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Dataset Title:  MDDNR, Station Sandy Point - South Beach Subscribe RSS
Institution:  Maryland Department of Natural Resources (MDDNR)   (Dataset ID: mddnr_Sandy_Point_-_South_Beach)
Range: longitude = -76.40033 to -76.40033°E, latitude = 39.0075 to 39.0075°N, depth = 1.0 to 1.0m, time = 2017-04-05T15:30:00Z to 2021-09-28T05:02:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form
 
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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 1.4914062e+9, 1.63280532e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "time of observation";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  station_id {
    String ioos_category "Identifier";
  }
  station_name {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "station identifier";
    String short_name "Sandy_Pt._-_South_Beach";
    String standard_name "platform_name";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 39.0075, 39.0075;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "station latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -76.40033333, -76.40033333;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "station longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 actual_range 1.0, 1.0;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "depth of the sensor relative to sea surface";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  mass_concentration_of_oxygen_in_sea_water {
    Float64 _FillValue -9999.0;
    Float64 actual_range 2.4, 18.16;
    Float64 colorBarMaximum 500.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "time lat lon";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Dissolved O2";
    String long_name "dissolved oxygen concentration";
    Float64 missing_value -9999.0;
    String shortName "DO";
    String standard_name "mass_concentration_of_oxygen_in_sea_water";
    String units "mg/L";
  }
  sample_depth {
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.027, 3.0;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String coordinates "time lat lon";
    String ioos_category "Location";
    String long_name "sensor sampling depth";
    Float64 missing_value -9999.0;
    String positive "down";
    String shortName "sample_depth";
    String standard_name "depth";
    String units "m";
  }
  sea_water_temperature {
    Float64 _FillValue -9999.0;
    Float64 actual_range 6.04, 32.137;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "time lat lon";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Temperature";
    String long_name "sea water temperature";
    Float64 missing_value -9999.0;
    String shortName "Temp_C";
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
  sea_water_salinity {
    Float64 _FillValue -9999.0;
    Float64 actual_range 1.46, 28.0;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String coordinates "time lat lon";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Salinity";
    String long_name "sea water salinity";
    Float64 missing_value -9999.0;
    String shortName "Salinity";
    String standard_name "sea_water_practical_salinity";
  }
  fractional_saturation_of_oxygen_in_sea_water {
    Float64 _FillValue -9999.0;
    Float64 actual_range 28.0, 208.6;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "time lat lon";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Dissolved O2";
    String long_name "dissolved oxygen percent";
    Float64 missing_value -9999.0;
    String shortName "DO_pctSat";
    String standard_name "fractional_saturation_of_oxygen_in_sea_water";
    String units "percent";
  }
 }
  NC_GLOBAL {
    String acknowledgement "The Maryland Department of Natural Resources' continuous monitoring project is made possible with funding provided by The State of Maryland, the United States Environmental Protection Agency Chesapeake Bay Program, the National Oceanic and Atmospheric Administration Chesapeake Bay Office and National Estuarine Research Reserve System program, the Dominion Foundation, the National Fish and Wildlife Foundation, the Oyster Recovery Partnership, the National Aquarium in Baltimore, and The Nature Conservancy.";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_name, latitude, longitude";
    String comment "All current and prior years’ continuous monitoring data are available on the \\“Eyes on the Bay\\” website (www.eyesonthebay.net).  Annual Quality Assurance Project Plans and metadata records for the Maryland Department of Natural Resources, Chesapeake Bay Shallow Water Quality Monitoring Program can be found using publication type 'Quality Assurance Project Plan' and ‘Metadata’ to search the Monitoring News & Reports page (http://eyesonthebay.dnr.maryland.gov/eyesonthebay/stories.cfm) of the “Eyes on the Bay” website.";
    String Conventions "CF-1.6, ACDD-1.3, COARDS";
    String creator_email "eyesonthebay.dnr@maryland.gov";
    String creator_name "Maryland Department of Natural Resources Tidewater Ecosystem Assessment Division";
    String creator_url "http://eyesonthebay.dnr.maryland.gov/";
    String date_created "2021-09-28T15:53:09Z";
    String date_issued "2021-09-28T15:53:09Z";
    String date_metadata_modified "2021-09-28T15:53:09Z";
    String date_modified "2021-09-28T15:53:09Z";
    Float64 Easternmost_Easting -76.40033333;
    String featureType "TimeSeries";
    String geospatial_bounds "POINT(39.0075 -76.40033333)";
    String geospatial_bounds_crs "EPSG:4326";
    String geospatial_bounds_vertical_crs "EPSG:4297";
    Float64 geospatial_lat_max 39.0075;
    Float64 geospatial_lat_min 39.0075;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -76.40033333;
    Float64 geospatial_lon_min -76.40033333;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 1.0;
    Float64 geospatial_vertical_min 1.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"Created by the RPS harvester from data at 'http://eyesonthebay.dnr.maryland.gov/contmon/JustDownload.cfm' on 20181103 00:16
2024-10-10T01:34:58Z http://eyesonthebay.dnr.maryland.gov/
2024-10-10T01:34:58Z http://erddap.maracoos.org/tabledap/mddnr_Sandy_Point_-_South_Beach.das";
    String infoUrl "http://eyesonthebay.dnr.maryland.gov/eyesonthebay/ConMonStationTable.cfm";
    String institution "Maryland Department of Natural Resources (MDDNR)";
    String keywords "chemistry, chla, chlorophyll, chlorophyll-a, concentration, data, density, department, depth, dissolved, dissolved o2, earth, Earth Science > Oceans > Ocean Chemistry > Oxygen, Earth Science > Oceans > Ocean Chemistry > pH, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Salinity, fractional, fractional_saturation_of_oxygen_in_sea_water, identifier, latitude, longitude, maryland, mass, mass_concentration_of_oxygen_in_sea_water, mddnr, name, natural, O2, observation, ocean, oceans, oxygen, percent, platform, platform_name, practical, relative, reported, resources, salinity, salinity/density, sample_depth, sampling, saturation, scale, science, sea, sea_water_ph_reported_on_total_scale, sea_water_practical_salinity, sea_water_salinity, sea_water_temperature, seawater, sensor, station_name, surface, temperature, time, tolchester, total, u, u'Oceans > Salinity/Density > Salinity'u'Oceans > Ocean Chemistry > Oxygen'u'Oceans > Ocean Chemistry > Oxygen'u'Oceans > Ocean Chemistry > pH'u'Oceans > Ocean Temperature > Water Temperature', water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "None of the Chesapeake Bay Program partners or any of their employees, contractors, or subcontractors, including the Maryland Department of Natural Resources Tidewater Ecosystem Assessment Division, makes any warranty, expressed or implied, nor assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or data contained within the web site. Reference to any specific commercial products, processes, or services or the use of any trade, firm, or corporation name is for the information  and convenience of the public and does not constitute endorsement, recommendation or favoring by the Chesapeake Bay Program partners.";
    String Metadata_Conventions "Unidata Dataset Discovery v1.0";
    String metadata_link "http://eyesonthebay.dnr.maryland.gov/eyesonthebay/ConMonStationTable.cfm";
    String naming_authority "maryland.dnr";
    String NCO "netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    String nodc_template_version "NODC_NetCDF_TimeSeries_Orthogonal_Template_v2.0";
    Float64 Northernmost_Northing 39.0075;
    String platform "fixed";
    String processing_level "Automated data quality assurance checks performed";
    String project "Maryland Department of Natural Resources Shallow Water Monitoring Program. This program includes the continuous monitoring project, as well as water quality mapping of the tidal tributaries of Maryland’s Chesapeake Bay.";
    String publisher_country "USA";
    String publisher_email "devops@asascience.com";
    String publisher_institution "MARACOOS";
    String publisher_name "MARACOOS";
    String publisher_phone "(401) 789-6224";
    String publisher_type "institution";
    String publisher_url "http://www.maracoos.org";
    String references "http://eyesonthebay.dnr.maryland.gov/eyesonthebay/DataTypes.cfm";
    String source "http://eyesonthebay.dnr.maryland.gov/";
    String sourceUrl "http://eyesonthebay.dnr.maryland.gov/";
    Float64 Southernmost_Northing 39.0075;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "At continuous monitoring sites throughout Maryland, water quality is monitored at shallow water sites located in Chesapeake Bay, Chesapeake Bay tributaries and Maryland Coastal Bay tributaries. YSI (6600 V2 or EXO2) data loggers sample seven environmental parameters: water temperature, specific conductance, dissolved oxygen concentration, oxygen percent saturation, pH, turbidity and fluorescence. Water depth is measured at stations where loggers were deployed at fixed depths. Salinity and chlorophyll are derived from specific conductance and fluorescence, respectively. Each parameter is generally sampled at 15-minute intervals. Most continuous monitoring sites are deployed during the SAV growing season (April-October) with a few sites deployed year-round.";
    String time_coverage_duration "PT120S";
    String time_coverage_end "2021-09-28T05:02:00Z";
    String time_coverage_resolution "PT60S";
    String time_coverage_start "2017-04-05T15:30:00Z";
    String title "MDDNR, Station Sandy Point - South Beach";
    Float64 Westernmost_Easting -76.40033333;
  }
}

 

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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