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| Dataset Title: | RMI Zooplankton Sampling for Glider Echosounder Ground-Truthing
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| Institution: | Rutgers University (Dataset ID: rmi_zooplankton_sampling_glider_echosounder_ground_truthing) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
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Attributes {
s {
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.68201468e+9, 1.74059004e+9;
String axis "T";
String calendar "gregorian";
String ioos_category "Time";
String long_name "Time";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 _FillValue -9999.0;
Float32 actual_range 39.16718, 40.36523;
String axis "Y";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "Start latitude of the net tow";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 _FillValue -9999.0;
Float32 actual_range -74.35865, -73.74897;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "Start longitude of the net tow";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
latitude_end {
Float32 _FillValue -9999.0;
Float32 actual_range 39.29438, 40.36458;
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "End latitude of the net tow";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
longitude_end {
Float32 _FillValue -9999.0;
Float32 actual_range -74.35944, 73.87397;
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "End longitude of the net tow";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
tow_duration {
Int32 _FillValue -9999;
Int32 actual_range 2, 9;
String description "Duration of the net tow";
String ioos_category "Time";
String long_name "Tow Duration";
String units "minutes";
}
glider_trajectory {
String description "ID of the glider deployment";
String ioos_category "Unknown";
String long_name "Glider Trajectory";
}
acoustics_configuration {
String description "Transducer configuration of the on-board echo sounder. Zooplankton (120, 200, 455 and 769 kHz) or fish (38, 120, and 200 kHz))";
String ioos_category "Unknown";
String long_name "Acoustics Configuration";
}
deployment_recovery {
String description "Net tow performed at glider deployment or recovery";
String ioos_category "Unknown";
String long_name "Deployment Recovery";
}
tow_number {
Int32 _FillValue -9999;
Int32 actual_range 1, 2;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String description "Replicate cast number of the discrete net tow";
String ioos_category "Statistics";
String long_name "Tow Number";
}
season {
String description "Season assigned to the glider deployment";
String ioos_category "Unknown";
String long_name "Season";
}
sample_notes {
String description "Notes about the sample from collection or identification";
String ioos_category "Unknown";
String long_name "Sample Notes";
}
water_column_depth {
Int32 _FillValue -9999;
Int32 actual_range 16, 26;
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String description "Depth of the water column";
String ioos_category "Location";
String long_name "Water Column Depth";
String standard_name "depth";
String units "m";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Int32 _FillValue -9999;
Int32 actual_range 16, 21;
String axis "Z";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String description "Maximum depth the net reached during the oblique tow. This was estimated using wire angle and length of wire until April 2025 when the depth was measured using a HOBO Titanium 250-Foot Depth Water Level Data Logger attached to the net.";
String ioos_category "Location";
String long_name "Net Depth";
String positive "down";
String standard_name "depth";
String units "m";
}
volume_filtered {
Float32 _FillValue -9999.0;
Float32 actual_range 8.03, 82.89;
String description "The volume of water filtered by the zooplankton net during the tow based on the flowmeter and the formula =(([flowmeter value at end of tow - [flowmeter value at start of tow]) * 26873/999999) * (3.14 * [net radius]^2)";
String ioos_category "Unknown";
String long_name "Volume Filtered";
String units "m3";
}
taxa {
String description "Zooplankton identification to the lowest feasible taxonomic level";
String ioos_category "Taxonomy";
String long_name "Taxa";
}
taxa_group {
String description "Broader taxonomic grouping of the zooplankton taxa";
String ioos_category "Taxonomy";
String long_name "Taxa Group";
}
count {
Int32 _FillValue -9999;
Int32 actual_range 1, 217088;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String description "Total count, extrapolated from a split and counted subsample (when applicable)";
String ioos_category "Statistics";
String long_name "Zooplankton Count";
String units "individuals";
}
concentration {
Float32 _FillValue -9999.0;
Float32 actual_range 0.01, 13364.69;
String description "Calculated from count divided by volume_filtered";
String ioos_category "Zooplankton Abundance";
String long_name "Zooplankton Concentration";
String units "individuals m-3";
}
temperature_min {
Float32 _FillValue -9999.0;
Float32 actual_range 5.42, 20.5;
Float64 colorBarMaximum 32.0;
Float64 colorBarMinimum 0.0;
String description "Minimum sea water temperature encountered during the net tow. Measured by the collocated glider until April 2025 when the temperature was measured using a HOBO Titanium 250-Foot Depth Water Level Data Logger attached to the net.";
String ioos_category "Temperature";
String long_name "Minimum Sea Water Temperature";
String standard_name "sea_water_temperature";
String units "degree_C";
}
temperature_max {
Float32 _FillValue -9999.0;
Float32 actual_range 6.33, 22.1;
Float64 colorBarMaximum 32.0;
Float64 colorBarMinimum 0.0;
String description "Maximum sea water temperature encountered during the net tow. Measured by the collocated glider until April 2025 when the temperature was measured using a HOBO Titanium 250-Foot Depth Water Level Data Logger attached to the net.";
String ioos_category "Temperature";
String long_name "Maximum Sea Water Temperature";
String standard_name "sea_water_temperature";
String units "degree_C";
}
salinity_min {
Float32 _FillValue -9999.0;
Float32 actual_range 23.3, 31.6;
Float64 colorBarMaximum 37.0;
Float64 colorBarMinimum 32.0;
String description "Minimum sea water salinity encountered during the net tow, measured by the collocated glider.";
String ioos_category "Salinity";
String long_name "Minimum Sea Water Salinity";
String standard_name "sea_water_practical_salinity";
String units "1";
}
salinity_max {
Float32 _FillValue -9999.0;
Float32 actual_range 30.7, 32.6;
Float64 colorBarMaximum 37.0;
Float64 colorBarMinimum 32.0;
String description "Maximum sea water salinity encountered during the net tow, measured by the collocated glider.";
String ioos_category "Salinity";
String long_name "Maximum Sea Water Salinity";
String standard_name "sea_water_practical_salinity";
String units "1";
}
}
NC_GLOBAL {
String acknowledgement "Funding provided by The Research and Monitoring Initiative (RMI; administered by NJDEP and New Jersey Board of Public Utilities, BPU)";
String cdm_data_type "Point";
String comment "Zooplankton identification and enumeration from discrete tow samples taken at deployments and recoveries of gliders often equipped with an on-board ASL Acoustic Zooplankton Fish Profiler (AZFP) multi-frequency echo sounder with transducers configured for zooplankton (120, 200, 455 and 769 kHz). Zooplankton were collected aboard the vessel at glider deployment and recovery by performing replicate oblique tows from the surface to approximately 5 m above the seafloor with a 0.25 m^2, 200 micron mesh net with filtering cod-end and preserved in 10% buffered formalin. Net depth was estimated using wire angle and length of wire until April 2025 when the depth was measured using a HOBO Titanium 250-Foot Depth Water Level Data Logger attached to the net. In the lab, each tow was split to obtain a representative sample, and individual zooplankton were identified to lowest feasible taxonomic group and counted using a dissecting stereo microscope.";
String contributor_name "Grace Saba, Delphine Mossman, Lori Garzio, Jessica DeFeo, Adam Kos";
String contributor_role "Principal Investigator, Technician, Technician, Researcher, Researcher";
String Conventions "ACDD 1.3, COARDS, CF-1.10";
String creator_email "ecosystemdata@marine.rutgers.edu";
String creator_institution "Rutgers University";
String creator_name "Rutgers Marine Ecosystem Data Team";
String creator_type "group";
String creator_url "https://rucool.marine.rutgers.edu/";
Float64 Easternmost_Easting -73.74897;
String featureType "Point";
String geospatial_bounds_crs "EPSG:6347";
Float64 geospatial_lat_max 40.36523;
Float64 geospatial_lat_min 39.16718;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -73.74897;
Float64 geospatial_lon_min -74.35865;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 21.0;
Float64 geospatial_vertical_min 16.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2025-07-02T10:22:43Z (local files)
2025-07-02T10:22:43Z https://rucool-sampling.marine.rutgers.edu/erddap/tabledap/rmi_zooplankton_sampling_glider_echosounder_ground_truthing.html";
String id "rmi_zooplankton_sampling_glider_echosounder_ground_truthing";
String infoUrl "https://rucool.marine.rutgers.edu/";
String institution "Rutgers University";
String keywords "abundance, acoustics, acoustics_configuration, centers, column, concentration, configuration, control, count, data, density, deployment, deployment_recovery, depth, duration, earth, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Salinity, echosounder, environmental, filtered, glider, glider_trajectory, ground, ground-truthing, group, information, latitude, latitude_end, longitude, longitude_end, maximum, minimum, national, ncei, nesdis, net, noaa, notes, number, ocean, oceans, practical, quality, recovery, rmi, rutgers, salinity, salinity_max, salinity_min, sample, sample_notes, sampling, science, sea, sea_water_practical_salinity, sea_water_temperature, season, seawater, statistics, taxa, taxa_group, taxonomy, temperature, temperature_max, temperature_min, time, tow, tow_duration, tow_number, trajectory, truthing, university, volume, volume_filtered, water, water_column_depth, zooplankton, zooplankton abundance";
String keywords_vocabulary "GCMD Science Keywords";
String license "see Data Use Agreement";
Float64 Northernmost_Northing 40.36523;
String program "An ecological and oceanographic baseline to inform offshore wind development over the continental shelf off the coast of New Jersey; An ecological and oceanographic monitoring program to inform offshore wind related research over the coastal continental shelf of New Jersey";
String project "RMI Eco-gliders";
String publisher_email "ecosystemdata@marine.rutgers.edu";
String publisher_institution "Rutgers University";
String publisher_name "Rutgers Marine Ecosystem Data Team";
String publisher_type "group";
String references "Zooplankton of the Atlantic and Gulf Coasts 2nd ed 2012 https://doi.org/10.1353/book.19394 ; McClatchie et al., 2000, https://doi.org/10.1016/S0165-7836(00)00168-5";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 39.16718;
String standard_name_vocabulary "CF Standard Name Table v70";
String subsetVariables "acoustics_configuration";
String summary "This project is conducting a seasonal baseline survey with a pair of underwater Slocum gliders deployed in each season with a full complement of available sensors to simultaneously map oceanographic and ecological variables. Zooplankton samples were taken during glider deployments and recoveries. When a zooplankton-configured ASL Acoustic Zooplankton Fish Profiler (AZFP) was on board the glider, these samples were used to ground-truth the glider-based acoustic zooplankton concentration and biomass estimates. Full-resolution quality-controlled glider datasets and associated raw and processed acoustic data are archived at National Centers for Environmental Information (NCEI)'s Water Column Sonar Data repository https://www.ncei.noaa.gov/products/water-column-sonar-data. Full-resolution raw glider datasets that do not contain the acoustic data can be downloaded at https://slocum-data.marine.rutgers.edu/erddap/index.html.";
String time_coverage_end "2025-02-26T17:14:00Z";
String time_coverage_start "2023-04-20T18:18:00Z";
String title "RMI Zooplankton Sampling for Glider Echosounder Ground-Truthing";
Float64 Westernmost_Easting -74.35865;
}
}
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