Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 4.936 IF 4.936
  • IF 5-year value: 5.615 IF 5-year
    5.615
  • CiteScore value: 4.94 CiteScore
    4.94
  • SNIP value: 1.612 SNIP 1.612
  • IPP value: 4.70 IPP 4.70
  • SJR value: 2.134 SJR 2.134
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 107 Scimago H
    index 107
  • h5-index value: 63 h5-index 63
Discussion papers
https://doi.org/10.5194/hess-2019-302
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-2019-302
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 17 Jun 2019

Research article | 17 Jun 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Hydrology and Earth System Sciences (HESS).

Quantifying streamflow and active groundwater storage in response to climate warming in an alpine catchment, upper Lhasa River

Lu Lin1,2, Man Gao3, Jintao Liu1,2, Jiarong Wang1,2, Shuhong Wang1,2, Xi Chen1,2,3, and Hu Liu4 Lu Lin et al.
  • 1State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, People’s Republic of China
  • 2College of Hydrology and Water Resources, Hohai University, Nanjing 210098, People’s Republic of China
  • 3Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, People’s Republic of China
  • 4Linze Inland River Basin Research Station, Chinese Ecosystem Research Network, Lanzhou 730000, People’s Republic of China

Abstract. Climate warming is changing streamflow regimes and groundwater storage in cold alpine regions. In this study, a headwater catchment named Yangbajain in the Lhasa River Basin is adopted as the study area for quantifying streamflow changes and active groundwater storage in response to climate warming. The changes in streamflow regimes and climate factors are evaluated based on hydro-meteorological observations from 1979 to 2013. The results show that annual streamflow increases significantly at a rate of about 12.30 mm/10a during this period. Through baseflow recession analysis, we also find that the estimated groundwater storage that is comparable with the GRACE data increases significantly at the rates of about 19.32 mm/10a during these years. The rising of air temperature is the main factor for the increase in streamflow and groundwater storage, which has led to a loss of over 25 % of the total glacier volume for half century in this catchment. Parallel comparisons with other sub-basins in the Lhasa River Basin reveal that the increased streamflow at the Yangbajain station is mainly fed by the accelerated glacier retreat rather than frozen ground degradation. However, the increase of active storage capacity is caused by frozen ground degradation, which can accommodate the increasing meltwater in the valley. The huge gap between the melt-derived runoff and the increased water volume in groundwater storage and streamflow suggests that more than 60 % of the total ablation of glaciers should be discharged downstream through deep fault. This study provides a perspective to clarify the impact of glacial retreat and frozen ground degradation on hydrological processes, which fundamentally affects the water supply and the mechanisms of streamflow generation and change.

Lu Lin et al.
Interactive discussion
Status: open (until 12 Aug 2019)
Status: open (until 12 Aug 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Lu Lin et al.
Lu Lin et al.
Viewed  
Total article views: 210 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
162 44 4 210 3 3
  • HTML: 162
  • PDF: 44
  • XML: 4
  • Total: 210
  • BibTeX: 3
  • EndNote: 3
Views and downloads (calculated since 17 Jun 2019)
Cumulative views and downloads (calculated since 17 Jun 2019)
Viewed (geographical distribution)  
Total article views: 165 (including HTML, PDF, and XML) Thereof 164 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 19 Jul 2019
Publications Copernicus
Download
Short summary
In the paper, recession flow analysis assuming nonlinearized outflow from aquifers into streams was used to quantify active groundwater storage in a headwater catchment with larger glacierization and large-scale frozen ground on the Tibetan Plateau, which provides a perspective to clarify the way of glacial retreat and frozen ground degradation on hydrological processes. We are very grateful to all editors and reviewers for their efforts to help us improve the quality of the manuscript.
In the paper, recession flow analysis assuming nonlinearized outflow from aquifers into streams...
Citation