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Mapping groundwater discharge patterns using environmental tracers, Niaqunguk (Apex) River, Iqaluit, NU.
Abstract
Presentation of some of the preliminary results from our project that is part of the ArcticNet’s Water Security and Quality in a Changing Arctic program led by Queen’s University. We are looking at the impact of geomorphic controls on groundwater discharge patterns and thermal dynamics within the Niaqunguk (Apex) River watershed.
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Permafrost Hydrology systematically elucidates the roles of seasonally and perennially frozen ground on the distribution, storage and flow of water. Cold regions of the World are subject to mounting development which significantly affects the physical environment. Climate change, natural or human-induced, reinforces the impacts. Knowledge of surface and ground water processes operating in permafrost terrain is fundamental to planning, management and conservation. This book is an indispensable reference for libraries and researchers, an information source for practitioners, and a valuable text for training the next generations of cold region scientists and engineers. © Springer-Verlag Berlin Heidelberg 2012. All rights are reserved.
Summary1. The thermal regime of rivers plays an important role in the overall health of aquatic ecosystems, including water quality issues and the distribution of aquatic species within the river environment. Consequently, for conducting environmental impact assessments as well as for effective fisheries management, it is important to understand the thermal behaviour of rivers and related heat exchange processes.2. This study reviews the different river thermal processes responsible for water temperature variability on both the temporal (e.g. diel, daily, seasonal) and spatial scales, as well as providing information related to different water temperature models currently found in the literature.3. Water temperature models are generally classified into three groups: regression, stochastic and deterministic models. Deterministic models employ an energy budget approach to predict river water temperature, whereas regression and stochastic models generally rely on air to water temperature relationships.4. Water temperature variability can occur naturally or as a result of anthropogenic perturbations, such as thermal pollution, deforestation, flow modification and climate change. Literature information is provided on the thermal regime of rivers in relation to anthropogenic impacts and such information will contribute to the better protection of fish habitat and more efficient fisheries management.
(unpublished) Detailed surficial geology map for the area northeast of Iqaluit
- T Tremblay
Tremblay, T. (unpublished). Detailed surficial geology map for the area
northeast of Iqaluit. Canada-Nunavut Geoscience Office.
Identification et caractérisation de la contribution d'écoulements souterrains vers les eaux de surface durant la récession vers le débit de base d'une petite rivière Arctique
- G Chiasson-Poirier
Chiasson-Poirier, G. (Unpublished). Identification et caractérisation de
la contribution d'écoulements souterrains vers les eaux de surface
durant la récession vers le débit de base d'une petite rivière Arctique. (U. de Montréal, Ed.).
Detailed surficial geology map for the area northeast of Iqaluit. Canada-Nunavut Geoscience Office
- T Tremblay
Tremblay, T. (unpublished). Detailed surficial geology map for the area
northeast of Iqaluit. Canada-Nunavut Geoscience Office.