Accessing BCO-DMO data
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| Dataset Title: | [PANDORA Total column nitrogen dioxide] - Total column nitrogen dioxide (NO2) measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014. (Collaborative Research: Impacts of atmospheric nitrogen deposition on the biogeochemistry of oligotrophic coastal waters) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_732115) |
| Information: | Summary
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| FGDC
| ISO 19115
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Attributes {
s {
Station_ID {
String bcodmo_name "station";
String description "Station ID";
String long_name "Station ID";
String units "no units";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range 34.2441, 38.8218;
String axis "Y";
String bcodmo_name "latitude";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "Latitude, south is negative";
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 -75.1543, -71.1105;
String axis "X";
String bcodmo_name "longitude";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "Longitude, west is negative";
String ioos_category "Location";
String long_name "Longitude";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
String standard_name "longitude";
String units "degrees_east";
}
Date_Time {
String bcodmo_name "DateTime";
String description "UT date and time for center of measurement (yyyymmddThhmmssZ)";
String long_name "Date Time";
String source_name "Date_Time";
String time_precision "1970-01-01T00:00:00Z";
String units "no units";
}
Samp_time {
Float32 _FillValue NaN;
Float32 actual_range 1.85, 5.16;
String bcodmo_name "unknown";
String description "Total duration of measurement in seconds";
String long_name "Samp Time";
String units "seconds";
}
Zenith {
Float32 _FillValue NaN;
Float32 actual_range 19.72, 86.83;
String bcodmo_name "unknown";
String description "Solar zenith angle at the center-time of the measurement in degrees";
String long_name "Zenith";
String units "degrees";
}
Azimuth {
Float32 _FillValue NaN;
Float32 actual_range 74.96, 285.28;
String bcodmo_name "unknown";
String description "Solar azimuth at the center-time of the measurement in degrees; 0=north; increases clockwise";
String long_name "Azimuth";
String units "degrees";
}
rms_unweighted {
Float32 _FillValue NaN;
Float32 actual_range 0.002074, 0.1464;
String bcodmo_name "unknown";
Float64 colorBarMaximum 0.1;
Float64 colorBarMinimum 0.0;
String description "rms of unweighted spectral fitting residuals";
String long_name "Rms Unweighted";
String units "no units";
}
rms_weighted {
Float32 _FillValue NaN;
Float32 actual_range 0.002043, 0.1276;
String bcodmo_name "unknown";
Float64 colorBarMaximum 0.1;
Float64 colorBarMinimum 0.0;
String description "Normalized rms of weighted spectral fitting residuals";
String long_name "Rms Weighted";
String units "no units";
}
NO2_vert {
Float32 _FillValue NaN;
Float32 actual_range -4.3883, 11.029;
String bcodmo_name "unknown";
Float64 colorBarMaximum 1.0;
Float64 colorBarMinimum 0.0;
String description "Nitrogen dioxide vertical column amount";
String long_name "Mole Concentration Of Nitrite In Sea Water";
String units "Dobson units";
}
NO2_uncert {
Float32 _FillValue NaN;
Float32 actual_range -9.0, 105.69;
String bcodmo_name "unknown";
Float64 colorBarMaximum 1.0;
Float64 colorBarMinimum 0.0;
String description "Uncertainty of nitrogen dioxide vertical column amount";
String long_name "Mole Concentration Of Nitrite In Sea Water";
String units "Dobson units";
}
NO2_dir_sun {
Float32 _FillValue NaN;
Float32 actual_range 1.062, 13.222;
String bcodmo_name "unknown";
Float64 colorBarMaximum 1.0;
Float64 colorBarMinimum 0.0;
String description "Direct sun nitrogen dioxide air mass factor";
String long_name "Mole Concentration Of Nitrite In Sea Water";
String units "no units";
}
err_index {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 36;
String bcodmo_name "unknown";
String description "Sum over 2^i with i being a level 2 error index";
String long_name "Err Index";
String units "no units";
}
Temp {
Float32 _FillValue NaN;
Float32 actual_range 21.67, 23.85;
String bcodmo_name "temperature";
String description "Effective temperature; 999=no effective temperature given";
String long_name "Temperature";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/";
String units "degrees Celsius";
}
Res_stray_light {
Float32 _FillValue NaN;
Float32 actual_range -9.0, -9.0;
String bcodmo_name "unknown";
String description "Estimated average residual stray light level";
String long_name "Res Stray Light";
String units "percent";
}
Wavelength_shift {
Float32 _FillValue NaN;
Float32 actual_range -9.0, 0.00356;
String bcodmo_name "unknown";
String description "Retrieved wavelength shift";
String long_name "Wavelength Shift";
String units "nanometers (nm)";
}
Filterwheel_pos {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 3;
String bcodmo_name "unknown";
String description "Position of filterwheel #2; 0=filterwheel not used; 1-9 are valid positions";
String long_name "Filterwheel Pos";
String units "no units";
}
Result_index {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 2, 8;
String bcodmo_name "unknown";
String description "Fitting result index; 1 and 2=no error; >2=error";
String long_name "Result Index";
String units "no units";
}
NO2_temp {
Float32 _FillValue NaN;
Float32 actual_range -9.0, -9.0;
String bcodmo_name "unknown";
Float64 colorBarMaximum 1.0;
Float64 colorBarMinimum 0.0;
String description "Nitrogen dioxide effective temperature";
String long_name "Mole Concentration Of Nitrite In Sea Water";
String units "degrees Kelvin (K)";
}
NO2_temp_uncert {
Float32 _FillValue NaN;
Float32 actual_range -9.0, -9.0;
String bcodmo_name "unknown";
Float64 colorBarMaximum 1.0;
Float64 colorBarMinimum 0.0;
String description "Uncertainty of nitrogen dioxide effective temperature";
String long_name "Mole Concentration Of Nitrite In Sea Water";
String units "degrees Kelvin (K)";
}
}
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
"PANDORA Total column nitrogen dioxide
PI: R. Najjar (Penn State)
Dataset ID: 732115
Version: 1
Last updated: 2018-04-18";
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 "2018-03-27T19:09:25Z";
String date_modified "2019-08-16T14:46:25Z";
String defaultDataQuery "&time<now";
String doi "10.1575/1912/bco-dmo.732115.1";
Float64 Easternmost_Easting -71.1105;
Float64 geospatial_lat_max 38.8218;
Float64 geospatial_lat_min 34.2441;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -71.1105;
Float64 geospatial_lon_min -75.1543;
String geospatial_lon_units "degrees_east";
String history
"2024-12-21T15:39:52Z (local files)
2024-12-21T15:39:52Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_732115.html";
String infoUrl "https://www.bco-dmo.org/dataset/732115";
String institution "BCO-DMO";
String instruments_0_acronym "Spectrometer";
String instruments_0_dataset_instrument_nid "732123";
String instruments_0_description "A spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum.";
String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0460/";
String instruments_0_instrument_name "Spectrometer";
String instruments_0_instrument_nid "667";
String instruments_0_supplied_name "Pandora direct-sun spectrometer (Herman et al., 2009)";
String keywords "azimuth, bco, bco-dmo, biological, chemical, concentration, data, dataset, date, dmo, erddap, err_index, error, filterwheel, Filterwheel_pos, index, latitude, light, longitude, management, mole, mole_concentration_of_nitrite_in_sea_water, nitrite, NO2_dir_sun, NO2_temp, NO2_temp_uncert, NO2_uncert, NO2_vert, oceanography, office, pos, preliminary, res, Res_stray_light, result, Result_index, rms, rms_unweighted, rms_weighted, samp, Samp_time, sea, seawater, shift, station, Station_ID, stray, Temp, temperature, time, unweighted, water, wavelength, Wavelength_shift, weighted, zenith";
String license "https://www.bco-dmo.org/dataset/732115/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/732115";
Float64 Northernmost_Northing 38.8218;
String param_mapping "{'732115': {'lat': 'flag - latitude', 'lon': 'flag - longitude'}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/732115/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 34.2441;
String standard_name_vocabulary "CF Standard Name Table v55";
String subsetVariables "Res_stray_light,NO2_temp,NO2_temp_uncert";
String summary "Total column nitrogen dioxide (NO2) measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014.";
String title "[PANDORA Total column nitrogen dioxide] - Total column nitrogen dioxide (NO2) measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014. (Collaborative Research: Impacts of atmospheric nitrogen deposition on the biogeochemistry of oligotrophic coastal waters)";
String version "1";
Float64 Westernmost_Easting -75.1543;
String xml_source "osprey2erddap.update_xml() v1.3";
}
}
Data Access Protocol (DAP) and its
selection constraints.
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.