the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Climate-induced hydrologic change in the source region of the Yellow River: a new assessment including varying permafrost
Abstract. The source region of the Yellow River (SRYR) provides 35 % of the rivers annual discharge but is very sensitive to the climate change. The change in discharge from the SRYR has been attributed to both climatic and anthropogenic forces, and previous estimates of the impact of human activities on the change in discharge have been higher than 50 % of the total change. Considering the very low population density and limited land use change, this result is potentially inconsistent. Our study modifies the traditional Budyko separating approach to identify and quantify the climatic causes in discharge changes. Application of this new approach to the SRYR now highlights the role of the degrading permafrost, based on long-term observation data of the maximum frozen depth (MFD). Our results show that over the past half-century, the change in discharge in the SRYR was primarily controlled by climate change rather than local human activities. Increasing air temperature is generally a negative force on discharge whereas it also causes permafrost to degrade – a positive factor on discharge generation. Such conflicting effects enhance the uncertainty in assessments of the hydrological response to climate change in the SRYR.
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RC1: 'Review of Wu et al.', Anonymous Referee #1, 24 Feb 2018
- AC2: 'Reply to Referee #1', Pan Wu, 14 Apr 2018
- AC4: 'Revised Manuscript according to referee #1', Pan Wu, 22 Apr 2018
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RC2: 'Comments on "Climate-induced hydrologic change in the source region of the Yellow River: a new assessment including varying permafrost"', Anonymous Referee #2, 04 Mar 2018
- AC1: 'Rely to referee #2', Pan Wu, 14 Apr 2018
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RC3: 'Climate-induced hydrological change', Anonymous Referee #3, 22 Mar 2018
- AC3: 'Reply to Referee #3', Pan Wu, 15 Apr 2018
-
RC1: 'Review of Wu et al.', Anonymous Referee #1, 24 Feb 2018
- AC2: 'Reply to Referee #1', Pan Wu, 14 Apr 2018
- AC4: 'Revised Manuscript according to referee #1', Pan Wu, 22 Apr 2018
-
RC2: 'Comments on "Climate-induced hydrologic change in the source region of the Yellow River: a new assessment including varying permafrost"', Anonymous Referee #2, 04 Mar 2018
- AC1: 'Rely to referee #2', Pan Wu, 14 Apr 2018
-
RC3: 'Climate-induced hydrological change', Anonymous Referee #3, 22 Mar 2018
- AC3: 'Reply to Referee #3', Pan Wu, 15 Apr 2018
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Cited
5 citations as recorded by crossref.
- Variation characteristics of hydrological response to water conservancy construction in the Qinhe River Basin of the Loess Plateau, China P. Guo et al. 10.1002/hyp.14974
- A Modified ABCD Model with Temperature-Dependent Parameters for Cold Regions: Application to Reconstruct the Changing Runoff in the Headwater Catchment of the Golmud River, China X. Wang et al. 10.3390/w12061812
- Spatiotemporal Heterogeneity in Runoff Dynamics and Its Drivers in a Water Conservation Area of the Upper Yellow River Basin over the Past 35 Years B. Zeng et al. 10.3390/rs14153628
- Analysis of groundwater flow through low-latitude alpine permafrost by model simulation: a case study in the headwater area of Yellow River on the Qinghai-Tibet Plateau, China S. Gao et al. 10.1007/s10040-023-02597-7
- Modeling permafrost distribution over the river basins of Mongolia using remote sensing and analytical approaches M. Zorigt et al. 10.1007/s12665-020-09055-7