IADC Italian Arctic Data Center - ERDDAP
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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL cdm_data_type String TimeSeries
attribute NC_GLOBAL cdm_timeseries_variables String station_id,latitude,longitude
attribute NC_GLOBAL contributor_email String m.paglione at isac.cnr.it
attribute NC_GLOBAL contributor_institution String Italian National Research Council - Institute of Atmospheric Sciences and Climate (CNR-ISAC)
attribute NC_GLOBAL contributor_name String Marco Paglione
attribute NC_GLOBAL Conventions String COARDS, CF-1.10, ACDD-1.3
attribute NC_GLOBAL creator_email String m.paglione at isac.cnr.it
attribute NC_GLOBAL creator_name String Marco Paglione
attribute NC_GLOBAL creator_url String https://www.isac.cnr.it/en/users/marco-paglione (external link)
attribute NC_GLOBAL Easternmost_Easting double 11.8942
attribute NC_GLOBAL featureType String TimeSeries
attribute NC_GLOBAL geospatial_lat_max double 78.9177
attribute NC_GLOBAL geospatial_lat_min double 78.9177
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 11.8942
attribute NC_GLOBAL geospatial_lon_min double 11.8942
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String 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.    2021-01-01T00:00:00Z Aliquots of the aerosol extracts were dried under vacuum and re-dissolved in deuterium oxide (D2O) for organic functional group characterization by H-NMR spectroscopy), as described in the present paper and in previous works (i.e., Paglione et al., 2024). The H-NMR spectra were acquired at 600 MHz in a 5 mm tube using a Varian Unity INOVA spectrometer, at the NMR facility of the Department of Industrial Chemistry of the Bologna University.   2022-01-01T00:00:00Z On the basis of the range of frequency shifts, the signals are attributed to H-C containing specific functionalities (Decesari et al., 2000, 2007). Organic hydrogen concentrations directly measured by H-NMR were converted to organic carbon using stoichiometric H/C ratios specifically assigned to functional groups using the same rationale described in previous works (Paglione et al., 2024). The sum of NMR functional group concentrations expressed in C constitutes the total WSOC measured by H-NMR.    2022-01-01T00:00:00Z Some organic tracers were identified in the H-NMR spectra on the basis of their characteristic patterns of resonances and chemical shifts, using for this scope libraries of reference spectra from the literature (of standard single compounds and/or mixtures from laboratory/chamber experiments and/or from ambient field studies at near-source stations). Among such tracers, methane-sulfonic acid (MSA) and low-molecular-weight alkyl amines (namely, di- and tri- methyl amines, DMA and TMA respectively) were quantified, as well as levoglucosan and hydroxy-methane sulfonate (HMSA)
attribute NC_GLOBAL infoUrl String https://metadata.iadc.cnr.it/geonetwork/srv/api/records/0e110925-1f3d-4013-b048-e5a47ca3be6f (external link)
attribute NC_GLOBAL institution String Italian National Research Council - Institute of Atmospheric Sciences and Climate
attribute NC_GLOBAL keywords String dimethyl-amine, DMA, H-NMR, H-NMR functional groups, HMSA, Hydroxymethane-sulphonate, Levoglucosan, MA trimethyl-amine, methane-sulphonate, methyl-amine, MSA, Organic aerosol, organic molecular tracers, TMA, WSOC
attribute NC_GLOBAL license String 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.
attribute NC_GLOBAL Northernmost_Northing double 78.9177
attribute NC_GLOBAL publisher_name String Italian Arctic Data Center
attribute NC_GLOBAL publisher_type String group
attribute NC_GLOBAL publisher_url String https://iadc.cnr.it (external link)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 78.9177
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String H-NMR functional groups & tracers conc. - GVB, Ny-Alesund - May2019-Jun2020. PM1 organic aerosol functional groups distribution as measured by H-NMR, expressed both in ��molH m-3 and ��gC m-3 (using conversion factors described in Decesari et al., 2007) & mass concentrations of some molecular tracers (namely Methane-sulphonate (MSA), Hydroxy methane-sulfonate (HMSA) Di- and Tri- methyl amines (DMA and TMA)), levoglucosan, expressed in ��g m-3
attribute NC_GLOBAL time_coverage_end String 2020-06-01T00:00:00Z
attribute NC_GLOBAL time_coverage_start String 2019-05-24T00:00:00Z
attribute NC_GLOBAL title String H-NMR functional groups & tracers conc., GVB, Ny-Alesund, May2019-Jun2020
attribute NC_GLOBAL Westernmost_Easting double 11.8942
variable time double
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.558656E9, 1.5909696E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time time_precision String 1970-01-01T00:00:00Z
attribute time units String seconds since 1970-01-01T00:00:00Z
variable Arom_H float
attribute Arom_H _FillValue float NaN
attribute Arom_H actual_range float 7.19371E-8, 1.46161E-4
attribute Arom_H long_name String aromatic groups (Ar-H) mass concentration in aerosol WSOC by H-NMR
attribute Arom_H standard_name String mass_concentration_of_aromatic_functional_groups_in_organic_aerosol
attribute Arom_H units String ��molH m-3
variable Anom_vynil_H float
attribute Anom_vynil_H _FillValue float NaN
attribute Anom_vynil_H actual_range float 5.44389E-8, 2.74068E-4
attribute Anom_vynil_H colorBarMaximum String 10.0
attribute Anom_vynil_H colorBarMinimum String -10.0
attribute Anom_vynil_H long_name String anomeric-vynil groups (O-CH-O) mass concentration in aerosol WSOC by H-NMR
attribute Anom_vynil_H standard_name String mass_concentration_of_anomeric-vynil_functional_groups_in_organic_aerosol
attribute Anom_vynil_H units String ��molH m-3
variable Sug_Alc_Eth_Est_H float
attribute Sug_Alc_Eth_Est_H _FillValue float NaN
attribute Sug_Alc_Eth_Est_H actual_range float 3.64611E-6, 0.007265631
attribute Sug_Alc_Eth_Est_H long_name String aliphatic hydroxyl/alcoxy groups (H-C-O) mass concentration in aerosol WSOC by H-NMR
attribute Sug_Alc_Eth_Est_H standard_name String mass_concentration_of_h-c-o_functional_groups_in_organic_aerosol
attribute Sug_Alc_Eth_Est_H units String ��molH m-3
variable Polysub_aliph_Chains_H float
attribute Polysub_aliph_Chains_H _FillValue float NaN
attribute Polysub_aliph_Chains_H actual_range float 7.08289E-6, 0.02221592
attribute Polysub_aliph_Chains_H long_name String unsaturated/substituted groups (H-C-C=) mass concentration in aerosol WSOC by H-NMR
attribute Polysub_aliph_Chains_H standard_name String mass_concentration_of_h-c-c=_functional_groups_in_organic_aerosol
attribute Polysub_aliph_Chains_H units String ��molH m-3
variable MSA_H float
attribute MSA_H _FillValue float NaN
attribute MSA_H actual_range float 6.29288E-7, 0.004554071
attribute MSA_H long_name String Methane-sulphonate hydrogen concentration
attribute MSA_H standard_name String mass_concentration_of_methane-sulphonate_hydrogen_in_organic_aerosol
attribute MSA_H units String ��molH m-3
variable Amines_H float
attribute Amines_H _FillValue float NaN
attribute Amines_H actual_range float 2.52104E-7, 5.3854E-4
attribute Amines_H long_name String Sum of methyl-amines (mono-, di and tri- methyl amines) hydrogen concentration
attribute Amines_H standard_name String mass_concentration_of_methyl-amines_hydrogen_in_organic_aerosol
attribute Amines_H units String ��molH m-3
variable Aliph_Chains_H float
attribute Aliph_Chains_H _FillValue float NaN
attribute Aliph_Chains_H actual_range float 7.83726E-6, 0.02310733
attribute Aliph_Chains_H long_name String unfunctionalized alkyls (H-C) groups mass concentration in aerosol WSOC by H-NMR
attribute Aliph_Chains_H standard_name String mass_concentration_of_h-c_functional_groups_in_organic_aerosol
attribute Aliph_Chains_H units String ��molH m-3
variable Arom_C float
attribute Arom_C _FillValue float NaN
attribute Arom_C actual_range float 2.15811E-6, 0.004384829
attribute Arom_C long_name String aromatic groups (Ar-H) mass concentration in aerosol WSOC by H-NMR
attribute Arom_C standard_name String mass_concentration_of_aromatic_functional_groups_in_organic_aerosol
attribute Arom_C units String ��gC m-3
variable Anom_vynil_C float
attribute Anom_vynil_C _FillValue float NaN
attribute Anom_vynil_C actual_range float 6.53267E-7, 0.003288813
attribute Anom_vynil_C colorBarMaximum String 10.0
attribute Anom_vynil_C colorBarMinimum String -10.0
attribute Anom_vynil_C long_name String anomeric-vynil groups (O-CH-O) mass concentration in aerosol WSOC by H-NMR
attribute Anom_vynil_C units String ��gC m-3
variable Sug_Alc_Eth_Est_C float
attribute Sug_Alc_Eth_Est_C _FillValue float NaN
attribute Sug_Alc_Eth_Est_C actual_range float 0.0, 0.07926143
attribute Sug_Alc_Eth_Est_C long_name String aliphatic hydroxyl/alcoxy groups (H-C-O) mass concentration in aerosol WSOC by H-NMR
attribute Sug_Alc_Eth_Est_C standard_name String mass_concentration_of_h-c-o_functional_groups_in_organic_aerosol
attribute Sug_Alc_Eth_Est_C units String ��gC m-3
variable Polysub_aliph_Chains_C float
attribute Polysub_aliph_Chains_C _FillValue float NaN
attribute Polysub_aliph_Chains_C actual_range float 0.0, 0.266591
attribute Polysub_aliph_Chains_C long_name String unsaturated/substituted groups (H-C-C=) mass concentration in aerosol WSOC by H-NMR
attribute Polysub_aliph_Chains_C standard_name String mass_concentration_of_h-c-c=_functional_groups_in_organic_aerosol
attribute Polysub_aliph_Chains_C units String ��gC m-3
variable MSA_C float
attribute MSA_C _FillValue float NaN
attribute MSA_C actual_range float 2.51715E-6, 0.01821629
attribute MSA_C long_name String Methane-sulphonate carbon concentration
attribute MSA_C standard_name String mass_concentration_of_methane-sulphonate_carbon_in_organic_aerosol
attribute MSA_C units String ��gC m-3
variable Amines_C float
attribute Amines_C _FillValue float NaN
attribute Amines_C actual_range float 0.0, 0.002154158
attribute Amines_C long_name String Sum of methyl-amines (mono-, di and tri- methyl amines) carbon concentration
attribute Amines_C standard_name String mass_concentration_of_methyl-amines_carbon_in_organic_aerosol
attribute Amines_C units String ��gC m-3
variable Aliph_Chains_C float
attribute Aliph_Chains_C _FillValue float NaN
attribute Aliph_Chains_C actual_range float 0.0, 0.138644
attribute Aliph_Chains_C long_name String unfunctionalized alkyls (H-C) groups mass concentration in aerosol WSOC by H-NMR
attribute Aliph_Chains_C standard_name String mass_concentration_of_h-c_functional_groups_in_organic_aerosol
attribute Aliph_Chains_C units String ��gC m-3
variable WSOC_NMR_C float
attribute WSOC_NMR_C _FillValue float NaN
attribute WSOC_NMR_C actual_range float 1.78131E-4, 0.4962684
attribute WSOC_NMR_C long_name String WSOC NMR C
attribute WSOC_NMR_C standard_name String atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_particles
attribute WSOC_NMR_C units String ��gC m-3
variable MSA_mass float
attribute MSA_mass _FillValue float NaN
attribute MSA_mass actual_range float 2.01372E-5, 0.1457303
attribute MSA_mass long_name String Methane-sulphonate mass concentration in PM1
attribute MSA_mass standard_name String mass_concentration_of_methane-sulphonate_in_organic_aerosol
attribute MSA_mass units String ��g m-3
variable Levoglucosan_mass float
attribute Levoglucosan_mass _FillValue float NaN
attribute Levoglucosan_mass actual_range float 0.0, 0.009338861
attribute Levoglucosan_mass long_name String Levoglucosan Mass concentration in PM1
attribute Levoglucosan_mass standard_name String mass_concentration_of_levoglucosan_in_organic_aerosol
attribute Levoglucosan_mass units String ��g m-3
variable HMSA_mass float
attribute HMSA_mass _FillValue float NaN
attribute HMSA_mass actual_range float 1.77834E-6, 0.005945252
attribute HMSA_mass long_name String Hydroxy-methane sulphonate (HMSA) Mass concentration in PM1
attribute HMSA_mass standard_name String mass_concentration_of_hmsa_in_organic_aerosol
attribute HMSA_mass units String ��g m-3
variable TMA_mass float
attribute TMA_mass _FillValue float NaN
attribute TMA_mass actual_range float 2.1795E-6, 0.005804615
attribute TMA_mass long_name String Tri-methyl amine (TMA) Mass concentration in PM1
attribute TMA_mass standard_name String mass_concentration_of_tma_in_organic_aerosol
attribute TMA_mass units String ��g m-3
variable DMA_mass float
attribute DMA_mass _FillValue float NaN
attribute DMA_mass actual_range float 2.11923E-6, 0.003650845
attribute DMA_mass long_name String Di-methyl amine (DMA) Mass concentration in PM1
attribute DMA_mass standard_name String mass_concentration_of_dma_in_organic_aerosol
attribute DMA_mass units String ��g m-3
variable station_id String
attribute station_id actual_range String Gruvebadet\nGruvebadet
attribute station_id cf_role String timeseries_id
attribute station_id long_name String Gruvebadet
attribute station_id standard_name String gruvebadet
variable latitude float
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float 78.9177, 78.9177
attribute latitude axis String Y
attribute latitude ioos_category String Location
attribute latitude long_name String latitude position of the station
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude float
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float 11.8942, 11.8942
attribute longitude axis String X
attribute longitude ioos_category String Location
attribute longitude long_name String longitude position of the station
attribute longitude standard_name String longitude
attribute longitude units String degrees_east

 
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