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Dataset Title:  SmartBay Observatory Fluorometer data   RSS
Institution:  Marine Institute   (Dataset ID: galway_obs_fluorometer)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 instrument_id ?      
   - +  ?
 longitude (degrees_east) ?              
 latitude (degrees_north) ?              
 depth (depth of measurement, m) ?              
 time (time of measurement, UTC) ?              
 fluorescence_wavelength (nm) ?              
 chl_count ?              
 chlorophyll (ug/l) ?              
 turbidity_wavelength (nm) ?              
 ntu_count ?              
 turbidity (turbidity of the water, NTU) ?              
 thermistor ?              
 clock_date ?              
 clock_time ?              
 
Server-side Functions ?
 distinct() ?
? (" ")

File type: (more info)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  instrument_id {
    String ioos_category "Identifier";
    String long_name "Instrument Id";
    String sdn_instrument_name "WETLabs ECO-FLNTU";
    String sdn_instrument_urn "SDN:L22::TOOL0215";
    String sdn_parameter_name "Serial number of instrument";
    String sdn_parameter_urn "SDN:P01::SERNUMZZ";
    String sdn_units_name "Not applicable";
    String sdn_units_urn "SDN:P06::XXXX";
    String sensor_manufacturer "WETLabs";
    String sensor_model "WETLabs ECO-FLNTU combined fluorometer and turbidity sensor";
    String sensor_mount "mounted_on_benthic_node";
    String sensor_reference "https://www.seabird.com/asset-get.download-en.jsa?id=55011465401";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String coordinate_reference_frame "urn:ogc:def:crs:EPSG::4326";
    String ioos_category "Location";
    String long_name "longitude of measurement";
    String Processing_level "Instrument data that has been converted to geophysical values";
    String QC_indicator "unknown";
    String reference "WGS84";
    String sdn_parameter_name "Longitude east";
    String sdn_parameter_urn "SDN:P01::ALONZZ01";
    String sdn_units_name "Degrees east";
    String sdn_units_urn "SDN:P06::DEGE";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  latitude {
    String _CoordinateAxisType "Lat";
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String coordinate_reference_frame "urn:ogc:def:crs:EPSG::4326";
    String ioos_category "Location";
    String long_name "latitude of measurement";
    String Processing_level "Instrument data that has been converted to geophysical values";
    String QC_indicator "unknown";
    String reference "WGS84";
    String sdn_parameter_name "Latitude north";
    String sdn_parameter_urn "SDN:P01::ALATZZ01";
    String sdn_units_name "Degrees north";
    String sdn_units_urn "SDN:P06::DEGN";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    String axis "Z";
    String coordinate_reference_frame "urn:ogc:def:crs:EPSG::5715";
    String ioos_category "Location";
    String long_name "depth of measurement";
    String positive "down";
    String Processing_level "Instrument data that has been converted to geophysical values";
    String QC_indicator "unknown";
    String reference "mean_sea_level";
    String sdn_parameter_name 
"Depth (spatial coordinate) relative to water surface in the water 
body";
    String sdn_parameter_urn "SDN:P01::ADEPZZ01";
    String sdn_units_name "Metres";
    String sdn_units_urn "SDN:P06::ULAA";
    String standard_name "depth";
    String units "m";
    Float64 valid_max 12000.0;
    Float64 valid_min 0.0;
  }
  time {
    String _CoordinateAxisType "Time";
    String axis "T";
    String calendar "julian";
    String ioos_category "Time";
    String long_name "time of measurement";
    String Processing_level "Instrument data that has been converted to geophysical values";
    String QC_indicator "unknown";
    String sdn_parameter_name "Elapsed time relative to 1970-01-01T00:00:00Z";
    String sdn_parameter_urn "SDN:P01::ELTMEP01";
    String sdn_units_name "Seconds";
    String sdn_units_urn "SDN:P06::UTBB";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  fluorescence_wavelength {
    String ioos_category "Other";
    String long_name "Fluorescence Wavelength";
    String units "nm";
  }
  chl_count {
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Other";
    String long_name "Chl Count";
  }
  chlorophyll {
    Float64 _FillValue -9999.0;
    String ancillary_variables "instrument_id fluorescence_wavelength chl_count";
    String cell_methods "point";
    String DM_indicator "R";
    String ioos_category "Optical Properties";
    String long_name "nominal chlorophyll-a concentration from manufacturer's calibration";
    String processing_level "Instrument data that has been converted to geophysical values";
    String QC_indicator "unknown";
    String resolution "0.025 ug/l";
    String sdn_instrument_name "WETLabs ECO-FLNTU";
    String sdn_instrument_urn "SDN:L22::TOOL0215";
    String sdn_parameter_name 
"Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume 
of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer and manufacturer's 
calibration applied";
    String sdn_parameter_urn "SDN:P01::CPHLPM01";
    String sdn_units_name "Micrograms per litre";
    String sdn_units_urn "SDN:P06::UGPL";
    String standard_name "mass_concentration_of_chlorophyll_in_sea_water";
    String units "ug/l";
    Float64 valid_max 50.0;
    Float64 valid_min 0.0;
  }
  turbidity_wavelength {
    String ioos_category "Other";
    String long_name "Turbidity Wavelength";
    String units "nm";
  }
  ntu_count {
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Other";
    String long_name "Ntu Count";
  }
  turbidity {
    Float64 _FillValue -9999.0;
    String ancillary_variables "instrument_id turbidity_wavelength ntu_count";
    String cell_methods "point";
    String DM_indicator "R";
    String ioos_category "Optical Properties";
    String long_name "turbidity of the water";
    String processing_level "Instrument data that has been converted to geophysical values";
    String QC_indicator "unknown";
    String resolution "0.013 NTU";
    String sdn_instrument_name "WETLabs ECO-FLNTU";
    String sdn_instrument_urn "SDN:L22::TOOL0215";
    String sdn_parameter_name "Turbidity of water in the water body";
    String sdn_parameter_urn "SDN:P01::TURBXXX";
    String sdn_units_name "Nephelometric Turbidity Units";
    String sdn_units_urn "SDN:P06::USTU";
    String standard_name "sea_water_turbidity";
    String units "NTU";
    Float64 valid_max 25.0;
    Float64 valid_min 0.0;
  }
  thermistor {
    String ioos_category "Unknown";
    String long_name "Thermistor";
  }
  clock_date {
    String ioos_category "Time";
    String long_name "Clock Date";
  }
  clock_time {
    String ioos_category "Time";
    String long_name "Clock Time";
  }
 }
  NC_GLOBAL {
    String acknowledgement 
"The SmartBay Observatory was funded in part by a grant from Science 
Foundation Ireland under Grant Number 12/RI/2331. Ongoing operation of the observatory is funded by the Marine 
Institute and Sustainable Energy Authority of Ireland.";
    String area "North Atlantic Ocean";
    String array "SmartBay";
    String cdm_data_type "Point";
    String contact "data_requests@marine.ie";
    String contributor_name "Alan Berry; Conall O'Malley; Rob Thomas";
    String contributor_role "ProjectManager; ProjectMember; DataManager";
    String Conventions 
"Copernicus-InSituTAC-FormatManual-1.4, SeaDataNet_1.0, CF-1.6, OceanSITES-1.3, 
ACDD-1.2, COARDS";
    String creator_name "Marine Institute";
    String creator_url "http://spiddal.marine.ie";
    String data_mode "R";
    String data_type "OceanSITES time-series data";
    String date_created "2015-09-30";
    String defaultDataQuery "&time>=now-10minutes";
    String defaultGraphQuery "time,turbidity&time>=now-45days&orderByClosest(\"time,1day\")&.draw=lines";
    String featureType "Point";
    String geospatial_lat_max "53.22733";
    String geospatial_lat_min "53.22733";
    String geospatial_lat_units "degrees_north";
    String geospatial_lon_max "-9.26629";
    String geospatial_lon_min "-9.26629";
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_max "20";
    String geospatial_vertical_min "20";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2020-04-20: Metadata attributes enhanced following OceanSITES and SeaDataNet 
attribute and vocabulary requirements.
        2020-05-13: Metadata attributes enhanced following Copernicus Marine In Situ NetCDF format manual.
2020-07-07T05:32:20Z (Cassandra)
2020-07-07T05:32:20Z https://erddap.marine.ie/erddap/tabledap/galway_obs_fluorometer.html";
    String id "ie.marine.data:dataset.3879";
    String infoUrl "http://data.marine.ie/geonetwork/srv/eng/catalog.search#/metadata/ie.marine.data:dataset.3879";
    String institution "Marine Institute";
    String institution_edmo_code "396";
    String institution_references "https://www.marine.ie";
    String keywords "Chlorophyll pigment concentrations in water bodies, Concentration of suspended \\nparticulate material in the water column";
    String keywords_vocabulary "SeaDataNet Parameter Discovery Vocabulary";
    String license "Creative Commons Attribution 4.0 (https://creativecommons.org/licenses/by/4.0/)";
    String licenseURL "https://creativecommons.org/licenses/by/4.0/legalcode";
    String naming_authority "Marine Institute";
    String principal_investigator "Paul Gaughan";
    String principal_investigator_email "paul.gaughan@marine.ie";
    String principal_investigator_url "https://www.smartbay.ie/";
    String processing_level "Instrument data that has been converted to geophysical values";
    String publisher_email "data_requests@marine.ie";
    String publisher_name "Marine Institute";
    String publisher_url "www.marine.ie";
    String QC_indicator "unknown";
    String source "fixed benthic node";
    String source_platform_category_code "11";
    String sourceUrl "(Cassandra)";
    String standard_name_vocabulary "CF Standard Name Table v72";
    String subsetVariables "instrument_id";
    String summary 
"The SmartBay Observatory in Galway Bay is an underwater observatory which uses 
cameras, probes and sensors to permit continuous and remote live underwater monitoring. It was installed in 2015 
on the seafloor 1.5km off the coast of Spiddal, Co. Galway, Ireland at a depth of 20-25m. Underwater 
observatories allow ocean researchers unique real-time access to monitor ongoing changes in the marine 
environment. The Galway Bay Observatory is an important contribution by Ireland to the growing global network of 
real-time data capture systems deployed in the ocean. Data relating to the marine environment at the Galway 
Observatory site is transferred in real-time through a fibre optic telecommunications cable to the Marine 
Institute headquarters and then made publically available on the internet. The data includes a live video 
stream, the depth of the observatory node, the water temperature and salinity, and estimates of the chlorophyll 
and turbidity levels in the water which give an indication of the volume of phytoplankton and other particles, 
such as sediment, in the water. Maintenance take place on the observatory every 18 to 24 months. A WetLabs 
ECO-FLNTU is installed on the observatory infrastructure. It measures the fluorescence of the seawater to give 
an estimate of the volume of chlorophyll present (indicative of the amount of phytoplankton in the seawater) and 
it measures turbidity, or the 'cloudiness' of the seawater, caused by the presence of particles such as sediment 
from the seabed suspended in the water. The sensor is deployed on the EMSO Smartbay Cable End Equipment Node in 
Galway Bay in approx. 25m depth of water.";
    String time_coverage_resolution "PT2S";
    String time_coverage_start "2015-09-30T12:49:00Z";
    String title "SmartBay Observatory Fluorometer data";
  }
}

 

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.

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.


 
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