Climatic variability and periodicity for upstream sub-basins of the yangtze river, China

Naveed Ahmed; Genxu Wang; Martijn J. Booij; Oluwafemi Adeyeri; Muhammad Zia-ur Rahman Hashmi; Shahid Ali; Sarfraz Munir

doi:10.3390/w12030842

Climatic variability and periodicity for upstream sub-basins of the yangtze river, China

Naveed Ahmed
, Genxu Wang^*
, Martijn J. Booij
, Oluwafemi Adeyeri
, Muhammad Zia-ur Rahman Hashmi
, Shahid Ali
, Sarfraz Munir

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

26 Citations (Scopus)

53 Downloads (CityUHK Scholars)

Abstract

The headwaters of the Yangtze River are located on the Qinghai Tibetan Plateau, which is affected by climate change. Here, treamflow trends for Tuotuohe and Zhimenda sub-basins and relations to temperature and precipitation trends during 1961-2015 were investigated. The modified Mann-Kendall trend test, Pettitt test, wavelet analysis, and multivariate correlation analysis was deployed for this purpose. The temperature and precipitation significantly increased for each sub-basin, and the temperature increase was more significant in Tuotuohe sub-basin as compared to the Zhimenda sub-basin. A statistically significant periodicity of 2-4 years was observed for both sub-basins in different time spans. Higher flow periodicities for Tuotuohe and Zhimenda sub-basin were found after 1991 and 2004, respectively, which indicates that these are the change years of trends in streamflows. The influence of temperature on streamflow is more substantial in Tuotuohe sub-basin, which will ultimately impact the melting of glaciers and snowmelt runoff in this sub-basin. Precipitation plays a more critical role in the Zhimenda streamflow. Precipitation and temperature changes in the headwaters of the Yangtze River will change the streamflow variability, which will ultimately impact the hydropower supply and water resources of the Yangtze Basin. This study contributes to the understanding of the dynamics of the hydrological cycle and may lead to better hydrologic system modeling for downstream water resource developments.

Original language	English
Article number	842
Journal	Water (Switzerland)
Volume	12
Issue number	3
Online published	17 Mar 2020
DOIs	https://doi.org/10.3390/w12030842
Publication status	Published - Mar 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 by the authors.

Funding

This work was supported by the Major Research Plan of the National Natural Science Foundation of China (91547203) and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA20050102). The first author would also like to express his sincere gratitude to the Chinese Academy of Sciences and TheWorld Academy of Sciences (CAS-TWAS) for providing fellowship for the doctoral degree (Awardee of 2017, CAS-TWAS President's Fellowship). Funding: This work was supported by the Major Research Plan of the National Natural Science Foundation of China (91547203) and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA20050102). The first author would also like to express his sincere gratitude to the Chinese Academy of Sciences and The World Academy of Sciences (CAS-TWAS) for providing fellowship for the doctoral degree (Awardee of 2017, CAS-TWAS President’s Fellowship).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 7 Affordable and Clean Energy
SDG 13 Climate Action

Research Keywords

Climate change
Mann kendall
Periodicity
Qinghai Tibet
Trend analysis
Wavelet
Yangtze River

Publisher's Copyright Statement

This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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Cite this

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title = "Climatic variability and periodicity for upstream sub-basins of the yangtze river, China",

abstract = "The headwaters of the Yangtze River are located on the Qinghai Tibetan Plateau, which is affected by climate change. Here, treamflow trends for Tuotuohe and Zhimenda sub-basins and relations to temperature and precipitation trends during 1961-2015 were investigated. The modified Mann-Kendall trend test, Pettitt test, wavelet analysis, and multivariate correlation analysis was deployed for this purpose. The temperature and precipitation significantly increased for each sub-basin, and the temperature increase was more significant in Tuotuohe sub-basin as compared to the Zhimenda sub-basin. A statistically significant periodicity of 2-4 years was observed for both sub-basins in different time spans. Higher flow periodicities for Tuotuohe and Zhimenda sub-basin were found after 1991 and 2004, respectively, which indicates that these are the change years of trends in streamflows. The influence of temperature on streamflow is more substantial in Tuotuohe sub-basin, which will ultimately impact the melting of glaciers and snowmelt runoff in this sub-basin. Precipitation plays a more critical role in the Zhimenda streamflow. Precipitation and temperature changes in the headwaters of the Yangtze River will change the streamflow variability, which will ultimately impact the hydropower supply and water resources of the Yangtze Basin. This study contributes to the understanding of the dynamics of the hydrological cycle and may lead to better hydrologic system modeling for downstream water resource developments.",

keywords = "Climate change, Mann kendall, Periodicity, Qinghai Tibet, Trend analysis, Wavelet, Yangtze River",

author = "Naveed Ahmed and Genxu Wang and Booij, \{Martijn J.\} and Oluwafemi Adeyeri and Hashmi, \{Muhammad Zia-ur Rahman\} and Shahid Ali and Sarfraz Munir",

note = "Publisher Copyright: {\textcopyright} 2020 by the authors.",

year = "2020",

month = mar,

doi = "10.3390/w12030842",

language = "English",

volume = "12",

journal = "Water (Switzerland)",

issn = "2073-4441",

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T1 - Climatic variability and periodicity for upstream sub-basins of the yangtze river, China

AU - Ahmed, Naveed

AU - Wang, Genxu

AU - Booij, Martijn J.

AU - Adeyeri, Oluwafemi

AU - Hashmi, Muhammad Zia-ur Rahman

AU - Ali, Shahid

AU - Munir, Sarfraz

PY - 2020/3

Y1 - 2020/3

N2 - The headwaters of the Yangtze River are located on the Qinghai Tibetan Plateau, which is affected by climate change. Here, treamflow trends for Tuotuohe and Zhimenda sub-basins and relations to temperature and precipitation trends during 1961-2015 were investigated. The modified Mann-Kendall trend test, Pettitt test, wavelet analysis, and multivariate correlation analysis was deployed for this purpose. The temperature and precipitation significantly increased for each sub-basin, and the temperature increase was more significant in Tuotuohe sub-basin as compared to the Zhimenda sub-basin. A statistically significant periodicity of 2-4 years was observed for both sub-basins in different time spans. Higher flow periodicities for Tuotuohe and Zhimenda sub-basin were found after 1991 and 2004, respectively, which indicates that these are the change years of trends in streamflows. The influence of temperature on streamflow is more substantial in Tuotuohe sub-basin, which will ultimately impact the melting of glaciers and snowmelt runoff in this sub-basin. Precipitation plays a more critical role in the Zhimenda streamflow. Precipitation and temperature changes in the headwaters of the Yangtze River will change the streamflow variability, which will ultimately impact the hydropower supply and water resources of the Yangtze Basin. This study contributes to the understanding of the dynamics of the hydrological cycle and may lead to better hydrologic system modeling for downstream water resource developments.

AB - The headwaters of the Yangtze River are located on the Qinghai Tibetan Plateau, which is affected by climate change. Here, treamflow trends for Tuotuohe and Zhimenda sub-basins and relations to temperature and precipitation trends during 1961-2015 were investigated. The modified Mann-Kendall trend test, Pettitt test, wavelet analysis, and multivariate correlation analysis was deployed for this purpose. The temperature and precipitation significantly increased for each sub-basin, and the temperature increase was more significant in Tuotuohe sub-basin as compared to the Zhimenda sub-basin. A statistically significant periodicity of 2-4 years was observed for both sub-basins in different time spans. Higher flow periodicities for Tuotuohe and Zhimenda sub-basin were found after 1991 and 2004, respectively, which indicates that these are the change years of trends in streamflows. The influence of temperature on streamflow is more substantial in Tuotuohe sub-basin, which will ultimately impact the melting of glaciers and snowmelt runoff in this sub-basin. Precipitation plays a more critical role in the Zhimenda streamflow. Precipitation and temperature changes in the headwaters of the Yangtze River will change the streamflow variability, which will ultimately impact the hydropower supply and water resources of the Yangtze Basin. This study contributes to the understanding of the dynamics of the hydrological cycle and may lead to better hydrologic system modeling for downstream water resource developments.

KW - Climate change

KW - Mann kendall

KW - Periodicity

KW - Qinghai Tibet

KW - Trend analysis

KW - Wavelet

KW - Yangtze River

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DO - 10.3390/w12030842

M3 - RGC 21 - Publication in refereed journal

AN - SCOPUS:85082671260

SN - 2073-4441

VL - 12

JO - Water (Switzerland)

JF - Water (Switzerland)

IS - 3

M1 - 842

ER -

Climatic variability and periodicity for upstream sub-basins of the yangtze river, China

Abstract

Bibliographical note

Funding

UN SDGs

Research Keywords

Publisher's Copyright Statement

Access Output

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