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| Dataset Title: | PM1 main composition - Gruvebadet, Ny-Alesund, Svalbard - May 2019-June 2020
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| Institution: | Italian National Research Council - Institute of Atmospheric Sciences and Climate (Dataset ID: pm1_main_composition_vnja7m) |
| Information: | Summary
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| ISO 19115
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Attributes {
s {
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.558656e+9, 1.5909696e+9;
String axis "T";
String ioos_category "Time";
String long_name "Time";
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";
}
OM {
Float32 _FillValue NaN;
Float32 actual_range 13.922, 1150.45;
String long_name "OM - mass concentration of Organic Matter in PM1";
String standard_name "atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_particles";
String units "ng m-3";
}
WSOM {
Float32 _FillValue NaN;
Float32 actual_range 0.402, 727.866;
String long_name "WSOM - mass concentration of Water Soluble Organic Matter in PM1";
String standard_name "atmosphere_mass_content_of_particulate_water-soluble_organic_matter_dry_aerosol_particles";
String units "ng m-3";
}
WIOM {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 422.584;
String long_name "WIOM - mass concentration of Water Insolubl Organic Matter in PM1";
String standard_name "atmosphere_mass_content_of_particulate_water-insoluble_organic_matter_dry_aerosol_particles";
String units "ng m-3";
}
nitrate {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 25.186;
String colorBarMaximum "50.0";
String colorBarMinimum "0.0";
String long_name "nitrate - Mass Concentration Of Nitrate In PM1";
String standard_name "atmosphere_mass_content_of_nitrate_dry_aerosol_particles";
String units "ng m-3";
}
ammonium {
Float32 _FillValue NaN;
Float32 actual_range 0.054, 121.51;
String colorBarMaximum "5.0";
String colorBarMinimum "0.0";
String long_name "ammonium - mass Concentration Of Ammonium In PM1";
String standard_name "atmosphere_mass_content_of_ammonium_dry_aerosol_particles";
String units "ng m-3";
}
nss_sulfate {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 1574.708;
String long_name "nss-sulfate - mass concentration of non-seasalt sulfate in PM1";
String standard_name "atmosphere_mass_content_of_sulfate_ambient_aerosol_particles";
String units "ng m-3";
}
eBC {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 138.0;
String long_name "eBC - equivalent black carbon";
String standard_name "mass_concentration_of_absorption_equivalent_black_carbon_of_dry_aerosol_particles_in_air";
String units "ng m-3";
}
seasalt {
Float32 _FillValue NaN;
Float32 actual_range 0.843, 685.569;
String colorBarMaximum "37.0";
String colorBarMinimum "32.0";
String long_name "seasalt mass concentration in PM1";
String standard_name "atmosphere_mass_content_of_seasalt_dry_aerosol_particles";
String units "ng m-3";
}
nss_other_ions {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 255.313;
String long_name "nss-other ions - non-seasalt other ions in PM1";
String standard_name "mass_concentration_of_pm1_non_sea_salt_dry_aerosol_particles_in_air";
String units "ng m-3";
}
PM1 {
Float32 _FillValue NaN;
Float32 actual_range 40.063, 2963.81;
String long_name "PM1";
String standard_name "mass_concentration_of_pm1_dry_aerosol_particles_in_air";
String units "ng m-3";
}
station_id {
String actual_range
"Gruvebadet
Gruvebadet";
String cf_role "timeseries_id";
String long_name "Gruvebadet";
String standard_name "gruvebadet";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 actual_range 78.9177, 78.9177;
String axis "Y";
String ioos_category "Location";
String long_name "latitude position of the station";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range 11.8942, 11.8942;
String axis "X";
String ioos_category "Location";
String long_name "longitude position of the station";
String standard_name "longitude";
String units "degrees_east";
}
}
NC_GLOBAL {
String cdm_data_type "TimeSeries";
String cdm_timeseries_variables "station_id,latitude,longitude";
String contributor_email "m.paglione@isac.cnr.it";
String contributor_institution "Italian National Research Council - Institute of Atmospheric Sciences and Climate (CNR-ISAC)";
String contributor_name "Marco Paglione";
String Conventions "COARDS, CF-1.10, ACDD-1.3";
String creator_email "m.paglione@isac.cnr.it";
String creator_name "Marco Paglione";
String creator_url "https://www.isac.cnr.it/en/users/marco-paglione";
Float64 Easternmost_Easting 11.8942;
String featureType "TimeSeries";
Float64 geospatial_lat_max 78.9177;
Float64 geospatial_lat_min 78.9177;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max 11.8942;
Float64 geospatial_lon_min 11.8942;
String geospatial_lon_units "degrees_east";
String history
"2019-05-24T00:00:00Z to 2020-06-01T00:00:00Z Ambient aerosol particles with Dp<1 μm (PM1) were sampled by a High-Volume Sampler (TECORA eco-highvol equipped with digital PM1 sampling inlet, nominal flow 500 lpm) on pre-washed and pre-baked quartz-fiber filters (PALL, Ø= 18cm). Sampling time: 3-4 days per sample for collecting sufficient aerosol loading for the detailed chemical analyses on the filters. 2020-09-30T00:00:00Z After sampling the filters were stored in a freezer and then shipped in thermal insulated boxes to the CNR-ISAC laboratory in Bologna, Italy, where they were kept frozen at about -20º C until extraction and chemical analyses. About half of each filter was used for the off-line characterization by TOC-analyzer, Ion-chromatography and H-NMR (as described in the paper) performed in Bologna. 2021-04-01T00:00:00Z A portion of the remaining filter (about half of them, as well) was cut in clean room and shipped to PSI laboratories in Zurich, Switzerland for AMS measurements and carbonaceous content quantifications (both WSOC by TOC analyzer and EC/OC on filters by Sunset, as detailed below). 2021-01-01T00:00:00Z A multi-technique analytical approach was adopted for the characterization of the sampled PM1. The aerosol filter samples were extracted with deionized ultrapure water (Milli-Q) in a mechanical shaker for 1 h and the water extracts were filtered on PTFE membranes (pore size: 0.45 μm) in order to remove suspended materials. Extracts were analyzed by means of a TOC thermal combustion analyzer (Shimadzu TOC-5000A) for the quantification of water-soluble organic carbon (WSOC) content. Extracts were analyzed also by ion chromatography for the quantification of the main water-soluble inorganic ions (sodium, Na+; chloride, Cl-; nitrate, NO3-; sulfate, SO42-; ammonium, NH4+; potassium, K+; magnesium, Mg2+; calcium, Ca2+), methanesulphonate, MSA, and low molecular weight alkyl-amines (methyl-, dimethyl-, and trimethylamine, MA, DMA, and TMA, respectively) (Facchini et al., 2008a). An IonPac CS16 3 × 250 mm Dionex separation column with gradient MSA elution and an IonPac AS11 2 × 250 mm Dionex separation column with gradient KOH elution were deployed for cations and anions, respectively. 2022-04-01T00:00:00Z Seasalt and non-seasalt fractions of the main inorganic ions measured by IC (ss-x and nss-x, respectively) were quantified based on the global average sea-salt composition found in Seinfeld and Pandis (2016) using Na+ as the sea-salt tracer. 2022-05-01T equivalent Black Carbon (eBC) mass concentrations are retrieved by PSAP absorption measurements (Mazzola and Gilardoni, 2022, https://doi.org/10.71761/ee3fb49e-c3e2-4572-95b8-1e7ff6361ac5) 2024-03-01T00:00:00Z The Thermo-Optical Transmittance (TOT) method was employed to determine organic carbon (OC) and elemental carbon (EC) using a Lab OC-EC Aerosol Analyzer (Model 5L, Sunset Laboratory Inc., USA) following the EUSAAR2 protocol. 2024-05-01T00:00:00Z Organic matter (OM) was calculated multipling the organic carbon (OC) by the OM:OC elemental ratio measured by HR-TOF-AMS. 2024-05-01T00:00:00Z Water Soluble Organic Matter (WSOM) was calculated multipling the water soluble organic carbon (WSOC) measured by a TOC thermal combustion analyzer (Shimadzu TOC-5000A) by the OM:OC elemental ratio measured by HR-TOF-AMS. 2024-05-01T00:00:00Z Water Insoluble Organic Matter (WIOM was calculated as = (OC – WSOC) * 1.4 (Rinaldi et al., 2013)
2025-03-04T21:22:27Z (local files)
2025-03-04T21:22:27Z https://data.iadc.cnr.it/erddap/tabledap/pm1_main_composition_vnja7m.html";
String infoUrl "https://metadata.iadc.cnr.it/geonetwork/srv/api/records/0e110925-1f3d-4013-b048-e5a47ca3be6f";
String institution "Italian National Research Council - Institute of Atmospheric Sciences and Climate";
String keywords "aerosol ions, ammonium, atmospheric_chemistry, atmospheric_composition, eBC, ions, NH4, Nitrate, NO3, nss_sulfate, Organic aerosol, PM1_concentration, seasalt_aerosol, seawater, sulfate, wsom";
String keywords_vocabulary "GCMD Science Keywords";
String license "CC BY-NC: This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator.";
Float64 Northernmost_Northing 78.9177;
String publisher_name "Italian Arctic Data Center";
String publisher_type "group";
String publisher_url "https://iadc.cnr.it";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 78.9177;
String standard_name_vocabulary "CF Standard Name Table v70";
String summary "Mass concentrations of the main species constituting PM1 mass at Gruvebadet (GVB) laboratory, Ny-Alesund, Svalbard from 25 May 2019 til 01 June 2020. PM1 sampled by a High-Volume Sampler on pre-washed and pre-baked quartz-fiber filters. Sampling time: 3-4 days per sample.";
String time_coverage_end "2020-06-01T00:00:00Z";
String time_coverage_start "2019-05-24T00:00:00Z";
String title "PM1 main composition - Gruvebadet, Ny-Alesund, Svalbard - May 2019-June 2020";
Float64 Westernmost_Easting 11.8942;
}
}
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.