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Information - HS36 Spatial patterns and analysis for water quality modelling at the catchment scale (co-listed in BG)
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Event Information |
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The ability to predict the ecological impacts of land use management is fundamental for environmental assessment and planning. Good management of water resources necessitates both qualitative understanding and quantitative descriptions of the processes controlling these impacts. Numerous ecological and water quality models are available, which range from simple 'box-type' mass balance models to sophisticated process-based, distributed modelling systems. These models aim at providing adequate descriptions of hydrologic and biogeochemical processes and, thus, enabling the comprehensive assessment of the sensitivity of inputs and assumptions. A major challenge in accurately representing the related processes in a distributed sense on the catchment-scale is to identify catchment areas that currently, or potentially, contribute with high loads of nutrients or sediment to rivers and water bodies. This source apportionment may be achieved by means of field studies, spatial data analysis and/or model applications. A key question in this respect is how to delineate spatial units or landscape elements which are appropriate for a sufficiently accurate description of hydologic processes in water quality considerations.
This session invites contributions that examine the spatial distribution and connectivity of hydrologic and biogeochemical processes and variables which are relevant for water quality modelling. A focus on one or more of the following issues is especially welcome:
(i) Assessment of data requirements, acquisition and processing techniques of distributed data
(ii) Balancing model complexity with data availabilty and process understanding
(iii) Structuring model set-up for spatially distributed water quality models
(iv) Parameterisation of distributed water quality models
(v) Calibration and validation, assessment of uncertainty in water quality modelling
Papers are sought that explore innovative approaches to use of GIS as an integrated modelling environment in hydrology and water quality assessment, founded upon the spatial representation of hydrologic and biogeophysical processes. Studies across a range of spatial scales, from small agrarian-type catchments to large mixed-use catchments, and temporal scales, from 'event-based' to continuous simulations, are appropriate for this session.
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Preliminary List of Solicited Speakers |
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