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Type: Journal article
Title: Observed trends in global indicators of mean and extreme streamflow
Author: Gudmundsson, L.
Leonard, M.
Do, H.X.
Westra, S.
Seneviratne, S.I.
Citation: Geophysical Research Letters, 2019; 46(2):756-766
Publisher: American Geophysical Union
Issue Date: 2019
ISSN: 0094-8276
Statement of
L. Gudmundsson, M. Leonard, H. X. Do, S. Westra, and S. I. Seneviratne
Abstract: This study investigates global changes in indicators of mean and extreme streamflow. The assessment is based on the Global Streamflow Indices and Metadata archive and focuses on time series of the annual minimum, the 10th, 50th, and 90th percentiles, the annual mean, and the annual maximum of daily streamflow. Trends are estimated using the Sen‐Theil slope, and the significance of mean regional trends is established through bootstrapping. Changes in the indices are often regionally consistent, showing that the entire flow distribution is moving either upward or downward. In addition, the analysis confirms the complex nature of hydrological change where drying in some regions (e.g., in the Mediterranean) is contrasted by wetting in other regions (e.g., North Asia). Observed changes are discussed in the context of previous results and with respect to model estimates of the impacts of anthropogenic climate change and human water management.
Description: Published online 23 JAN 2019
Rights: ©2018. The Authors. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
DOI: 10.1029/2018GL079725
Appears in Collections:Aurora harvest 8
Civil and Environmental Engineering publications

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