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Dataset Title:  Atlantic Canada Microplastic Research Project (2017-2020) Subscribe RSS
Institution:  Coastal Action   (Dataset ID: coastal_action_7471_9460_c025)
Range: longitude = -65.82806 to -57.9092°E, latitude = 44.22284 to 49.122665°N, time = 2018-06-11T09:41:00Z to 2018-10-31T11:46:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.52871006e+9, 1.54098636e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Start Datetime";
    String source_name "start_datetime";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  end_datetime {
    Float64 actual_range 1.52871126e+9, 1.54098756e+9;
    String ioos_category "Time";
    String long_name "End Datetime";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  date_collected {
    Float64 actual_range 1.5286752e+9, 1.540944e+9;
    String ioos_category "Time";
    String long_name "Date Collected";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  study_area {
    String ioos_category "Location";
    String long_name "Study Area";
  }
  location {
    String cf_role "timeseries_id";
    String ioos_category "Location";
    String long_name "Location";
  }
  sample_id {
    String ioos_category "Identifier";
    String long_name "Sample Id";
  }
  plastic_id {
    String ioos_category "Identifier";
    String long_name "Plastic Id";
  }
  type {
    String ioos_category "Identifier";
    String long_name "Type";
  }
  size_class {
    String ioos_category "Identifier";
    String long_name "Size Class";
  }
  colour {
    String ioos_category "Identifier";
    String long_name "Colour";
  }
  colour_2 {
    String ioos_category "Identifier";
    String long_name "Colour 2";
  }
  erosion {
    String ioos_category "Identifier";
    String long_name "Erosion";
  }
  erosion_type {
    String ioos_category "Identifier";
    String long_name "Erosion Type";
  }
  erosion_type_2 {
    String ioos_category "Identifier";
    String long_name "Erosion Type 2";
  }
  beaufort_sea_state {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 0, 4;
    String ioos_category "Location";
    String long_name "Beaufort Sea State";
  }
  trawl_speed {
    String ioos_category "Currents";
    String long_name "Trawl Speed";
    String units "knots";
  }
  time_in {
    String ioos_category "Time";
    String long_name "Time In";
  }
  time_out {
    String ioos_category "Time";
    String long_name "Time Out";
  }
  total_time {
    String ioos_category "Time";
    String long_name "Total Time";
    String units "minutes";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 44.22283889, 49.12266667;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "latitude_in";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -65.82805591, -57.9092;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "longitude_in";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude_out {
    Float64 _FillValue NaN;
    Float64 actual_range 44.22415833, 49.1084833;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude_out {
    Float64 _FillValue NaN;
    Float64 actual_range -65.76555528, -57.91243333;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  flowmeter_in {
    Int32 _FillValue 2147483647;
    Int32 actual_range 0, 999871;
    String ioos_category "Other";
    String long_name "Flowmeter In";
    String units "counts";
  }
  flowmeter_out {
    Int32 _FillValue 2147483647;
    Int32 actual_range 23888, 982063;
    String ioos_category "Other";
    String long_name "Flowmeter Out";
    String units "counts";
  }
  distance_travelled {
    Float64 _FillValue NaN;
    Float64 actual_range 182.52, 2381.43;
    String ioos_category "Location";
    String long_name "Distance Travelled";
    String units "m";
  }
  trawl_time {
    Int16 _FillValue 32767;
    Int16 actual_range 600, 1260;
    String ioos_category "Time";
    String long_name "Trawl Time";
    String units "s";
  }
  speed {
    Float64 _FillValue NaN;
    Float64 actual_range 15.210133, 198.45;
    String ioos_category "Currents";
    String long_name "Speed";
    String units "cm s-1";
  }
  surface_area {
    Float64 _FillValue NaN;
    Float64 actual_range 13.24803, 172.85;
    String ioos_category "Other";
    String long_name "Surface Area";
    String units "m2";
  }
  notes {
    String ioos_category "Other";
    String long_name "Notes";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "date_collected, study_area, location, type, size_class";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Coastal Action";
    String creator_type "person";
    String creator_url "https://www.coastalaction.org/microplastics.html";
    Float64 Easternmost_Easting -57.9092;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 49.12266667;
    Float64 geospatial_lat_min 44.22283889;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -57.9092;
    Float64 geospatial_lon_min -65.82805591;
    String geospatial_lon_units "degrees_east";
    String history 
"2022-11-28T21:30:04Z (local files)
2022-11-28T21:30:04Z https://cioosatlantic.ca/tabledap/coastal_action_7471_9460_c025.das";
    String infoUrl "https://www.coastalaction.org/microplastics.html";
    String institution "Coastal Action";
    String keywords "2017-2020, action, area, array, array-data, atlantic, beaufort, beaufort_sea_state, canada, class, coastal, collected, colour, colour_2, comprehensive, currents, data, date, date_collected, datetime, distance, distance_travelled, end, end_datetime, erosion, erosion_type, erosion_type_2, flowmeter, flowmeter_in, flowmeter_out, identifier, large, latitude, latitude_out, longitude, longitude_out, microplastic, notes, oceanography, out, physical, physical oceanography, plastic, plastic_id, project, research, sample, sample_id, sea, size, size_class, speed, start, state, stewardship, study, study_area, surface, surface_area, system, time, time_in, time_out, total, total_time, travelled, trawl, trawl_speed, trawl_time, type";
    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 49.12266667;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 44.22283889;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "date_collected, study_area, location, type, size_class";
    String summary "The purpose of the Atlantic Canada Microplastic Research Project (2017-2020) is to determine the quantity of microplastics in 3 near-shore communities of Atlantic Canada.  Data will be used to better inform the conversation and solutions around plastic pollution in the region.  The project is funded by Environment and Climate Change Canada and is in partnership with Clean Annapolis River Project (CARP), ACAP Humber Arm, and Dr. Max Liboiron at the Civic Laboratory for Environmental Action Research (CLEAR) out of Memorial University of Newfoundland (MUN).  Dr.  Max Liboiron is our chief academic advisor on the 3-year project, assisting with project development, methods and protocol, and sampling design.  The project included sampling both surface water and beach sediment at all three study locations.  The surface water trawling equipment was built using CLEAR's low-aquatic debris instrument (LADI) design.  This document contains the results from the 2018 surface water samples.  Sediment data results for 2018 and hot-spot data from 2019 will be available in 2020.";
    String time_coverage_end "2018-10-31T11:46:00Z";
    String time_coverage_start "2018-06-11T09:41:00Z";
    String title "Atlantic Canada Microplastic Research Project (2017-2020)";
    Float64 Westernmost_Easting -65.82805591;
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

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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