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Dataset Title:	Biogeochemical Data from the Infralittoral Zone of the West Coast of Anticosti Island (2023) \| Données biogéochimiques de la zone infralittorale de la côte ouest de l'Île d'Anticosti (2023)
Institution:	Université du Québec à Rimouski (Dataset ID: uqarBiogeochemistryAlgeaWise2023)
Range:	longitude = -64.42943 to -64.34052°E, latitude = 49.77165 to 49.91631°N, time = 2023-08-16T20:30:00Z to 2023-08-25T13:30:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form \| Files

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  id {
    String ioos_category "Identifier";
    String long_name "Identifier";
    String name "id";
    String original_name "unique_id";
    String units "unitless";
  }
  sampleID {
    UInt32 actual_range 1, 14;
    String ioos_category "Identifier";
    String long_name "Sample identifier";
    UInt32 missing_value 4294967295;
    String name "sampleID";
    String original_name "sample_id";
    String units "unitless";
  }
  stationID {
    String ioos_category "Identifier";
    String long_name "Unique station ID";
    String name "stationID";
    String original_name "station_id";
    String units "unitless";
  }
  project {
    String ioos_category "Identifier";
    String long_name "Project name";
    String name "project";
    String original_name "project";
    String units "unitless";
  }
  station_name {
    String ioos_category "Identifier";
    String long_name "Station name";
    String name "station_name";
    String original_name "station";
    String units "unitless";
  }
  platformID {
    String description "Boat name use for sampling";
    String ioos_category "Other";
    String long_name "Boat name";
    String name "platformID";
    String original_name "boat";
    String units "unitless";
  }
  date {
    Float64 actual_range 1.692144e+9, 1.6929216e+9;
    String ioos_category "Time";
    String long_name "Date of sampling";
    String name "date";
    String nerc_standard_name "Date";
    String nerc_standard_name_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String original_name "date";
    String standard_name "time";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0115/";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  hour {
    String comment "timezone: UTC";
    String ioos_category "Time";
    String long_name "Time of sampling";
    String name "hour";
    String nerc_standard_name "Time";
    String nerc_standard_name_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AAFDZZ01/";
    String standard_name "time";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0115/";
    String units "HH:mm:ss";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.6922178e+9, 1.6929702e+9;
    String axis "T";
    String coverage_content_type "coordinate";
    String datatype "string";
    String ioos_category "Time";
    String long_name "Time";
    String original_name "datetime";
    String standard_name "time";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0115/";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 49.77165, 49.91631;
    String axis "Y";
    Float64 colorBarMaximum 49.92;
    Float64 colorBarMinimum 49.77;
    String description "Latitude coordinates of the measurement sites in decimal degrees (degrees north)";
    String ioos_category "Location";
    String long_name "Latitude";
    String name "lat";
    String original_name "lat";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue 1.0e+36;
    Float32 actual_range -64.42943, -64.34052;
    String axis "X";
    Float64 colorBarMaximum -64.34;
    Float64 colorBarMinimum -64.43;
    String description "Longitude coordinates of the measurement sites in decimal degrees (degrees east)";
    String ioos_category "Location";
    String long_name "Longitude";
    String name "lon";
    String original_name "lon";
    String standard_name "longitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0554/";
    String units "degrees_east";
  }
  waterbody {
    String description "Type of waterbody sampled";
    String ioos_category "Other";
    String long_name "Station waterbody";
    String name "waterbody";
    String original_name "station_waterbody";
    String units "unitless";
  }
  sea_floor_depth {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 3.7, 13.2;
    Float64 colorBarMaximum 13.2;
    Float64 colorBarMinimum 3.7;
    String colorBarPalette "KT_deep";
    String ioos_category "Bathymetry";
    String long_name "Sea floor depth";
    Float32 missing_value NaN;
    String name "sea_floor_depth";
    String original_name "water_depth";
    String standard_name "sea_floor_depth_below_sea_surface";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFV13N17/";
    String units "m";
  }
  sampling_type {
    String description "Either river, surface or subsurface";
    String ioos_category "Identifier";
    String long_name "Localisation of sampling";
    String name "sampling_type";
    String original_name "sampling_type";
    String units "unitless";
  }
  PSAL {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 27.1144, 31.1986;
    Float64 colorBarMaximum 31.2;
    Float64 colorBarMinimum 27.11;
    String colorBarPalette "KT_haline";
    String comment "Mean value";
    String instrument "salinometer (Guildline Portasal 8410A)";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0242/";
    String ioos_category "Salinity";
    String long_name "Practical salinity";
    Float32 missing_value NaN;
    String name "PSAL";
    String original_name "sal";
    String standard_name "sea_water_practical_salinity";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/IADIHDIJ/";
    String units "PSU";
  }
  chlorophyll_a {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.3102675, 2.57295;
    Float64 colorBarMaximum 2.6;
    Float64 colorBarMinimum 0.3;
    String colorBarPalette "KT_algae";
    String colorBarScale "Log";
    String instrument "Fluorimeter (Turner Designs TD10-AU)";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0393/";
    String ioos_category "Ocean Color";
    String long_name "Chlorophyll a concentration";
    Float32 missing_value NaN;
    String name "chlorophyll_a";
    String original_name "Chl";
    String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CF14N7/";
    String units "ug L-1";
  }
  phaeopigments {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.2721273, 2.438248;
    Float64 colorBarMaximum 2.44;
    Float64 colorBarMinimum 0.27;
    String colorBarPalette "KT_algae";
    String colorBarScale "Log";
    String instrument "Fluorimeter (Turner Designs TD10-AU)";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0393/";
    String ioos_category "Ocean Color";
    String long_name "Phaeopigments concentration";
    Float32 missing_value NaN;
    String name "phaeopigments";
    String original_name "PHAEO";
    String standard_name "mass_concentration_of_phaeopigments_in_sea_water";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/9M7GYUHQ/";
    String units "ug L-1";
  }
  suspended_particulate_matter {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.49, 3.809;
    Float64 colorBarMaximum 3.81;
    Float64 colorBarMinimum 0.49;
    String colorBarPalette "KT_turbid";
    String instrument "scale";
    String ioos_category "Total Suspended Matter";
    String long_name "Suspended particulate matter";
    Float32 missing_value NaN;
    String name "suspended_particulate_matter";
    String original_name "SPM";
    String standard_name "mass_concentration_of_suspended_matter_in_sea_water";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CF12S23/";
    String units "mg L-1";
  }
  particulate_inorganic_matter {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.406, 2.063;
    Float64 colorBarMaximum 2.07;
    Float64 colorBarMinimum 0.4;
    String colorBarPalette "KT_turbid";
    String instrument "scale";
    String ioos_category "Other";
    String long_name "Suspended particulate inorganic matter";
    Float32 missing_value NaN;
    String name "particulate_inorganic_matter";
    String original_name "PIM";
    String units "mg L-1";
  }
  nitrite {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.027821, 0.119705;
    Float64 colorBarMaximum 0.12;
    Float64 colorBarMinimum 0.02;
    String colorBarPalette "YellowRed";
    String ioos_category "Dissolved Nutients";
    String long_name "Nitrite concentration";
    Float32 missing_value NaN;
    String name "nitrite";
    String original_name "NO2";
    String standard_name "mole_concentration_of_nitrite_in_sea_water";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/DDAEDBBI/";
    String units "umol L-1";
  }
  nitrate_and_nitrite {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.101909, 1.568821;
    Float64 colorBarMaximum 1.57;
    Float64 colorBarMinimum 0.1;
    String colorBarPalette "YellowRed";
    String ioos_category "Dissolved Nutients";
    String long_name "Nitrite and nitrate concentration";
    Float32 missing_value NaN;
    String name "nitrate_and_nitrite";
    String original_name "NO3/NO2";
    String standard_name "mole_concentration_of_nitrate_and_nitrite_in_sea_water";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/DABDADJB/";
    String units "umol L-1";
  }
  phosphate {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.029473, 0.540292;
    Float64 colorBarMaximum 0.541;
    Float64 colorBarMinimum 0.029;
    String colorBarPalette "YellowRed";
    String ioos_category "Dissolved Nutients";
    String long_name "Phosphate concentration";
    Float32 missing_value NaN;
    String name "phosphate";
    String original_name "PO4";
    String standard_name "mole_concentration_of_phosphate_in_sea_water";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CF12N502/";
    String units "umol L-1";
  }
  silicate {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 1.706305, 27.5842;
    Float64 colorBarMaximum 27.6;
    Float64 colorBarMinimum 1.7;
    String colorBarPalette "YellowRed";
    String ioos_category "Dissolved Nutients";
    String long_name "Slicate concentration";
    Float32 missing_value NaN;
    String name "silicate";
    String original_name "SiO4";
    String standard_name "mole_concentration_of_silicate_in_sea_water";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0810/";
    String units "umol L-1";
  }
  pico_PE_CYAN {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 1236.0, 76014.0;
    Float64 colorBarMaximum 76014.0;
    Float64 colorBarMinimum 1236.0;
    String colorBarPalette "YellowRed";
    String colorBarScale "Log";
    String instrument "Flow Cytometer (Beckman Coulter CytoFLEX)";
    String ioos_category "Other";
    String long_name "Phycoerythrin-rich picocyanobacteria cell count";
    Float32 missing_value NaN;
    String name "pico_PE_CYAN";
    String original_name "pico_PE_CYAN";
    String units "cell ml-1";
  }
  nano_PE_CYAN {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 200.0, 1400.0;
    Float64 colorBarMaximum 1400.0;
    Float64 colorBarMinimum 200.0;
    String colorBarPalette "YellowRed";
    String colorBarScale "Log";
    String instrument "Flow Cytometer (Beckman Coulter CytoFLEX)";
    String ioos_category "Other";
    String long_name "Phycoerythrin-rich nanocyanobacteria cell count";
    Float32 missing_value NaN;
    String name "nano_PE_CYAN";
    String original_name "nano_PE_CYAN";
    String units "cell ml-1";
  }
  picoeukaryote {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 619.0, 59361.0;
    Float64 colorBarMaximum 59361.0;
    Float64 colorBarMinimum 619.0;
    String colorBarPalette "YellowRed";
    String colorBarScale "Log";
    String instrument "Flow Cytometer (Beckman Coulter CytoFLEX)";
    String ioos_category "Other";
    String long_name "Picoeukaryote cell count";
    Float32 missing_value NaN;
    String name "picoeukaryote";
    String nerc_standard_name "abundance_of_picoeukaryotic_cells_per_unit_volume_of_the_water_body_by_flow_cytometry";
    String nerc_standard_name_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PYEUA00A/";
    String original_name "picoeukaryote";
    String units "cell ml-1";
  }
  nanoeukaryotes {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 2478.0, 19233.0;
    Float64 colorBarMaximum 19233.0;
    Float64 colorBarMinimum 2478.0;
    String colorBarPalette "YellowRed";
    String colorBarScale "Log";
    String instrument "Flow Cytometer (Beckman Coulter CytoFLEX)";
    String ioos_category "Other";
    String long_name "Nanoeukaryotes cell count";
    Float32 missing_value NaN;
    String name "nanoeukaryotes";
    String original_name "nanoeukaryotes";
    String units "cell ml-1";
  }
  pico_PC_CYAN {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 75325.0;
    Float64 colorBarMaximum 75325.0;
    Float64 colorBarMinimum 0.001;
    String colorBarPalette "YellowRed";
    String colorBarScale "Log";
    String instrument "Flow Cytometer (Beckman Coulter CytoFLEX)";
    String ioos_category "Other";
    String long_name "Phycocyanin-rich picocyanobacteria cell count";
    Float32 missing_value NaN;
    String name "pico_PC_CYAN";
    String original_name "pico_PC_CYAN";
    String units "cell ml-1";
  }
  nano_PC_CYAN {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 8.0, 10967.0;
    Float64 colorBarMaximum 10967.0;
    Float64 colorBarMinimum 8.0;
    String colorBarPalette "YellowRed";
    String colorBarScale "Log";
    String instrument "Flow Cytometer (Beckman Coulter CytoFLEX)";
    String ioos_category "Other";
    String long_name "phycocyanin-rich nanocyanobacteria cell count";
    Float32 missing_value NaN;
    String name "nano_PC_CYAN";
    String original_name "nano_PC_CYAN";
    String units "cell ml-1";
  }
  nap_method {
    String description "Either \"measured\", \"fitted\", or \"modelled\"";
    String ioos_category "Other";
    String long_name "Method used from processing log";
    String name "nap_method";
    String original_name "nap_method";
    String units "unitless";
  }
  wavelength {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 230.0, 800.0;
    Float64 colorBarMaximum 800.0;
    Float64 colorBarMinimum 230.0;
    String colorBarPalette "Spectrum";
    String ioos_category "Other";
    String long_name "Wavelength of measurement";
    Float32 missing_value NaN;
    String name "wavelength";
    String original_name "wavelength";
    String standard_name "radiation_wavelength";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0407/";
    String units "nm";
  }
  NAP_absorption {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 8.279039e-4, 0.4984711;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum 0.0;
    String colorBarPalette "YellowRed";
    String description "Absorption coefficient of non-algal detritus or particles (NAP)";
    String instrument "Spectrophotometer (Perkin Elmer / Lambda 35)";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0947/";
    String ioos_category "Optical Properties";
    String long_name "NAP absorption coefficient";
    Float32 missing_value NaN;
    String name "NAP_absorption";
    String original_name "ad";
    String units "m-1";
  }
  particulate_absorption {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 8.479696e-4, 0.5517055;
    Float64 colorBarMaximum 0.56;
    Float64 colorBarMinimum 0.0;
    String colorBarPalette "YellowRed";
    String instrument "Spectrophotometer (Perkin Elmer / Lambda 35)";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0947/";
    String ioos_category "Optical Properties";
    String long_name "Absorption coefficient of particles (ad + aph)";
    Float32 missing_value NaN;
    String name "particulate_absorption";
    String original_name "ap";
    String units "m-1";
  }
  CDOM_absorption {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 104.3415;
    Float64 colorBarMaximum 105.0;
    Float64 colorBarMinimum 0.0;
    String colorBarPalette "YellowRed";
    String instrument "Spectrophotometer (Perkin Elmer / Lambda 35)";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0947/";
    String ioos_category "Optical Properties";
    String long_name "Absorption coefficient colored dissolved organic matter";
    Float32 missing_value NaN;
    String name "CDOM_absorption";
    String original_name "ag";
    String units "m-1";
  }
 }
  NC_GLOBAL {
    String Attribut "Type";
    String cdm_data_type "Point";
    String contributor_institution "(1-3) Université du Québec à Rimouski";
    String contributor_name "(1) Simon Bélanger, (2) Alycia Boismenu, (3) Université du Québec à Rimouski";
    String contributor_role "(1) Metadata Custodian, Data Owner, Point Of Contact, Principal Investigator, Distributor (2) Metadata Custodian, Author, (3) Data Owner, Distributor";
    String contributor_type "(1-2) person, (3) institution";
    String Conventions "CF-1.13, COARDS ACDD-1.3, NCCSV-1.2";
    String creator_name "Alycia Boismenu";
    String creator_type "person";
    String cruise_end_date "2023-08-25";
    String cruise_start_date "2023-08-16";
    String defaultDataQuery "&time>=min(time)";
    String defaultGraphQuery "longitude,latitude,time&time>=min(time)&.bgColor=0xffffffff";
    Float64 Easternmost_Easting -64.34052;
    String featureType "Point";
    Float64 geospatial_lat_max 49.91631;
    Float64 geospatial_lat_min 49.77165;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -64.34052;
    Float64 geospatial_lon_min -64.42943;
    String geospatial_lon_units "degrees_east";
    String grid_mapping_epsg_code "EPSG:4326";
    String grid_mapping_epsg_code_url "https://epsg.io/4326";
    String grid_mapping_geographic_crs_name "WGS 84";
    String grid_mapping_inverse_flattening "298.2572236";
    String grid_mapping_name "latitude_longitude";
    String grid_mapping_prime_meridian_name "Greenwich";
    String grid_mapping_semi_major_axis "6378137";
    String history 
"2026-08-18T00:45:57Z (local files)
2026-08-18T00:45:57Z http://erddap.cioos.ca/tabledap/uqarBiogeochemistryAlgeaWise2023.das";
    String infoUrl "https://doi.org/10.26071/b72cf0e8-0ba9-49e2-96e8";
    String institution "Université du Québec à Rimouski";
    String instrument_vocabulary "SeaVoX Device Catalogue - https://github.com/nvs-vocabs/L22";
    String keywords "absorption, chlorophyll a, nutrients, ocean colour, particulate matter, phytoplankton, pigment, sea surface salinity";
    String keywords_fr "matiere particulaire, nutriments, couleur des océans, salinité de surface, absorption, chlorophylle a, phytoplancton, pigment";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Creative Commons Attribution 4.0 International license CC-BY 4.0";
    String licenseUrl "https://creativecommons.org/licenses/by/4.0/";
    String marine_region "Anticosti Platform";
    String marine_region_identifier "http://marineregions.org/mrgid/61171";
    Float64 Northernmost_Northing 49.91631;
    String platform "self-propelled boat";
    String platform_name "Limitless";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String project "AlgeaWise";
    String project_url "https://aquatel.uqar.ca/projet-algae-wise/";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 49.77165;
    String standard_name_nerc_vocabulary "The NERC Vocabulary Server (NVS)";
    String standard_name_vocabulary "CF Standard Name Table v90";
    String subsetVariables "project, stationID, station_name, sampleID, date, platformID, waterbody, sampling_type, nap_method";
    String summary "Biogeochemical data were collected from August 16 to August 25, 2023, in the coastal waters of Anticosti Island. This dataset includes biogeochemical parameters analyzed in the laboratory from water samples, including salinity, chlorophyll a, suspended particulate matter, nutrients, cellular abundance, pigment concentrations (in preparation), particulate absorption, and colored dissolved organic matter absorption. The water samples were collected using a horizontal Niskin on board a Zodiac.";
    String summary_fr "Des données biogéochimiques ont été collectées du 16 août au 25 août 2023 dans les eaux côtières de l'Île d'Anticosti. Ce jeu de données comprend les paramètres biogéochimiques analysés en laboratoire à partir d'échantillons d'eau, incluant la salinité, la chlorophylle a, la matière particulaire en suspension, les nutriments, l'abondance cellulaire, les concentrations pigmentaires (en préparation), l'absorption particulaire ainsi que l'absorption de la matière organique dissoute colorée. Les échantillons d'eau ont été collectés à l'aide d'une Niskin horizontale à bord d'un Zodiac.";
    String time_coverage_end "2023-08-25T13:30:00Z";
    String time_coverage_start "2023-08-16T20:30:00Z";
    String title "Biogeochemical Data from the Infralittoral Zone of the West Coast of Anticosti Island (2023) | Données biogéochimiques de la zone infralittorale de la côte ouest de l'Île d'Anticosti (2023)";
    Float64 Westernmost_Easting -64.42943;
  }
}

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its selection constraints (external link)

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.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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.