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Dataset Title:  Fish abundance data from MOC-10 trawls from the ARSV Laurence M. Gould, RVIB
Nathaniel B. Palmer LMG0104, NBP0104, LMG0203, NBP0204 from the Southern Ocean,
2001-2002 (SOGLOBEC project)
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_2860)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 cruiseid ?              
 year (unitless) ?          2001    2002
 station ?              
 tow ?              
 yrday_gmt ?          106.0    250.0674
 month_gmt ?              
 day_gmt ?              
 time_start (HHmm) ?              
 latitude (degrees_north) ?          -69.7993    -65.9533
  < slider >
 longitude (degrees_east) ?          -76.1433    -67.0967
  < slider >
 depth_w (Depth, meters) ?              
 net ?              
 depth_range (Depth, meters) ?              
 depth_open (Depth, meters) ?          0    1000
 depth (m) ?          0.0    1000.0
  < slider >
 vol_filt (meters3) ?          1301    8100762
 family ?              
 species ?              
 date_gmt (unitless) ?              
 time_local (unitless) ?              
 count ?          0    3295
 abund_integ (#/m2) ?          0.0    12.050488
 biomass (grams 104m-3) ?          0.0    5560.5178
 biomass_integ (grams/m2) ?          0.0    14.305993
 
Server-side Functions ?
 distinct() ?
? (" ")

File type: (more info)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  cruiseid {
    String description "Cruise identifier, e.g.  en9402 R/V Endeavor cruise 9402";
    String ioos_category "Unknown";
    String long_name "Cruiseid";
  }
  year {
    Int16 _FillValue 32767;
    Int16 actual_range 2001, 2002;
    String description "Year, e.g. 1995. in�YYYY format";
    String ioos_category "Time";
    String long_name "Year";
    String units "unitless";
  }
  station {
    String description "Consecutive station number";
    String ioos_category "Identifier";
    String long_name "Station";
  }
  tow {
    String description "MOCNESS_10 tow number";
    String ioos_category "Unknown";
    String long_name "Tow";
  }
  yrday_gmt {
    Float32 _FillValue NaN;
    Float32 actual_range 106.0, 250.0674;
    String description "GMT day and decimal time, as 326.5 for the 326th day, or November 22 at 1200 hours (noon), for start of tow. Decimal portion of yrday is from time_start.";
    String ioos_category "Unknown";
    String long_name "Yrday Gmt";
  }
  month_gmt {
    String description "month of year, GMT time , i.e. 01-12 at start of tow";
    String ioos_category "Time";
    String long_name "Month Gmt";
  }
  day_gmt {
    String description "day, GMT time, e.g. 22, at start of tow.";
    String ioos_category "Time";
    String long_name "Day Gmt";
  }
  time_start {
    String description "starting time of observation, GMT time, 24 hour clock, GMT time";
    String ioos_category "Time";
    String long_name "Time Start";
    String units "HHmm";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range -69.7993, -65.9533;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "latitude- north is positive, negative denotes South";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -76.1433, -67.0967;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "longitude - east is positive, negative denotes West";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth_w {
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "water depth";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
    String units "meters";
  }
  net {
    String description "Net number or identification";
    String ioos_category "Unknown";
    String long_name "Net";
  }
  depth_range {
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "Observation or sample depth";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
    String units "meters";
  }
  depth_open {
    Int16 _FillValue 32767;
    Int16 actual_range 0, 1000;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "Depth at which the net is opened (specific to MOCNESS tows)";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
    String units "meters";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 1000.0;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "Depth at which the net is closed (specific to MOCNESS tows)";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  vol_filt {
    Int32 _FillValue 2147483647;
    Int32 actual_range 1301, 8100762;
    String description "volume of water filtered by the net";
    String ioos_category "Unknown";
    String long_name "Vol Filt";
    String units "meters3";
  }
  family {
    String description "Family.  One of the levels in the taxonomic system of classification; typically ends in 'ae'.";
    String ioos_category "Taxonomy";
    String long_name "Family";
  }
  species {
    String description "A binomial that consists of a genus name followed by the species name of an organism.";
    String ioos_category "Taxonomy";
    String long_name "Species";
  }
  date_gmt {
    String description "GMT sample date formatted as m/d/yyyy";
    String ioos_category "Time";
    String long_name "Date Gmt";
    String source_name "date_gmt";
    String units "unitless";
  }
  time_local {
    String description "sampling time in local time zone; formatted as HHMM";
    String ioos_category "Time";
    String long_name "Time Local";
    String units "unitless";
  }
  count {
    Int16 _FillValue 32767;
    Int16 actual_range 0, 3295;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String description "Number of individuals counted in sample or sample fraction";
    String ioos_category "Statistics";
    String long_name "Count";
  }
  abund_integ {
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 12.050488;
    String description "Number of the specific taxa/group counted per meter3";
    String ioos_category "Unknown";
    String long_name "Abund Integ";
    String units "#/m2";
  }
  biomass {
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 5560.5178;
    String description "Wet weight of a specific taxa/group identified, in units milligrams per meter3";
    String ioos_category "Unknown";
    String long_name "Biomass";
    String units "grams 104m-3";
  }
  biomass_integ {
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 14.305993;
    String description "Wet weight of a specific taxa/group identified";
    String ioos_category "Unknown";
    String long_name "Biomass Integ";
    String units "grams/m2";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
    String acquisition_description 
"#### Methodology:
 
Field work was done on four cruises conducted during the austral fall and
winter. Cruises 1 (2001) and 3 (2002) were aboard the Antarctic Research
Support Vessel (A.R.S.V.) Laurence M. Gould from April to June; cruises 2
(2001) and 4 (2002) were aboard the Research Vessel Ice Breaker (R.V.I.B.)
Nathaniel B. Palmer from July to September.
 
Samples were collected with a 10m2 MOCNESS (MOC-10) outfitted with six 3mm
mesh nets. The initial net fished obliquely to depth with each subsequent net
fishing a discrete depth layer upward to the surface. At stations with
depths>1000 m, layers sampled were 0-1000, 1000-500, 500-200, 200-100, 100-50,
and 50-0 m. At stations with depths >500 m, layers sampled were 0-500,
500-300, 300-200, 200-100, 100-50, and 50-0 m. At stations with depths <500 m,
sample layers were modified to provide optimal coverage of the water column
with the five discrete-depth nets.
 
A total of 62 MOC-10 trawls were done, 22 each in the fall of 2001 and 2002,
and 9 each in the winter of 2001 and 2002 (Table 1). Trawls were conducted at
various times throughout the day. In the fall, 37 trawls occurred at night
(18:00-06:00 h), 1 in daylight, and 6 at dusk. In the winter, seven trawls
occurred at night, seven in daylight, and four at twilight. Towing speed for
all tows was 1.5-2.2 knots. Tows in pack ice were conducted in leads created
by the ship's wake with the A-frame in to minimize the chance of hooking the
wire on ice floes. When ice conditions dictated, the ship first traversed a
trawling transect prior to deployment and then backtracked over the same
course through the created lead to insure that adequate speed could be
maintained for the duration of the tow.
 
[](\\\\\"http://globec.whoi.edu/images/so/MOC10_stationmap_Torres.bmp\\\\\")
 
Fig. 1. Trawling sites for (A) fall and (B) winter SO GLOBEC cruises; blue
circles: 2001 and red circles: 2002.";
    String awards_0_award_nid "54827";
    String awards_0_award_number "ANT-9910100";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=9910100";
    String awards_0_funder_name "NSF Antarctic Sciences";
    String awards_0_funding_acronym "NSF ANT";
    String awards_0_funding_source_nid "369";
    String awards_0_program_manager "Dr Polly  A Penhale";
    String awards_0_program_manager_nid "51478";
    String cdm_data_type "Other";
    String comment 
"Fish Abundance and Wet Weight from MOCNESS-10 trawls 
      Jose  Torres, PI 
      2001-2002 
      Push 'Flat listing' button at any level for spreadsheet view.";
    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 2.2d  13 Jun 2019";
    String date_created "2010-06-16T20:40:39Z";
    String date_modified "2019-02-20T17:32:04Z";
    String defaultDataQuery "&time";
    String doi "10.1575/1912/bco-dmo.2860.1";
    Float64 Easternmost_Easting -67.0967;
    Float64 geospatial_lat_max -65.9533;
    Float64 geospatial_lat_min -69.7993;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -67.0967;
    Float64 geospatial_lon_min -76.1433;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 1000.0;
    Float64 geospatial_vertical_min 0.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2019-11-14T01:29:34Z (local files)
2019-11-14T01:29:34Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2860.html";
    String infoUrl "https://www.bco-dmo.org/dataset/2860";
    String institution "BCO-DMO";
    String instruments_0_acronym "MOC10";
    String instruments_0_dataset_instrument_nid "4668";
    String instruments_0_description "The Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) is based on the Tucker Trawl principle (Tucker, 1951).  The MOCNESS-10 (with 10 m^2 nets) carries 6 nets of 3.0-mm circular mesh which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe et al., 1976). In this system, \"the underwater unit sends a data frame, comprising temperature, depth, conductivity, net-frame angle, flow count, time, number of open net, and net opening/closing, to the deck unit in a compressed hexadecimal format every 2 seconds and from the deck unit to a microcomputer every 4 seconds\" (Wiebe et al., 1985).";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/NETT0097/";
    String instruments_0_instrument_name "MOCNESS10";
    String instruments_0_instrument_nid "438";
    String instruments_0_supplied_name "MOCNESS10";
    String keywords "abund, abund_integ, bco, bco-dmo, biological, biomass, biomass_integ, chemical, count, cruiseid, data, dataset, date, day, day_gmt, depth, depth_close, depth_open, depth_range, depth_w, dmo, erddap, family, filt, identifier, integ, latitude, local, longitude, management, month, month_gmt, net, oceanography, office, preliminary, species, start, station, statistics, taxonomy, time, time_local, time_start, tow, vol, vol_filt, year, yrday, yrday_gmt";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String metadata_source "https://www.bco-dmo.org/api/dataset/2860";
    Float64 Northernmost_Northing -65.9533;
    String param_mapping "{'2860': {'lat': 'master - latitude', 'lon': 'master - longitude', 'depth_close': 'flag - depth'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/2860/parameters";
    String people_0_affiliation "University of South Florida";
    String people_0_affiliation_acronym "USF";
    String people_0_person_name "Dr Joseph  J. Torres";
    String people_0_person_nid "50487";
    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 BCO-DMO";
    String people_1_person_name "Nancy Copley";
    String people_1_person_nid "50396";
    String people_1_role "BCO-DMO Data Manager";
    String people_1_role_type "related";
    String project "U.S. GLOBEC Southern Ocean";
    String projects_0_acronym "SOGLOBEC";
    String projects_0_description "The fundamental objectives of United States Global Ocean Ecosystems Dynamics (U.S. GLOBEC) Program are dependent upon the cooperation of scientists from several disciplines. Physicists, biologists, and chemists must make use of data collected during U.S. GLOBEC field programs to further our understanding of the interplay of physics, biology, and chemistry. Our objectives require quantitative analysis of interdisciplinary data sets and, therefore, data must be exchanged between researchers. To extract the full scientific value, data must be made available to the scientific community on a timely basis.";
    String projects_0_geolocation "Southern Ocean";
    String projects_0_name "U.S. GLOBEC Southern Ocean";
    String projects_0_project_nid "2039";
    String projects_0_project_website "http://www.ccpo.odu.edu/Research/globec_menu.html";
    String projects_0_start_date "2001-01";
    String publisher_name "Nancy Copley";
    String publisher_role "BCO-DMO Data Manager(s)";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -69.7993;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "Fish abundance data from MOC-10 trawls from the ARSV Laurence M. Gould, RVIB Nathaniel B. Palmer LMG0104, NBP0104, LMG0203, NBP0204 from the Southern Ocean, 2001-2002 (SOGLOBEC project)";
    String title "Fish abundance data from MOC-10 trawls from the ARSV Laurence M. Gould, RVIB Nathaniel B. Palmer LMG0104, NBP0104, LMG0203, NBP0204 from the Southern Ocean, 2001-2002 (SOGLOBEC project)";
    String version "1";
    Float64 Westernmost_Easting -76.1433;
    String xml_source "osprey2erddap.update_xml() v1.5-beta";
  }
}

 

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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