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Dataset Title:  [Chesapeake Bay Nutrients 2022] - Nutrients from CTD casts conducted on R/V
Hugh R. Sharp cruise HRS2212 in the Chesapeake Bay during August 2022 (Nitrite
Oxidation in Oxygen Minimum Zones)
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_896169_v1)
Information:  Summary ? | License ? | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 Cast (unitless) ?          1    14
 Station (unitless) ?          "CB1.5"    "CB2"
 Date (unitless) ?          "2022-08-12"    "2022-08-19"
 Latitude (decimal degrees) ?          38.5652    38.99719
 Longitude (decimal degrees) ?          -76.44069    -76.36647
 Depth (meters (m)) ?          2.83    22.45
 NH4 (micromolar (uM)) ?          0.018    16.162
 NH4_stdev (micromolar (uM)) ?          0.002    0.661
 NO2 (micromolar (uM)) ?          0.053    7.371
 NO2_stdev (micromolar (uM)) ?          0.0    0.943
 NO3 (micromolar (uM)) ?          0.0    1.272
 NO3_stdev (micromolar (uM)) ?          0.0    0.641
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")

File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Cast {
    Int32 actual_range 1, 14;
    String long_name "Cast";
    String units "unitless";
  }
  Station {
    String long_name "Station";
    String units "unitless";
  }
  Date {
    String long_name "Date";
    String units "unitless";
  }
  Latitude {
    Float32 actual_range 38.5652, 38.99719;
    String long_name "Latitude";
    String units "decimal degrees";
  }
  Longitude {
    Float32 actual_range -76.44069, -76.36647;
    String long_name "Longitude";
    String units "decimal degrees";
  }
  Depth {
    Float32 actual_range 2.83, 22.45;
    String long_name "Depth";
    String units "meters (m)";
  }
  NH4 {
    Float32 actual_range 0.018, 16.162;
    String long_name "Nh4";
    String units "micromolar (uM)";
  }
  NH4_stdev {
    Float32 actual_range 0.002, 0.661;
    String long_name "Nh4_stdev";
    String units "micromolar (uM)";
  }
  NO2 {
    Float32 actual_range 0.053, 7.371;
    String long_name "No2";
    String units "micromolar (uM)";
  }
  NO2_stdev {
    Float32 actual_range 0.0, 0.943;
    String long_name "No2_stdev";
    String units "micromolar (uM)";
  }
  NO3 {
    Float32 actual_range 0.0, 1.272;
    String long_name "No3";
    String units "micromolar (uM)";
  }
  NO3_stdev {
    Float32 actual_range 0.0, 0.641;
    String long_name "No3_stdev";
    String units "micromolar (uM)";
  }
 }
  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.896169.1";
    String history 
"2024-11-20T14:21:31Z (local files)
2024-11-20T14:21:31Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_896169_v1.html";
    String infoUrl "https://www.bco-dmo.org/dataset/896169";
    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 "This dataset includes nutrient data from R/V Hugh R. Sharp cruise HRS2212 in the Chesapeake Bay during August 2022.";
    String title "[Chesapeake Bay Nutrients 2022] - Nutrients from CTD casts conducted on R/V Hugh R. Sharp cruise HRS2212 in the Chesapeake Bay during August 2022 (Nitrite Oxidation in Oxygen Minimum Zones)";
  }
}

 

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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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