Abstract
Mathematical simulation models have long provided scientists with a useful tool for studying the complexities of natural systems, and streamwater acidification models are no exception. The Birkenes model (BIM) has been used in this research to investigate hydrological pathways through the use of long data sets covering a wide range of hydrological conditions and of information provided by conservative tracers such as {sup 18}O and Cl{sup -}. Addition of an automatic multi-signal calibration routine has enhanced this process and provided a mathematical tool which provides information on a model structure and parameter identifiability. Few simulation models have undergone so stringent an evaluation process as has the BIM. This indepth evaluation is necessary as it helps to test if the current model structure is capable of approximating natural processes. Without this evaluation, model results are open to considerable inaccuracies and errors. The results indicate that the BIM, although a gross simplification of natural processes, provides a reasonable estimate of streamwater concentrations from data inputs. Several weaknesses were identified particularly in sub-models dealing with such species as SO{sub 4} = and Al{sup 3+}. However, given its simplicity, the BIM can provide simulations for a wide range of chemical species. In addition, the
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Citation Formats
Stone, A.
Use of the Birkenes model to study the effects of stream and soil acidification.
Norway: N. p.,
1990.
Web.
Stone, A.
Use of the Birkenes model to study the effects of stream and soil acidification.
Norway.
Stone, A.
1990.
"Use of the Birkenes model to study the effects of stream and soil acidification."
Norway.
@misc{etde_10141448,
title = {Use of the Birkenes model to study the effects of stream and soil acidification}
author = {Stone, A}
abstractNote = {Mathematical simulation models have long provided scientists with a useful tool for studying the complexities of natural systems, and streamwater acidification models are no exception. The Birkenes model (BIM) has been used in this research to investigate hydrological pathways through the use of long data sets covering a wide range of hydrological conditions and of information provided by conservative tracers such as {sup 18}O and Cl{sup -}. Addition of an automatic multi-signal calibration routine has enhanced this process and provided a mathematical tool which provides information on a model structure and parameter identifiability. Few simulation models have undergone so stringent an evaluation process as has the BIM. This indepth evaluation is necessary as it helps to test if the current model structure is capable of approximating natural processes. Without this evaluation, model results are open to considerable inaccuracies and errors. The results indicate that the BIM, although a gross simplification of natural processes, provides a reasonable estimate of streamwater concentrations from data inputs. Several weaknesses were identified particularly in sub-models dealing with such species as SO{sub 4} = and Al{sup 3+}. However, given its simplicity, the BIM can provide simulations for a wide range of chemical species. In addition, the model has been evaluated using data from a catchment which is very chemically and physically different from Birkenes, providing information on the transferability of the model and the quality of the approximations of the inherent chemical processes. The simulations were effected with a modicum of success suggesting that the current model structure can provide useful information about and approximations of chemical processes under a variety of conditions.}
place = {Norway}
year = {1990}
month = {Dec}
}
title = {Use of the Birkenes model to study the effects of stream and soil acidification}
author = {Stone, A}
abstractNote = {Mathematical simulation models have long provided scientists with a useful tool for studying the complexities of natural systems, and streamwater acidification models are no exception. The Birkenes model (BIM) has been used in this research to investigate hydrological pathways through the use of long data sets covering a wide range of hydrological conditions and of information provided by conservative tracers such as {sup 18}O and Cl{sup -}. Addition of an automatic multi-signal calibration routine has enhanced this process and provided a mathematical tool which provides information on a model structure and parameter identifiability. Few simulation models have undergone so stringent an evaluation process as has the BIM. This indepth evaluation is necessary as it helps to test if the current model structure is capable of approximating natural processes. Without this evaluation, model results are open to considerable inaccuracies and errors. The results indicate that the BIM, although a gross simplification of natural processes, provides a reasonable estimate of streamwater concentrations from data inputs. Several weaknesses were identified particularly in sub-models dealing with such species as SO{sub 4} = and Al{sup 3+}. However, given its simplicity, the BIM can provide simulations for a wide range of chemical species. In addition, the model has been evaluated using data from a catchment which is very chemically and physically different from Birkenes, providing information on the transferability of the model and the quality of the approximations of the inherent chemical processes. The simulations were effected with a modicum of success suggesting that the current model structure can provide useful information about and approximations of chemical processes under a variety of conditions.}
place = {Norway}
year = {1990}
month = {Dec}
}