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Dataset Title:  Trawl data from 14 R/V Pandalus cruises to the Coastal Gulf of Alaska from
1999-2004 as part of the U.S. GLOBEC program
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_2472)
Range: longitude = -149.7733 to -147.6399°E, latitude = 58.383 to 60.2097°N
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  cruise_id {
    String bcodmo_name "cruise_id";
    String description "Note that this group used non standard cruise names; this field uses the standard naming convention; 'cruise_alt' below is alternate name.";
    String long_name "Cruise Id";
    String units "text";
  }
  ship {
    String bcodmo_name "ship";
    String description "Name of the ship.";
    String long_name "Ship";
    String units "text";
  }
  year {
    Int16 _FillValue 32767;
    Int16 actual_range 1999, 2004;
    String bcodmo_name "year";
    String description "4-digit year in YYYY format.";
    String long_name "Year";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/";
    String units "unitless";
  }
  cruise_alt {
    String bcodmo_name "unknown";
    String description "Alternate cruise ID.";
    String long_name "Cruise Alt";
    String units "Text";
  }
  Trawl_ID {
    String bcodmo_name "unknown";
    String description "Concatenated station number and cast number (SxxCyy)";
    String long_name "Trawl ID";
    String units "station+cast numbers";
  }
  stn_no {
    Byte _FillValue 127;
    Byte actual_range 1, 30;
    String bcodmo_name "station";
    String description "Consecutive number of stations occupied during cruise.";
    String long_name "Stn No";
    String units "dimensionless";
  }
  cast {
    Byte _FillValue 127;
    Byte actual_range 1, 26;
    String bcodmo_name "cast";
    String description "Consecutive number of gear deployments during station.";
    String long_name "Cast";
    String units "dimensionless";
  }
  stn_std {
    String bcodmo_name "station_std";
    String description "Standard station.";
    String long_name "STN STD";
    String units "dimensionless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 58.383, 60.2097;
    String axis "Y";
    String bcodmo_name "lat_start";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude at start of measurement.";
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String source_name "lat_begin";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -149.7733, -147.6399;
    String axis "X";
    String bcodmo_name "lon_start";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude at start of measurment.";
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String source_name "lon_begin";
    String standard_name "longitude";
    String units "degrees_east";
  }
  lat_end {
    Float32 _FillValue NaN;
    Float32 actual_range 58.3828, 60.2214;
    String bcodmo_name "lat_end";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude at end of measurement.";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "decimal degrees";
  }
  lon_end {
    Float32 _FillValue NaN;
    Float32 actual_range -149.9967, -147.013;
    String bcodmo_name "lon_end";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude at end of measurement.";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String standard_name "longitude";
    String units "decimal degrees";
  }
  water_depth {
    String bcodmo_name "depth_w";
    String description "Depth of water.";
    String long_name "Water Depth";
    String units "meters ?";
  }
  month_local {
    Byte _FillValue 127;
    Byte actual_range 7, 10;
    String bcodmo_name "month_local";
    String description "2-digit month, local time.";
    String long_name "Month Local";
    String units "mm (01 to 12)";
  }
  day_local {
    Byte _FillValue 127;
    Byte actual_range 1, 31;
    String bcodmo_name "day_local";
    String description "2-digit day of month, local time.";
    String long_name "Day Local";
    String units "dd (01 to 31)";
  }
  time_start_local {
    String bcodmo_name "time_start_local";
    String description "Local time at start of measurement, 24-hour clock.";
    String long_name "Time Start Local";
    String units "HHMM";
  }
  time_end_local {
    String bcodmo_name "time_end_local";
    String description "Local time at end of measurement, 24-hour clock.";
    String long_name "Time End Local";
    String units "HHMM";
  }
  duration {
    Float32 _FillValue NaN;
    Float32 actual_range 0.08, 1.0;
    String bcodmo_name "unknown";
    String description "duration of trawl in hours";
    String long_name "Duration";
    String units "hours";
  }
  tow_dist {
    Float32 _FillValue NaN;
    Float32 actual_range 0.71, 2.39;
    String bcodmo_name "unknown";
    String description "distance towed in nautical miles";
    String long_name "Tow Dist";
    String units "nautical miles";
  }
  tow_speed {
    Float32 _FillValue NaN;
    Float32 actual_range 1.54, 3.5;
    String bcodmo_name "unknown";
    String description "in knots";
    String long_name "Tow Speed";
    String units "knots";
  }
  wave_ht {
    String bcodmo_name "unknown";
    String description "estimated wave conditions";
    String long_name "Wave Ht";
    String units "text";
  }
  wind_notes {
    String bcodmo_name "unknown";
    String description "estimated wind conditions";
    String long_name "Wind Notes";
    String units "text";
  }
  comments {
    String bcodmo_name "comment";
    String description "misc. comments";
    String long_name "Comments";
    String units "text";
  }
  common_name {
    String bcodmo_name "unknown";
    String description "Common name of the taxa.";
    String long_name "Common Name";
    String units "text";
  }
  genus_species {
    String bcodmo_name "taxon";
    String description "Taxonomic name.";
    String long_name "Genus Species";
    String units "text";
  }
  life_stage {
    String bcodmo_name "stage";
    String description "Life stage.";
    String long_name "Life Stage";
    String units "text";
  }
  abund {
    String bcodmo_name "unknown";
    String description "catch per tow";
    String long_name "Abund";
    String units "dimensionless";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
    String acquisition_description 
"Nordic 264 surface rope trawl (198-m long, 25-m wide, 35-m vertical height,
equipped with a 1.2-cm mesh liner in cod end) towed at the surface. Start
times for trawls are when all warp wire and doors have been let out, and end
times are when warp wire retrival begins i. Numbers of fish caught from an
event listed in this file may not match the count of number of fish measured
in the 'Glength_September_2005' file because in some cases the number of fish
measured was a subsample of total catch. For cruises G01-3 and G02-2 field
identifications of juvenile salmon were inconsistent. Pink, chum, and sockeye,
therefore, are all grouped under salmon, unidentified juvenile, as noted in
the comment column.";
    String awards_0_award_nid "54767";
    String awards_0_award_number "OCE-0109078";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0109078";
    String awards_0_funder_name "NSF Division of Ocean Sciences";
    String awards_0_funding_acronym "NSF OCE";
    String awards_0_funding_source_nid "355";
    String awards_0_program_manager "Phillip R. Taylor";
    String awards_0_program_manager_nid "50451";
    String awards_1_award_nid "55044";
    String awards_1_award_number "unknown NEP 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 
"trawl_lev1 datafile: TRAWL_PA9901.dat  
  trawl_lev2 datafile: TRAWL_PA9901_S1C1.dat";
    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 "2010-01-14T13:40:38Z";
    String date_modified "2019-11-28T16:48:14Z";
    String defaultDataQuery "&time<now";
    String doi "10.1575/1912/bco-dmo.2472.1";
    Float64 Easternmost_Easting -147.6399;
    Float64 geospatial_lat_max 60.2097;
    Float64 geospatial_lat_min 58.383;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -147.6399;
    Float64 geospatial_lon_min -149.7733;
    String geospatial_lon_units "degrees_east";
    String history 
"2022-08-12T09:22:55Z (local files)
2022-08-12T09:22:55Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_2472.das";
    String infoUrl "https://www.bco-dmo.org/dataset/2472";
    String institution "BCO-DMO";
    String instruments_0_acronym "Nordic Rope Trawl";
    String instruments_0_dataset_instrument_description "Nordic 264 surface rope trawl (198-m long, 25-m wide, 35-m vertical height, equipped with a 1.2-cm mesh liner in cod end) towed at the surface";
    String instruments_0_dataset_instrument_nid "4204";
    String instruments_0_description "A Nordic 264 surface rope trawl is a 198-m long, 25-m wide, 35-m vertical trawl net, equipped with a 1.2-cm mesh liner in the cod end and towed at the surface.";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/23/";
    String instruments_0_instrument_name "Nordic 264 Rope Trawl";
    String instruments_0_instrument_nid "466";
    String instruments_0_supplied_name "Nordic 264 Rope Trawl";
    String keywords "abund, bco, bco-dmo, biological, cast, chemical, comments, common, common_name, cruise, cruise_alt, cruise_id, data, dataset, day, day_local, depth, dist, dmo, duration, end, erddap, genus, genus_species, lat_end, latitude, life, life_stage, local, lon_end, longitude, management, month, month_local, name, notes, oceanography, office, preliminary, profiler, salinity, salinity-temperature-depth, ship, species, speed, stage, start, std, stn, stn_no, stn_std, temperature, time, time_end_local, time_start_local, tow, tow_dist, tow_speed, trawl, Trawl_ID, water, water_depth, wave, wave_ht, wind, wind_notes, year";
    String license "https://www.bco-dmo.org/dataset/2472/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/2472";
    Float64 Northernmost_Northing 60.2097;
    String param_mapping "{'2472': {'lon_begin': 'flag - longitude', 'lat_begin': 'flag - latitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/2472/parameters";
    String people_0_affiliation "University of Alaska Fairbanks";
    String people_0_affiliation_acronym "UAF";
    String people_0_person_name "Dr Jennifer  L Boldt";
    String people_0_person_nid "50478";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "University of Alaska Fairbanks";
    String people_1_affiliation_acronym "UAF";
    String people_1_person_name "Dr Lewis  J Haldorson";
    String people_1_person_nid "50477";
    String people_1_role "Co-Principal Investigator";
    String people_1_role_type "originator";
    String people_2_affiliation "University of Alaska Fairbanks";
    String people_2_affiliation_acronym "UAF";
    String people_2_person_name "Dr Jack Piccolo";
    String people_2_person_nid "50479";
    String people_2_role "Co-Principal Investigator";
    String people_2_role_type "originator";
    String people_3_affiliation "Woods Hole Oceanographic Institution";
    String people_3_affiliation_acronym "WHOI BCO-DMO";
    String people_3_person_name "Ms Dicky Allison";
    String people_3_person_nid "50382";
    String people_3_role "BCO-DMO Data Manager";
    String people_3_role_type "related";
    String project "NEP";
    String projects_0_acronym "NEP";
    String projects_0_description 
"Program in a Nutshell
Goal:  To understand the effects of climate variability and climate change on the distribution, abundance and production of marine animals (including commercially important living marine resources) in the eastern North Pacific. To embody this understanding in diagnostic and prognostic ecosystem models, capable of capturing the ecosystem response to major climatic fluctuations.
Approach: To study the effects of past and present climate variability on the population ecology and population dynamics of marine biota and living marine resources, and to use this information as a proxy for how the ecosystems of the eastern North Pacific may respond to future global climate change. The strong temporal variability in the physical and biological signals of the NEP will be used to examine the biophysical mechanisms through which zooplankton and salmon populations respond to physical forcing and biological interactions in the coastal regions of the two gyres. Annual and interannual variability will be studied directly through long-term observations and detailed process studies; variability at longer time scales will be examined through retrospective analysis of directly measured and proxy data. Coupled biophysical models of the ecosystems of these regions will be developed and tested using the process studies and data collected from the long-term observation programs, then further tested and improved by hindcasting selected retrospective data series.";
    String projects_0_geolocation "Northeast Pacific Ocean, Gulf of Alaska";
    String projects_0_name "U.S. GLOBEC Northeast Pacific";
    String projects_0_project_nid "2038";
    String projects_0_project_website "http://nepglobec.bco-dmo.org";
    String projects_0_start_date "1997-01";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 58.383;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "ship";
    String summary "Trawl data from 14 R/V Pandalus cruises to the Coastal Gulf of Alaska from 1999-2004 as part of the U.S. GLOBEC program";
    String title "Trawl data from 14 R/V Pandalus cruises to the Coastal Gulf of Alaska from 1999-2004 as part of the U.S. GLOBEC program";
    String version "1";
    Float64 Westernmost_Easting -149.7733;
    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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