T8 Water balance - Use of balance measurements and/or calculations to GDE Toolbox vegetation determine whether and to what extent plant water use is dependent on groundwater uptake Stygofauna Techniques available to collect groundwater fauna GDE Toolbox T9 sampling T10 Evaluation of Analysis of the hydraulics of surface water groundwater GDE Toolbox – surface water interactions. The processes by which groundwater discharge – groundwater into surface water systems provides insight into the nature interactions of groundwater dependency in wetlands and baseflow river ecosystems T11 Environmental Environmental tracers are a naturally occurring physical or GDE Toolbox tracers chemical property of water, or any substance dissolved in water, that can be used to trace its flowpath. Analysis and interpretation of these properties of surface water and groundwater can be used to identify groundwater contribution to dependent ecosystems T12 Introduced Analysis of deliberately introduced hydrochemical tracers to GDE Toolbox tracers identify sources and surface water groundwater – mixing relationships NT4 Genetic/DNA Analysis of environmental DNA, or DNA collected from analysis captured stygofauna, to identify species present in an aquifer NT5 Literature Review existing journal articles and reports. Look up conservation status and endemism of ecosystems T13 Long-term Long-term observations of GDEs and the hydrologic GDE Toolbox observation of environment they exist within to establish ecosystem ecosystem responses to changes in water regime due to climatic response to and/or anthropogenic influences change T14 Numerical Construction of mathematical models to simulate GDE Toolbox groundwater groundwater flow systems modelling NT5 Remote sensing Use of vegetation greenness, wetness, land surface temperature to discriminate GDEs. Use of wetness index to delineate water bodies.
T8 Water balance - vegetation Use of balance measurements and/or calculations to determine whether and to what extent plant water use is dependent on groundwater uptake GDE Toolbox T9 Stygofauna sampling Techniques available to collect groundwater fauna GDE Toolbox T10 Evaluation of surface water – groundwater interactions Analysis of the hydraulics of surface water – groundwater interactions. The processes by which groundwater discharge into surface water systems provides insight into the nature of groundwater dependency in wetlands and baseflow river ecosystems GDE Toolbox T11 Environmental tracers Environmental tracers are a naturally occurring physical or chemical property of water, or any substance dissolved in water, that can be used to trace its flowpath. Analysis and interpretation of these properties of surface water and groundwater can be used to identify groundwater contribution to dependent ecosystems GDE Toolbox T12 Introduced tracers Analysis of deliberately introduced hydrochemical tracers to identify sources and surface water – groundwater mixing relationships GDE Toolbox NT4 Genetic/DNA analysis Analysis of environmental DNA, or DNA collected from captured stygofauna, to identify species present in an aquifer NT5 Literature Review existing journal articles and reports. Look up conservation status and endemism of ecosystems T13 Long-term observation of ecosystem response to change Long-term observations of GDEs and the hydrologic environment they exist within to establish ecosystem responses to changes in water regime due to climatic and/or anthropogenic influences GDE Toolbox T14 Numerical groundwater modelling Construction of mathematical models to simulate groundwater flow systems GDE Toolbox NT5 Remote sensing Use of vegetation greenness, wetness, land surface temperature to discriminate GDEs. Use of wetness index to delineate water bodies.
draft-iesc-explanatory-note-assessing-groundwater.docx