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Application of a GIS-Based Hydrological Model to Predict Surface Wetness of Blanket Bogs by Francis Mackin; Raymond Flynn; Fernando Fernandez-Valverde is a Environmental Science article available to read on EtoBox.

What is Application of a GIS-Based Hydrological Model to Predict Surface Wetness of Blanket Bogs about?

Understanding hydrological processes operating on relatively intact blanket bogs provides a scientific basis for establishing achievable restoration targets for damaged sites. A GIS-based hydrological model, developed to assess restoration potential of Irish raised bogs, was adapted and applied to four relatively intact blanket bogs in Ireland. The Modified Flow Accumulation Capacity (MFAC) model utilised high-resolution topographic data to predict surface wetness, based on climatic conditions, contributing catchment and local surface slope. Modifications to MFAC parameters aimed to account for differences in hydrological processes between raised bogs and blanket bogs. Application of a climatic correction factor accounted for variations in effective rainfall between the four study sites, while monitoring of water table levels indicated a log-linear relationship between MFAC values and summer water table levels and range of water table fluctuations. Deviations from the observed relationship between MFAC and water table levels were associated with hydrological pressures, such as artificial drainage or the occurrence of subsurface macropores (peat pipes), which further lowered summer

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Author

Francis Mackin; Raymond Flynn; Fernando Fernandez-Valverde

Publisher

Springer Netherlands

Published

2024

Language

EN

Field

Environmental Science (Physical Sciences)