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Modelling uncertainty and variability in environmental systems.

Romanowicz, Renata J. and Macdonald, Ray (2005) Modelling uncertainty and variability in environmental systems. Acta Geophysica Polonica, 53 (4). pp. 401-417. ISSN 0001-5725

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Abstract

Scientists from different disciplines now routinely work together on com-plex, multi-interactive, geochemical and biochemical environmental processes and it has become necessary to define a common language that can be under-stood by all the relevant scientific community. This in turn will aid the transfer of expertise between scientists from different disciplines. This paper attempts to relate different modelling approaches dealing with uncertainty in environmental processes. The literature review is based on hydrological, geophysical and envi-ronmental risk modelling, but the conclusions are relevant to all scientists work-ing on environmental problems, which are almost invariably poorly defined. We argue that modelling of environmental processes should be stochastic rather than deterministic. After listing the basic definitions and possible sources of uncer-tainty in environmental models, we present the main approaches to the modelling of uncertainties in, and variability of, environmental processes. We propose a general methodology for dealing with uncertainty, using as an example aspects of uncertainty assessment in modelling of rainfall-flow process at a catchment scale.

Item Type: Article
Journal or Publication Title: Acta Geophysica Polonica
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 21274
Deposited By: ep_ss_importer
Deposited On: 08 Jan 2009 10:22
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:44
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/21274

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