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| Dataset Title: | [Dissolved Nutrient Analyses for CTD water rosette and AUV Sentry/SUPR Samples] - Dissolved Nutrient Analyses for CTD water rosette samples and AUV Sentry/SUPR samples in the hydrothermal plumes emanating from the Main Endeavor region of the Juan de Fuca Ridge collected from R/V Atlantis cruise AT50-15 from Aug 28 to Sep 15 2023 (Collaborative Research: Hydrothermal Estuaries: What Sets the Hydrothermal Flux of Fe and Mn to the Oceans?)
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_964606_v1) |
| Information: | Summary
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Attributes {
s {
CRUISE_ID {
String long_name "Cruise_id";
String units "unitless";
}
CRUISE_NAME {
String long_name "Cruise_name";
String units "unitless";
}
SENTRY_SUPR_DIVE {
String long_name "Sentry_supr_dive";
String units "unitless";
}
DATE {
String long_name "Date";
String units "unitless";
}
START_EVENT {
String long_name "Start_event";
String units "unitless";
}
ISO_DateTime_UTC_START_EVENT {
Float64 actual_range 1.6931817e+9, 1.69474746e+9;
String ioos_category "Time";
String long_name "Iso_datetime_utc_start_event";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
END_EVENT {
String long_name "End_event";
String units "unitless";
}
ISO_DateTime_UTC_END_EVENT {
Float64 actual_range 1.69318896e+9, 1.69475436e+9;
String ioos_category "Time";
String long_name "Iso_datetime_utc_end_event";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
START_EVENT_LAT {
Float32 actual_range 47.91125, 47.98883;
String long_name "Start_event_lat";
String units "degrees_north";
}
START_EVENT_LON {
Float32 actual_range -129.235, -129.0817;
String long_name "Start_event_lon";
String units "degrees_east";
}
END_EVENT_LAT {
Float32 actual_range 47.91397, 47.98192;
String long_name "End_event_lat";
String units "degrees_north";
}
END_EVENT_LON {
Float32 actual_range -129.235, -129.0813;
String long_name "End_event_lon";
String units "degrees_east";
}
STNNBR {
Int32 actual_range 2, 19;
String long_name "Stnnbr";
String units "unitless";
}
FEATURE {
String long_name "Feature";
String units "unitless";
}
FEATURE_COMMENTS {
String long_name "Feature_comments";
String units "unitless";
}
SAMPLE_METHOD {
String long_name "Sample_method";
String units "unitless";
}
EVENT {
String long_name "Event";
String units "unitless";
}
SUPR_PORT {
Int32 actual_range 1, 18;
String long_name "Supr_port";
String units "unitless";
}
SUPR_BOTTLE {
Int32 actual_range 1, 14;
String long_name "Supr_bottle";
String units "unitless";
}
SUPR_FILTERED_VOLUME {
Float32 actual_range 8.61, 52.09;
String long_name "Supr_filtered_volume";
String units "liters";
}
CTD_CAST {
Int32 actual_range 1, 4;
String long_name "Ctd_cast";
String units "unitless";
}
CTD_ROSETTE_POSITION {
Int32 actual_range 1, 12;
String long_name "Ctd_rosette_position";
String units "unitless";
}
CTD_NISKIN_BOTTLE {
Int32 actual_range 1, 12;
String long_name "Ctd_niskin_bottle";
String units "unitless";
}
CRUISE_SAMPNO {
Int32 actual_range 1001, 1321;
String long_name "Cruise_sampno";
String units "unitless";
}
LOCATION_FLAG {
String long_name "Location_flag";
String units "unitless";
}
DEPTH {
Float32 actual_range 1152.0, 2541.0;
String long_name "Depth";
String units "m";
}
CTD_ROSETTE_ACTUAL_DEPTH {
Float32 actual_range 1794.48, 2534.257;
String long_name "Ctd_rosette_actual_depth";
String units "m";
}
BOTTOM_DEPTH {
Int32 actual_range 2155, 2564;
String long_name "Bottom_depth";
String units "meters (m)";
}
SILICATE_CONC {
Float32 actual_range 2.0, 185.6;
String long_name "Silicate_conc";
String units "µmol/L";
}
PHOSPHATE_CONC {
Float32 actual_range 0.32, 3.21;
String long_name "Phosphate_conc";
String units "µmol/L";
}
NITRATE_CONC {
Float32 actual_range 0.0, 43.73;
String long_name "Nitrate_conc";
String units "µmol/L";
}
NITRITE_CONC {
Float32 actual_range 0.0, 0.03;
String long_name "Nitrite_conc";
String units "µmol/L";
}
AMMONIUM_CONC {
Float32 actual_range 0.0, 0.88;
String long_name "Ammonium_conc";
String units "µmol/L";
}
NUTRIENT_LAB_TEMP {
Float32 actual_range 18.9, 20.8;
String long_name "Nutrient_lab_temp";
String units "Celsius";
}
NUTRIENT_FLAG {
String long_name "Nutrient_flag";
String units "unitless";
}
KNOWN_CTD_BOTTLE_ISSUE {
String long_name "Known_ctd_bottle_issue";
String units "unitless";
}
KNOWN_SUPR_PORT_ISSUE {
String long_name "Known_supr_port_issue";
String units "unitless";
}
}
NC_GLOBAL {
String cdm_data_type "Other";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_email "info@bco-dmo.org";
String creator_name "BCO-DMO";
String creator_url "https://www.bco-dmo.org/";
String doi "10.26008/1912/bco-dmo.964606.1";
String history
"2026-06-18T02:36:37Z (local files)
2026-06-18T02:36:37Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_964606_v1.html";
String infoUrl "https://osprey.bco-dmo.org/dataset/964606";
String institution "BCO-DMO";
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 sourceUrl "(local files)";
String summary "These data include dissolved concentrations of silicate, nitrate, nitrite, ammonium, and ortho-phosphate in water samples collected from within and around hydrothermal plumes emanating from the vent systems in the Main Endeavor region of the Juan de Fuca Ridge. They were collected during a cruise on R/V Atlantis AT50-15 from August 28th to September 15th 2023. Samples were collected in two different ways with two different instruments and these methods are identified in the data file. One method collected whole water samples as vertical profiles with a trace metal grade water rosette where the samples were filtered on deck through 0.2 um Sterivex PES filters. The other method collected water samples with AUV Sentry equipped with a SUPR in situ sample collection system and this system filtered water in situ at the time of collection through 0.2 um SUPOR PES filters; these samples were collected in horizontal surveys as the AUV flew a gridded survey through plume depths. The AUV samples were collected while the AUV was in motion and since they were also filtering for particulate material for separate analyses, the associated water samples are an integrated mixture of waters from segments of the survey line and not point samples. The coverage for either modes of collection are variable as we were targeting hydrothermal plume anomalies. The purpose of this data is to provide environmental context to plume particulate hydrothermal chemistry e.g. phosphate adsorption and as a check on the proper function of both sampling systems, i.e. anomalous nutrient data can be an indication of misfires or leaks when compared to expected nutrient concentrations, notes of this potential are including the data set in the nutrient flag column. This data will be useful to compare to future datasets concerning trace metals from the Hydrothermal Estuaries project. Users interested in nutrient concentrations in a hydrothermal plume environment may find this useful. These samples were analyzed at the UC San Diego Oceanographic Data Facility using standard methods for dissolved nutrients (silicate, orthophosphate, nitrate, nitrite, and ammonium) in seawater. John Breier was responsible for the nutrient samples collected with AUV Sentry and the SUPR sampler. Jessica Fitzsimmons was responsible for samples collected with the trace metal rosette. These samples were collected as part of the Hydrothermal Estuaries study led by Chris German.";
String title "[Dissolved Nutrient Analyses for CTD water rosette and AUV Sentry/SUPR Samples] - Dissolved Nutrient Analyses for CTD water rosette samples and AUV Sentry/SUPR samples in the hydrothermal plumes emanating from the Main Endeavor region of the Juan de Fuca Ridge collected from R/V Atlantis cruise AT50-15 from Aug 28 to Sep 15 2023 (Collaborative Research: Hydrothermal Estuaries: What Sets the Hydrothermal Flux of Fe and Mn to the Oceans?)";
}
}
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and its
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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.