HYT0278-2019 English PDF
Basic dataStandard ID: HY/T 0278-2019 (HY/T0278-2019)Description (Translated English): Methods for in-situ measurement of acoustic properties in marine sediments Sector / Industry: Marine Industry Standard (Recommended) Word Count Estimation: 10,142 Quoted Standard: GB/T 12763.1; GB/T 12763.2; GB/T 12763.7; GB/T 12763.8 Regulation (derived from): Ministry of Natural Resources Announcement No. 57 of 2019 Summary: This standard specifies the in-situ measurement principle, measurement content, measurement procedure and measurement report of longitudinal wave sound velocity and sound attenuation coefficient in submarine sediments. This standard is applicable to the in-situ measurement of acoustic longitudinal wave characteristics of seabed sediments in ocean surveys. HYT0278-2019: Methods for in-situ measurement of acoustic properties in marine sediments---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Methods for in-situ measurement of acoustic properties in marine sediments ICS 07.060; 13.060.01 Z17 People's Republic of China Marine Industry Standard In-situ measurement method of acoustic characteristics of submarine sediments 2019-12-20 release 2020-02-01 Implementation Issued by the Ministry of Natural Resources of the People's Republic of China ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some content of this document may involve patents. Publication of this document The institution does not assume responsibility for identifying these patents. This standard was proposed by the Ministry of Natural Resources of the People's Republic of China. This standard is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283). This standard was drafted by. Second Institute of Oceanography, Ministry of Natural Resources, First Institute of Oceanography, Ministry of Natural Resources, Acoustic Research, Chinese Academy of Sciences Institute, National Marine Standards Measurement Center. The main drafters of this standard. Tao Chunhui, Li Guanbao, Zhou Jianping, Zhang Guosong, Wang Dong, Sui Jun, Kan Guangming, Deng Xianming, Wang Jingqiang, Meng Xiangmei. In-situ measurement method of acoustic characteristics of submarine sediments1 ScopeThis standard specifies the in-situ measurement principle, measurement content, measurement procedure and measurement of longitudinal wave sound velocity and sound attenuation coefficient in submarine sediments report. This standard is applicable to the in-situ measurement of acoustic longitudinal wave characteristics of seabed sediments in ocean surveys.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 12763.1 Marine Survey Specifications Part 1.General GB/T 12763.2 Marine Survey Specifications Part 2.Marine Hydrological Observation GB/T 12763.7 Marine Survey Specifications Part 7.Marine Survey Data Exchange GB/T 12763.8 Marine Survey Specifications Part 8.Marine Geological and Geophysical Survey3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Sediment acoustic properties acousticpropertiesinmarinesediments The propagation velocity and acoustic attenuation coefficient of longitudinal wave acoustic waves in sediments. 3.2 In-situ measurement Place the instrument on the seabed, the surrounding environment has not changed, and the temperature, pressure, and geotechnical conditions of the sediment on the seabed are kept to the greatest extent. A method of directly measuring the characteristics of sediments to avoid disturbances caused by sediments during sampling and handling of sediment samples. 3.3 Sediment velocity soundvelocityinsediments Vs(f) The propagation speed of longitudinal wave in sediment corresponding to frequency f. Note. The unit of sound velocity of sediment is expressed in meters per second (m/s). 3.4 Soundvelocityinseawater Vw(f) The propagation speed of longitudinal waves in seawater corresponding to frequency f. Note. The unit of sound velocity of seawater is expressed in meters per second (m/s). 3.5 Sound attenuation coefficient of sediments α(f) ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of HYT0278-2019_English be delivered?Answer: Upon your order, we will start to translate HYT0278-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically in 9 seconds (download/delivered in 9 seconds). 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