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Cited by 522

The DOI matches its Crossref record; 149 of the 149 references it cites were found in a registry or an index.

Benchmarking observational uncertainties for hydrology: rainfall, river discharge and water quality

McMillan, Hilary, Krueger, Tobias, Freer, Jim·2012·Hydrological Processes

Abstract

This review and commentary sets out the need for authoritative and concise information on the expected error distributions and magnitudes in observational data. We discuss the necessary components of a benchmark of dominant data uncertainties and the recent developments in hydrology which increase the need for such guidance. We initiate the creation of a catalogue of accessible information on characteristics of data uncertainty for the key hydrological variables of rainfall, river discharge and water quality (suspended solids, phosphorus and nitrogen). This includes demonstration of how uncertainties can be quantified, summarizing current knowledge and the standard quantitative results available. In particular, synthesis of results from multiple studies allows conclusions to be drawn on factors which control the magnitude of data uncertainty and hence improves provision of prior guidance on those uncertainties. Rainfall uncertainties were found to be driven by spatial scale, whereas river discharge uncertainty was dominated by flow condition and gauging method. Water quality variables presented a more complex picture with many component errors. For all variables, it was easy to find examples where relative error magnitudes exceeded 40%. We consider how data uncertainties impact on the interpretation of catchment dynamics, model regionalization and model evaluation. In closing the review, we make recommendations for future research priorities in quantifying data uncertainty and highlight the need for an improved ‘culture of engagement’ with observational uncertainties. Copyright © 2012 John Wiley & Sons, Ltd.

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Metadata

Authors
McMillan, H., Krueger, T., & Freer, J.
Venue
Hydrological Processes
Publisher
Wiley
Published
2012-06-11
Volume
26
Issue
26
Pages
4078-4111
ISSN
  • 0885-6087 (ISSN-L)
  • 1099-1085
OpenAlex
W1514248671
Cited by
522
References
149
FWCI
21.81
Type
journal article
Language
en
Open access
closed

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