gov.noaa.nodc:0225430 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-10-03T13:11:48Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Mean flow and turbulence observations on reference and restored oyster reefs in Mosquito Lagoon - Florida from 2018-06-01 to 2018-11-15 (NCEI Accession 0225430) 2021-02-19 publication 2021-02-01 creation International DOI Foundation (IDF) 10.25921/f389-7q16 NOAA National Centers for Environmental Information gov.noaa.nodc:0225430 NCEI Archive Management System 0225430 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher David J. Cannon University of Michigan David.Cannon@ucf.edu resourceProvider University of Central Florida (UCF) https://www.ucf.edu/ HTTPS University of Central Florida (UCF) website Institution web page information resourceProvider David Cannon University of Central Florida (UCF) David.Cannon@ucf.edu https://www.ucf.edu/ HTTPS University of Central Florida (UCF) website Institution web page information collaborator Kelly Kibler University of Central Florida (UCF) kelly.kibler@ucf.edu https://www.ucf.edu/ HTTPS University of Central Florida (UCF) website Institution web page information principalInvestigator Vasileios Kitsikoudis University of Twente v.kitsikoudis@utwente.nl principalInvestigator Stephen Medeiros Embry-Riddle Aeronautical University MEDEIROS@erau.edu https://erau.edu/ HTTPS Embry-Riddle Aeronautical University website Institution web page information collaborator Linda Walters University of Central Florida (UCF) Linda.Walters@ucf.edu https://www.ucf.edu/ HTTPS University of Central Florida (UCF) website Institution web page information collaborator David Spiering dwspiering@gmail.com collaborator Barbara Nogueira collaborator Cannon, David Purdue University https://www.purdue.edu/ HTTPS Purdue University website Institution web page information author Kibler, Kelly author Kitsikoudis, Vasileios author Medeiros, Stephen author Walters, Linda author Spiering, David author Nogueira, Barbara author University of Central Florida (UCF) https://www.ucf.edu/ HTTPS University of Central Florida (UCF) website Institution web page information contributor tableDigital Hydrodynamic experiments were conducted on reference and restored oyster reefs in Mosquito Lagoon, Florida (USA) between June and November 2018. Measurements were collected on intact, degraded, and restored (restoration age: 6month, 2years, 4years) oyster reefs (Crassostrea virginica) to investigate differences in flow and turbulence characteristics related to restoration age. The dataset presented herein includes hydrodynamic observations (timeseries) from experiments conducted on five different oyster reefs (Reference, R-2017, R-2016, R-2014, Degraded), with measurements that include: (1) forcing characteristics (wave heights, water depths, wind speeds, channel velocities), (2) reef characteristics (oyster densities, solid volume fractions), and (3) near-bed flow and turbulence observations (flow speeds, turbulent energy, turbulent kinetic energy dissipation, shear production) from within and above the oyster canopy on sample reefs. Data are presented as timeseries (column vectors) in nine .txt files, with one file for each experiment. Data were collected to investigate differences in flow and turbulence characteristics related to restoration status and time since restoration. Observations were used to conclude that restored reefs can reach hydrodynamic similarity with historically intact reefs within 6 months of restoration. Funding Agency: Indian River Lagoon National Estuary Program Funding Agency: University of Central Florida Funding Agency: National Science Foundation completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0225430 Preview graphic PNG 0225430 NCEI ACCESSION NUMBER 2021-01-12 publication biological data OYSTER CONDITION INDICES WAVE DATA theme NODC DATA TYPES THESAURUS Acoustic Doppler Velocimeter (ADV) acoustic sensor anemometer pressure gauge instrument NODC INSTRUMENT TYPES THESAURUS biological in situ theme NODC OBSERVATION TYPES THESAURUS University of Central Florida dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of Central Florida dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coastal Waters of Florida place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication EARTH SCIENCE > BIOLOGICAL CLASSIFICATION EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > MOLLUSKS > BIVALVES > OYSTERS EARTH SCIENCE > OCEANS > OCEAN WAVES theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Crassostrea virginica Cross-shore current velocity measured on the reef Cross-shore depth-integrated channel velocity Oyster Oyster reefs Shear production (P) measured on each reef Streamwise (reef-parallel) current velocity measured on the reef Streamwise (reef-parallel) depth-integrated channel velocity Turbulent kinetic energy dissipation measured on each reef Turbulent velocity scale estimated for flows on each reef Vertical turbulent energy measured on the reef Vertical wave energy measured on the reef WaterLevel Wave height Wind speed theme Provider Data Types ACOUSTIC RECEIVERS ANEMOMETERS > ANEMOMETERS PRESSURE GAUGES instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Acoustic Doppler Velocimeter (ADV) Acoustic sensor Anemometer Aquadopp HR Profiler Davis Wind Speed and Direction Smart Sensor (Onset, S-WCF-M003) Nortek Aquadopp HR Profiler Nortek Vectrino Profiler (sample rate: 100Hz) Ocean Sensor Systems XB Pro Onset U20L-04 pressure logger Pressure gauge instrument Provider Instruments OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Mosquito Lagoon - Florida place Provider Place Names 89J66D Send2NCEI Submission Package ID accessLevel: Public otherRestrictions Cite as: Cannon, David; Kibler, Kelly; Kitsikoudis, Vasileios; Medeiros, Stephen; Walters, Linda; Spiering, David; Nogueira, Barbara (2021). Mean flow and turbulence observations on reference and restored oyster reefs in Mosquito Lagoon - Florida from 2018-06-01 to 2018-11-15 (NCEI Accession 0225430). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/f389-7q16. Accessed [date]. 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. Bricker, J. D., & Monismith, S. G. (2007). Spectral Wave–Turbulence Decomposition. Journal of Atmospheric and Oceanic Technology, 24(8), 1479–1487. https://doi.org/10.1175/jtech2066.1 2007-08-01 publication International DOI Foundation (IDF) https://doi.org/10.1175/jtech2066.1 https://doi.org/10.1175/jtech2066.1 HTTPS https://doi.org/10.1175/jtech2066.1 Journal Article information Bricker, Jeremy D. Department of Ocean and Resources Engineering, University of Hawaii at Manoa, Honolulu, Hawaii author Monismith, Stephen G. Environmental Fluid Mechanics and Hydrology, Department of Civil and Environmental Engineering, Stanford University, Stanford, California author American Meteorological Society publisher documentDigital Journal of Atmospheric and Oceanic Technology 24(8) ISSN 1520-0426, ISSN 0739-0572, pp. 1479-1487 crossReference sciencePaper Effects of oyster reef restoration on flow and turbulence characteristics 2021 publication Cannon, D. author Kibler, K. M. author Kitsikoudis, V. author Medeiros, S. author Walters, L.J. author Wiley publisher Limnology and Oceanography crossReference sciencePaper Dean, R. G., & Dalrymple, R. A. (1991). Water Wave Mechanics for Engineers and Scientists. In Advanced Series on Ocean Engineering. WORLD SCIENTIFIC. https://doi.org/10.1142/1232 1991-01 publication International DOI Foundation (IDF) https://doi.org/10.1142/1232 https://doi.org/10.1142/1232 HTTPS https://doi.org/10.1142/1232 Scientific Book information Dean, Robert G University of FloridaUSA author Dalrymple, Robert A University of DelawareUSA author WORLD SCIENTIFIC publisher documentDigital Advanced Series on Ocean Engineering ISBN 9789810204211, ISBN 9789812385512, ISSN 1793-074X crossReference sciencePaper Garvis, S. K., Sacks, P. E., & Walters, L. J. (2015). Formation, Movement, and Restoration of Dead Intertidal Oyster Reefs in Canaveral National Seashore and Mosquito Lagoon, Florida. Journal of Shellfish Research, 34(2), 251–258. https://doi.org/10.2983/035.034.0206 2015-08 publication International DOI Foundation (IDF) https://doi.org/10.2983/035.034.0206 https://doi.org/10.2983/035.034.0206 HTTPS https://doi.org/10.2983/035.034.0206 Journal Article information Garvis, Stephanie K. author Sacks, Paul E. author Walters, Linda J. author National Shellfisheries Association publisher documentDigital Journal of Shellfish Research 34(2) ISSN 0730-8000, ISSN 1943-6319, pp. 251-258 crossReference sciencePaper Goring, D. G., & Nikora, V. I. (2002). Despiking Acoustic Doppler Velocimeter Data. Journal of Hydraulic Engineering, 128(1), 117–126. https://doi.org/10.1061/(asce)0733-9429(2002)128:1(117) 2002-01 publication International DOI Foundation (IDF) https://doi.org/10.1061/(asce)0733-9429(2002)128:1(117) https://doi.org/10.1061/(asce)0733-9429(2002)128:1(117) HTTPS https://doi.org/10.1061/(asce)0733-9429(2002)128:1(117) Technical Notes information Goring, Derek G. Princ. Sci., National Institute of Water and Atmospheric Research, P.O. Box 8602, Christchurch, New Zealand. author Nikora, Vladimir I. Princ. Sci., National Institute of Water and Atmospheric Research, P.O. Box 8602, Christchurch, New Zealand. author American Society of Civil Engineers (ASCE) publisher documentDigital J. Hydraul. Eng. 128(1) ISSN 0733-9429, ISSN 1943-7900, pp. 117-126 crossReference sciencePaper Scannell, B. D., Rippeth, T. P., Simpson, J. H., Polton, J. A., & Hopkins, J. E. (2017). Correcting Surface Wave Bias in Structure Function Estimates of Turbulent Kinetic Energy Dissipation Rate. Journal of Atmospheric and Oceanic Technology, 34(10), 2257–2273. https://doi.org/10.1175/jtech-d-17-0059.1 2017-10 publication International DOI Foundation (IDF) https://doi.org/10.1175/jtech-d-17-0059.1 https://doi.org/10.1175/jtech-d-17-0059.1 HTTPS https://doi.org/10.1175/jtech-d-17-0059.1 Journal Article information Scannell, Brian D. School of Ocean Sciences, Bangor University, Menai Bridge, Isle of Anglesey, United Kingdom author Rippeth, Tom P. School of Ocean Sciences, Bangor University, Menai Bridge, Isle of Anglesey, United Kingdom author Simpson, John H. School of Ocean Sciences, Bangor University, Menai Bridge, Isle of Anglesey, United Kingdom author Polton, Jeff A. National Oceanography Centre, Liverpool, United Kingdom author Hopkins, Joanne E. National Oceanography Centre, Liverpool, United Kingdom author American Meteorological Society publisher documentDigital Journal of Atmospheric and Oceanic Technology 34(10) ISSN 0739-0572, ISSN 1520-0426, pp. 2257-2273 crossReference sciencePaper Thomas, R. E., Schindfessel, L., McLelland, S. J., Creëlle, S., & De Mulder, T. (2017). Bias in mean velocities and noise in variances and covariances measured using a multistatic acoustic profiler: the Nortek Vectrino Profiler. Measurement Science and Technology, 28(7), 075302. https://doi.org/10.1088/1361-6501/aa7273 2017-06-19 publication International DOI Foundation (IDF) https://doi.org/10.1088/1361-6501/aa7273 https://doi.org/10.1088/1361-6501/aa7273 HTTPS https://doi.org/10.1088/1361-6501/aa7273 Journal Article information Thomas, R E author Schindfessel, L author McLelland, S J author Creëlle, S author De Mulder, T author IOP Publishing publisher documentDigital Meas. Sci. Technol. 28(7) ISSN 0957-0233, ISSN 1361-6501, p. 075302 crossReference sciencePaper Wahl, T. L. (2003). Discussion of “Despiking Acoustic Doppler Velocimeter Data” by Derek G. Goring and Vladimir I. Nikora. Journal of Hydraulic Engineering, 129(6), 484–487. https://doi.org/10.1061/(asce)0733-9429(2003)129:6(484) 2003-06 publication International DOI Foundation (IDF) https://doi.org/10.1061/(asce)0733-9429(2003)129:6(484) https://doi.org/10.1061/(asce)0733-9429(2003)129:6(484) HTTPS https://doi.org/10.1061/(asce)0733-9429(2003)129:6(484) Discussions and Closures information Wahl, Tony L. Hydraulic Engineer, U.S. Dept. of the Interior, Bureau of Reclamation, Water Resources Research Laboratory, Mail Code D-8560, P.O. Box 25007, Denver, CO 80225-0007. author American Society of Civil Engineers (ASCE) publisher documentDigital J. Hydraul. Eng. 129(6) ISSN 0733-9429, ISSN 1943-7900, pp. 484-487 crossReference sciencePaper eng; USA utf8 environment oceans -80.8818592 -80.853219 28.9441793 28.9697033 2018-06-01 2018-11-15 Data description: This dataset includes observations collected during nine total experiments on five different reefs (Reference, R-2017, R-2016, R-2014, Degraded). Data are presented as timeseries (column vectors) in .txt files, with one file for each experiment. Experiments were conducted both above the canopy (“_High”) and within the canopy near the bed (“_Low”) for each live reef (Reference, R-2017, R-2016, R-2014), while only a single near-bed experiment was conducted at the Degraded reef. Below, we describe the contents of each file, including variable definitions (Table 2) and sample site characteristics. Additional information on canopy characteristics and solid volume fractions associated with each reef can be found in Table 1 and Figure 2, while Figure 1 shows the relative locations of each reef. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact 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. ASCII TEXT Microsoft Word 3.412 https://doi.org/10.25921/f389-7q16 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/225430 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/225430 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0169/0225430/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0225430 v1.1 was published. 2021-02-19T22:01:39Z NCEI Accession 0225430 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0225430/1.1 HTTPS NCEI Accession 0225430 v1.1 published 2021-02-19T22:01:39Z download dataset Parameter or Variable: datetime (measured); Units: N/A; Observation Category: in situ; Sampling Instrument: N/A; Sampling and Analyzing Method: Datetime vector referenced to GMT time zone. Format: DD-MMM-YYYY HH:mm:ss; Data Quality Method: All data have been calculated from or averaged over 120s time series. Values in datetime represent the averaged or centered collection time. Parameter or Variable: WaterLevel_cm (measured); Units: cm; Observation Category: in situ; Sampling Instrument: pressure gauge; Sampling and Analyzing Method: Depth of water above the reef measured near the Vectrino profiler on the reef. Absolute pressure measured with Onset U20L-04 pressure logger. Pressures converted to water depths after subtracting atmospheric pressure. Parameter or Variable: WindSpeed_ms (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: anemometer; Sampling and Analyzing Method: Wind speed measured in the channel. Directly measured w/ Davis Wind Speed and Direction Smart Sensor (Onset, S-WCF-M003) Parameter or Variable: WaveHeight_cm (calculated); Units: cm; Observation Category: in situ; Sampling Instrument: acoustic sensor; Sampling and Analyzing Method: Significant wave height measured above the reef near the Vectrino Profiler. Surface fluctuations measured w/ Ocean Sensor Systems XB Pro Significant wave height (H_s) was estimated from surface fluctuations using the methods of Dean and Dalrymple (1991), such that H_s=4σ_s, where σ_s is the standard deviation of surface measurements. Parameter or Variable: UCH_cms (calculated); Units: cm/s; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Streamwise (reef-parallel) depth-integrated channel velocity Depth-integrated streamwise and cross-shore channel velocities were calculated using offshore velocity profiles (Nortek Aquadopp HR Profiler) measured within 50cm of the bed.; Data Quality Method: Measurements with integrated channel speeds (U_CH^2+V_CH^2 )^(1/2)< 7.5cm/s were removed from the dataset. Parameter or Variable: VCH_cms (calculated); Units: cm/s; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Cross-shore depth-integrated channel velocity Depth-integrated streamwise and cross-shore channel velocities were calculated using offshore velocity profiles (Aquadopp HR Profiler) measured within 50cm of the bed.; Data Quality Method: Measurements with integrated channel speeds (U_CH^2+V_CH^2 )^(1/2)< 7.5cm/s were removed from the dataset. Parameter or Variable: UR_cms (measured); Units: cm/s; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Streamwise (reef-parallel) current velocity measured on the reef. Streamwise and cross-shore reef velocities are measured with the Nortek Vectrino Profiler. Observations represent point measurements collected in the most accurate portion of the velocity profile, located at 2cm or 9.5cm above the bed for “_Low” and “_High” experiments, respectively.; Data Quality Method: Measurements with reef velocities (U_R^2+V_R^2 )^(1/2)< 2mm/s were removed from the dataset. Parameter or Variable: VR_cms (measured); Units: cm/s; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Cross-shore current velocity measured on the reef Streamwise and cross-shore reef velocities are measured with the Nortek Vectrino Profiler. Observations represent point measurements collected in the most accurate portion of the velocity profile, located at 2cm or 9.5cm above the bed for “_Low” and “_High” experiments, respectively.; Data Quality Method: Measurements with reef velocities (U_R^2+V_R^2 )^(1/2)< 2mm/s were removed from the dataset. Parameter or Variable: wp2o_m2s2 (calculated); Units: m2/s2; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Vertical turbulent energy measured on the reef. Vertical turbulent and wave energy were estimated from velocity fluctuations measured by the Nortek Vectrino Profiler (sample rate: 100Hz). The contributions of waves and turbulence were separated using the phase method, as described in Bricker and Monismith (2007). Observations represent point measurements collected in the most accurate portion of the velocity profile, located at 2cm or 9.5cm above the bed for “_Low” and “_High” experiments, respectively.; Data Quality Method: Measurements where the energy contributions of waves were greater than those of turbulence were removed from the dataset due to potential bias in phase decomposition. Parameter or Variable: ww2o_m2s2 (calculated); Units: m2/s2; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Vertical wave energy measured on the reef Vertical turbulent and wave energy were estimated from velocity fluctuations measured by the Vectrino Profiler (sample rate: 100Hz). The contributions of waves and turbulence were separated using the phase method, as described in Bricker and Monismith (2007). Observations represent point measurements collected in the most accurate portion of the velocity profile, located at 2cm or 9.5cm above the bed for “_Low” and “_High” experiments, respectively.; Data Quality Method: Measurements where the energy contributions of waves were greater than those of turbulence were removed from the dataset due to potential bias in phase decomposition. Parameter or Variable: ep_m2s3 (calculated); Units: m2/s3; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Turbulent kinetic energy dissipation (ϵ) measured on each reef Estimated from velocity fluctuations measured by the Vectrino Profiler (sample rate: 100Hz). Dissipation was estimated using a wave-corrected second order structure function as outlined in Scannel et al. (2017). Observations represent point measurements collected in the most accurate portion of the velocity profile, located at 2cm or 9.5cm above the bed for “_Low” and “_High” experiments, respectively.; Data Quality Method: Fits with adjusted R2 values less than 80% were rejected as erroneous (replaced w/ NaN). Parameter or Variable: P_m2s3 (calculated); Units: m2/s3; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Estimated from velocity fluctuations measured by the Vectrino Profiler (sample rate: 100Hz). Shear production was estimated from wave removed estimates of the Reynolds stress tensor and direct measurements of the velocity shear. Observations represent point measurements collected in the most accurate portion of the velocity profile, located at 2cm or 9.5cm above the bed for “_Low” and “_High” experiments, respectively.; Data Quality Method: Production estimates were limited to velocity profiles where current speeds increased with distance above the bed. All estimates made with atypical velocity profiles were replaced with NaN. Parameter or Variable: us_ms (calculated); Units: m/s; Observation Category: in situ; Sampling Instrument: Acoustic Doppler Velocimeter (ADV); Sampling and Analyzing Method: Turbulent velocity scales estimated for flows on each reef. Estimated from velocity fluctuations measured by the Vectrino Profiler (sample rate: 100Hz). Turbulent velocity scales were estimated from wave removed estimates of the Reynolds stress. This parameter was used for scaling in order to compare conditions across sample reefs asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian Acoustic Doppler Velocimeter (ADV) Acoustic Doppler Velocimeter (ADV) High-resolution acoustic instruments to study rapid 3D velocity fluctuations ADVs have three or more focused beams to measure with high sampling rates in a small point. They work by sending out a short acoustic pulse from the transmit element. When the pulse travels through the focus point for the receiver beams, the echo is recorded in each of the acoustic receiver elements. The echo is then processed to find the Doppler shift, the scaling is adjusted with the measured speed of sound in the liquid (hence the temperature measurement), and the velocity vector is recorded or transmitted to a PC at a rapid rate. http://www.nortek-as.com/en/products/velocimeters acoustic sensor acoustic sensor generic instrument type for sensing sound in the water column Use acoustic sensor for a variety of types of observations, including acoustic tomography, whale and other marine mammal sound detection, etc. Do not use acoustic sensor for instrument type when the thing being measured is distance to seafloor: use echo sounder or sidescan sonar as appropriate. anemometer anemometer measures wind speed An anemometer is an instrument that measures wind speed. Note that an aerovane (insttypes_id 175) is an anemometer which has a tail and a propeller to measure the speed and direction of the wind. pressure gauge pressure gauge pressure gauge pressure gauge used to measure water pressure for use in NODC File Alias F017