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Title: A spatially based area–time inundation index model developed to assess habitat opportunity in tidal–fluvial wetlands and restoration sites

Journal Article · · Ecological Engineering
 [1];  [1];  [1];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

The hydrodynamics of tidal wetland areas in the lower Columbia River floodplain and estuary directly affect habitat opportunity for endangered salmonid fishes. Physical and biological structures and functions in the system are directly affected by inundation patterns influenced by tidal cycles, hydropower operations, river discharge, upriver water withdrawals, climate, and physical barriers such as dikes, culverts, and tide gates. Ongoing ecosystem restoration efforts are intended to increase the opportunity for salmon to access beneficial habitats by hydrologically reconnecting main-stem river channels and diked areas within the historical floodplain. To address the need to evaluate habitat opportunity, a geographic information system-based Area-Time Inundation Index Model (ATIIM) was developed. Additionally, the ATIIM integrates in situ or modeled hourly water-surface elevation (WSE) data and advanced terrain processing of high-resolution elevation data. The ATIIM uses a spatially based wetted-area algorithm to determine site average bankfull elevation, two- and three-dimensional inundation extent, and other site metrics. Hydrological process metrics such as inundation frequency, duration, maximum area, and maximum frequency area can inform evaluation of proposed restoration sites; e.g., determine trade-offs between WSE and habitat opportunity, contrast alternative restoration designs, predict impacts of altered flow regimes, and estimate nutrient and biomass fluxes. In an adaptive management framework, this model can be used to provide standardized site comparisons and effectiveness monitoring of changes in the developmental trajectories of restoration sites. Overall, results are presented for 11 wetlands representative of tidal marshes, tidal forested wetlands, and restoration sites.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1203860
Report Number(s):
PNNL-SA-98413; 400403209
Journal Information:
Ecological Engineering, Vol. 82; ISSN 0925-8574
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (51)

Simplified two-dimensional numerical modelling of coastal flooding and example applications journal September 2005
Projected impacts of climate change on salmon habitat restoration journal April 2007
Restoring Rivers One Reach at a Time: Results from a Survey of U.S. River Restoration Practitioners journal September 2007
Basic Principles and Ecological Consequences of Altered Flow Regimes for Aquatic Biodiversity journal October 2002
Effects of Microtopography on Hydrology, Physicochemistry, and Vegetation in a Tidal Swamp of the Hudson River journal March 2011
Pool Spacing, Channel Morphology, and the Restoration of Tidal Forested Wetlands of the Columbia River, U.S.A. journal January 2009
Hydraulic geometry and microtopography of tidal freshwater forested wetlands and implications for restoration, Columbia River, U.S.A. journal January 2008
Multiscale Analysis of Restoration Priorities for Marine Shoreline Planning journal June 2009
A Levels-of-Evidence Approach for Assessing Cumulative Ecosystem Response to Estuary and River Restoration Programs journal March 2011
Validation of a new global 30-min drainage direction map journal February 2002
Fragmentation and Flow Regulation of River Systems in the Northern Third of the World journal November 1994
Hydrologic description of forested wetlands in northeastern New Jersey, USA—An urban/suburban region journal December 2003
Comparison of three individual tree crown detection methods journal June 2005
Species classification of individually segmented tree crowns in high-resolution aerial images using radiometric and morphologic image measures journal June 2004
A geomorphic monitoring and adaptive assessment framework to assess the effect of lowland floodplain river restoration on channel–floodplain sediment continuity journal January 2006
Water Use Optimization Toolset Project: Development and Demonstration Phase Draft Report report May 2014
Use of wetted perimeter in defining minimum environmental flows journal January 1998
Accuracy assessment and correction of a LIDAR-derived salt marsh digital elevation model journal June 2012
A new procedure for gridding elevation and stream line data with automatic removal of spurious pits journal April 1989
Circulation, density distribution and neap-spring transitions in the Columbia River Estuary journal January 1990
Tidal-Fluvial and Estuarine Processes in the Lower Columbia River: I. Along-Channel Water Level Variations, Pacific Ocean to Bonneville Dam journal June 2014
Impacts of Columbia River discharge on salmonid habitat: 2. Changes in shallow-water habitat journal January 2003
Plant Community Recovery following Restoration in Temporally Variable Riparian Wetlands journal January 2010
Geographic Variability in Salt Marsh Flooding Patterns may Affect Nursery Value for Fishery Species journal December 2011
Characterization of microtopography and its influence on vegetation patterns in created wetlands journal December 2007
Declining Mountain Snowpack in Western North America* journal January 2005
THE ECOLOGY OF INTERFACES:Riparian Zones journal November 1997
Developing a broader scientific foundation for river restoration: Columbia River food webs journal November 2012
The extraction of drainage networks from digital elevation data journal December 1984
Sustainable Floodplains Through Large-Scale Reconnection to Rivers journal December 2009
The Natural Flow Regime journal December 1997
TOWARD AN INTEGRATION OF LANDSCAPE AND FOOD WEB ECOLOGY:The Dynamics of Spatially Subsidized Food Webs journal November 1997
Raster modelling of coastal flooding from sea‐level rise journal February 2008
Effects of soot-induced snow albedo change on snowpack and hydrological cycle in western United States based on Weather Research and Forecasting chemistry and regional climate simulations journal January 2009
A global river routing network for use in hydrological modeling journal May 2000
The Role of GIS in Selecting Sites for Riparian Restoration Based on Hydrology and Land Use journal December 1997
Tidal Hydrodynamics in the Lower Columbia River Estuary through Depth Averaged Adaptive Hydraulics Modeling journal January 2014
Sedimentary geology of the Columbia River Estuary journal January 1990
Effects of an enhanced flood on riparian plants of the River Murray, South Australia journal December 2004
Tidal regime, salinity and salt marsh plant zonation journal January 2005
Ecological assessment criteria for restoring anadromous salmonid habitat in Pacific Northwest estuaries journal July 2000
Functional Equivalency Trajectories of the Restored Gog-Le-Hi-Te Estuarine Wetland journal February 1996
Carving and adaptive drainage enforcement of grid digital elevation models: CARVING AND ADAPTIVE DRAINAGE ENFORCEMENT OF GRID DEMS journal December 2003
A new method for the determination of flow directions and upslope areas in grid digital elevation models journal February 1997
Extraction of hydrological proximity measures from DEMs using parallel processing journal December 2011
A Spatial Modeling Approach to Identify Potential Butternut Restoration Sites in Mammoth Cave National Park journal June 2006
A Screening Procedure for Prioritizing Riparian Management journal January 2004
Riverine flood plains: present state and future trends journal September 2002
Determination of the drainage structure of a watershed using a digital elevation model and a digital river and lake network journal January 2001
World prospects for floodplain fisheries journal January 2008
Airborne Lidar and Integrated Technologies for Coastal Mapping and Nautical Charting journal September 2005