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USDA Forest Service Remote Sensing Applications Center Forest Inventory and Analysis New Technology How is FIA integrating new technological developments such as remote sensing? Ken Brewer Washington Office
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FIA Strategic Plan: January 2007 New Technology: “Integrating new technology is critical to the efficient delivery of the FIA program.”
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New Technology: 1.Team with USGS to improve accuracy of National Land Cover Data (NLCD) forest cover mapping…..Technology partnership with Multi-Resolution Land Characterization Consortium (MRLC) for NLCD 2.Technology partnerships with National Aeronautics and Space Administration (NASA), National Oceanic and Atmospheric Administration (NOAA), and Natural Resources Conservation Service (NRCS)
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NLCD Tree Canopy Cover = Response developed by classifying Tree crown cover on high resolution Imagery for 3-4, 1-4 km 2 sampling chips per Landsat scene. Model developed using regression tree (random forest) algorithm Fig. from Homer et al. 2007 2001 General modeling approach
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FIA Data Use Rationale FIA is a fundamental component of Forest Service research. FIA is a data rich program Consistency between map based and plot based estimates FIA survey design is easily intensified
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NLCD Tree Canopy Cover = Response developed by photo Interpreting Tree crown cover on NAIP Imagery for ~4160 8100m 2 sampling chips per Landsat scene. Random forest algorithm K nearest neighbor imputation Support vector machines Example modelling techniques Fig. from Homer et al. 2007 2001 General modeling approach
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NLCD Pilot Study Areas 4x Intensity Photo-based Sample Locations 105 photo points to estimate % tree canopy cover for model development
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North American Forest Dynamics Project NASA funded project designed to characterize disturbance patterns and recovery rates of forests across the continent. Goal: Determine the role of forest dynamics in North American carbon balance Uses FIA data for validation and training
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Monitoring Trends in Burn Severity Project MTBS characterizes burn severity on all large fires in CONUS, AK, HI, PR –All ownerships –Historical (since 1984) –Landsat-based, 30m resolution Jointly implemented by USFS (RSAC) and USGS (EROS) Interagency sponsorship by WFLC FIA data used for estimates LandsatNBR Pre-fire Post-fire dNBR Burn Severity Fire Perimeter Difference
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Dimensions of Change TemporalSpatial
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MTLCC Workshop Recommendation Hierarchical approach using multiple datasets: –MODIS data –Landsat data –NAIP & DOQ data –FIA field data
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NASA-RSAC-FIA Inventory UAS Mission
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Automated Image Acquisition Yellow points = Plots Red points = Images
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High Resolution Imagery 16 Band Multi-spectral
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Takeoff Unsuccessful
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Questions? USDA Forest Service Remote Sensing Applications Center Forest Inventory and Analysis
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