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Title: Adjusting lidar-derived digital terrain models in coastal marshes based on estimated aboveground biomass density

Journal Article · · Remote Sensing
DOI:https://doi.org/10.3390/rs70403507· OSTI ID:1213406
 [1];  [2];  [1];  [3]
  1. Univ. of Central Florida, Orlando, FL (United States)
  2. Louisiana State Univ., Baton Rouge, LA (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
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Digital elevation models (DEMs) derived from airborne lidar are traditionally unreliable in coastal salt marshes due to the inability of the laser to penetrate the dense grasses and reach the underlying soil. To that end, we present a novel processing methodology that uses ASTER Band 2 (visible red), an interferometric SAR (IfSAR) digital surface model, and lidar-derived canopy height to classify biomass density using both a three-class scheme (high, medium and low) and a two-class scheme (high and low). Elevation adjustments associated with these classes using both median and quartile approaches were applied to adjust lidar-derived elevation values closer to true bare earth elevation. The performance of the method was tested on 229 elevation points in the lower Apalachicola River Marsh. The two-class quartile-based adjusted DEM produced the best results, reducing the RMS error in elevation from 0.65 m to 0.40 m, a 38% improvement. The raw mean errors for the lidar DEM and the adjusted DEM were 0.61 ± 0.24 m and 0.32 ± 0.24 m, respectively, thereby reducing the high bias by approximately 49%.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1213406
Journal Information:
Remote Sensing, Vol. 7, Issue 4; ISSN 2072-4292
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 46 works
Citation information provided by
Web of Science

References (23)

The value of estuarine and coastal ecosystem services journal May 2011
Remote Sensing of Biomass, Leaf‐Area‐Index, and Chlorophyll a and b Content in the ACE Basin National Estuarine Research Reserve Using Sub‐meter Digital Camera Imagery journal September 2002
Centuries of Human-Driven Change in Salt Marsh Ecosystems journal January 2009
Global sea level linked to global temperature journal December 2009
Sea-Level Rise and Its Impact on Coastal Zones journal June 2010
Remote Sensing of Coastal Wetlands journal July 1986
Monitoring Pacific Coast salt Marshes Using Remote Sensing journal August 1997
Imaging Radar for Ecosystem Studies journal November 1995
The potential and challenge of remote sensing‐based biomass estimation journal April 2006
Forest variable estimation from fusion of SAR and multispectral optical data journal January 2002
Biomass measurements and relationships with Landsat‐7/ETM+ and JERS‐1/SAR data over Canada's western sub‐arctic and low arctic journal May 2009
Forest mapping and monitoring with interferometric synthetic aperture radar (InSAR) journal June 2001
Integration of airborne lidar and vegetation types derived from aerial photography for mapping aboveground live biomass journal June 2012
Topographic accuracy assessment of bare earth lidar-derived unstructured meshes journal February 2013
Accuracy assessment and correction of a LIDAR-derived salt marsh digital elevation model journal June 2012
Complexity of the flooding/drying process in an estuarine tidal-creek salt-marsh system: An application of FVCOM journal January 2008
Responses of Coastal Wetlands to Rising sea Level journal October 2002
Sea-Level Rise Impact on a Salt Marsh System of the Lower St. Johns River journal March 2013
On the significance of incorporating shoreline changes for evaluating coastal hydrodynamics under sea level rise scenarios journal September 2014
Dynamics of sea level rise and coastal flooding on a changing landscape: BILSKIE ET AL. journal February 2014
Vertical Accuracy and Use of Topographic LIDAR Data in Coastal Marshes journal November 2011
A comprehensive change detection method for updating the National Land Cover Database to circa 2011 journal May 2013
Forest mapping and monitoring with interferometric synthetic aperture radar (InSAR) journal June 2001

Cited By (17)

Tidal hydrodynamics under future sea level rise and coastal morphology in the Northern Gulf of Mexico: TIDAL HYDRODYNAMICS UNDER SEA LEVEL RISE journal May 2016
Dynamic simulation and numerical analysis of hurricane storm surge under sea level rise with geomorphologic changes along the northern Gulf of Mexico journal May 2016
Coastal wetland response to sea-level rise in a fluvial estuarine system: WETLAND RESPONSE TO SLR journal November 2016
Barriers to and opportunities for landward migration of coastal wetlands with sea-level rise journal August 2016
A review of plant-flow interactions on salt marshes: the importance of vegetation structure and plant mechanical characteristics: Salt marsh plant-flow interactions journal August 2015
Coastal wetland adaptation to sea level rise: Quantifying potential for landward migration and coastal squeeze journal May 2018
Advancing barrier island habitat mapping using landscape position information journal April 2019
Assessing coastal wetland vulnerability to sea-level rise along the northern Gulf of Mexico coast: Gaps and opportunities for developing a coordinated regional sampling network journal September 2017
Dynamic responses and implications to coastal wetlands and the surrounding regions under sea level rise journal October 2018
The Impact of Lidar Elevation Uncertainty on Mapping Intertidal Habitats on Barrier Islands journal December 2017
Modeling Barrier Island Habitats Using Landscape Position Information journal April 2019
A Methodology to Assess Land Use Development, Flooding, and Wetland Change as Indicators of Coastal Vulnerability journal September 2019
Adjusting Emergent Herbaceous Wetland Elevation with Object-Based Image Analysis, Random Forest and the 2016 NLCD journal October 2019
The Challenges of Remote Monitoring of Wetlands journal August 2015
Improving accuracy of LiDAR-derived digital terrain models for saltmarsh management journal February 2017
Impacts of historic morphology and sea level rise on tidal hydrodynamics in a microtidal estuary (Grand Bay, Mississippi) journal December 2015
Distribution Pattern of Red Fox (Vulpes vulpes) Dens and Spatial Relationships with Sea Turtle Nests, Recreation, and Environmental Characteristics journal June 2018

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Related Subjects

58 GEOSCIENCES
ASTER
biomass
IfSAR
lidar
salt marsh