Publications

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2016
Norton, Ashley R, and Semme J Dijkstra. 2016. Observations Of Acoustic Backscatter And Current Velocity Above An Eelgrass Canopy Over Multiple Tidal Cycles. New England Estuarine Research Society Fall Meeting. New England Estuarine Research Society Fall Meeting.
PDF icon Norton_FallNEERSAbstract.pdf (97.52 KB)
2015
Norton, Ashley R, and Semme J Dijkstra. 2015. Detecting And Characterizing The Deep Edge And Canopy Height Of Eelgrass Beds Using A Multi-Beam Echosounder. Coastal And Estuarine Research Federation Biennial Conference. Coastal And Estuarine Research Federation Biennial Conference. Portland, OR.
Norton, Ashley R, and Semme J Dijkstra. 2015. Mapping And Measuring Eelgrass Beds With An Mb1 Sonar. Teledyne Marine Technology Workshop. Teledyne Marine Technology Workshop. San Diego, CA.
Norton, Ashley R, and Semme J Dijkstra. 2015. Mapping And Measuring Eelgrass With A Multi-Beam Sonar In The Great Bay Estuary, New Hampshire. 24Th Annual Zosterapalooza. 24Th Annual Zosterapalooza. Boston, MA: EPA District 1.
PDF icon 2015_03_21ZosterapaloozaPoster.pdf (2.98 MB)
2011
Beduhn, Tami, and Semme J Dijkstra. 2011. On The Horizon: Better Bottom Detection For Areas Of Sub-Aquatic Vegetation. U.s. Hydrographic Conference (Us Hydro). U.s. Hydrographic Conference (Us Hydro). Tampa, FL, USA.
PDF icon Beduhn_Dijkstra_2011_on_the_horizon_better_bottom_detection.pdf (1.7 MB)
Dijkstra, Semme J, and Andrew A Armstrong. 2011. Iho/fig/ica Category A Course Program Submission. Durham, NH, USA: Center for Coastal and Ocean Mapping/ Joint Hydrographic Center.
2005
Grizzle, Raymond E, Larry G Ward, J R Adams, Semme J Dijkstra, and Brian Smith. 2005. Mapping And Characterizing Oyster Reefs Using Acoustic Techniques, Underwater Videography And Quadrat Sampling. Benthic Habitats And The Effects Of Fishing. Benthic Habitats And The Effects Of Fishing. Bethesda, MD, USA: American Fisheries Society.
2004
Dijkstra, Semme J. 2004. Robust Characterization Of Shoals Lidar Signals For Bottom Segmentation And Classification: A Combined Parameter-Estimation And Curve Fitting Approach. American Society For Photogrammetry And Remote Sensing (Asprs). American Society For Photogrammetry And Remote Sensing (Asprs). Denver, CO, USA.
Elston, Gareth R, and Semme J Dijkstra. 2004. Waveform Characterization, Clustering And Segmentation Of Shoals. Joint Airborne Lidar Bathymetry Technical Center Of Expertise Coastal Mapping And Charting Workshop (Jalbtcx). Joint Airborne Lidar Bathymetry Technical Center Of Expertise Coastal Mapping And Charting Workshop (Jalbtcx). St. Andrews, New Brunswick, Canada.
Dijkstra, Semme J, and Gareth R Elston. 2004. Bottom Segmentation And Classification Using Expectation-Maximization Clustering Methods On Shoals Data. American Society For Photogrammetry And Remote Sensing (Asprs). American Society For Photogrammetry And Remote Sensing (Asprs). Denver, CO, USA.
Dijkstra, Semme J, and Gareth R Elston. 2004. Quantitative Inter-Channel Calibration Of Shoals Signals For Consistent Bottom Segmentation And Characterization. American Society For Photogrammetry And Remote Sensing (Asprs). American Society For Photogrammetry And Remote Sensing (Asprs). Denver, CO, USA.
Image icon Dijkstra_2004_ASPRS_Quantitative_inter-channel_calibration_SHOALS_signals_for_segmentation_and_characterization.jpg (1.46 MB)
2003
Monahan, Dave, J Chance, P Dare, Semme J Dijkstra, D Dodd, D Howden, J Richer, M Santos, David E Wells, and D Wiesenburg. 2003. Hydrographic Learning 24/7. U.s. Hydrographic Conference (Us Hydro). U.s. Hydrographic Conference (Us Hydro). Biloxi, MS, USA.
Grizzle, Raymond E, J R Adams, Semme J Dijkstra, Brian Smith, and R W Ward. 2003. Mapping And Characterizing Subtidal Oyster Reefs Using Acoustic Techniques, Underwater Videography And Quadrat Counts. Benthic Habitats And The Effects Of Fishing. Benthic Habitats And The Effects Of Fishing. Bethesda, MD, USA: American Fisheries Society.
2002
Dijkstra, Semme J, and S Intelmann. 2002. Mapping Benthic Habitat At Various Scales In The Olympic National Marine Sanctuary, Wa. National Shellfisheries Association (Nsa). National Shellfisheries Association (Nsa). New Orleans, LA, USA.
Dijkstra, Semme J, and Raymond E Grizzle. 2002. Automated Interpretation Of Sidescan And Single-Beam Sonar For Characterization And Mapping The Extent Of Subtidal Oyster Reefs. National Shellfisheries Association (Nsa). National Shellfisheries Association (Nsa). Mystic, CT, USA.
Wells, David E, J Richer, M Santos, P Dare, I Allen, D Wiesenburg, D Dodd, et al.. 2002. Open Access Learning At Sea. Canadian Hydrographic Conference (Chc). Canadian Hydrographic Conference (Chc). Toronto, Ontario, Canada.
2001
Adams, J R, Semme J Dijkstra, Raymond E Grizzle, J Nelson, and Larry G Ward. 2001. Comparison Of Acoustic Techniques, Videography, And Quadrant Sampling For Characterizing Subtidal Oyster Reefs. National Shellfisheries Association (Nsa). National Shellfisheries Association (Nsa). Mystic, CT, USA.
Dijkstra, Semme J. 2001. Seafloor Characterization Using Vertical Incidence Echosounders: A Study In Portsmouth Harbor And The Great Bay Estuary, New Hampshire. International Conference On High-Resolution Survey In Shallow Water (Hrssw). International Conference On High-Resolution Survey In Shallow Water (Hrssw). Portsmouth, NH, USA.