@article {7549, title = {Mapping and Geomorphic Characterization of the Vast Cold-Water Coral Mounds of the Blake Plateau}, volume = {4(1)}, year = {2024}, month = {12 January 2024}, pages = {17-47}, publisher = {MDPI}, abstract = {

A coordinated multi-year ocean exploration campaign on the Blake Plateau offshore of the south-23 eastern U.S. has mapped what appears to be the most expansive cold-water coral (CWC) mound 24 province thus far discovered. Nearly continuous CWC mound features span an area up to 500 km 25 long and 110 km wide, with a core area of high density mounds up to 254 km long by 42 km wide. 26 This study synthesized bathymetric data from 31 multibeam sonar mapping surveys and generated 27 a standardized geomorphic classification of the region in order to delineate and quantify CWC 28 mound habitats and compare mound morphologies among subregions of the coral province. Based 29 on the multibeam bathymetry, a total of 83,908 individual peak features were delineated, providing 30 the first estimate of the overall number of potential CWC mounds mapped in the region to date. 31 Five geomorphic landform classes were mapped and quantified: peaks (411 km2), valleys (3,598 32 km2), ridges (3,642 km2), slopes (23,082 km2), and flats (102,848 km2). The complex geomorphology 33 of eight subregions was described qualitatively with geomorphic \“fingerprints\” (spatial patterns) 34 and quantitatively by measurements of mound density and vertical relief. This study demonstrated 35 the value of applying an objective automated terrain segmentation and classification approach to 36 geomorphic characterization of a highly complex CWC mound province. Manual delineation of 37 these features in a consistent repeatable way with a comparable level of detail would not have been 38 possible.

}, keywords = {automated, bathymetry, Blake Plateau, cold-water corals, Desmophyllum, geomorphology, Lophelia, mapping, multibeam sonar, Ocean exploration, reef}, doi = {https://doi.org/10.3390/geomatics4010002}, url = {https://www.mdpi.com/2673-7418/4/1/2}, author = {Derek Sowers and Larry A Mayer and Giuseppe Masetti and Erik Cordes and Ryan Gasbarro and Elizabeth Lobecker and Kasey Cantwell and Samuel Candio and Shannon Hoy and Mashkoor A Malik and Michael White and Matt Dornback} } @proceedings {6750, title = {Open Backscatter Toolchain (OpenBST) - A Community-Vetted Workflow for Backscatter Processing}, year = {2020}, month = {February 24-27}, address = {Quebec City, Quebec, Canada}, abstract = {

Seafloor acoustic backscatter collected by multibeam echosounders (MBES) is routinely used to generate products such as backscatter mosaics and angular response curves. However, the usability of backscatter products has been hindered by a lack of consistent outputs that may be the result of differences in sonar calibration, data collection and processing. The Open BackScatter Toolchain (OpenBST) project aims to mitigate discrepancies that arise from existing processing workflows by providing open-source, community-vetted processing algorithms for backscatter data. In this work, an example of the OpenBST approach was applied to the backscatter processing workflow for a popular multibeam echosounder, using a reference dataset recently collected in Portsmouth Harbor, NH. At each processing step, intermediate outputs are produced (and compared) using commonly adopted methodologies. Finally, an analysis of the relative relevance of selecting those methodologies at the various intermediate steps is presented.

}, keywords = {acoustic baskscatter, ocean mapping, open source, Seafloor Characterization}, doi = {https://dx.doi.org/10.13140/RG.2.2.19660.77442}, url = {https://www.conferium.com/OLM/Prg_Present.lasso?showevent=202}, author = {Michael Smith and Giuseppe Masetti and Larry A Mayer and Mashkoor A Malik and Augustin, Jean-Marie and Cyrille Poncelet and Ian Parnum} } @article {4898, title = {Technology: NOAA Ship Okeanos Explorer}, volume = {25}, year = {2012}, pages = {12-15}, keywords = {Ocean exploration}, url = {http://tos.org/oceanography/archive/25-1_supplement.pdf}, author = {Russel, Craig and Pinner, W. and D. Lovalvo and Skarke, Adam and Elizabeth Lobecker and Mashkoor A Malik and Nadeau, LT M.} } @article {, title = {More than the Bottom: Multibeam Sonars and Water-column Imaging}, year = {2010}, month = {Dec 13 - Dec 17}, pages = {1-1}, chapter = {Fall Meeting}, address = {San Francisco, CA, USA}, keywords = {Other}, author = {Larry A Mayer and Thomas C Weber and James V. Gardner and Mashkoor A Malik and Beaudoin, Jonathan and Doucet, Maurice} } @article {, title = {EM302 Multibeam Survey of the Sangihe-Talaud Region, North Sulawesi, Indonesia}, year = {2010}, month = {Dec 13 - Dec 17}, chapter = {Fall Meeting}, address = {San Francisco, CA, USA}, keywords = {Other}, author = {Elizabeth Lobecker and Mashkoor A Malik and Johnson, Joel and Margaret S Boettcher} } @article {, title = {Video Observations by Telepresence Reveal Two Types of Hydrothermal Venting on Kawio Barat Seamount}, year = {2010}, month = {Dec 13 - Dec 17}, chapter = {Fall Meeting}, address = {San Francisco, CA, USA}, keywords = {Other}, author = {Butterfield, D.A. and Holden, J.F. and Shank, T M and Tunnicliffe, V. and Sherrin, J. and Herrera, S. and Baker, E.T. and D. Lovalvo and Makarim, S and Mashkoor A Malik and Wirasantosa, S and Hammond, S} } @article {, title = {Gorda Ridge Revisited: the R/V Okeanos Explorer Conducts its First Hydrothermal Plume Survey}, year = {2010}, month = {Feb 22 - Feb 26}, chapter = {2010}, address = {Portland, OR, USA}, keywords = {Other}, author = {Walker, S L and Baker, E.T. and Mashkoor A Malik and Greene, R and Buck, N and Embley, R W and Merle, S G and Lupton, J E and Resing, J} } @article {, title = {Okeanos Explorer - Aligning Today{\textquoteright}s Technology to a New Paradigm of Ocean Exploration}, year = {2009}, month = {Apr 21 - Apr 24}, address = {Lisbon, Lisbon, Portugal}, keywords = {Other}, author = {Mashkoor A Malik and Weirich, J and Russel, Craig and Stuart, Elaine and Colleen Peters and Larry A Mayer and Andrew A. Armstrong} } @article {, title = {Physiography of the Eastern Mendocino Ridge, NE Pacific Ocean}, year = {2009}, month = {Dec 14 - Dec 18}, address = {San Francisco, CA, USA}, keywords = {Other}, author = {James V. Gardner and Mashkoor A Malik} } @proceedings {, title = {Advanced Mid-Water Tools for 4D Marine Data Fusion and Visualization}, year = {2009}, month = {Oct 26 - Oct 29}, address = {Biloxi, MS, USA}, keywords = {Other}, author = {Doucet, Maurice and Lindsay Gee and Thomas C Weber and Roland Arsenault and Larry A Mayer and Colin Ware and Mashkoor A Malik} } @article {, title = {Effects of a Large Fishing Closure on Benthic Communitites in the Western Gulf of Maine: Recovery from the Effects of Gillnets and Otter Trawls}, volume = {107}, number = {3}, year = {2009}, pages = {308-317}, publisher = {National Marine Fisheries Service Scientific Publications Office}, keywords = {Other}, author = {Raymond E Grizzle and Larry G Ward and Larry A Mayer and Mashkoor A Malik and Cooper, Andrew B and Abeels, Holly A and Jennifer K Greene and Brodeur, Melissa A and Rosenberg, Andrew A} } @article {2844, title = {Plume 1400 Meters High Discovered at the Seafloor off the Northern California Margin}, volume = {90}, number = {32}, year = {2009}, pages = {275-275}, publisher = {American Geophysical Union }, address = {Washington DC, Washington DC, USA}, keywords = {Other}, author = {James V. Gardner and Mashkoor A Malik and Walker, Sharon} } @proceedings {, title = {Assessing Bottom Gear Impact in the WGOM Closure Area: A Multifaceted Approach}, year = {2007}, month = {May 10 - May 11}, address = {Durham, NH, USA}, keywords = {Other}, author = {Mashkoor A Malik and Larry A Mayer} } @article {, title = {Investigation of Seabed Fishing Impacts on Benthic Structure using Multi-beam Sonar, Sidescan Sonar, and Video}, volume = {64}, year = {2007}, pages = {1053-1065}, publisher = {Elsevier}, address = {New York, NY, USA}, keywords = {Other}, author = {Mashkoor A Malik and Larry A Mayer} } @article {, title = {Effects of the Western Gulf of Maine Closure Area on Bottom Habitats: A Preliminary GIS-based Assessment}, year = {2006}, month = {Apr 11 - Apr 11}, chapter = {GIS and Ocean Mapping in Support of Fisheries Research and Managment Conference}, address = {Cambridge, MA, USA}, keywords = {Other}, author = {Raymond E Grizzle and Larry G Ward and Larry A Mayer and Cooper, Andrew B and Rosenberg, Andrew A and Brouder, M A and Jennifer K Greene and Abeels, Holly A and Mashkoor A Malik} } @proceedings {, title = {Detection of Bottom Fishing Impacts on Benthic Structure Using Multibeam Sonar, Side Scan Sonar, Video and Interactive 3-D GIS}, year = {2006}, month = {Apr 11 - Apr 11}, chapter = {GIS and Ocean Mapping in Support of Fisheries Research and Managment Conference}, address = {Cambridge, MA, USA}, keywords = {Other}, author = {Mashkoor A Malik and Larry A Mayer} } @proceedings {, title = {Field Verification of MBES Error Models}, year = {2005}, month = {Sep 12 - Sep 15}, pages = {0-0}, edition = {4th}, address = {Plymouth, Devon, UK}, keywords = {Other}, author = {Brian R Calder and Mashkoor A Malik} } @proceedings {, title = {Bottom fishing impacts on benthic structure using multibeam sonar, sidescan and video}, year = {2005}, month = {Mar 29 - Mar 31}, pages = {0-0}, address = {San Diego, CA, USA}, keywords = {Other}, author = {Mashkoor A Malik and Larry A Mayer} } @mastersthesis {1815, title = {Identification of Bottom Fishing Impacted Areas Using Multibeam Sonar and Videography}, year = {2005}, pages = {138}, keywords = {Other}, author = {Mashkoor A Malik} } @proceedings {, title = {Maintaining Intra-line Details in a Multi-line DEM}, year = {2003}, month = {Nov 17 - Nov 20}, pages = {0-0}, address = {St. Andrews, New Brunswick, Canada}, keywords = {Other}, author = {Huff, Lloyd C and Yuri Rzhanov and Glang, Gerd and Raymond, Rick and Mashkoor A Malik} }