A stochastic model of streamflow for urbanized basins
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In this article, the authors present two stochastic models, with different levels of complexity, that link the key physical features of urbanized basins with rainfall variability to determine the resulting flow duration curves.Abstract:
Given the critical role of the streamflow regime for instream, riparian, and floodplain ecosystem sustainability, modeling the long-term effect of urbanization on streamflow is important to predict possible changes in stream ecosystems. Since flow duration curves are largely used to characterize the streamflow regime and define indices for stream ecosystem health, we present two stochastic models, with different levels of complexity, that link the key physical features of urbanized basins with rainfall variability to determine the resulting flow duration curves. The two models are tested against 11 basins with various degrees of urban development, characterized by the percentage of impervious areas in the basin. Results show that the more complex model needs to be used to reproduce accurately the entire flow duration curve. The analysis performed suggests that the transformation of green (i.e., water used in evapotranspiration) to blue (i.e., streamflow) water in urbanized basins is an important long-term source of ecohydrological alteration. The modeling scheme also provides useful links between rainfall variability, urbanization levels, and some streamflow indices of high and low flows.read more
Citations
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Journal ArticleDOI
The Theory of Stochastic Processes. By D. R. Cox and H. D. Miller. Pp. x, 398. 70s. (Methuen)
Journal ArticleDOI
Emerging solutions to the water challenges of an urbanizing world
Tove A. Larsen,Sabine Hoffmann,Christoph Lüthi,Bernhard Truffer,Bernhard Truffer,Max Maurer,Max Maurer +6 more
TL;DR: There is an urgent need for major transdisciplinary efforts in research, policy, and practice to develop alternatives with implications for cities and aquatic ecosystems alike.
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Panta Rhei 2013-2015: Global perspectives on hydrology, society and change
Hilary McMillan,Hilary McMillan,Alberto Montanari,Christophe Cudennec,Hubert H. G. Savenije,Heidi Kreibich,Tobias Krueger,Junguo Liu,Alfonso Mejia,Anne Van Loon,Hafzullah Aksoy,Giuliano Di Baldassarre,Yan Huang,Dominc Mazvimavi,Magdalena Rogger,Bellie Sivakumar,Bellie Sivakumar,T. S. Bibikova,Attilo Castellarin,Yangbo Chen,David C. Finger,Alexander Gelfan,David M. Hannah,Arjen Ysbert Hoekstra,Hongyi Li,Shreedhar Maskey,Thibault Mathevet,Ana Mijic,Adrián Pedrozo Acuña,María José Polo,Victor Rosales,Paul Smith,Alberto Viglione,Veena Srinivasan,Elena Toth,Ronald van Nooyen,Jun Xia +36 more
TL;DR: The International Association of Hydrological Sciences (IAHS) launched the hydrological decade 2013-2022 with the theme "Panta Rhei: Change in Hydrology and Society" as discussed by the authors.
The Ecological Limits of Hydrologic Alteration (ELOHA): A Framework for Developing Regional Environmental Flow Standards
TL;DR: The ecological limits of hydrologic alteration (ELOHA) as mentioned in this paper is a framework for assessing environmental flow needs for many streams and rivers simultaneously to foster development and implementation of environmental flow standards at the regional scale.
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Predicting streamflow distributions and flow duration curves from landscape and climate
Behnam Doulatyari,Andrea Betterle,Andrea Betterle,Stefano M.M. Basso,Basudev Biswal,Mario Schirmer,Gianluca Botter +6 more
TL;DR: In this article, a physically-based analytic model of streamflow dynamics is combined with a set of water balance models and a geomorphological recession flow model in order to estimate streamflow probability distributions based on catchment-scale climatic and morphologic features.
References
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The River Continuum Concept
TL;DR: It is hypothesized that producer and consumer communities characteristic of a given river reach become established in harmony with the dynamic physical conditions of the channel.
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Handbook of Mathematical Functions with Formulas
TL;DR: The Handbook of Mathematical Functions with Formulas (HOFF-formulas) as mentioned in this paper is the most widely used handbook for mathematical functions with formulas, which includes the following:
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The Natural Flow Regime
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The theory of stochastic processes
David Cox,Hilton D. Miller +1 more
TL;DR: This book should be of interest to undergraduate and postgraduate students of probability theory.