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Ronny Berndtsson

Professor, Dep Director, MECW Dep Scientific Coordinator

Profile photo of Ronny Berndtsson

Catchment classification framework in hydrology: challenges and directions

Author

  • Bellie Sivakumar
  • V.P. Singh
  • Ronny Berndtsson
  • Shakera K. Khan

Summary, in English

The past few decades have witnessed the development of numerous catchment models, often with increasing structural complexity and mathematical sophistication. While such models have certainly provided a better understanding of catchments and associated processes, they are also often catchment-specific, region-specific, or process-specific. Serious concerns on this modeling trend have been increasingly raised in recent times and, consequently, the need for a generic catchment classification framework in hydrology has been emphasized. There have indeed been some attempts to advance the idea of such a classification framework. Such studies have investigated different ways of developing a framework, including river morphology, river regimes, hydroclimatic factors, landscape and land use parameters, hydrologic similarity indexes, hydrologic signatures, ecohydrologic factors, geostatistical properties, entropy, nonlinear and chaotic properties, data mining, and other relevant characteristics and methods. Although useful in their own ways, these studies are largely inadequate for a generic classification framework. In addition to the limitations that exist in each of the different forms, a coherent effort to bring these disparate forms together for a workable classification is also missing. This study highlights the challenges that the existing approaches pose in the development of a generic classification framework. It argues for an appropriate basis, a suitable methodology, and key components for such a framework. In particular, it discusses the vital role of system complexity as an appropriate basis for the classification framework and the potential of nonlinear dynamics, networks, and other modern concepts of complex systems science for assessing system complexity. The study also offers a three-step procedure for formulation and verification of a catchment classification framework.

Department/s

  • MECW: The Middle East in the Contemporary World
  • Centre for Advanced Middle Eastern Studies (CMES)
  • Division of Water Resources Engineering
  • LTH Profile Area: Water

Publishing year

2015

Language

English

Publication/Series

Journal of Hydrologic Engineering

Volume

20

Issue

1

Document type

Journal article

Publisher

American Society of Civil Engineers (ASCE)

Topic

  • Other Social Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1084-0699