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Dataset Title:  AQMET Air quality and meteorological measurements measured measured during
DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014.
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_733059)
Range: longitude = -75.1615 to -71.09364°E, latitude = 33.59607 to 38.893414°N
Information:  Summary ? | License ? | 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 {
  Index_number {
    Float32 _FillValue NaN;
    Float32 actual_range 1.0, 1440.0;
    String bcodmo_name "unknown";
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String description "Continuous numeric indicator of the number of observations from the start of the campaign";
    String long_name "Index Number";
    String units "number";
  }
  Seconds_utc {
    Float32 _FillValue NaN;
    Float32 actual_range 30.0, 86370.0;
    String bcodmo_name "time";
    String description "Seconds since the start of the campaign";
    String long_name "Seconds Utc";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/";
    String units "seconds";
  }
  Fract_day_of_year_utc {
    Float32 _FillValue NaN;
    Float32 actual_range 211.0003, 227.9997;
    String bcodmo_name "date";
    String description "Fractional day of year in UTC";
    String long_name "Fract Day Of Year Utc";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String units "days";
  }
  Year_utc {
    Float32 _FillValue NaN;
    Float32 actual_range 2014.0, 2014.0;
    String bcodmo_name "date";
    String description "Year of measurement in UTC";
    String long_name "Year Utc";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String units "year";
  }
  Month_utc {
    Float32 _FillValue NaN;
    Float32 actual_range 7.0, 8.0;
    String bcodmo_name "date";
    String description "Month of measurement in UTC";
    String long_name "Month Utc";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String units "month";
  }
  Day_of_month_utc {
    Float32 _FillValue NaN;
    Float32 actual_range 1.0, 31.0;
    String bcodmo_name "date";
    String description "Day of month of measurement";
    String long_name "Day Of Month Utc";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String units "day";
  }
  Hour_of_day_utc {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 23.0;
    String bcodmo_name "time";
    String description "Hour of day of measurement";
    String long_name "Hour Of Day Utc";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/";
    String units "hour";
  }
  Minute_of_hour_utc {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 59.0;
    String bcodmo_name "time";
    String description "Minute of hour of measurement";
    String long_name "Minute Of Hour Utc";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/";
    String units "minute";
  }
  Downwelling_shortwave_rad {
    Float32 _FillValue NaN;
    Float32 actual_range -4.5, 1219.8;
    String bcodmo_name "radiation_s";
    String description "Downwelling shortwave radiation from top of mast as measured by Eppley PSP";
    String long_name "Downwelling Shortwave Rad";
    String units "Watts per square meter";
  }
  Downwelling_longwave_rad {
    Float32 _FillValue NaN;
    Float32 actual_range 389.8, 507.5;
    String bcodmo_name "radiation_l";
    String description "Downwelling longwave radiation from the top of mast as measured by Eppley PIR";
    String long_name "Downwelling Longwave Rad";
    String units "Watts per square meter";
  }
  Accumulated_precip_mm {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 39.9;
    String bcodmo_name "precip_level";
    String description "Accumulated precipitation measured from the start of the campaign measured at the top of the mast as measured by RM Young 50202";
    String long_name "Accumulated Precip Mm";
    String units "millimeters";
  }
  Precipitation_flag {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 6.0;
    String bcodmo_name "unknown";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "Equal to 0 when it is not raining or an integer when it is raining corresponding to the event number";
    String long_name "Precipitation Flag";
    String units "number";
  }
  JNO2 {
    Float32 _FillValue NaN;
    Float32 actual_range -8.0e-5, 0.0083;
    String bcodmo_name "unknown";
    String description "Photolysis rate of NO2 measured at top of mast by Metcon 2-pi radiometer";
    String long_name "JNO2";
    String units "per second";
  }
  NO2 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.07, 90.69;
    String bcodmo_name "unknown";
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String description "Nitrogen dioxide measured on port side by cavity-attenuated phase shift (CAPS) analyzer (Aerodyne)";
    String long_name "Mole Concentration Of Nitrite In Sea Water";
    String units "ppbv";
  }
  O3 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.05, 72.88;
    String bcodmo_name "unknown";
    String description "Ozone measured on port side by UV absorption (Thermo 49C)";
    String long_name "O3";
    String units "ppbv";
  }
  CO {
    Float32 _FillValue NaN;
    Float32 actual_range 24.0, 1927.0;
    String bcodmo_name "unknown";
    String description "Carbon monoxide measured on port side by IR absorption (Thermo 48)";
    String long_name "CO";
    String units "ppbv";
  }
  NO {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 189.89;
    String bcodmo_name "unknown";
    String description "Nitric oxide measured on port side by chemiluminescence (Thermo 42C)";
    String long_name "NO";
    String units "ppbv";
  }
  NOx {
    Float64 _FillValue NaN;
    String bcodmo_name "unknown";
    String description "Sum of nitric oxide and nitrogen dioxide measured on port side by molybdenum conversion (320 deg C) of NO2 to NO and chemiluminescence";
    String long_name "NOx";
    String units "ppbv";
  }
  Plume_flag {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0;
    String bcodmo_name "unknown";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "Value equal to 1 indicates measurements were impacted by ship's plume; clean data have values equal to 0; Plume defined by relative (to ship) wind angles 40-140 deg and 170-190 deg and NO/NO2 ratio > 0.4";
    String long_name "Plume Flag";
    String units "number";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 33.596069, 38.893413;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Interpolated from the SPS Sharp data; Positive is in the Northern Hemisphere [range -90 to 90]";
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -75.161498, -71.093645;
    String axis "X";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Interpolated from the SPS Sharp data; Negative values correspond to the Western Hemisphere [range -180 to 180]";
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "longitude";
    String units "degrees_east";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
    String acquisition_description "\"\"";
    String awards_0_award_nid "726327";
    String awards_0_award_number "OCE-1260574";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1260574";
    String awards_0_funder_name "NSF Division of Ocean Sciences";
    String awards_0_funding_acronym "NSF OCE";
    String awards_0_funding_source_nid "355";
    String awards_0_program_manager "Henrietta N Edmonds";
    String awards_0_program_manager_nid "51517";
    String cdm_data_type "Other";
    String comment 
"AQMET Air quality and meteorological measurements 
 PI: R. Najjar (Penn State) 
 Dataset ID: 733059 
 Version: 1 
 Last updated: 2018-04-20";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_type "institution";
    String creator_url "https://www.bco-dmo.org/";
    String data_source "extract_data_as_tsv version 2.3  19 Dec 2019";
    String date_created "2018-04-05T18:14:42Z";
    String date_modified "2019-08-16T14:35:13Z";
    String defaultDataQuery "&time<now";
    String doi "10.1575/1912/bco-dmo.733059.1";
    Float64 Easternmost_Easting -71.093645;
    Float64 geospatial_lat_max 38.893413;
    Float64 geospatial_lat_min 33.596069;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -71.093645;
    Float64 geospatial_lon_min -75.161498;
    String geospatial_lon_units "degrees_east";
    String history 
"2020-07-03T17:11:24Z (local files)
2020-07-03T17:11:24Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_733059.das";
    String infoUrl "https://www.bco-dmo.org/dataset/733059";
    String institution "BCO-DMO";
    String instruments_0_acronym "Radiometer";
    String instruments_0_dataset_instrument_nid "734011";
    String instruments_0_description "Radiometer is a generic term for a range of instruments used to measure electromagnetic radiation (radiance and irradiance) in the atmosphere or the water column.  For example, this instrument category includes free-fall spectral radiometer (SPMR/SMSR System, Satlantic, Inc), profiling or deck cosine PAR units (PUV-500 and 510, Biospherical Instruments, Inc).  This is a generic term used when specific type, make and model were not specified.";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/122/";
    String instruments_0_instrument_name "Radiometer";
    String instruments_0_instrument_nid "442";
    String instruments_0_supplied_name "Metcon 2-pi radiometer";
    String instruments_1_acronym "Eppley PSP";
    String instruments_1_dataset_instrument_nid "734008";
    String instruments_1_description 
"This radiometer measures sun and sky irradiance in the range of wavelengths 0.285 to 2.8 microns, including most of the solar spectrum. The PSP is intended to weight the energy flux in all wavelengths equally. It is a \"hemispheric receiver\" intended to approximate the
cosine response for oblique rays. The Eppley Precision Spectral Pyranometer (PSP) is primarily used where high accuracy is required or where it is used to calibrate other pyranometers.  The PSP outputs a low level voltage ranging from 0 to a maximum of about 12mV depending on sensor calibration and  radiation level.   An instruction manual provided by Eppley contains the sensor calibration constant and serial number.  The Precision Spectral Pyranometer is a World Meteorological Organization First Class Radiometer and comes with a calibration certificate traceable to the World Radiation Reference and a temperature compensation curve.  More information is available from Eppley Labs.";
    String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/112/";
    String instruments_1_instrument_name "Precision Spectral Pyranometer";
    String instruments_1_instrument_nid "483";
    String instruments_1_supplied_name "Eppley PSP";
    String instruments_2_acronym "Eppley PIR";
    String instruments_2_dataset_instrument_nid "734009";
    String instruments_2_description "The Eppley Precision Infrared Radiometer (PIR) pyrgeometer measures longwave (infrared) radiation. It is housed in a weatherproof titanium canister that has been painted with a very flat black paint that absorbs radiation. A small glass dome at the top of the instrument is covered with an 'interference coating' which allows only infrared radiation to come through. Light levels are detected as temperature changes creating voltages in fine wire coil detectors.  more from Eppley Labs";
    String instruments_2_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0083/";
    String instruments_2_instrument_name "Eppley Longwave Radiometer";
    String instruments_2_instrument_nid "517";
    String instruments_2_supplied_name "Eppley PIR";
    String instruments_3_acronym "PrecipGauge";
    String instruments_3_dataset_instrument_nid "734010";
    String instruments_3_description "measures rain or snow precipitation";
    String instruments_3_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/381/";
    String instruments_3_instrument_name "Precipitation Gauge";
    String instruments_3_instrument_nid "671";
    String instruments_3_supplied_name "R.M. Young 50202";
    String instruments_4_acronym "Spectrophotometer";
    String instruments_4_dataset_instrument_nid "734012";
    String instruments_4_description "An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples.";
    String instruments_4_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/LAB20/";
    String instruments_4_instrument_name "Spectrophotometer";
    String instruments_4_instrument_nid "707";
    String instruments_4_supplied_name "Aerodyne CAPS";
    String instruments_5_acronym "Gas Analyzer";
    String instruments_5_dataset_instrument_nid "734013";
    String instruments_5_description "Gas Analyzers - Instruments for determining the qualitative and quantitative composition of gas mixtures.";
    String instruments_5_instrument_name "Gas Analyzer";
    String instruments_5_instrument_nid "720";
    String instruments_5_supplied_name "Thermo 49C (ozone); Thermo 48 (CO); Thermo 42C (NO, NOx)";
    String keywords "accumulated, Accumulated_precip_mm, bco, bco-dmo, biological, chemical, concentration, data, dataset, day, Day_of_month_utc, dmo, downwelling, Downwelling_longwave_rad, Downwelling_shortwave_rad, erddap, flag, fract, Fract_day_of_year_utc, hour, Hour_of_day_utc, index, Index_number, jno2, latitude, longitude, longwave, management, minute, Minute_of_hour_utc, mole, mole_concentration_of_nitrite_in_sea_water, month, Month_utc, nitrite, NO2, nox, number, oceanography, office, plume, Plume_flag, precipitation, Precipitation_flag, preliminary, rad, rain, rainfall, sea, seawater, seconds, Seconds_utc, shortwave, water, year, Year_utc";
    String license "https://www.bco-dmo.org/dataset/733059/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/733059";
    Float64 Northernmost_Northing 38.893413;
    String param_mapping "{'733059': {'lat': 'flag - latitude', 'lon': 'flag - longitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/733059/parameters";
    String people_0_affiliation "Pennsylvania State University";
    String people_0_affiliation_acronym "PSU";
    String people_0_person_name "Dr Raymond Najjar";
    String people_0_person_nid "50813";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Pennsylvania State University";
    String people_1_affiliation_acronym "PSU";
    String people_1_person_name "Douglas K. Martins";
    String people_1_person_nid "734294";
    String people_1_role "Scientist";
    String people_1_role_type "originator";
    String people_2_affiliation "Woods Hole Oceanographic Institution";
    String people_2_affiliation_acronym "WHOI BCO-DMO";
    String people_2_person_name "Megan Switzer";
    String people_2_person_nid "708683";
    String people_2_role "BCO-DMO Data Manager";
    String people_2_role_type "related";
    String project "DANCE";
    String projects_0_acronym "DANCE";
    String projects_0_description 
"NSF abstract:
Deposition of atmospheric nitrogen provides reactive nitrogen species that influence primary production in nitrogen-limited regions. Although it is generally assumed that these species in precipitation contributes substantially to anthropogenic nitrogen loadings in many coastal marine systems, its biological impact remains poorly understood. Scientists from Pennsylvania State University, William & Mary College, and Old Dominion University will carry out a process-oriented field and modeling effort to test the hypothesis that deposits of wet atmospheric nitrogen (i.e., precipitation) stimulate primary productivity and accumulation of algal biomass in coastal waters following summer storms and this effect exceeds the associated biogeochemical responses to wind-induced mixing and increased stratification caused by surface freshening in oligotrophic coastal waters of the eastern United States. To attain their goal, the researchers would perform a Lagrangian field experiment during the summer months in coastal waters located between Delaware Bay and the coastal Carolinas to determine the response of surface-layer biogeochemistry and biology to precipitation events, which will be identified and intercepted using radar and satellite data. As regards the modeling effort, a 1-D upper ocean mixing model and a 1-D biogeochemical upper-ocean will be calibrated by assimilating the field data obtained a part of the study using the adjoint method. The hypothesis will be tested using sensitivity studies with the calibrated model combined with in-situ data and results from the incubation experiments. Lastly, to provide regional and historical context for the field measurements and the associated 1-D modeling, linked regional atmospheric-oceanic biogeochemical modeling will be conducted.
Broader Impacts. Results from the study would be incorporated into class lectures for graduate courses on marine policy and marine biogeochemistry. One graduate student from Pennsylvania State University, one graduate student from the College of William and Mary, and one graduate and one undergraduate student from Old Dominion University would be supported and trained as part of this project.";
    String projects_0_end_date "2017-02";
    String projects_0_geolocation "Offshore Mid-Atlantic Bight and northern South-Atlantic Bight between latitudes 31.60�N and 38.89�N, and longitudes 71.09�W and 75.16�W";
    String projects_0_name "Collaborative Research: Impacts of atmospheric nitrogen deposition on the biogeochemistry of oligotrophic coastal waters";
    String projects_0_project_nid "726328";
    String projects_0_start_date "2013-03";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 33.596069;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "Year_utc,NOx";
    String summary "AQMET Air quality and meteorological measurements measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014.";
    String title "AQMET Air quality and meteorological measurements measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014.";
    String version "1";
    Float64 Westernmost_Easting -75.161498;
    String xml_source "osprey2erddap.update_xml() v1.3";
  }
}

 

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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