Easier access to scientific data
Brought to you by NOAA NMFS SWFSC ERD
|
ERDDAP
Easier access to scientific data |
Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | gavia-20250829T1435-delayed
|
| Institution: | US EPA Great Lakes Toxicology and Ecology Division; US EPA Great Lakes National Program Office (Dataset ID: gavia-20250829T1435-delayed) |
| Range: | longitude = -87.19725 to -86.32662°E, latitude = 44.62921 to 44.781544°N, depth = -0.545553 to 111.3817m, time = 2025-08-29T14:36:11Z to 2025-09-05T23:51:12Z |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Data Access Form
| Files
|
|
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Zoom:
![[The graph you specified. Please be patient.]](https://gliders.ioos.us/erddap/tabledap/gavia-20250829T1435-delayed.png?longitude,latitude,profile_id&time%3E=2025-08-30T00%3A00%3A00Z&time%3C=2025-09-06T00%3A00%3A00Z&.draw=markers&.marker=5%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff)
|
Attributes {
s {
trajectory {
UInt32 _ChunkSizes 19;
String cf_role "trajectory_id";
String comment "A trajectory is one deployment of a glider.";
String ioos_category "Identifier";
String long_name "Trajectory Name";
}
wmo_id {
String ioos_category "Identifier";
String long_name "WMO ID";
}
profile_id {
Int32 _FillValue 2147483647;
Int32 actual_range 1756478171, 1757116272;
String ancillary_variables "profile_time";
String cf_role "profile_id";
String comment "Unique identifier of the profile. The profile ID is the mean profile timestamp";
String ioos_category "Identifier";
String long_name "Profile ID";
Int32 valid_max 2147483647;
Int32 valid_min 1;
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.7564781714093578e+9, 1.757116272804838e+9;
String axis "T";
String calendar "gregorian";
String comment "Timestamp corresponding to the mid-point of the profile.";
String ioos_category "Time";
String long_name "Profile Time";
String observation_type "calculated";
String platform "platform";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
Float64 valid_max 2.147483647e+9;
Float64 valid_min 0.0;
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range 44.62921189516599, 44.781544398327746;
String axis "Y";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String comment "Value is interpolated to provide an estimate of the latitude at the mid-point of the profile.";
String ioos_category "Location";
String long_name "Profile Latitude";
String observation_type "calculated";
String platform "platform";
Int32 precision 5;
String standard_name "latitude";
String units "degrees_north";
Float64 valid_max 90.0;
Float64 valid_min -90.0;
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue NaN;
Float64 actual_range -87.19725054126452, -86.32662202567592;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String comment "Value is interpolated to provide an estimate of the longitude at the mid-point of the profile.";
String ioos_category "Location";
String long_name "Profile Longitude";
String observation_type "calculated";
String platform "platform";
Int32 precision 5;
String standard_name "longitude";
String units "degrees_east";
Float64 valid_max 180.0;
Float64 valid_min -180.0;
}
depth {
UInt32 _ChunkSizes 393;
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float32 _FillValue NaN;
Float64 accuracy 0.01;
Float32 actual_range -0.545553, 111.3817;
String axis "Z";
Float64 colorBarMaximum 2000.0;
Float64 colorBarMinimum 0.0;
String colorBarPalette "OceanDepth";
String comment "Calculated from llat_pressure and llat_latitude using gsw.z_from_p";
String instrument "instrument_ctd";
String ioos_category "Location";
String long_name "Depth";
String observation_type "calculated";
String platform "platform";
String positive "down";
Float64 precision 0.01;
String reference_datum "sea-surface";
Float64 resolution 0.01;
String standard_name "depth";
String units "m";
Float32 valid_max 2000.0;
Float32 valid_min 0.0;
}
conductivity {
UInt32 _ChunkSizes 393;
Float32 _FillValue NaN;
Float64 accuracy 0.001;
Float32 actual_range 0.01762, 0.02808;
Int32 bytes 4;
Float64 colorBarMaximum 9.0;
Float64 colorBarMinimum 0.0;
String coverage_content_type "physicalMeasurement";
String instrument "instrument_ctd";
String ioos_category "Salinity";
String long_name "Sea Water Electrical Conductivity";
String observation_type "measured";
String platform "platform";
Float64 precision 1.0e-5;
Float64 resolution 1.0e-5;
String sensor "sci_water_cond";
String source_sensor "sci_water_cond";
String standard_name "sea_water_electrical_conductivity";
String units "S m-1";
Float32 valid_max 10.0;
Float32 valid_min 0.0;
}
crs {
Int32 _FillValue -2147483647;
String epsg_code "EPSG:4326";
String grid_mapping_name "latitude_longitude";
Float64 inverse_flattening 298.257223563;
String ioos_category "Other";
String long_name "http://www.opengis.net/def/crs/EPSG/0/4326";
Float64 semi_major_axis 6378137.0;
}
density {
UInt32 _ChunkSizes 393;
Float32 _FillValue NaN;
Float32 actual_range 997.769, 1000.6434;
Float64 colorBarMaximum 1032.0;
Float64 colorBarMinimum 1020.0;
String coverage_content_type "modelResult";
String instrument "instrument_ctd";
String ioos_category "Other";
String long_name "Sea Water Density";
String observation_type "calculated";
String platform "platform";
String standard_name "sea_water_density";
String units "kg m-3";
Float32 valid_max 1040.0;
Float32 valid_min 1015.0;
}
instrument_ctd {
Byte _FillValue 127;
String _Unsigned "false";
String calibration_date "2021-04-30";
String calibration_report "2021-04-30";
String comment "Pumped";
String factory_calibrated "2021-04-30";
String ioos_category "Identifier";
String long_name "CTD Metadata";
String make_model "Sea-Bird GPCTD";
String platform "platform";
String serial_number "9032";
String type "instrument";
String units "1";
}
instrument_flbbcd {
Int32 _FillValue -2147483647;
String calibration_date "2021-04-30";
String calibration_report "2021-04-30";
String comment "Chlorophyll a CDOM and Backscatter at 700nm ";
String factory_calibrated "2021-04-30";
String ioos_category "Other";
String long_name "Sea-Bird Chlorophyll a CDOM and Backscatter Meter";
String make_model "Sea-Bird FLBBCD (SLK)";
String platform "platform";
String serial_number "4785";
String type "instrument";
}
instrument_optode {
Int32 _FillValue -2147483647;
String calibration_date "2019-05-28";
String calibration_report "2019-05-28";
String factory_calibrated "2019-05-28";
String ioos_category "Other";
String long_name "Aanderaa Oxygen Sensor";
String make_model "Aanderaa Oxygen Optode 4831";
String platform "platform";
String serial_number "121";
String type "instrument";
}
lat_uv {
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String ioos_category "Location";
String long_name "Depth-averaged Latitude";
}
lon_uv {
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String ioos_category "Location";
String long_name "Depth-averaged Longitude";
}
m_water_depth {
UInt32 _ChunkSizes 512;
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -1.0, 194.57;
Int32 bytes 4;
String coverage_content_type "physicalMeasurement";
String ioos_category "Other";
String long_name "m_water_depth";
String sensor "m_water_depth";
String source_sensor "m_water_depth";
String standard_name "sea_floor_depth_below_sea_surface";
String type "f4";
String units "m";
}
platform {
Byte _FillValue 127;
String _Unsigned "false";
String comment "unit 874";
String depth_rating "200m";
String glider_type "Slocum";
String id "gavia";
String instrument "instrument_ctd,instrument_flbbcd,instrument_optode";
String ioos_category "Identifier";
String long_name "Platform Metadata";
String type "platform";
String units "1";
String wmo_id "8901192";
}
precise_lat {
UInt32 _ChunkSizes 393;
Float64 _FillValue NaN;
Float64 actual_range 44.62884666666667, 44.78162166666666;
String axis "Y";
Int32 bytes 8;
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String comment "Interpolated latitude at each point in the time-series";
String coordinate_reference_frame "urn:ogc:crs:EPSG::4326";
String ioos_category "Location";
String long_name "Precise Latitude";
String observation_type "calculated";
String platform "platform";
Int32 precision 5;
String reference "WGS84";
String source_sensor "m_gps_lat";
String standard_name "latitude";
String units "degree_north";
Float64 valid_max 90.0;
Float64 valid_min -90.0;
}
precise_lon {
UInt32 _ChunkSizes 393;
Float64 _FillValue NaN;
Float64 actual_range -87.19740500000002, -86.3261496704295;
String axis "X";
Int32 bytes 8;
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String comment "Interpolated longitude at each point in the time-series";
String coordinate_reference_frame "urn:ogc:crs:EPSG::4326";
String ioos_category "Location";
String long_name "Precise Longitude";
String observation_type "calculated";
String platform "platform";
Int32 precision 5;
String reference "WGS84";
String source_sensor "m_gps_lon";
String standard_name "longitude";
String units "degree_east";
Float64 valid_max 180.0;
Float64 valid_min -180.0;
}
precise_time {
UInt32 _ChunkSizes 393;
Float64 actual_range 1.756478138497e+9, 1.757116586088e+9;
String axis "T";
Int32 bytes 8;
String calendar "gregorian";
String comment "Timestamp at each point in the time-series";
String ioos_category "Time";
String long_name "Precise Time";
String observation_type "measured";
String platform "platform";
String source_sensor "m_present_time";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
Float64 valid_max 2.147483647e+9;
Float64 valid_min 0.0;
}
pressure {
UInt32 _ChunkSizes 393;
Float32 _FillValue NaN;
Float64 accuracy 0.01;
Float32 actual_range -0.055, 11.232;
String axis "Z";
Int32 bytes 4;
Float64 colorBarMaximum 2000.0;
Float64 colorBarMinimum 0.0;
String instrument "instrument_ctd";
String ioos_category "Pressure";
String long_name "Sea Water Pressure";
String observation_type "measured";
String platform "platform";
String positive "down";
Float64 precision 0.01;
String reference_datum "sea-surface";
Float64 resolution 0.01;
String sensor "sci_water_pressure";
String source_sensor "sci_water_pressure";
String standard_name "sea_water_pressure";
String units "bar";
Float32 valid_max 2000.0;
Float32 valid_min 0.0;
}
salinity {
UInt32 _ChunkSizes 393;
Float32 _FillValue NaN;
Float32 actual_range 0.1024627, 0.14280222;
Float64 colorBarMaximum 37.0;
Float64 colorBarMinimum 30.0;
String coverage_content_type "modelResult";
String instrument "instrument_ctd";
String ioos_category "Salinity";
String long_name "Sea Water Practical Salinity";
String observation_type "calculated";
String platform "platform";
String standard_name "sea_water_practical_salinity";
String units "1";
Float32 valid_max 40.0;
Float32 valid_min 0.0;
}
sci_flbbcd_bb_units {
UInt32 _ChunkSizes 393;
Float64 _FillValue NaN;
Float64 actual_range -1.4399e-4, 0.00172788;
Int32 bytes 4;
String comment "700 nm. see also Mantovanelli and Thompson 2016, Particle backscattering coefficient For Wetlab Ecopucks in IMOS ANFOG gliders";
String coverage_content_type "physicalMeasurement";
String ioos_category "Other";
String long_name "sci_flbbcd_bb_units";
String sensor "sci_flbbcd_bb_units";
String source_sensor "sci_flbbcd_bb_units";
String standard_name "volume_scattering_function_of_radiative_flux_in_sea_water";
String type "f4";
String units "nodim";
Float64 valid_max 0.025;
Float64 valid_min 0.0;
}
sci_flbbcd_cdom_units {
UInt32 _ChunkSizes 393;
Float64 _FillValue NaN;
Float64 actual_range -2.0746, 3.157;
Int32 bytes 4;
String coverage_content_type "physicalMeasurement";
String ioos_category "Other";
String long_name "sci_flbbcd_cdom_units";
String sensor "sci_flbbcd_cdom_units";
String source_sensor "sci_flbbcd_cdom_units";
String standard_name "concentration_of_colored_dissolved_organic_matter_in_sea_water_expressed_as_equivalent_mass_fraction_of_quinine_sulfate_dihydrate";
String type "f4";
String units "ppb";
Float64 valid_max 400.0;
Float64 valid_min 0.0;
}
sci_flbbcd_chlor_units {
UInt32 _ChunkSizes 393;
Float64 _FillValue NaN;
Float64 actual_range -0.9417, 1.7374;
Int32 bytes 4;
String coverage_content_type "physicalMeasurement";
String ioos_category "Other";
String long_name "sci_flbbcd_chlor_units";
String sensor "sci_flbbcd_chlor_units";
String source_sensor "sci_flbbcd_chlor_units";
String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
String type "f4";
String units "ug/l";
Float64 valid_max 100.0;
Float64 valid_min 0.0;
}
sci_oxy4_oxygen {
UInt32 _ChunkSizes 785;
Float32 _FillValue NaN;
Float32 actual_range 208.251, 333.517;
Int32 bytes 4;
String coverage_content_type "physicalMeasurement";
String ioos_category "Other";
String long_name "sci_oxy4_oxygen";
String sensor "sci_oxy4_oxygen";
String source_sensor "sci_oxy4_oxygen";
String standard_name "mole_concentration_of_dissolved_molecular_oxygen_in_sea_water";
String type "f4";
String units "uM";
}
sci_oxy4_saturation {
UInt32 _ChunkSizes 393;
Float64 _FillValue NaN;
Float64 actual_range 88.881, 117.303;
Int32 bytes 4;
String coverage_content_type "physicalMeasurement";
String ioos_category "Other";
String long_name "sci_oxy4_saturation";
String sensor "sci_oxy4_saturation";
String source_sensor "sci_oxy4_saturation";
String standard_name "fractional_saturation_of_oxygen_in_sea_water";
String type "f4";
String units "%";
}
source_file {
UInt32 _ChunkSizes 33;
String all_sensors "0";
String comment "Name of the source data file and associated file metadata";
String dbd_label "DBD_ASC(dinkum_binary_data_ascii)file";
String encoding_ver "2";
Int32 file_size_bytes 12971084;
String filename "gavia-2025-243-0-39-sf";
String filename_extension "dbd";
String filename_label "gavia-2025-243-0-39-dbd(02420039)";
String fileopen_time "Fri_Sep__5_19:35:40_2025";
String ioos_category "Other";
String long_name "Source data file";
String mission_name "ls2022.mi";
String num_ascii_tags "14";
String num_label_lines "3";
String num_segments "1";
String segment_filename_0 "gavia-2025-243-0-39";
String sensors_per_cycle "99";
String source_file "/home/yxu01/GLHABs/Gavia2025/02420039.deba";
String the8x3_filename "02420039";
}
temperature {
UInt32 _ChunkSizes 393;
Float32 _FillValue NaN;
Float64 accuracy 0.004;
Float32 actual_range 3.7968, 22.4853;
Int32 bytes 4;
Float64 colorBarMaximum 32.0;
Float64 colorBarMinimum 0.0;
String coverage_content_type "physicalMeasurement";
String instrument "instrument_ctd";
String ioos_category "Temperature";
String long_name "Sea Water Temperature";
String observation_type "measured";
String platform "platform";
Float64 precision 0.001;
Float64 resolution 0.001;
String sensor "sci_water_temp";
String source_sensor "sci_water_temp";
String standard_name "sea_water_temperature";
String units "Celsius";
Float32 valid_max 40.0;
Float32 valid_min -5.0;
}
time_uv {
String ioos_category "Time";
String long_name "Depth-averaged Time";
}
u {
UInt32 _ChunkSizes 393;
Float64 _FillValue NaN;
Float64 actual_range -0.031577, 0.0117303;
Int32 bytes 4;
Float64 colorBarMaximum 0.5;
Float64 colorBarMinimum -0.5;
String comment "The depth-averaged current is an estimate of the net current measured while the glider is underwater. The value is calculated over the entire underwater segment, which may consist of 1 or more dives.";
String coordinates "lon_uv lat_uv time_uv";
String ioos_category "Currents";
String long_name "Depth-averaged Eastward Sea Water Velocity";
String observation_type "calculated";
String platform "platform";
String precision "0.01";
String resolution "0.01";
String sensor "m_water_vx";
String source_sensor "m_water_vx";
String standard_name "eastward_sea_water_velocity";
String units "m s-1";
Float64 valid_max 2.0;
Float64 valid_min -2.0;
}
v {
UInt32 _ChunkSizes 393;
Float64 _FillValue NaN;
Float64 actual_range -0.058339, -0.00228848;
Int32 bytes 4;
Float64 colorBarMaximum 0.5;
Float64 colorBarMinimum -0.5;
String comment "The depth-averaged current is an estimate of the net current measured while the glider is underwater. The value is calculated over the entire underwater segment, which may consist of 1 or more dives.";
String coordinates "lon_uv lat_uv time_uv";
String ioos_category "Currents";
String long_name "Depth-averaged Northward Sea Water Velocity";
String observation_type "calculated";
String platform "platform";
String precision "0.01";
String resolution "0.01";
String sensor "m_water_vy";
String source_sensor "m_water_vy";
String standard_name "northward_sea_water_velocity";
String units "m s-1";
Float64 valid_max 2.0;
Float64 valid_min -2.0;
}
}
NC_GLOBAL {
String _NCProperties "version=2,netcdf=4.8.1,hdf5=1.12.2";
String acknowledgment "US EPA Great Lakes Toxicology and Ecology Division; US EPA Great Lakes National Program Office";
String cdm_data_type "TrajectoryProfile";
String cdm_profile_variables "time_uv,lat_uv,lon_uv,u,v,profile_id,time,latitude,longitude";
String cdm_trajectory_variables "trajectory,wmo_id";
String contributor_name "US EPA Great Lakes Toxicology and Ecology Division; US EPA Great Lakes National Program Office";
String contributor_role "observation collection and processing";
String Conventions "Unidata Dataset Discovery v1.0, COARDS, CF-1.6";
String creator_email "Hollenhorst.Tom@epa.gov";
String creator_institution "US EPA Great Lakes Toxicology and Ecology Division; US EPA Great Lakes National Program Office";
String creator_name "US EPA Great Lakes Toxicology and Ecology Division; US EPA Great Lakes National Program Office";
String creator_type "institution";
String creator_url "https://www.epa.gov/aboutepa/about-great-lakes-toxicology-and-ecology-division";
String dac_qc_comment "gavia-20250829T1435-delayed (gavia_20250905T235112Z_dbd.nc: deployment time not in %Y%m%dT%H%M%S formatdelayed)";
String date_created "2026-04-27T21:44:34Z";
String date_issued "2026-04-27T21:44:34Z";
String date_modified "2026-04-27T21:44:34Z";
String deployment_name "gavia-20250829T1435";
Float64 Easternmost_Easting -86.32662202567592;
String featureType "TrajectoryProfile";
String format_version "IOOS_Glider_NetCDF_v2.0.nc";
String geospatial_bounds "POLYGON ((44.70681997864051 -86.7849748786532, 44.70681997864051 -86.78276152356379, 44.7063134608412 -86.78276152356379, 44.7063134608412 -86.7849748786532, 44.70681997864051 -86.7849748786532))";
String geospatial_bounds_crs "EPSG:4326";
String geospatial_bounds_vertical_crs "EPSG:5831";
Float64 geospatial_lat_max 44.781544398327746;
Float64 geospatial_lat_min 44.62921189516599;
String geospatial_lat_resolution "0.00001 degree";
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -86.32662202567592;
Float64 geospatial_lon_min -87.19725054126452;
String geospatial_lon_resolution "0.00001 degree";
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 111.3817;
Float64 geospatial_vertical_min -0.545553;
String geospatial_vertical_positive "down";
Int32 geospatial_vertical_resolution 0;
String geospatial_vertical_units "m";
String gts_ingest "TRUE";
String history
"2026-04-27T21:44:34Z: /tmp/tmpudhhbu5_/gavia_20250905T235112Z_dbdiyk_i3x9.nc created
2026-04-27T21:44:34Z: ../gncutils/scripts/dba_to_profile_nc.py /home/yxu01/GLHABs/Gavia2025/02420039.deba
2026-04-28T16:47:16Z (local files)
2026-04-28T16:47:16Z http://gliders.ioos.us/tabledap/gavia-20250829T1435-delayed.das";
String id "gavia-20250829T1435";
String infoUrl "https://gliders.ioos.us/erddap/";
String institution "US EPA Great Lakes Toxicology and Ecology Division; US EPA Great Lakes National Program Office";
String instrument "In Situ/Laboratory Instruments > Profilers/Sounders > CTD > FLBBCD > Optode";
String ioos_dac_checksum "d93c4dfb6bf0eb4ac183e990705020af";
String ioos_dac_completed "False";
String ioos_regional_association "GLOS";
String keywords "AUVS > Autonomous Underwater Vehicles, Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Density, Earth Science > Oceans > Salinity/Density > Salinity, glider, In Situ Ocean-based platforms > Seaglider, Slocum, Spray, trajectory, underwater glider, water, wmo";
String keywords_vocabulary "GCMD Science Keywords";
String license "This data may be redistributed and used without restriction. Data provided as is with no expressed or implied assurance of quality assurance or quality control";
String Metadata_Conventions "Unidata Dataset Discovery v1.0, COARDS, CF-1.6";
String metadata_link "Unidata Dataset Discovery v1.0, COARDS, CF-1.6";
String naming_authority "gov.noaa.ncei";
String ncei_template_version "NCEI_NetCDF_Trajectory_Template_v2.0";
Float64 Northernmost_Northing 44.781544398327746;
String platform "In Situ Ocean-based Platforms > AUVS > Autonomous Underwater Vehicles";
String platform_type "Slocum Glider";
String platform_vocabulary "NASA/GCMD Platforms Keywords Version 8.5";
String processing_level "Level 0";
String product_version "0.0";
String project "CSMI";
String publisher_email "Hollenhorst.Tom@epa.gov";
String publisher_institution "US EPA Great Lakes Toxicology and Ecology Division; US EPA Great Lakes National Program Office";
String publisher_name "US EPA Great Lakes Toxicology and Ecology Division; US EPA Great Lakes National Program Office";
String publisher_url "https://www.epa.gov/aboutepa/about-great-lakes-toxicology-and-ecology-division";
String references "https://www.epa.gov/aboutepa/about-great-lakes-toxicology-and-ecology-division";
String sea_name "Great Lakes";
String source "Observational data from a profiling glider.";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 44.62921189516599;
String standard_name_vocabulary "CF Standard Name Table v27";
String subsetVariables "wmo_id,trajectory,profile_id,time,latitude,longitude";
String summary "Water quality data collected by a Slocum electric glider.";
String time_coverage_duration "PT10M27.01S";
String time_coverage_end "2025-09-05T23:51:12Z";
String time_coverage_resolution "PTS";
String time_coverage_start "2025-08-29T14:36:11Z";
String title "gavia-20250829T1435-delayed";
String uuid "580964cf-9794-4060-a936-273204765cb5";
Float64 Westernmost_Easting -87.19725054126452;
}
}
Data Access Protocol (DAP) and its
selection constraints.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
followed by a collection of
constraints (e.g., variable<value),
each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.