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Dataset Title:  [ETNP 2018-2019 suspended POM concentrations and isotopes] - Suspended Organic
Particle concentration and stable C and N isotopes from the Eastern Tropical
North Pacific in April 2018 (R/V Roger Revelle RR1805) and October 2019 (R/V
Kilo Moana KM1920) (Dimensions: Diversity, assembly and function of microbial
communities on suspended and sinking particles in a marine Oxygen Deficient
Zone)
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_948637_v1)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 Cruise (unitless) ?          "KM1920"    "RR1805"
 station (unitless) ?          "P1"    "P3"
 Cast (unitless) ?          25    67
 latitude (degrees_north) ?          16.81    21.86
  < slider >
 longitude (degrees_east) ?          -109.98    -106.0
  < slider >
 Date (unitless) ?          "2018-04-17"    "2019-10-15"
 depth (m) ?          10    800
  < slider >
 d13C_VPDB (permil (0/00)) ?          -31.73    -23.97
 Carbon (micromolar (uM)) ?          0.67    5.23
 d15N_Air (permil (0/00)) ?          4.03    10.38
 Nitrogen (micromolar (uM)) ?          0.05    0.95
 C_to_N (unitless) ?          2.74    13.44
 
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 distinct() ?
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File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Cruise {
    String long_name "Cruise";
    String units "unitless";
  }
  station {
    String long_name "Station";
    String units "unitless";
  }
  Cast {
    Int32 actual_range 25, 67;
    String long_name "Cast";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 16.81, 21.86;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -109.98, -106.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Date {
    String long_name "Date";
    String units "unitless";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Int32 actual_range 10, 800;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  d13C_VPDB {
    Float32 actual_range -31.73, -23.97;
    String long_name "D13c_vpdb";
    String units "permil (0/00)";
  }
  Carbon {
    Float32 actual_range 0.67, 5.23;
    String long_name "Carbon";
    String units "micromolar (uM)";
  }
  d15N_Air {
    Float32 actual_range 4.03, 10.38;
    String long_name "D15n_air";
    String units "permil (0/00)";
  }
  Nitrogen {
    Float32 actual_range 0.05, 0.95;
    String long_name "Nitrogen";
    String units "micromolar (uM)";
  }
  C_to_N {
    Float32 actual_range 2.74, 13.44;
    String long_name "C_to_n";
    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.948637.1";
    Float64 Easternmost_Easting -106.0;
    Float64 geospatial_lat_max 21.86;
    Float64 geospatial_lat_min 16.81;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -106.0;
    Float64 geospatial_lon_min -109.98;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 800.0;
    Float64 geospatial_vertical_min 10.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-02-10T06:59:10Z (local files)
2025-02-10T06:59:10Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_948637_v1.html";
    String infoUrl "https://www.bco-dmo.org/dataset/948637";
    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.";
    Float64 Northernmost_Northing 21.86;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 16.81;
    String summary 
"Suspended Organic Particle Carbon and Nitrogen concentrations and stable C and N isotopes were obtained from the Eastern Tropical North Pacific on the R/V Revelle cruise RR1805 in April 2018 and the R/V Kilo Moana cruise KM1920 in October 2019. R/V Revelle cruise RR1805 sampled two stations in 2018: St P2 (16.9ºN 107ºW) and St P1 (20.3 °N 106.1°W). These two stations included an anoxic Oxygen Deficient Zone from 105-820 m for St P2 and 68-800 m for St P1. The R/V Kilo Moana cruise KM1920 sampled two stations in 2019: St P2 (16.9°N 107°W) and St P3 (21.8°N  109.9°W). These two stations included an anoxic Oxygen Deficient Zone from 110-820 m for St P2 and 160-650 m for St P3. St P3 is at the Northern Edge of the Oxygen Deficient Zone. St P2 is offshore in the core of the Oxygen Deficient Zone, and St P1 is on the continental slope.  

During both cruises, water for bulk suspended particulate organic C and N analyses was obtained from Niskin bottles on a CTD rosette and vacuum-filtered it onto pre-combusted GF/F filters. Samples were wafted with HCl to remove carbonate and sent to the UC Davis Stable Isotope Facility (Davis, CA) for C and N analysis utilizing an elemental analyzer attached to an isotope ratio mass spectrometer. 

The samples were obtained to determine whether organic matter concentrations increased and isotopic composition changed at the secondary chlorophyll maximum in the Oxygen Deficient Zone and at the zooplankton/forage fish vertical migration depth in the Oxygen Deficient Zone.  St P2 and St P1  had a secondary chlorophyll maximum and St P3 did not. 

Samples were collected and data were analyzed by Clara Fuchsman of Horn Point Laboratory, a part of the University of Maryland Center for Environmental Science.";
    String title "[ETNP 2018-2019 suspended POM concentrations and isotopes] - Suspended Organic Particle concentration and stable C and N isotopes from the Eastern Tropical North Pacific in April 2018 (R/V Roger Revelle RR1805) and October 2019 (R/V Kilo Moana KM1920) (Dimensions: Diversity, assembly and function of microbial communities on suspended and sinking particles in a marine Oxygen Deficient Zone)";
    Float64 Westernmost_Easting -109.98;
  }
}

 

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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.

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For example,
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