DRAFT Soundscape and Modeling Metadata Standard Version 2 Atlantic Deepwater Ecosystem Observatory Network (ADEON): An Integrated System Contract: M16PC00003 Jennifer Miksis-Olds Lead PI John Macri Program Manager 7 July 2017 Approvals: _________________________________ _ 7 July 2017___ Jennifer Miksis-Olds (Lead PI) Date _________________________________ __7 July 2017___ John Macri (PM) Date Soundscape and Modeling Metadata Standard Version: 2ND DRAFT Date: 7 July 2017 Ainslie, M.A., Miksis‐Olds, J.L., Martin, B., Heaney, K., de Jong, C.A.F., von Benda‐Beckman, A.M., and Lyons, A.P. 2017. ADEON Soundscape and Modeling Metadata Standard. Version 2.0 DRAFT. Technical report by TNO for ADEON Prime Contract No. M16PC00003. 1 Contents Contents .............................................................................................................................................. 2 Abbreviations ...................................................................................................................................... 4 1. Introduction .................................................................................................................................... 5 ADEON project ................................................................................................................................... 5 Objectives............................................................................................................................................ 5 ADEON project objectives ............................................................................................................... 5 ADEON Standardization objectives ................................................................................................. 5 Report structure and terminology ...................................................................................................... 6 2. What is a soundscape? ................................................................................................................... 6 Formal definition ............................................................................................................................. 6 Remarks on formal definition ......................................................................................................... 7 Requirements .................................................................................................................................. 7 3. Quantitative soundscape metrics ................................................................................................... 9 Statistics ............................................................................................................................................ 10 Arithmetic mean (AM) .................................................................................................................. 10 Geometric mean (GM) .................................................................................................................. 11 Cumulative distribution function .................................................................................................. 11 Measurements .................................................................................................................................. 12 Metrics .......................................................................................................................................... 12 Monthly and annual statistics of 1 d snapshots ........................................................................... 13 Daily, monthly and annual statistics of 1 min snapshots .............................................................. 13 Broadband quantities ................................................................................................................... 13 Spectral and temporal correlation functions ................................................................................ 13 Summary of measurement products ............................................................................................ 13 Predictions ........................................................................................................................................ 14 Metrics .......................................................................................................................................... 14 Spatial percentiles ......................................................................................................................... 14 Temporal correlation functions .................................................................................................... 15 Spatial correlation functions ......................................................................................................... 15 Summary of prediction products .................................................................................................. 15 Practical choices ................................................................................................................................ 15 Decidecade bands ......................................................................................................................... 15 Decade and multi‐decade bands .................................................................................................. 17 Duration of snapshots and analysis windows ............................................................................... 19 2 Conversion to local time ............................................................................................................... 20 Duty cycle ...................................................................................................................................... 21 Receiver depths ............................................................................................................................ 21 Combination of measurement and prediction products .............................................................. 21 4. Qualitative soundscape metrics .................................................................................................... 21 Geophysical sources .......................................................................................................................... 21 Biological sources .............................................................................................................................. 22 Man‐made sources ........................................................................................................................... 22 5. Reporting soundscape products ................................................................................................... 22 International Systems of Quantities (ISQ) ........................................................................................ 22 Coordinated Universal Time ............................................................................................................. 22 Reporting levels in decibels .............................................................................................................. 22 Reporting level percentiles ............................................................................................................... 23 6. Appendix 1 – Acoustical terminology (normative) ....................................................................... 24 General acoustical concepts and quantities ..................................................................................... 24 Spectra (Fourier transform pairs) ..................................................................................................... 29 Levels and other logarithmic quantities usually expressed in decibels ............................................ 29 Level of a power quantity ............................................................................................................. 29 Level of a field quantity ................................................................................................................. 29 Abbreviations .................................................................................................................................... 33 7. Appendix 2 – Non‐acoustical terminology (normative) ................................................................ 34 8. Appendix 3 – Galway Statement on Atlantic Ocean Cooperation (informative) .......................... 35 9. References .................................................................................................................................... 37 3 Abbreviations Non‐acoustical abbreviations are listed in Table 1. For acoustical abbreviations see Appendix 1 (Table 15). Table 1 – Non-acoustical abbreviations Abbreviation Meaning ADEON Atlantic Deepwater Ecosystem Observatory Network AIS Automatic Identification System (for shipping) ANSI American National Standards Institute BIPM International Bureau of Weights and Measures BOEM Bureau of Ocean Energy Management EC European Commission ESA Endangered Species Act EU European Union GES (MSFD) Good Environmental Status IEC International Electrotechnical Commission IEEE Institute of Electrical and Electronics Engineers IQOE International Quiet Ocean Experiment ISO International Organization for Standardization ISQ International System of Quantities IWC International Whaling Commission JASCO JASCO Applied Sciences MMPA Marine Mammal Protection Act MS (EU) Member State MSFD (EU) Marine Strategy Framework Directive