gov.noaa.ncei.pad:NOAA-Navy-SanctSound_Sound_Propagation_Models eng; USA utf8 series Sound Propagation Models Project-Level Metadata NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2022-03-15 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) SanctSound Sound Propagation Models 2022-03-15 publication International DOI Foundation (IDF) 10.25921/cdxs-rt17 NOAA National Centers for Environmental Information NCEI Metadata ID: gov.noaa.ncei.pad:NOAA-Navy-SanctSound_Sound_Propagation_Models Tetyana Margolina U.S. Naval Postgraduate School principalInvestigator NOAA National Centers for Environmental Information publisher U.S. Naval Postgraduate School author The map shows the signal-to-noise ratio (SNR) calculated as the difference between predicted received level (RL) at the hydrophone and the wind-induced noise level (WN). The RL field is calculated as the difference between an assumed sound source level and transmission loss (TL), which is modeled using a Navy version of the range-dependent parabolic equations acoustic propagation model (1) and US Navy and NOAA environmental databases: High-Resolution ¼ degree Global Sea Surface Wind Speed and Climatology (NOAA); Bottom Sediment Type (Navy) BST database and Global Ocean Sediment Thickness Dataset (NOAA). Geoacoustic parameters are extracted from published sources (2). Range-dependent sound speed profiles along an acoustic propagation path are calculated from temperature and salinity climatological monthly means of the US Navy Generalized Digital Environmental Model (GDEM). The ocean bathymetry is based on the NAVOCEANO Digital Bathymetric Data Base, which has been merged with higher-resolution local bathymetry wherever available. The model runs along 360 radials to generate a pseudo-2D TL field within a predefined range from a single-frequency sound source fixed in space. Following the reciprocity principle, the TL field is interpreted as the transmission loss from moving sound sources within the predefined range from the fixed-position hydrophone (3). To estimate WN, the wind-induced noise spectrum level (NSL) at the sound source frequency is calculated from the 10 m wind speed monthly climatology using a Navy version of the Wenz curve. NSL is then converted to WN as a 1/3-octave band level centered at the sound source frequency. (1) Collins M.D., A split-step Padé solution for the parabolic equation method, Journal of the Acoustical Society of America 93, 1736 (1993); doi: 10.1121/1.406739. (2) Colosi, J.A., Sound Propagation through the Stochastic Ocean, Cambridge University Press, NY, 2016. (3) Margolina, T., Joseph, J.E., and B. L. Southall, "BRS Sound Exposure Modeling Tool: A system for planning, visualization and analysis" OCEANS 2018 MTS/IEEE Charleston, Charleston, SC, USA, 2018, pp. 1-4. doi: 10.1109/OCEANS.2018.8604911 The interpretation of the maps requires knowledge and expertise in underwater acoustic modeling and ocean acoustics. The propagation modeling results are not intended for use in scientific research or decision-making and management. This project received funding from the U.S. Navy. onGoing NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact Carrie Wall NOAA National Centers for Environmental Information NCEI Passive Acoustic Archive Lead pad.info@noaa.gov pointOfContact asNeeded https://www.ngdc.noaa.gov/mgg/pad/browse/CI04_PropModel_Jan_125Hz.png Sound propagation modeling result for the Channel Islands CI04 site in January for a source level of 185 dB, source depth of 10 m, source frequency of 125 Hz. Credit: Tetyana Margolina/NPS jpeg Earth Science > Oceans > Ocean Acoustics Earth Science > Oceans > Marine Environment Monitoring Earth Science > Oceans > Ocean Acoustics > Ambient Noise Earth Science > Biosphere > Aquatic Ecosystems Earth Science > Biosphere > Aquatic Ecosystems > Marine Habitat theme Global Change Master Directory (GCMD) Science Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Ocean > Pacific Ocean > Eastern Pacific Ocean Ocean > Atlantic Ocean > North Atlantic Ocean Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands Vertical Location > Water Column place Global Change Master Directory (GCMD) Location Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Models/Analyses > OBSERVATION BASED platform Global Change Master Directory (GCMD) Platform Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian SanctSound > NOAA-Navy Sanctuary Soundscape Monitoring Project project Global Change Master Directory (GCMD) Project Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Naval Postgraduate School DOD/USNAVY > U.S. Navy, U.S. Department of Defense DOC/NOAA/NOS/NMS > National Marine Sanctuaries, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions Cite as: Margolina, Tetyana. Naval Postgraduate School. Sound Propagation Models, SanctSound Data Products. NOAA National Centers for Environmental Information. https://doi.org/10.25921/cdxs-rt17. [access date] NOAA-Navy Sanctuary Soundscape Monitoring Project (SanctSound) Office of National Marine Sanctuaries sponsor U.S. Navy sponsor https://sanctuaries.noaa.gov/science/monitoring/sound/ Sound Monitoring NOAA and the U.S. Navy are working to better understand underwater sound within the National Marine Sanctuary System. For the next few years, these agencies will work with numerous scientific partners to study sound within seven national marine sanctuaries and one marine national monument, which includes waters off Hawai'i and the east and west coasts. Standardized acoustic measurements are used to assess sounds produced by marine animals, physical processes (e.g., wind and waves), and human activities. Collectively, this information will help NOAA and the Navy measure sound levels and baseline acoustic conditions in sanctuaries. This work is a continuation of ongoing Navy and NOAA monitoring and research, including efforts by the NOAA Office of National Marine Sanctuaries. information largerWorkCitation project eng; USA biota oceans -159.58653 -70.178607 20.807567 48.4905 sound propagatiom models(.nc) 1 Each sound propagation model output is specific to its input parameters, namely the amplitude and frequency of the sound pressure level and the depth in the water column for the modeled sound source. In addition, model results vary by time of year due to differences in oceanographic conditions that affect sound propagation. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. sound propagatiom models(.nc) Each sound propagation model output is specific to its input parameters, namely the amplitude and frequency of the sound pressure level and the depth in the water column for the modeled sound source. In addition, model results vary by time of year due to differences in oceanographic conditions that affect sound propagation. https://doi.org/10.25921/cdxs-rt17 HTTPS Metadata Landing Page information https://www.ngdc.noaa.gov/mgg/pad/ Passive Acoustic Data Site NCEI site providing more information on the passive acoustic data archive. information https://www.ncei.noaa.gov/maps/passive_acoustic_data/ Passive acoustic Data Map Viewer Interactive map viewer to allow discovery and access to passive acoustic data search https://console.cloud.google.com/storage/browser/noaa-passive-bioacoustic Google Cloud Storage Google Cloud Storage providing public access to passive acoustic data through the NOAA Big Data Project. download series Data quality was assessed through visual analysis and examination. The map shows the signal-to-noise ratio (SNR) calculated as the difference between predicted received level (RL) at the hydrophone and the wind-induced noise level (WN). The RL field is calculated as the difference between an assumed sound source level and transmission loss (TL), which is modeled using a Navy version of the range-dependent parabolic equations acoustic propagation model (1) and US Navy and NOAA environmental databases: High-Resolution ¼ degree Global Sea Surface Wind Speed and Climatology (NOAA); Bottom Sediment Type (Navy) BST database and Global Ocean Sediment Thickness Dataset (NOAA). Geoacoustic parameters are extracted from published sources (2). Range-dependent sound speed profiles along an acoustic propagation path are calculated from temperature and salinity climatological monthly means of the US Navy Generalized Digital Environmental Model (GDEM). The ocean bathymetry is based on the NAVOCEANO Digital Bathymetric Data Base, which has been merged with higher-resolution local bathymetry wherever available. The model runs along 360 radials to generate a pseudo-2D TL field within a predefined range from a single-frequency sound source fixed in space. Following the reciprocity principle, the TL field is interpreted as the transmission loss from moving sound sources within the predefined range from the fixed-position hydrophone (3). To estimate WN, the wind-induced noise spectrum level (NSL) at the sound source frequency is calculated from the 10 m wind speed monthly climatology using a Navy version of the Wenz curve. NSL is then converted to WN as a 1/3-octave band level centered at the sound source frequency. (1) Collins M.D., A split-step Padé solution for the parabolic equation method, Journal of the Acoustical Society of America 93, 1736 (1993); doi: 10.1121/1.406739. (2) Colosi, J.A., Sound Propagation through the Stochastic Ocean, Cambridge University Press, NY, 2016. (3) Margolina, T., Joseph, J.E., and B. L. Southall, "BRS Sound Exposure Modeling Tool: A system for planning, visualization and analysis" OCEANS 2018 MTS/IEEE Charleston, Charleston, SC, USA, 2018, pp. 1-4. doi: 10.1109/OCEANS.2018.8604911 asNeeded Based on the NCEI Collection Level Metadata Template v1.1 (https://data.noaa.gov/waf/templates/iso_u/xml/ncei_template-clean.xml).