skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Organizing environmental flow frameworks to meet hydropower mitigation needs

Journal Article · · Environmental Management
 [1];  [2];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oklahoma State Univ., Stillwater, OK (United States)

The global recognition of the importance of natural flow regimes to sustain the ecological integrity of river systems has led to increased societal pressure on the hydropower industry to change plant operations to improve downstream aquatic ecosystems. However, a complete reinstatement of natural flow regimes is often unrealistic when balancing water needs for ecosystems, energy production, and other human uses. Thus, stakeholders must identify a prioritized subset of flow prescriptions that meet ecological objectives in light of realistic constraints. Yet, isolating aspects of flow regimes to restore downstream of hydropower facilities is among the greatest challenges of environmental flow science due, in part, to the sheer volume of available environmental flow tools in conjunction with complex negotiation-based regulatory procedures. Here, we propose an organizational framework that structures information and existing flow paradigms into a staged process that assists stakeholders in implementing environmental flows for hydropower facilities. The framework identifies areas where regulations fall short of the needed scientific process, and provide suggestions for stakeholders to ameliorate those situations through advanced preparation. We highlight the strengths of existing flow paradigms in their application to hydropower settings and suggest when and where tools are most applicable. In conclusion, our suggested framework increases the effectiveness and efficiency of the e-flow implementation process by rapidly establishing a knowledge base and decreasing uncertainty so more time can be devoted to filling knowledge gaps. As a result, the framework provides the structure for a coordinated research agenda to further the science of environmental flows related to hydropower environments.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1260072
Journal Information:
Environmental Management, Journal Name: Environmental Management; ISSN 0364-152X
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

References (75)

Bayesian network models for environmental flow decision making in the Daly River, Northern Territory, Australia: BAYESIAN NETWORK MODELS FOR e-FLOW DECISION-MAKING journal September 2010
Large-scale Flow Experiments for Managing River Systems journal December 2011
Macroinvertebrate Community Responses to Gravel Addition in a Southeastern Regulated River journal September 2013
Impoundments and the Decline of Freshwater Mussels: a Case Study of an Extinction Gradient journal August 1999
Application of the ELOHA Framework to Regulated Rivers in the Upper Tennessee River Basin: A Case Study journal April 2013
2014 Hydropower Market Report report April 2015
Instream flow assessments for regulated rivers in South Africa using the Building Block Methodology journal January 1998
A scenario-based holistic approach to environmental flow assessments for rivers journal January 2003
Thermal habitat assessment of alternative flow scenarios in a tailwater fishery journal January 2005
A Method for Assessing Hydrologic Alteration within Ecosystems journal August 1996
PHABSIM modelling of Atlantic salmon spawning habitat in an upland stream: testing the influence of habitat suitability indices on model output journal January 2005
An Index of Cumulative Disturbance to River Fish Habitats of the Conterminous United States from Landscape Anthropogenic Activities journal March 2011
Classifying Regional Variation in Thermal Regime Based on Stream Fish Community Patterns journal January 2003
How do low magnitudes of hydrologic alteration impact riverine fish populations and assemblage characteristics? journal April 2014
Modifying dam Operations to Restore Rivers: Ecological Responses to Tennessee River dam Mitigation journal June 2005
Isolating causal pathways between flow and fish in the regulated river hierarchy journal November 2015
Ecological Benefits of Reduced Hydrologic Connectivity in Intensively Developed Landscapes journal January 2010
Relating streamflow characteristics to specialized insectivores in the Tennessee River Valley: a regional approach journal December 2008
Determining the effects of dams on subdaily variation in river flows at a whole-basin scale journal November 2010
Effects of pulsed flows on nuisance periphyton growths in rivers: a mesocosm study journal December 2009
Fish community changes after minimum flow increase: testing quantitative predictions in the Rhone River at Pierre-Benite, France journal September 2006
Delineation and Evaluation of Hydrologic-Landscape Regions in the United States Using Geographic Information System Tools and Multivariate Statistical Analyses journal April 2004
Attributes of an alluvial river and their relation to water policy and management journal October 2000
Influence of dams and habitat condition on the distribution of redhorse (Moxostoma) species in the Grand River watershed, Ontario journal December 2006
The Natural Flow Regime journal December 1997
The use of Bayesian networks to guide investments in flow and catchment restoration for impaired river ecosystems: Guiding investments in river restoration journal January 2010
Optimizing river flows for salmon and energy report October 2012
Characterizing Sub-Daily Flow Regimes: Implications of Hydrologic Resolution on Ecohydrology Studies: SUB-DAILY STREAM FLOW METRICS journal May 2014
Ecological responses to altered flow regimes: a literature review to inform the science and management of environmental flows: Review of altered flow regimes journal January 2010
Effects of dam Impoundment on the Flood Regime of Natural Floodplain Communities in the Upper Connecticut River journal December 2002
Hydropeaking indicators for characterization of the Upper-Rhone River in Switzerland journal June 2010
PROFILE: Hungry Water: Effects of Dams and Gravel Mining on River Channels journal July 1997
Use of Dynamic Occupancy Models to Assess the Response of Darters (Teleostei: Percidae) to Varying Hydrothermal Conditions in a Southeastern United States Tailwater: DARTER PATCH DYNAMICS journal May 2014
Dam Design can Impede Adaptive Management of Environmental Flows: A Case Study from the Opuha Dam, New Zealand journal November 2012
A Presumptive Standard for Environmental flow Protection: Presumptive Standard for Environmental flow Protection journal March 2011
Alteration of streamflow magnitudes and potential ecological consequences: a multiregional assessment journal October 2010
How much water does a river need? journal February 1997
A collaborative and adaptive process for developing environmental flow recommendations journal January 2006
A Bayesian network approach to support environmental flow restoration decisions in the Yarra River, Australia journal February 2013
The ecological limits of hydrologic alteration (ELOHA): a new framework for developing regional environmental flow standards: Ecological limits of hydrologic alteration journal January 2010
Re-thinking environmental flows: from allocations and reserves to sustainability boundaries: RE-THINKING ENVIRONMENTAL FLOWS journal September 2009
Living with dams: managing the environmental impacts journal March 2009
A General Approach to Predicting Ecological Responses to Environmental Flows: Making Best Use of the Literature, Expert Knowledge, and Monitoring Data: PREDICTING ECOLOGICAL RESPONSES TO ENVIRONMENTAL FLOWS journal August 2014
Use of an integrated flow model to estimate ecologically relevant hydrologic characteristics at stream biomonitoring sites journal February 2008
Hydrogeomorphic Classification of Washington State Rivers to Support Emerging Environmental flow Management Strategies: Classification of Washington Rivers journal July 2011
Classification of US Hydropower Dams by their Modes of Operation: Hydropower Modes of Operation journal February 2016
Analyzing cause and effect in environmental assessments: using weighted evidence from the literature journal March 2012
Redundancy and the choice of hydrologic indices for characterizing streamflow regimes journal January 2003
Quantifying and generalizing hydrologic responses to dam regulation using a statistical modeling approach journal November 2014
Incorporating thermal regimes into environmental flows assessments: modifying dam operations to restore freshwater ecosystem integrity: Incorporating thermal regimes in environmental flows assessments journal January 2010
How Run-of-River Operation Affects Hydropower Generation and Value journal September 2007
A classification of natural rivers journal June 1994
A review of Bayesian belief networks in ecosystem service modelling journal August 2013
How do dams affect freshwater fish distributions in Japan? Statistical analysis of native and nonnative species with various life histories journal October 2007
A global perspective on environmental flow assessment: emerging trends in the development and application of environmental flow methodologies for rivers journal January 2003
Thinking outside the channel: Timing pulse flows to benefit salmon via indirect pathways journal February 2014
Fuzzy Rule-Based Modeling of Reservoir Operation journal July 1996
Downstream fish assemblage response to river impoundment varies with degree of hydrologic alteration journal February 2014
Backcasting the decline of a vulnerable Great Plains reproductive ecotype: identifying threats and conservation priorities journal October 2013
Analysis of Daily Peaking and Run-of-River Operations with Flow Variability Metrics, Considering Subdaily to Seasonal Time Scales journal July 2014
Instream flow needs in streams and rivers: the importance of understanding ecological dynamics journal August 2006
The Challenge of Providing Environmental flow Rules to Sustain River Ecosystems journal August 2006
Delineation of ecosystem regions journal July 1983
Review of Ecological Effects of Rapidly Varying Flows Downstream from Hydroelectric Facilities journal July 1985
An Evaluation of the Influence of Seasonal Base Flow and Geomorphic Stream Characteristics on Coastal Plain Stream Fish Assemblages journal January 2010
How Dams Vary and Why It Matters for the Emerging Science of Dam Removal journal January 2002
Responses of Native and Nonnative Fishes to Natural Flow Regime Mimicry in the San Juan River journal July 2004
A Review of Stream Restoration Techniques and a Hierarchical Strategy for Prioritizing Restoration in Pacific Northwest Watersheds journal February 2002
Global Review of the Physical and Biological Effectiveness of Stream Habitat Rehabilitation Techniques journal June 2008
Stochastic dynamic programming models for reservoir operation optimization journal November 1984
How Much Is Enough? The Recurrent Problem of Setting Measurable Objectives in Conservation journal January 2005
Instream Flow Regimens for Fish, Wildlife, Recreation and Related Environmental Resources journal July 1976
Recovery of a Warmwater Fish Assemblage after the Initiation of a Minimum-Flow Release Downstream from a Hydroelectric Dam journal November 1995
Reservoir‐System Simulation and Optimization Models journal July 1993
Reservoir Management and Operations Models: A State-of-the-Art Review journal December 1985

Cited By (1)

Avoiding Conflicts between Future Freshwater Algae Production and Water Scarcity in the United States at the Energy-Water Nexus journal April 2019