Multiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices

Exploring the relations between streamflow and large-scale atmospheric circulation systems can assist in identifying potentially useful indicators for the modeling of hydrological processes. With the help of ensemble empirical mode decomposition and the wavelet analysis method, this research explore...

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Autores principales:	Jian Tang, Huiqun Cao
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	ensemble empirical mode decomposition large-scale atmospheric circulation indices streamflow three rivers headwater region wavelet analysis method Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/212aaa1e63ec4e5dac83d2e414b6d882
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id	oai:doaj.org-article:212aaa1e63ec4e5dac83d2e414b6d882
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spelling	oai:doaj.org-article:212aaa1e63ec4e5dac83d2e414b6d8822021-11-05T18:31:13ZMultiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices2040-22442408-935410.2166/wcc.2020.255https://doaj.org/article/212aaa1e63ec4e5dac83d2e414b6d8822021-03-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/2/521https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354Exploring the relations between streamflow and large-scale atmospheric circulation systems can assist in identifying potentially useful indicators for the modeling of hydrological processes. With the help of ensemble empirical mode decomposition and the wavelet analysis method, this research explored streamflow variations and its links to large-scale atmospheric circulation indices during 1960–2012 in the Three Rivers Headwater Region (TRHR). A steady increasing trend was detected in the streamflow of the source region of Yangtze River (SYR), and a steady decreasing trend was detected in the streamflow of the source region of Lancang River (SLR). The streamflow of the source region of Yellow River (SYeR) had an increasing trend in the early years of the study period and subsequently exhibited a decreasing trend. The Tibetan Plateau monsoon (TPM), Arctic Oscillation (AO), and South Asia monsoon (SAM) are the key factors influencing streamflow changes in the SYR, SYeR, and SLR, respectively. At interannual time-scale variation with the period of about 3–9 years, an antiphase relationship exists between SYR streamflow and TPM indices, while in-phase relationships are detected between SYeR (SLR) streamflow and AO (SAM) indices.Jian TangHuiqun CaoIWA Publishingarticleensemble empirical mode decompositionlarge-scale atmospheric circulation indicesstreamflowthree rivers headwater regionwavelet analysis methodEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 2, Pp 521-532 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ensemble empirical mode decomposition large-scale atmospheric circulation indices streamflow three rivers headwater region wavelet analysis method Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	ensemble empirical mode decomposition large-scale atmospheric circulation indices streamflow three rivers headwater region wavelet analysis method Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Jian Tang Huiqun Cao Multiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices
description	Exploring the relations between streamflow and large-scale atmospheric circulation systems can assist in identifying potentially useful indicators for the modeling of hydrological processes. With the help of ensemble empirical mode decomposition and the wavelet analysis method, this research explored streamflow variations and its links to large-scale atmospheric circulation indices during 1960–2012 in the Three Rivers Headwater Region (TRHR). A steady increasing trend was detected in the streamflow of the source region of Yangtze River (SYR), and a steady decreasing trend was detected in the streamflow of the source region of Lancang River (SLR). The streamflow of the source region of Yellow River (SYeR) had an increasing trend in the early years of the study period and subsequently exhibited a decreasing trend. The Tibetan Plateau monsoon (TPM), Arctic Oscillation (AO), and South Asia monsoon (SAM) are the key factors influencing streamflow changes in the SYR, SYeR, and SLR, respectively. At interannual time-scale variation with the period of about 3–9 years, an antiphase relationship exists between SYR streamflow and TPM indices, while in-phase relationships are detected between SYeR (SLR) streamflow and AO (SAM) indices.
format	article
author	Jian Tang Huiqun Cao
author_facet	Jian Tang Huiqun Cao
author_sort	Jian Tang
title	Multiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices
title_short	Multiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices
title_full	Multiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices
title_fullStr	Multiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices
title_full_unstemmed	Multiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices
title_sort	multiscale variability of streamflow in the three rivers headwater region, china, and links to large-scale atmospheric circulation indices
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/212aaa1e63ec4e5dac83d2e414b6d882
work_keys_str_mv	AT jiantang multiscalevariabilityofstreamflowinthethreeriversheadwaterregionchinaandlinkstolargescaleatmosphericcirculationindices AT huiquncao multiscalevariabilityofstreamflowinthethreeriversheadwaterregionchinaandlinkstolargescaleatmosphericcirculationindices
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Multiscale variability of streamflow in the Three Rivers Headwater Region, China, and links to large-scale atmospheric circulation indices

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