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Dataset Title:  Photosynthetically available radiation (PAR) from R/V Endeavor cruises in the
Gulf of Maine and Georges Bank in 1995 as part of the U.S. GLOBEC program (GB
project)
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_2476)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Subset | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 cruiseid ?          "EN259"    "EN267A"
 platform ?      
   - +  ?
 region ?      
   - +  ?
 cast ?          1    14
 station ?          "1"    "ST-2"
 day_local ?          "01"    "31"
 month_local ?          1    6
 year_local ?      
   - +  ?
 timezone ?          4    5
 latitude (degrees_north) ?          40.52    42.327
  < slider >
 longitude (degrees_east) ?          -69.02    -66.287
  < slider >
 time_local (hours and minutes) ?          744.07    1958.1832
 depth (m) ?          0.01    64.76
  < slider >
 par_d (microEinstein/meter^2/second PAR (400-700nm)) ?          0.08347    2564.0
 par_platform (microEinstein/meter^2/second PAR (400-700nm)) ?          44.36    2193.0
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")

File type: (more info)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  cruiseid {
    String bcodmo_name "cruiseid";
    String description "Cruise identification";
    String long_name "Cruiseid";
  }
  platform {
    String bcodmo_name "platform";
    String description "Platform name";
    String long_name "Platform";
  }
  region {
    String bcodmo_name "region";
    String description "Geographical region";
    String long_name "Region";
  }
  cast {
    Byte _FillValue 127;
    Byte actual_range 1, 14;
    String bcodmo_name "cast";
    String description "Cast number";
    String long_name "Cast";
  }
  station {
    String bcodmo_name "station";
    String description "Station number or identifier";
    String long_name "Station";
  }
  day_local {
    String bcodmo_name "day_local";
    String description "Local day";
    String long_name "Day Local";
  }
  month_local {
    Byte _FillValue 127;
    Byte actual_range 1, 6;
    String bcodmo_name "month_local";
    String description "Local month";
    String long_name "Month Local";
  }
  year_local {
    Int16 _FillValue 32767;
    Int16 actual_range 1995, 1995;
    String bcodmo_name "unknown";
    String description "Local year";
    String long_name "Year Local";
  }
  timezone {
    Byte _FillValue 127;
    Byte actual_range 4, 5;
    String bcodmo_name "timezone";
    String description "Time zone correction for GMT conversion, modified to account for day light savings time";
    String long_name "Timezone";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 40.52, 42.327;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude, negative = South";
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -69.02, -66.287;
    String axis "X";
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude, negative = West";
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time_local {
    Float64 _FillValue NaN;
    Float64 actual_range 744.07, 1958.1832;
    String bcodmo_name "time_local";
    String description "Local time";
    String long_name "Time Local";
    String units "hours and minutes";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 0.01, 64.76;
    String axis "Z";
    String bcodmo_name "depth";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "Depth of sample";
    String ioos_category "Location";
    String long_name "Depth";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  par_d {
    Float32 _FillValue NaN;
    Float32 actual_range 0.08347, 2564.0;
    String bcodmo_name "par_d";
    String description "downwelling photosynthetically activeradiation with cosine sensor response";
    String long_name "Par D";
    String units "microEinstein/meter^2/second PAR (400-700nm)";
  }
  par_platform {
    Float32 _FillValue NaN;
    Float32 actual_range 44.36, 2193.0;
    String bcodmo_name "unknown";
    String description "downwelling photosynthetically activeradiation with cosine sensor response, from ship's deck";
    String long_name "Par Platform";
    String units "microEinstein/meter^2/second PAR (400-700nm)";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
    String acquisition_description 
"Photosynthetically Available Radiation. All profiles were taken with the same
two (Biospherical Instruments, Inc. San Diego, CA) instruments: underwater
unit (PUV-500) and matched deck unit (PUV-510). Last Calibration of Sensors:
15 DEC 95.";
    String awards_0_award_nid "54610";
    String awards_0_award_number "unknown GB NSF";
    String awards_0_funder_name "National Science Foundation";
    String awards_0_funding_acronym "NSF";
    String awards_0_funding_source_nid "350";
    String awards_0_program_manager "David L. Garrison";
    String awards_0_program_manager_nid "50534";
    String awards_1_award_nid "54626";
    String awards_1_award_number "unknown GB NOAA";
    String awards_1_funder_name "National Oceanic and Atmospheric Administration";
    String awards_1_funding_acronym "NOAA";
    String awards_1_funding_source_nid "352";
    String cdm_data_type "Other";
    String comment 
"Displayed by /data5/jvankeuren/scripts/par_level1.pl, v1.00/31Mar1998 
   For cruise=EN259 
 Displayed by /data5/jvankeuren/scripts/par_level2.pl, v1.01/15May2000 
   File=/data5/jvankeuren/par/P1125AF.TXT 
  Sensor Surface Response (both): Cosine 
  inst: Biospherical Inst. PUV-500, PUV-510 
  Last Calibration of Sensors: 15 DEC 95 
  NOTES: Upcast and downcast profiles sorted 
  separately by depth, then time. Downcast listed 
  first. Raw values listed - no averaging.";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_type "institution";
    String creator_url "https://www.bco-dmo.org/";
    String data_source "extract_data_as_tsv version 2.3  19 Dec 2019";
    String date_created "2009-11-25T14:51:45Z";
    String date_modified "2019-11-28T17:24:38Z";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.1575/1912/bco-dmo.2476.1";
    Float64 Easternmost_Easting -66.287;
    Float64 geospatial_lat_max 42.327;
    Float64 geospatial_lat_min 40.52;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -66.287;
    Float64 geospatial_lon_min -69.02;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 64.76;
    Float64 geospatial_vertical_min 0.01;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-05-25T21:03:55Z (local files)
2024-05-25T21:03:55Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2476.html";
    String infoUrl "https://www.bco-dmo.org/dataset/2476";
    String institution "BCO-DMO";
    String instruments_0_acronym "PAR sensor";
    String instruments_0_dataset_instrument_description "Photosynthetically Available Radiation Sensors. Biospherical Inst. PUV-500, PUV-510.  Last Calibration of Sensors";
    String instruments_0_dataset_instrument_nid "4195";
    String instruments_0_description "A PAR sensor measures photosynthetically available (or active) radiation.  The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis.  This instrument name is used when specific type, make and model are not known.";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/122/";
    String instruments_0_instrument_name "Photosynthetically Available Radiation Sensor";
    String instruments_0_instrument_nid "439";
    String instruments_0_supplied_name "Photosynthetically Available Radiation Sensors";
    String instruments_1_acronym "Radiometer";
    String instruments_1_dataset_instrument_description "underwater unit (PUV-500) and matched deck unit (PUV-510).Last Calibration of Sensors";
    String instruments_1_dataset_instrument_nid "4148";
    String instruments_1_description "Radiometer is a generic term for a range of instruments used to measure electromagnetic radiation (radiance and irradiance) in the atmosphere or the water column.  For example, this instrument category includes free-fall spectral radiometer (SPMR/SMSR System, Satlantic, Inc), profiling or deck cosine PAR units (PUV-500 and 510, Biospherical Instruments, Inc).  This is a generic term used when specific type, make and model were not specified.";
    String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/122/";
    String instruments_1_instrument_name "Radiometer";
    String instruments_1_instrument_nid "442";
    String instruments_1_supplied_name "Radiometer";
    String keywords "available, bco, bco-dmo, biological, cast, chemical, cruiseid, data, dataset, day, day_local, depth, dmo, erddap, latitude, local, longitude, management, month, month_local, oceanography, office, par, par_d, par_platform, photosynthetically, platform, preliminary, radiation, region, station, time, time_local, timezone, year, year_local";
    String license "https://www.bco-dmo.org/dataset/2476/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/2476";
    Float64 Northernmost_Northing 42.327;
    String param_mapping "{'2476': {'lat': 'flag - latitude', 'depth': 'flag - depth', 'lon': 'flag - longitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/2476/parameters";
    String people_0_affiliation "Woods Hole Oceanographic Institution";
    String people_0_affiliation_acronym "WHOI";
    String people_0_person_name "Jeff Van Keuren";
    String people_0_person_nid "50493";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Woods Hole Oceanographic Institution";
    String people_1_affiliation_acronym "WHOI";
    String people_1_person_name "Ms Dicky Allison";
    String people_1_person_nid "50382";
    String people_1_role "BCO-DMO Data Manager";
    String people_1_role_type "related";
    String project "GB";
    String projects_0_acronym "GB";
    String projects_0_description 
"The U.S. GLOBEC Georges Bank Program is a large multi- disciplinary multi-year oceanographic effort. The proximate goal is to understand the population dynamics of key species on the Bank - Cod, Haddock, and two species of zooplankton (Calanus finmarchicus and Pseudocalanus) - in terms of their coupling to the physical environment and in terms of their predators and prey. The ultimate goal is to be able to predict changes in the distribution and abundance of these species as a result of changes in their physical and biotic environment as well as to anticipate how their populations might respond to climate change.
The effort is substantial, requiring broad-scale surveys of the entire Bank, and process studies which focus both on the links between the target species and their physical environment, and the determination of fundamental aspects of these species' life history (birth rates, growth rates, death rates, etc).
Equally important are the modelling efforts that are ongoing which seek to provide realistic predictions of the flow field and which utilize the life history information to produce an integrated view of the dynamics of the populations.
The U.S. GLOBEC Georges Bank Executive Committee (EXCO) provides program leadership and effective communication with the funding agencies.";
    String projects_0_geolocation "Georges Bank, Gulf of Maine, Northwest Atlantic Ocean";
    String projects_0_name "U.S. GLOBEC Georges Bank";
    String projects_0_project_nid "2037";
    String projects_0_project_website "http://globec.whoi.edu/globec_program.html";
    String projects_0_start_date "1991-01";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 40.52;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "platform,region,year_local";
    String summary "Photosynthetically available radiation (PAR) from R/V Endeavor cruises in the Gulf of Maine and Georges Bank in 1995 as part of the U.S. GLOBEC program";
    String title "Photosynthetically available radiation (PAR) from R/V Endeavor cruises in the Gulf of Maine and Georges Bank in 1995 as part of the U.S. GLOBEC program (GB project)";
    String version "1";
    Float64 Westernmost_Easting -69.02;
    String xml_source "osprey2erddap.update_xml() v1.3";
  }
}

 

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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