422', Polina Lemenkova, 07 Dec 2023
    • AC1: 'Reply on RC1', yuhan guo, 14 Dec 2023
  • RC2: 'Comment on essd-2023-422', Anonymous Referee #2, 12 Dec 2023
    • AC2: 'Reply on RC2', yuhan guo, 14 Dec 2023

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2023-422', Polina Lemenkova, 07 Dec 2023
    • AC1: 'Reply on RC1', yuhan guo, 14 Dec 2023
  • RC2: 'Comment on essd-2023-422', Anonymous Referee #2, 12 Dec 2023
    • AC2: 'Reply on RC2', yuhan guo, 14 Dec 2023
Yuhan Guo, Hongxing Zheng, Yuting Yang, Yanfang Sang, and Congcong Wen

Data sets

Hydro-geomorphic unit hydrograph dataset of catchments across the Tibetan Plateau Yuhan Guo, Hongxing Zheng https://zenodo.org/records/8280786

Yuhan Guo, Hongxing Zheng, Yuting Yang, Yanfang Sang, and Congcong Wen

Viewed

Total article views: 254 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
194 43 17 254 14 13 12
  • HTML: 194
  • PDF: 43
  • XML: 17
  • Total: 254
  • Supplement: 14
  • BibTeX: 13
  • EndNote: 12
Views and downloads (calculated since 27 Nov 2023)
Cumulative views and downloads (calculated since 27 Nov 2023)

Viewed (geographical distribution)

Total article views: 255 (including HTML, PDF, and XML) Thereof 255 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 04 Mar 2024
Download
Short summary
Our research has provided an inaugural version of the hydrogeomorphic dataset for catchments over the Tibetan Plateau. We first provide the WFIUH for each HydroBASINs catchment, which can be used to investigate the spatial heterogeneity of hydrological behavior across the Tibetan Plateau. It is expected to facilitate hydrological modeling across the Tibetan Plateau.
Altmetrics