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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL acknowledgement String This deployment is supported by funding from Ocean Wind LLC
attribute NC_GLOBAL cdm_data_type String TrajectoryProfile
attribute NC_GLOBAL cdm_profile_variables String profile_id
attribute NC_GLOBAL cdm_trajectory_variables String trajectory_id
attribute NC_GLOBAL contributor_name String Josh Kohut, Grace Saba, Thomas Grothues, Kaycee Coleman, Nicole Waite, David Aragon, Brian Buckingham, Chip Haldeman, John Kerfoot, Laura Nazzaro, Lori Garzio, Timothy Stolarz, Delphine Mossman
attribute NC_GLOBAL contributor_role String Principal Investigator, Principal Investigator, Principal Investigator, Project Manager, Pilot, Pilot, Pilot, Pilot, Data Management, Data Management, Data Management, Data Management, AZFP Analyst
attribute NC_GLOBAL Conventions String CF-1.10, ACDD-1.3, IOOS-1.2, COARDS
attribute NC_GLOBAL creator_email String ecosystemdata at marine.rutgers.edu
attribute NC_GLOBAL creator_institution String Rutgers University
attribute NC_GLOBAL creator_name String Rutgers Center for Ocean Observing Leadership Ecosystem Data Team
attribute NC_GLOBAL creator_type String group
attribute NC_GLOBAL creator_url String https://rucool.marine.rutgers.edu/ (external link)
attribute NC_GLOBAL date_created String 2025-12-12T16:35:06.408802Z
attribute NC_GLOBAL date_issued String 2025-12-12T16:35:06.408802Z
attribute NC_GLOBAL date_metadata_modified String 2025-12-19
attribute NC_GLOBAL date_modified String 2025-12-19
attribute NC_GLOBAL Easternmost_Easting double -74.0669
attribute NC_GLOBAL featureType String TrajectoryProfile
attribute NC_GLOBAL geospatial_lat_max double 39.3256
attribute NC_GLOBAL geospatial_lat_min double 38.8081
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -74.0669
attribute NC_GLOBAL geospatial_lon_min double -74.6113
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 39.38108
attribute NC_GLOBAL geospatial_vertical_min double 3.4812
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL history String 2025-12-12T16:35:06.408802Z - Created from CSV files using Python netCDF4 library
attribute NC_GLOBAL id String ru28-20220520T1425_azfp_fish
attribute NC_GLOBAL infoUrl String https://rucool.marine.rutgers.edu/ (external link)
attribute NC_GLOBAL institution String Rutgers University
attribute NC_GLOBAL instrument String AZFP
attribute NC_GLOBAL instrument_vocabulary String https://vocab.nerc.ac.uk/collection/L05/current/ (external link)
attribute NC_GLOBAL keywords String 20220520t1425, ABC, acoustic, acoustics, area, Area_Backscatter_Strength, average, azfp, backscatter, backscattering, between, biomass, cell, classified, coefficient, conductivity, ctd, data, deployment, depth, Depth_mean, deviation, difference, Dist_M, distance, earth, Earth Science > Oceans > Ocean Acoustics > Acoustic Frequency, echosounder, end, Exclude_below_line_depth_mean, fish, frequencies, frequency, glider, group, identified, identifier, instrument, instrument_azfp, latitude, layer, Layer_depth_max, Layer_depth_min, longitude, maximum, mean, measurement, minimum, name, NASC, nautical, number, obs, observations, ocean, oceans, ping, Ping_E, Ping_S, platform, profile, profile_id, ru28, ru28-20220520t1425, rutgers, scattering, science, seafloor, slocum, sonde, sound, sound_frequency, species, standard, Standard_deviation, start, statistics, strength, Sv_mean, taxonomic, taxonomy, temperature, thickness, Thickness_mean, time, trajectory, trajectory/deployment, trajectory_id, two, university, volume, volume_backscattering_coefficient
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String This data may be redistributed and used without restriction.
attribute NC_GLOBAL naming_authority String edu.rutgers.marine
attribute NC_GLOBAL Northernmost_Northing double 39.3256
attribute NC_GLOBAL platform String ru28
attribute NC_GLOBAL platform_vocabulary String https://vocab.nerc.ac.uk/collection/L06/current/ (external link)
attribute NC_GLOBAL processing_level String Raw AZFP echosounder data processed using Echoview with a vertical bin of 1m and a horizontal bin of 0.1 nmi.
attribute NC_GLOBAL program String Ocean Wind 01 Fisheries Monitoring Plan
attribute NC_GLOBAL project String Ocean Wind 01 Fisheries Monitoring Plan, Glider-Based Sampling
attribute NC_GLOBAL publisher_email String ecosystemdata at marine.rutgers.edu
attribute NC_GLOBAL publisher_institution String Rutgers University
attribute NC_GLOBAL publisher_name String Rutgers Center for Ocean Observing Leadership Ecosystem Data Team
attribute NC_GLOBAL publisher_type String group
attribute NC_GLOBAL publisher_url String https://rucool.marine.rutgers.edu/ (external link)
attribute NC_GLOBAL sea_name String Mid-Atlantic Bight
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 38.8081
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v84
attribute NC_GLOBAL subsetVariables String platform, instrument_azfp, trajectory_id
attribute NC_GLOBAL summary String This project provides monitoring of key fish species and habitat features within the planned Ocean Wind site and a nearby control site off the coast of southern New Jersey before, during, and after wind farm construction. This glider is equipped with an Acoustic Zooplankton Fish Profiler (AZFP), an autonomous, low-power echo sounder that possesses the capabilities to study the abundance, distribution, and behavior of various sizes of fishes and large zooplankton throughout the water column over large spatial scales by measuring acoustic backscatter returns with ultrasonic frequencies. This 3-4 week deployment will test the use of gliders for conducting fisheries and ecosystem surveys in and around the Ocean Wind study site. The AZFP used on this deployment is configured for fish detections (38, 120, and 200 kHz) and this dataset contains the AZFP data analysis output from Echoview. Environmental data from this deployment, including Conductivity, Temperature, Depth (CTD) data and fluorescence data (ie chlorophyll) is available separately on slocum-data.marine.rutgers.edu.
attribute NC_GLOBAL time_coverage_end String 2022-06-10T14:05:47Z
attribute NC_GLOBAL time_coverage_start String 2022-05-21T00:01:38Z
attribute NC_GLOBAL title String ru28-20220520T1425 AZFP Fish Biomass
attribute NC_GLOBAL Westernmost_Easting double -74.6113
variable obs int
attribute obs _FillValue int 2147483647
attribute obs actual_range int 3, 39
attribute obs ioos_category String Unknown
attribute obs long_name String Obs
variable Depth_mean float
attribute Depth_mean _FillValue float NaN
attribute Depth_mean actual_range float 3.4812, 39.38108
attribute Depth_mean colorBarMaximum double 8000.0
attribute Depth_mean colorBarMinimum double -8000.0
attribute Depth_mean colorBarPalette String TopographyDepth
attribute Depth_mean comment String Average depth of the cell being analyzed (m); derived from the depth of each ping in the cell being analyzed. Same as depth coordinate variable.
attribute Depth_mean ioos_category String Location
attribute Depth_mean long_name String average depth of acoustic measurement cell
attribute Depth_mean positive String down
attribute Depth_mean standard_name String depth
attribute Depth_mean units String m
variable Layer_depth_min float
attribute Layer_depth_min _FillValue float NaN
attribute Layer_depth_min actual_range float 3.0, 39.0
attribute Layer_depth_min colorBarMaximum double 8000.0
attribute Layer_depth_min colorBarMinimum double -8000.0
attribute Layer_depth_min colorBarPalette String TopographyDepth
attribute Layer_depth_min comment String Minimum depth of the cell being analyzed (m)
attribute Layer_depth_min ioos_category String Location
attribute Layer_depth_min long_name String minimum depth of layer
attribute Layer_depth_min positive String down
attribute Layer_depth_min standard_name String depth
attribute Layer_depth_min units String m
variable Layer_depth_max float
attribute Layer_depth_max _FillValue float NaN
attribute Layer_depth_max actual_range float 4.0, 40.0
attribute Layer_depth_max colorBarMaximum double 8000.0
attribute Layer_depth_max colorBarMinimum double -8000.0
attribute Layer_depth_max colorBarPalette String TopographyDepth
attribute Layer_depth_max comment String Maximum depth of the cell being analyzed (m)
attribute Layer_depth_max ioos_category String Location
attribute Layer_depth_max long_name String maximum depth of layer
attribute Layer_depth_max positive String down
attribute Layer_depth_max standard_name String depth
attribute Layer_depth_max units String m
variable profile_id int
attribute profile_id _FillValue int 2147483647
attribute profile_id actual_range int 0, 1784
attribute profile_id cf_role String profile_id
attribute profile_id comment String Unique identifier for each profile (vertical measurement set at a given time/location)
attribute profile_id ioos_category String Identifier
attribute profile_id long_name String profile identifier
variable Sv_mean float
attribute Sv_mean _FillValue float -999.0
attribute Sv_mean actual_range float -122.2573, -39.24947
attribute Sv_mean comment String Averaged Sv for the cell being analyzed
attribute Sv_mean ioos_category String Statistics
attribute Sv_mean long_name String mean volume backscattering strength
attribute Sv_mean standard_name String volume_backscattering_coefficient
attribute Sv_mean units String dB
variable NASC float
attribute NASC _FillValue float -999.0
attribute NASC actual_range float 1.9E-5, 1817.867
attribute NASC comment String Nautical Area Scattering Coefficient for the cell being analyzed
attribute NASC ioos_category String Unknown
attribute NASC long_name String nautical area scattering coefficient
attribute NASC units String m2 nmi-2
variable ABC float
attribute ABC _FillValue float -999.0
attribute ABC actual_range float 4.5E-13, 4.217649E-5
attribute ABC comment String Area backscattering coefficient for the cell being analyzed
attribute ABC ioos_category String Unknown
attribute ABC long_name String area backscattering coefficient
attribute ABC units String m2 m-2
variable Area_Backscatter_Strength float
attribute Area_Backscatter_Strength _FillValue float -999.0
attribute Area_Backscatter_Strength actual_range float -123.5057, -43.74929
attribute Area_Backscatter_Strength comment String Logarithm of ABC for the cell being analyzed
attribute Area_Backscatter_Strength ioos_category String Unknown
attribute Area_Backscatter_Strength long_name String area backscatter strength
attribute Area_Backscatter_Strength units String dB
variable Standard_deviation float
attribute Standard_deviation _FillValue float -999.0
attribute Standard_deviation actual_range float 0.0, 8.979334E-5
attribute Standard_deviation colorBarMaximum double 0.1
attribute Standard_deviation colorBarMinimum double 0.0
attribute Standard_deviation comment String Standard deviation of Sv, calculated in the linear domain
attribute Standard_deviation ioos_category String Statistics
attribute Standard_deviation long_name String standard deviation of volume backscattering strength
attribute Standard_deviation units String 1
variable Thickness_mean float
attribute Thickness_mean _FillValue float -999.0
attribute Thickness_mean actual_range float 0.006974, 0.997219
attribute Thickness_mean comment String Average height (or thickness) of the cell being analyzed (m)
attribute Thickness_mean ioos_category String Statistics
attribute Thickness_mean long_name String average thickness of acoustic measurement cell
attribute Thickness_mean units String m
variable Frequency float
attribute Frequency _FillValue float NaN
attribute Frequency actual_range float 38.0, 200.0
attribute Frequency comment String Echosounder frequency
attribute Frequency ioos_category String Unknown
attribute Frequency long_name String echosounder frequency
attribute Frequency standard_name String sound_frequency
attribute Frequency units String kHz
variable Difference float
attribute Difference _FillValue float -999.0
attribute Difference actual_range float -46.5673, 38.05819
attribute Difference colorBarMaximum double 10.0
attribute Difference colorBarMinimum double -10.0
attribute Difference comment String Difference in Sv between two frequencies; for three-frequency echosounder: when frequency is 38, difference is 200-38; when frequency is 125, difference is 125-38; when frequency is 200, difference is 200-125. For four-frequency echosounder: when frequency is 120, no differences calculated; when frequency is 200, difference is 200-120; when frequency is 455, difference is 455-200; when frequency is 769, difference is 769-455
attribute Difference ioos_category String Unknown
attribute Difference long_name String difference in Sv between two frequencies
attribute Difference units String dB
variable Exclude_below_line_depth_mean float
attribute Exclude_below_line_depth_mean _FillValue float -9999.0
attribute Exclude_below_line_depth_mean actual_range float 10.50088, 39.17181
attribute Exclude_below_line_depth_mean colorBarMaximum double 8000.0
attribute Exclude_below_line_depth_mean colorBarMinimum double -8000.0
attribute Exclude_below_line_depth_mean colorBarPalette String TopographyDepth
attribute Exclude_below_line_depth_mean comment String Mean depth of the seafloor in the cell being analyzed, measured from the sea surface
attribute Exclude_below_line_depth_mean ioos_category String Location
attribute Exclude_below_line_depth_mean long_name String mean depth of seafloor
attribute Exclude_below_line_depth_mean positive String down
attribute Exclude_below_line_depth_mean standard_name String depth
attribute Exclude_below_line_depth_mean units String m
variable Ping_S int
attribute Ping_S _FillValue int 2147483647
attribute Ping_S actual_range int 0, 21467
attribute Ping_S colorBarMaximum double 100.0
attribute Ping_S colorBarMinimum double 0.0
attribute Ping_S ioos_category String Statistics
attribute Ping_S long_name String ping number at start of measurement cell
attribute Ping_S units String 1
variable Ping_E int
attribute Ping_E _FillValue int 2147483647
attribute Ping_E actual_range int 16, 21574
attribute Ping_E colorBarMaximum double 100.0
attribute Ping_E colorBarMinimum double 0.0
attribute Ping_E ioos_category String Statistics
attribute Ping_E long_name String ping number at end of measurement cell
attribute Ping_E units String 1
variable Dist_M float
attribute Dist_M _FillValue float NaN
attribute Dist_M actual_range float 7.083925, 262.7449
attribute Dist_M comment String Mean distance from the start of the deployment to the cell being analyzed
attribute Dist_M ioos_category String Statistics
attribute Dist_M long_name String mean distance from deployment start
attribute Dist_M units String nmi
variable Species String
attribute Species comment String Species classification based on acoustic signatures and biological tow data; classifications include broader separations (swimbladder-bearing vs swimbladderless) and specific species identifications based on known species presence in the area
attribute Species ioos_category String Taxonomy
attribute Species long_name String identified or classified species or taxonomic group
variable time double
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.65309129832E9, 1.65486994791E9
attribute time axis String T
attribute time calendar String gregorian
attribute time ioos_category String Time
attribute time long_name String time of measurement
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable latitude float
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue float NaN
attribute latitude actual_range float 38.8081, 39.3256
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude ioos_category String Location
attribute latitude long_name String latitude of measurement
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
attribute latitude valid_max float 90.0
attribute latitude valid_min float -90.0
variable longitude float
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue float NaN
attribute longitude actual_range float -74.6113, -74.0669
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude ioos_category String Location
attribute longitude long_name String longitude of measurement
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
attribute longitude valid_max float 180.0
attribute longitude valid_min float -180.0
variable depth float
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue float NaN
attribute depth actual_range float 3.4812, 39.38108
attribute depth ancillary_variables String Layer_depth_min Layer_depth_max
attribute depth axis String Z
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth comment String Derived from the depth of each ping in the cell being analyzed. Also available as Depth_mean.
attribute depth ioos_category String Location
attribute depth long_name String average depth of acoustic measurement cell
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
attribute depth valid_min float 0.0
variable platform long
attribute platform _FillValue long 9223372036854775807
attribute platform actual_range long 1, 1
attribute platform glider_type String Teledyne Webb Research Slocum G2 glider
attribute platform id String ru28
attribute platform ioos_category String Unknown
attribute platform long_name String Slocum Glider ru28
attribute platform os_version double 8.3
attribute platform wmo_platform_code long 4801925
variable instrument_azfp long
attribute instrument_azfp _FillValue long 9223372036854775807
attribute instrument_azfp actual_range long 1, 1
attribute instrument_azfp calibration_date String 2017-10-24
attribute instrument_azfp comment String AZFP Echosounder configured for fish detections (38, 125, 200 kHz)
attribute instrument_azfp ioos_category String Unknown
attribute instrument_azfp long_name String Instrument Azfp
attribute instrument_azfp make_model String ASL AZFP-M
attribute instrument_azfp owner String Rutgers University
attribute instrument_azfp references String https://aslenv.com/brochures/AZFP-Glider_AUV.pdf (external link), https://aslenv.com/assets/files/AZFP.pdf (external link)
attribute instrument_azfp serial_number long 59006
variable trajectory_id String
attribute trajectory_id cf_role String trajectory_id
attribute trajectory_id ioos_category String Identifier
attribute trajectory_id long_name String Trajectory/Deployment Name

 
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