Accessing BCO-DMO data
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BCO-DMO ERDDAP
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| Dataset Title: | [allADCP] - ADCP 600 and 150 KHz 5 minute and 1 hour averages; along track and shallow and deep sites; from R/V Seward Johnson SJ9506 and SJ9508 cruises?in the Gulf of Maine and Georges Bankareas during 1995 (GB project) (U.S. GLOBEC Georges Bank) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_2412) |
| Information: | Summary
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| FGDC
| ISO 19115
| Metadata
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Attributes {
s {
cruiseid {
String bcodmo_name "unknown";
String description "cruise/file identification";
String long_name "Cruiseid";
}
beam {
String bcodmo_name "beam_cp";
String long_name "Beam";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ATTNZZ01/";
String units "unknown";
}
frequency {
String bcodmo_name "unknown";
String long_name "Frequency";
}
site {
String bcodmo_name "site";
String long_name "Site";
}
bin {
String bcodmo_name "unknown";
String long_name "Bin";
}
year {
Int16 _FillValue 32767;
Int16 actual_range 1995, 1995;
String bcodmo_name "year";
String description "year";
String long_name "Year";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/";
}
yrday_gmt {
Float64 _FillValue NaN;
Float64 actual_range 114.93125, 166.45625;
String bcodmo_name "yrday0_gmt";
String description "year day and decimal time, Jan 1 is year day 0";
String long_name "Yrday Gmt";
String units "GMT";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range 40.57, 41.52;
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 -70.59, -67.14;
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";
}
press {
Float64 _FillValue NaN;
Float64 actual_range 4.74, 137.0;
String bcodmo_name "pressure";
String description "depth of observation, reported as pressure";
String long_name "Press";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PRESPR01/";
String units "decibars";
}
u {
Float32 _FillValue NaN;
Float32 actual_range -142.8, 137.4;
String bcodmo_name "u";
String description "east component of currents, east = positive";
String long_name "U";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/LCEWZZ01/";
String units "centimeters/second";
}
v {
Float32 _FillValue NaN;
Float32 actual_range -143.0, 126.967;
String bcodmo_name "v";
String description "north component of current, north = positive";
String long_name "V";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/LCNSZZ01/";
String units "centimeters/second";
}
}
NC_GLOBAL {
String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
String acquisition_description "SJ9508 NB 150 kHz ADCP 5 minute average";
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 "SJ9506 BB 600 kHz ADCP 5 minute average";
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 "2009-11-24T18:29:13Z";
String date_modified "2019-08-06T21:07:35Z";
String defaultDataQuery "&time<now";
String doi "10.1575/1912/bco-dmo.2412.1";
Float64 Easternmost_Easting -67.14;
Float64 geospatial_lat_max 41.52;
Float64 geospatial_lat_min 40.57;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -67.14;
Float64 geospatial_lon_min -70.59;
String geospatial_lon_units "degrees_east";
String history
"2024-11-23T16:46:47Z (local files)
2024-11-23T16:46:47Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2412.html";
String infoUrl "https://www.bco-dmo.org/dataset/2412";
String institution "BCO-DMO";
String instruments_0_acronym "ADCP";
String instruments_0_dataset_instrument_description "Acoustic Doppler Current Profiler, encompasses an array of band widths and frequencies.RDI, broadband 150 and 600 kHz ADCP units.RDI, narrowband 150 kHz ADCP unit.";
String instruments_0_dataset_instrument_nid "4120";
String instruments_0_description
"The ADCP measures water currents with sound, using a principle of sound waves called the Doppler effect. A sound wave has a higher frequency, or pitch, when it moves to you than when it moves away. You hear the Doppler effect in action when a car speeds past with a characteristic building of sound that fades when the car passes.
The ADCP works by transmitting \"pings\" of sound at a constant frequency into the water. (The pings are so highly pitched that humans and even dolphins can't hear them.) As the sound waves travel, they ricochet off particles suspended in the moving water, and reflect back to the instrument. Due to the Doppler effect, sound waves bounced back from a particle moving away from the profiler have a slightly lowered frequency when they return. Particles moving toward the instrument send back higher frequency waves. The difference in frequency between the waves the profiler sends out and the waves it receives is called the Doppler shift. The instrument uses this shift to calculate how fast the particle and the water around it are moving.
Sound waves that hit particles far from the profiler take longer to come back than waves that strike close by. By measuring the time it takes for the waves to bounce back and the Doppler shift, the profiler can measure current speed at many different depths with each series of pings. (More from WHOI instruments listing).";
String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/115/";
String instruments_0_instrument_name "Acoustic Doppler Current Profiler";
String instruments_0_instrument_nid "405";
String instruments_0_supplied_name "Acoustic Doppler Current Profiler";
String keywords "bco, bco-dmo, beam, bin, biological, chemical, cruiseid, data, dataset, dmo, erddap, frequency, latitude, longitude, management, oceanography, office, preliminary, press, site, u, v, year, yrday, yrday_gmt";
String license "https://www.bco-dmo.org/dataset/2412/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/2412";
Float64 Northernmost_Northing 41.52;
String param_mapping "{'2412': {'lat': 'master - latitude', 'press': 'flag - depth', 'lon': 'master - longitude'}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/2412/parameters";
String people_0_affiliation "University of Rhode Island";
String people_0_affiliation_acronym "URI-GSO";
String people_0_person_name "Dave Hebert";
String people_0_person_nid "50409";
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 "Robert C. Groman";
String people_1_person_nid "50380";
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 40.57;
String standard_name_vocabulary "CF Standard Name Table v55";
String subsetVariables "year";
String summary "ADCP 600 and 150 KHz 5 minute and 1 hour averages; along track and shallow and deep sites; from R/V Seward Johnson SJ9506 and SJ9508 cruises?in the Gulf of Maine and Georges Bankareas during 1995 (GB project)";
String title "[allADCP] - ADCP 600 and 150 KHz 5 minute and 1 hour averages; along track and shallow and deep sites; from R/V Seward Johnson SJ9506 and SJ9508 cruises?in the Gulf of Maine and Georges Bankareas during 1995 (GB project) (U.S. GLOBEC Georges Bank)";
String version "1";
Float64 Westernmost_Easting -70.59;
String xml_source "osprey2erddap.update_xml() v1.3";
}
}
Data Access Protocol (DAP) and its
selection constraints.
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.