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McQUINN, I.H., D. REID, L. BERGER, N. DINER, D. HEATLEY, I. HIGGINBOTTOM, L.N. ANDERSEN, O. LANGELAND, J.P. LAPIERRE, 2005. Description of the ICES HAC standard data exchange format, version 1.60. ICES Coop. Res. Rep., 278: 86 p .
The HAC standard format for the exchange of fisheries acoustics raw and edited data was adopted by the ICES-Fisheries Acoustics Science and Technology Working Group (WGFAST) in 1999. Since 2000, the ICES HAC Planning Group (PGHAC) has overseen modifications and additions to the format so that it would evolve to meet the needs of the international fisheries acoustics community. The present report is based on the original adopted version and consolidates into one document the various additions, modification, corrections and clarifications which have been vetted and accepted by the PGHAC in the intervening years and published in the ICES Annual Reports of the Planning Group on the HAC data exchange format. Through the work of the PGHAC, many improvements have been made to the format, including the correction of errors and imprecisions in previously described tuples, the clarification of rules and definitions for tuple syntax, for allocating tuple numbers and for software compliance and compatibility, the addition of new tuples containing information for a new generation of echosounders, for additional auxiliary sensors and for the complete series of generic tuples for data exchange. The work of the PGHAC and the evolution of the HAC standard format will continue after the publication of this document and future modifications will continue to be published in the HAC Planning Group Annual Reports.©2005 International Council for the Exploration of the Sea
SIMARD, Y., I. McQUINN, M. MONTMINY, C. LANG, C. STEVENS, F. GOULET, J.-P. LAPIERRE, J.-L. BEAULIEU, J. LANDRY, Y. SAMSON, M. GAGNÉ, 2000. CH2 : Canadian Hydroacoustic data analysis tool 2 user's manual (version 2.0). Can. Tech. Rep. Fish. Aquat. Sci., 2332, 123 p .
CH2 is the acronym for Canadian Hydroacoustic data analysis tool 2. It is a Windows 95 Multiple Document Interface (MDI) C++ application, developed by the Department of Fisheries and Oceans within the framework of the Data Analysis Tools (DAT) project of its National Hydroacoustic Program (NHP). It is dedicated to the display and processing of the standard HAC (Simard et al. 1997) multi-channel (multiple frequencies or beams) multi-echosounder acoustic data produced by the CH1 acquisition and real-time monitoring module (Simard et al. 1998). Data can originate from various analog or digital echosounders (e.g. Biosonics 102 type, Simrad EK500, or EY500). CH2 version 2.0 includes several editing TOOLS, to edit, eliminate, ignore, threshold, filter, or correct the raw HAC data, without erasing any original information. It also incorporates multi-channel classification tools, to partition the acoustic data into echo categories according to user decisions, and multi-channel echointegration capabilities for each echo category. The user can always track the various processing steps that have been applied to the original raw data. CH2 holds full undo and redo facilities for the various operations applied to the raw data. Edited files can be saved under the standard HAC format and contain the raw data plus the parameters of the editing/classification operations. The echointegration data are exported in ASCII text files that are directly usable by common data analysis or visualisation packages such as worksheets, statistical packages, and 2-D and 3-D mapping packages.
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