An Evaluation of Dissolved Oxygen Modelling of the Athabasca River and the Wapiti-Smoky River System
Title | An Evaluation of Dissolved Oxygen Modelling of the Athabasca River and the Wapiti-Smoky River System PDF eBook |
Author | Northern River Basins Study (Canada) |
Publisher | |
Pages | 0 |
Release | 1993 |
Genre | Water |
ISBN |
An Evaluation of Dissolved Oxygen Modelling of the Athabasca River and the Wapiti-Smoky River System
Title | An Evaluation of Dissolved Oxygen Modelling of the Athabasca River and the Wapiti-Smoky River System PDF eBook |
Author | Gary MacDonald |
Publisher | Edmonton, Alta : The Study |
Pages | 174 |
Release | 1993 |
Genre | Water |
ISBN |
An important component of an overall mutrients model for the northern river systems is the development of appropriate dissolved oxygen models. This study tries to assess the ability of the models (dissolved oxygen model DOSTOC) to predict observed conditions and to identify field research needs for model refinement.
A Review and Evaluation of Water Quality and Quantity Models Used by the Northern River Basins Study
Title | A Review and Evaluation of Water Quality and Quantity Models Used by the Northern River Basins Study PDF eBook |
Author | Edward McCauley |
Publisher | The Study |
Pages | 124 |
Release | 1997 |
Genre | Nature |
ISBN |
Summarizes the major modelling projects undertaken to model water quality in the Peace, Athabasca, and Slave river systems. The first section describes the scope of the problem of modelling water quality in large complex systems that are relatively oligotrophic, located at relatively high altitudes, and experience highly seasonal environmental fluctuations. It also provides a summary of the models used to predict key water quality variables. Section 2 gives a general overview of the utility and shortcomings of water quality models, with the goal of establishing key criteria for assessing the successes of models developed by the Northern River Basins Study (NRBS). Section 3 summarizes key findings of the NRBS models and evaluates the results against criteria outlined in section 2. Section 4 presents a series of recommendations for modelling dissolved oxygen, transport and fate of contaminants, and distribution of contaminants in the food chain, along with strategic suggestions for future work.
A Review of Dissolved Oxygen Modelling on the Athabasca River
Title | A Review of Dissolved Oxygen Modelling on the Athabasca River PDF eBook |
Author | Louis Schmittroth |
Publisher | |
Pages | 32 |
Release | 1989 |
Genre | Water |
ISBN |
Assessment and Validation of Modelling Under-ice Dissolved Oxygen Using DOSTOC, Athabasca River, 1988 to 1994
Title | Assessment and Validation of Modelling Under-ice Dissolved Oxygen Using DOSTOC, Athabasca River, 1988 to 1994 PDF eBook |
Author | Patricia A. Chambers |
Publisher | |
Pages | 220 |
Release | 1996 |
Genre | Science |
ISBN |
The aim of this study was to examine the existing model approach and to make recommendations for improved modelling of under-ice dissolved oxygen (DO) concentrations in the Athabasca River. Previous modelling efforts have involved using the DO simulation model DOSTOC, but discrepancies between observed and predicted DO concentrations for 1992 and 1993 highlighted the needs for a review and assessment of the modelling approaches used. This report reviews the structure of the DOSTOC model and input data used for modelling, then describes a stochastic run of the model using the best available values for input data and process rates, including revised rates and ratios for converting five-day biological oxygen demand (BOD) values to ultimate BOD values, measured values for sediment oxygen demand and sedimentation, and a temperature correction for pulp mill BOD decay rates. Simulation results indicate whether the model could predict DO for 1990-94 winters. Regression equations were also developed relating DO concentration to river distance.
Dissolved Oxygen Conditions and Fish Requirements in the Athabasca, Peace and Slave Rivers
Title | Dissolved Oxygen Conditions and Fish Requirements in the Athabasca, Peace and Slave Rivers PDF eBook |
Author | Patricia A. Chambers |
Publisher | |
Pages | 112 |
Release | 1996 |
Genre | Nature |
ISBN |
The NTBS was designed to address the ecological concerns about pulp mill expansion, and to increase scientific knowledge about environmental conditions [ecology, ecosystem sustainability, water pollution and control, habitat, effect on fish and fishing, etc.] in the major river systems of the north. The study's objectives were to gather and interpret sound scientific information about the basins, develop appropriate recommendations for basin management, and communicate effectively with the public. The government response report confirms the governments' commitment to ecosystem sustainability and to pollution control in northern rivers. First Nations and Metis aboriginal [native] peoples contributed significantly to the NRBS.
Proceedings of the Workshop on Environmental Aspects of River Ice
Title | Proceedings of the Workshop on Environmental Aspects of River Ice PDF eBook |
Author | National Hydrology Research Institute (Canada) |
Publisher | Saskatoon : National Hydrology Research Institute |
Pages | 420 |
Release | 1994 |
Genre | Ice on rivers, lakes, etc |
ISBN |
Proceedings of the workshop, covering the geomorphological, physical, and biological effects of river ice along with other environmental aspects.