Clifford I Voss, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 78
Analytical solutions for benchmarking cold regions subsurface water flow and energy transport models: one-dimensional soil thaw with conduction and advection Analytical solutions for benchmarking cold regions subsurface water flow and energy transport models: one-dimensional soil thaw with conduction and advection
Numerous cold regions water flow and energy transport models have emerged in recent years. Dissimilarities often exist in their mathematical formulations and/or numerical solution techniques, but few analytical solutions exist for benchmarking flow and energy transport models that include pore water phase change. This paper presents a detailed derivation of the Lunardini solution, an...
Authors
Barret L. Kurylyk, Jeffrey M McKenzie, Kerry T. B. MacQuarrie, Clifford I. Voss
Climate change impacts on the temperature and magnitude of groundwater discharge from shallow, unconfined aquifers Climate change impacts on the temperature and magnitude of groundwater discharge from shallow, unconfined aquifers
Cold groundwater discharge to streams and rivers can provide critical thermal refuge for threatened salmonids and other aquatic species during warm summer periods. Climate change may influence groundwater temperature and flow rates, which may in turn impact riverine ecosystems. This study evaluates the potential impact of climate change on the timing, magnitude, and temperature of...
Authors
Barret L. Kurylyk, Kerry T.B MacQuarrie, Clifford I. Voss
New permafrost is forming around shrinking Arctic lakes, but will it last? New permafrost is forming around shrinking Arctic lakes, but will it last?
Widespread lake shrinkage in cold regions has been linked to climate warming and permafrost thaw. Permafrost aggradation, however, has been observed within the margins of recently receded lakes, in seeming contradiction of climate warming. Here permafrost aggradation dynamics are examined at Twelvemile Lake, a retreating lake in interior Alaska. Observations reveal patches of recently...
Authors
Martin A. Briggs, Michelle Ann Walvoord, Jeffrey M. McKenzie, Clifford I. Voss, Frederick D. Day-Lewis, John W. Lane
Water resources management in the Ganges Basin: a comparison of three strategies for conjunctive use of groundwater and surface water Water resources management in the Ganges Basin: a comparison of three strategies for conjunctive use of groundwater and surface water
The most difficult water resources management challenge in the Ganges Basin is the imbalance between water demand and seasonal availability. More than 80 % of the annual flow in the Ganges River occurs during the 4-month monsoon, resulting in widespread flooding. During the rest of the year, irrigation, navigation, and ecosystems suffer because of water scarcity. Storage of monsoonal...
Authors
Mahfuzur R. Khan, Clifford I. Voss, Winston Yu, Holly A. Michael
The transboundary non-renewable Nubian Aquifer System of Chad, Egypt, Libya and Sudan: Classical groundwater questions and parsimonious hydrogeologic analysis and modeling The transboundary non-renewable Nubian Aquifer System of Chad, Egypt, Libya and Sudan: Classical groundwater questions and parsimonious hydrogeologic analysis and modeling
Parsimonious groundwater modeling provides insight into hydrogeologic functioning of the Nubian Aquifer System (NAS), the world’s largest non-renewable groundwater system (belonging to Chad, Egypt, Libya, and Sudan). Classical groundwater-resource issues exist (magnitude and lateral extent of drawdown near pumping centers) with joint international management questions regarding...
Authors
Clifford I. Voss, Safaa M. Soliman
Brine intrusion by upconing for a high-level nuclear waste repository at Forsmark: Scoping calculations Brine intrusion by upconing for a high-level nuclear waste repository at Forsmark: Scoping calculations
SSM currently reviews a license application for a spent nuclear fuel repository that is proposed to be located at Forsmark, Sweden. The repository is to be situated at 500 m depth in the rock and copper canisters are deposited in holes excavated from the tunnel system. To protect the canisters they are surrounded by a bentonite clay buffer, which is to swell when getting in contact with...
Authors
Clifford I. Voss, Joel Geier, Georg Lindgren
Science and Products
Filter Total Items: 78
Analytical solutions for benchmarking cold regions subsurface water flow and energy transport models: one-dimensional soil thaw with conduction and advection Analytical solutions for benchmarking cold regions subsurface water flow and energy transport models: one-dimensional soil thaw with conduction and advection
Numerous cold regions water flow and energy transport models have emerged in recent years. Dissimilarities often exist in their mathematical formulations and/or numerical solution techniques, but few analytical solutions exist for benchmarking flow and energy transport models that include pore water phase change. This paper presents a detailed derivation of the Lunardini solution, an...
Authors
Barret L. Kurylyk, Jeffrey M McKenzie, Kerry T. B. MacQuarrie, Clifford I. Voss
Climate change impacts on the temperature and magnitude of groundwater discharge from shallow, unconfined aquifers Climate change impacts on the temperature and magnitude of groundwater discharge from shallow, unconfined aquifers
Cold groundwater discharge to streams and rivers can provide critical thermal refuge for threatened salmonids and other aquatic species during warm summer periods. Climate change may influence groundwater temperature and flow rates, which may in turn impact riverine ecosystems. This study evaluates the potential impact of climate change on the timing, magnitude, and temperature of...
Authors
Barret L. Kurylyk, Kerry T.B MacQuarrie, Clifford I. Voss
New permafrost is forming around shrinking Arctic lakes, but will it last? New permafrost is forming around shrinking Arctic lakes, but will it last?
Widespread lake shrinkage in cold regions has been linked to climate warming and permafrost thaw. Permafrost aggradation, however, has been observed within the margins of recently receded lakes, in seeming contradiction of climate warming. Here permafrost aggradation dynamics are examined at Twelvemile Lake, a retreating lake in interior Alaska. Observations reveal patches of recently...
Authors
Martin A. Briggs, Michelle Ann Walvoord, Jeffrey M. McKenzie, Clifford I. Voss, Frederick D. Day-Lewis, John W. Lane
Water resources management in the Ganges Basin: a comparison of three strategies for conjunctive use of groundwater and surface water Water resources management in the Ganges Basin: a comparison of three strategies for conjunctive use of groundwater and surface water
The most difficult water resources management challenge in the Ganges Basin is the imbalance between water demand and seasonal availability. More than 80 % of the annual flow in the Ganges River occurs during the 4-month monsoon, resulting in widespread flooding. During the rest of the year, irrigation, navigation, and ecosystems suffer because of water scarcity. Storage of monsoonal...
Authors
Mahfuzur R. Khan, Clifford I. Voss, Winston Yu, Holly A. Michael
The transboundary non-renewable Nubian Aquifer System of Chad, Egypt, Libya and Sudan: Classical groundwater questions and parsimonious hydrogeologic analysis and modeling The transboundary non-renewable Nubian Aquifer System of Chad, Egypt, Libya and Sudan: Classical groundwater questions and parsimonious hydrogeologic analysis and modeling
Parsimonious groundwater modeling provides insight into hydrogeologic functioning of the Nubian Aquifer System (NAS), the world’s largest non-renewable groundwater system (belonging to Chad, Egypt, Libya, and Sudan). Classical groundwater-resource issues exist (magnitude and lateral extent of drawdown near pumping centers) with joint international management questions regarding...
Authors
Clifford I. Voss, Safaa M. Soliman
Brine intrusion by upconing for a high-level nuclear waste repository at Forsmark: Scoping calculations Brine intrusion by upconing for a high-level nuclear waste repository at Forsmark: Scoping calculations
SSM currently reviews a license application for a spent nuclear fuel repository that is proposed to be located at Forsmark, Sweden. The repository is to be situated at 500 m depth in the rock and copper canisters are deposited in holes excavated from the tunnel system. To protect the canisters they are surrounded by a bentonite clay buffer, which is to swell when getting in contact with...
Authors
Clifford I. Voss, Joel Geier, Georg Lindgren