FN Archimer Export Format PT J TI Results from the First Phase of the Seafloor Backscatter Processing Software Inter-Comparison Project BT AF Malik, Mashkoor Schimel, Alexandre C. G. Masetti, Giuseppe Roche, Marc Le Deunf, Julian Dolan, Margaret F.J. Beaudoin, Jonathan Augustin, Jean-Marie Hamilton, Travis Parnum, Iain AS 1:1,2;2:3;3:2;4:4;5:5;6:6;7:7;8:8;9:9;10:10; FF 1:;2:;3:;4:;5:;6:;7:;8:PDG-DFO-NSE-ASTI;9:;10:; C1 NOAA Office of Ocean Exploration and Research, Silver Spring, MD 20910, USA Center for Coastal and Ocean Mapping, University of New Hampshire, Durham, NH 03824, USA National Institute of Water and Atmospheric Research (NIWA), Greta Point, Wellington 6021, New Zealand Federal Public Service Economy of Belgium (FPSE), 1210 Brussels, Belgium Service Hydrographique et Océanographique de la Marine (SHOM), 29200 Brest, France Geological Survey of Norway (NGU), 7491 Trondheim, Norway QPS B.V. Fredericton, Fredericton, NB E3B 1P9, Canada Service Acoustique Sous-marine et Traitement de l’Information, IFREMER, 29280 Plouzane, France Teledyne CARIS, Fredericton, NB E3B 2L4, Canada Centre for Marine Science and Technology, Curtin University, Perth 2605, Australia C2 NOAA, USA UNIV NEW HAMPSHIRE, USA NIWA, NEW ZEALAND FED PUBL SERV ECON, BELGIUM SHOM, FRANCE GEOL SURVEY NORWAY, NORWAY QPS BV, CANADA IFREMER, FRANCE TELEDYNE CARIS, CANADA UNIV CURTIN, AUSTRALIA SI BREST SE PDG-DFO-NSE-ASTI IN WOS Ifremer UPR DOAJ copubli-france copubli-europe copubli-int-hors-europe TC 5 UR https://archimer.ifremer.fr/doc/00599/71133/69448.pdf LA English DT Article DE ;Acoustic backscatter processing;Multibeam Echo Sounders;seafloor mapping AB Seafloor backscatter mosaics are now routinely produced from multibeam echosounder data and used in a wide range of marine applications. However, large differences (>5 dB) can often be observed between the mosaics produced by different software packages processing the same dataset. Without transparency of the processing pipeline and the lack of consistency between software packages raises concerns about the validity of the final results. To recognize the source(s) of inconsistency between software, it is necessary to understand at which stage(s) of the data processing chain the differences become substantial. To this end, willing commercial and academic software developers were invited to generate intermediate processed backscatter results from a common dataset, for cross-comparison. The first phase of the study requested intermediate processed results consisting of two stages of the processing sequence: the one-value-per-beam level obtained after reading the raw data and the level obtained after radiometric corrections but before compensation of the angular dependence. Both of these intermediate results showed large differences between software solutions. This study explores the possible reasons for these differences and highlights the need for collaborative efforts between software developers and their users to improve the consistency and transparency of the backscatter data processing sequence PY 2019 PD DEC SO Geosciences SN 2076-3263 PU MDPI AG VL 9 IS 12 UT 000506643100030 DI 10.3390/geosciences9120516 ID 71133 ER EF