Accessing BCO-DMO data
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BCO-DMO ERDDAP
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| Dataset Title: | Rosette Bottle Data (nutrients and chlorophyll) from R/V Alpha Helix cruises HX242, HX244, HX247, HX271, and HX275 to the Coastal Gulf of Alaska from 2001- 2003 as part of the U.S. GLOBEC program (NEP project) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_2474) |
| Information: | Summary
| License
| ISO 19115
| Metadata
| Background
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Attributes {
s {
cruiseid {
String bcodmo_name "cruiseid";
String description "Short-hand name of the cruise.";
String long_name "Cruiseid";
String units "text";
}
year {
Int16 _FillValue 32767;
Int16 actual_range 2001, 2003;
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";
}
cast {
String bcodmo_name "cast";
String description "CTD Cast Number.";
String long_name "Cast";
String units "dimensionless";
}
station_std {
String bcodmo_name "station_std";
String description "Standard Station Name.";
String long_name "Station Std";
String units "dimensionless";
}
station {
String bcodmo_name "station";
String description "Alternate Station Name, used on cruise.";
String long_name "Station";
String units "dimensionless";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range 58.097, 60.595;
String axis "Y";
String bcodmo_name "latitude";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "latitude, N is positive";
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 -150.419, -146.6074;
String axis "X";
String bcodmo_name "longitude";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "longitude, W is negative";
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";
}
date_local {
String bcodmo_name "date_local";
String description "Month/Day/Year.";
String long_name "Date Local";
String units "mm/dd/yy";
}
time_local {
String bcodmo_name "time_local";
String description "Local time, 24-hour clock.";
String long_name "Time Local";
String units "HHMM";
}
yrday_local {
Float32 _FillValue NaN;
Float32 actual_range 106.7951, 222.3542;
String bcodmo_name "yrday_local";
String description "Julian day";
String long_name "Yrday Local";
String units "Jan. 1 = 1, decimal day, for plotting";
}
event {
String bcodmo_name "event";
String description "Event number used on cruise.";
String long_name "Event";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/";
String units "eg. ev#001 = 1";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float64 _FillValue NaN;
Float64 actual_range 0.0, 134.0;
String axis "Z";
String bcodmo_name "depth";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String description "target depth for bottle to trip";
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";
}
depth_real {
Float32 _FillValue NaN;
Float32 actual_range 0.9, 135.1;
String bcodmo_name "unknown";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String description "actual depth bottle tripped";
String long_name "Depth";
String standard_name "depth";
String units "meters";
}
chla_gt_20um {
Float32 _FillValue NaN;
Float32 actual_range 0.003, 14.286;
String bcodmo_name "chl_a_20u";
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
String description "chlorophyll a concentration in water that passed through 20 micron filter";
String long_name "Concentration Of Chlorophyll In Sea Water";
String units "micrograms/liter";
}
chla_5_to_20 {
Float32 _FillValue NaN;
Float32 actual_range 0.003, 1.22;
String bcodmo_name "unknown";
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
String description "chlorophyll a concentration in water that passed through 20 micron filter and caught on 5 micron filter";
String long_name "Concentration Of Chlorophyll In Sea Water";
String units "micrograms/liter";
}
chla_lt_5 {
Float32 _FillValue NaN;
Float32 actual_range 0.006, 2.071;
String bcodmo_name "chl_a_5u";
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
String description "chlorophyll a concentration in water that passed through 5 micron filter";
String long_name "Concentration Of Chlorophyll In Sea Water";
String units "micrograms/liter";
}
chla_total {
Float32 _FillValue NaN;
Float32 actual_range 0.017, 15.437;
String bcodmo_name "chlorophyll a";
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
String description "total chlorophyll a concentration";
String long_name "Concentration Of Chlorophyll In Sea Water";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/";
String units "micrograms/liter";
}
PO4 {
Float32 _FillValue NaN;
Float32 actual_range 0.04, 1.879;
String bcodmo_name "PO4";
String description "phosphate concentration";
String long_name "Mass Concentration Of Phosphate In Sea Water";
String units "micromoles/L";
}
Si {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 35.466;
String bcodmo_name "SiOH_4";
String description "silicate concentration";
String long_name "Mass Concentration Of Silicate In Sea Water";
String units "micromoles/L";
}
NO3 {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 25.7;
String bcodmo_name "unknown";
Float64 colorBarMaximum 50.0;
Float64 colorBarMinimum 0.0;
String description "nitrate (after subtracting NO2 from total nitrate)";
String long_name "Mole Concentration Of Nitrate In Sea Water";
String units "micromoles/L";
}
NO2 {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.68;
String bcodmo_name "unknown";
Float64 colorBarMaximum 1.0;
Float64 colorBarMinimum 0.0;
String description "nitrite concentration";
String long_name "Mole Concentration Of Nitrite In Sea Water";
String units "micromoles/L";
}
temp {
Float32 _FillValue NaN;
Float32 actual_range 4.27, 15.767;
String bcodmo_name "temperature";
String description "temperature";
String long_name "Temperature";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/";
String units "degrees C";
}
sal {
Float32 _FillValue NaN;
Float32 actual_range 16.02, 33.38;
String bcodmo_name "sal";
String description "salinity";
String long_name "Sal";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/";
String units "psu (unitless)";
}
sigma_t {
Float32 _FillValue NaN;
Float32 actual_range 11.778, 26.29;
String bcodmo_name "sigma-t";
String description "sigma-t density";
String long_name "Sigma T";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/SIGTEQST/";
String units "kg/m3";
}
flvolt {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 4.89;
String bcodmo_name "fluor voltage";
String description "fluorometer reading";
String long_name "Flvolt";
String units "volts";
}
par_v {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 4.25;
String bcodmo_name "par_v";
String description "photosynthetically available radiation";
String long_name "Par V";
String units "volts";
}
month_local {
String bcodmo_name "month_local";
String description "Month, local time.";
String long_name "Month Local";
String units "mm (01 to 12)";
}
day_local {
String bcodmo_name "day_local";
String description "Day of month, local time.";
String long_name "Day Local";
String units "dd (01 to 31)";
}
}
NC_GLOBAL {
String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
String acquisition_description
"Water column chlorophyll samples were size-fractionated using a 'fractionation
cascade' . Water passed through a sequential arrangement of three filters: 20
um pore-size polycarbonate (47 mm), 5 um pore-size polycarbonate (47 mm) and
0.7 um effective pore-size glass fiber (25 mm). Preliminary tests showed that
47-mm glass fiber filters had a reduced chlorophyll extraction efficiency
compared with filters 25 mm in diameter. Filters were immediately placed in
90% acetone, extracted 24 hr (-20degC, darkness), and analyzed for chlorophyll
and phaeopigments a on a Turner TD700 (April, May) or Turner 112 (July)
fluorometer. Total chlorophyll concentrations were estimated from the sum of
the three size fractions.";
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
"Bottle data from CGOA process cruises
Suzanne Strom
see documentation for explanation of variables";
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 "2009-11-29T11:16:27Z";
String date_modified "2019-11-28T17:12:18Z";
String defaultDataQuery "&time<now";
String doi "10.1575/1912/bco-dmo.2474.1";
Float64 Easternmost_Easting -146.6074;
Float64 geospatial_lat_max 60.595;
Float64 geospatial_lat_min 58.097;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -146.6074;
Float64 geospatial_lon_min -150.419;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 134.0;
Float64 geospatial_vertical_min 0.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2024-04-19T23:45:28Z (local files)
2024-04-19T23:45:28Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2474.html";
String infoUrl "https://www.bco-dmo.org/dataset/2474";
String institution "BCO-DMO";
String instruments_0_acronym "Niskin bottle";
String instruments_0_dataset_instrument_description "Niskin bottle cast, use Bottle_Niskin";
String instruments_0_dataset_instrument_nid "4199";
String instruments_0_description "A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24 or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.";
String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/";
String instruments_0_instrument_name "Niskin bottle";
String instruments_0_instrument_nid "413";
String instruments_0_supplied_name "Niskin Bottle";
String keywords "altimetry, available, bco, bco-dmo, biological, cast, chemical, chemistry, chla_5_to_20, chla_gt_20um, chla_lt_5, chla_total, chlorophyll, concentration, concentration_of_chlorophyll_in_sea_water, cruiseid, data, dataset, date, date_local, day, day_local, depth, depth_real, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Ocean Chemistry > Phosphate, Earth Science > Oceans > Ocean Chemistry > Silicate, erddap, event, flvolt, laboratory, latitude, local, longitude, management, mass, mass_concentration_of_phosphate_in_sea_water, mass_concentration_of_silicate_in_sea_water, mole, mole_concentration_of_nitrate_in_sea_water, mole_concentration_of_nitrite_in_sea_water, month, month_local, n02, nitrate, nitrite, NO2, no3, ocean, oceanography, oceans, office, par, par_v, phosphate, photosynthetically, po4, preliminary, profiler, radiation, sal, salinity, salinity-temperature-depth, satellite, science, sea, seawater, sigma, sigma_t, silicate, station, station_std, std, temperature, time, time_local, v, water, year, yrday, yrday_local";
String keywords_vocabulary "GCMD Science Keywords";
String license "https://www.bco-dmo.org/dataset/2474/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/2474";
Float64 Northernmost_Northing 60.595;
String param_mapping "{'2474': {'lat': 'flag - latitude', 'depth': 'flag - depth', 'lon': 'flag - longitude'}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/2474/parameters";
String people_0_affiliation "Western Washington University";
String people_0_affiliation_acronym "WWU";
String people_0_person_name "Suzanne Strom";
String people_0_person_nid "50471";
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 "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 "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 58.097;
String standard_name_vocabulary "CF Standard Name Table v55";
String summary "Rosette Bottle Data (nutrients and chlorophyll) from R/V Alpha Helix cruises HX242, HX244, HX247, HX271, and HX275 to the Coastal Gulf of Alaska from 2001-2003 as part of the U.S. GLOBEC program.";
String title "Rosette Bottle Data (nutrients and chlorophyll) from R/V Alpha Helix cruises HX242, HX244, HX247, HX271, and HX275 to the Coastal Gulf of Alaska from 2001-2003 as part of the U.S. GLOBEC program (NEP project)";
String version "1";
Float64 Westernmost_Easting -150.419;
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.