Baker, Alex R; Droste, Elise Sayana (2021): Aerosol soluble chemical composition for OASIS cruise (SO234/2 & SO235), Indian Ocean, July-August 2014, determined by ion chromatography and inductively coupled plasma - mass spectrometry [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.935883
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Abstract:
Size segregated aerosol samples were collected during the OASIS (“Organic very short lived substances and their Air Sea Exchange from the Indian Ocean to the Stratosphere”) cruises (FS Sonne, SO234-2 & SO235) during 8 - 20 July & 23 July – 7 August 2014 in the southern Indian Ocean (~30 E - 75 E, 30 S – 5 N). The samples were collected by Birgit Quack of GEOMAR, Kiel, Germany. The aerosol sampler was situated on the roof of the ship's wheelhouse and was connected to an automatic wind sector controller to prevent contamination of the samples from the ship's stack. Most samples were collected using a Sierra-type cascade impactor to separate the aerosol particles at an aerodynamic diameter cutoff of 1 µm. Collection time for these samples varied between 27.7 and 46.9 hours. For one sample, 6 impactor stages and a backup filter were used to give more detailed information aerosol size distribution. This sample was collected over 91.7 hours. Samples were extracted with ultrapure water and the major ions Na+, NH4+, Mg2+, K+, Ca2+, Cl-, NO3-, SO42-, oxalate, Br- and methanesulfonate were determined by ion chromatography (IC). Total soluble iodine (TSI) was determined by inductively coupled plasma - mass spectrometry (ICP-MS) and iodide (I-) and iodate (IO3-) were determined by IC-ICP-MS. The dataset contains the atmospheric concentrations of all measured soluble major ions (in nmol/m³) and iodine species (in pmol/ m³).
Related to:
Droste, Elise Sayana; Baker, Alex R; Yodle, Chan; Smith, Andrew; Ganzeveld, L (2021): Soluble Iodine Speciation in Marine Aerosols Across the Indian and Pacific Ocean Basins. Frontiers in Marine Science, 8, 1844, https://doi.org/10.3389/fmars.2021.788105
Coverage:
Median Latitude: -17.344000 * Median Longitude: 58.829000 * South-bound Latitude: -29.680000 * West-bound Longitude: 31.810000 * North-bound Latitude: 3.710000 * East-bound Longitude: 74.130000
Date/Time Start: 2014-07-08T13:57:00 * Date/Time End: 2014-08-06T11:15:00
Event(s):
SO234/2_MI01 * Latitude Start: -29.540000 * Longitude Start: 31.810000 * Latitude End: -25.830000 * Longitude End: 40.200000 * Date/Time Start: 2014-07-08T13:57:00 * Date/Time End: 2014-07-10T15:45:00 * Location: Southern Indian Ocean * Campaign: SO234/2 (SPACES II) * Basis: Sonne * Method/Device: High volume aerosol collector (Graseby-Anderson type) * Comment: Volume of air sampled: 1826.22 m*3
SO234/2_MI02 * Latitude Start: -25.630000 * Longitude Start: 40.450000 * Latitude End: -26.500000 * Longitude End: 47.020000 * Date/Time Start: 2014-07-10T17:15:00 * Date/Time End: 2014-07-13T05:30:00 * Location: Southern Indian Ocean * Campaign: SO234/2 (SPACES II) * Basis: Sonne * Method/Device: High volume aerosol collector (Graseby-Anderson type) * Comment: Volume of air sampled: 3565.98 m*3
SO234/2_MI03 * Latitude Start: -26.640000 * Longitude Start: 47.520000 * Latitude End: -29.650000 * Longitude End: 58.700000 * Date/Time Start: 2014-07-13T07:55:00 * Date/Time End: 2014-07-15T12:30:00 * Location: Southern Indian Ocean * Campaign: SO234/2 (SPACES II) * Basis: Sonne * Method/Device: High volume aerosol collector (Graseby-Anderson type) * Comment: Volume of air sampled: 2384.58 m*3
Comment:
Sampler Flow: 1 m³/min
Substrate Type: Glass Fibre
Substrate Pretreat: Washed in ultrapure water and then ashed at 450C for 4 hours
Size Seg Method: Sierra type cascade impactor. For most samples stages 3 and 4 were used and combined during analysis to give a fraction with aerodynamic diameter > 1 µm (Size_fraction 3-4). Backup filter collected the < 1µm fraction (Size_fraction w). Stages 1-6 and backup (w) filter were used an analysed separately for sample 10.
Method Publication: Yodle and Baker, Atmospheric Environment X, 1, 100009, (2019).
DL Value: Where the detection limit applies, concentrations are quoted as less than the limit of detection; Example atmospheric detection limits (given in Comment below) have been calculated from analytical detection limits for an air volume of 2500 m³.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Baker, Alex R | |||
| 2 | Date/Time of event | Date/Time | Baker, Alex R | |||
| 3 | Date/Time of event 2 | Date/Time 2 | Baker, Alex R | |||
| 4 | Latitude of event | Latitude | Baker, Alex R | |||
| 5 | Latitude of event 2 | Latitude 2 | Baker, Alex R | |||
| 6 | Longitude of event | Longitude | Baker, Alex R | |||
| 7 | Longitude of event 2 | Longitude 2 | Baker, Alex R | |||
| 8 | Sample code/label | Sample label | Baker, Alex R | |||
| 9 | Size fraction | Size fraction | Baker, Alex R | |||
| 10 | Air volume | Air vol | m3 | Baker, Alex R | ||
| 11 | Sodium, soluble | Na sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 12.9 nmol/m**3; Detection limit w: 6.8 nmol/m**3 |
| 12 | Sodium, soluble, standard deviation | Na sol std dev | ± | Baker, Alex R | ||
| 13 | Ammonium, soluble | [NH4]+ sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.12 nmol/m**3; Detection limit w: 0.12 nmol/m**3 |
| 14 | Ammonium, soluble, standard deviation | [NH4]+ sol std dev | ± | Baker, Alex R | ||
| 15 | Magnesium, soluble | Mg sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.09 nmol/m**3; Detection limit w: 0.09 nmol/m**3 |
| 16 | Magnesium, soluble, standard deviation | Mg sol std dev | ± | Baker, Alex R | ||
| 17 | Potassium, soluble | K sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.08 nmol/m**3; Detection limit w: 0.13 nmol/m**3 |
| 18 | Potassium, soluble, standard deviation | K sol std dev | ± | Baker, Alex R | ||
| 19 | Calcium, soluble | Ca sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.08 nmol/m**3; Detection limit w: 0.08 nmol/m**3 |
| 20 | Calcium, soluble, standard deviation | Ca sol std dev | ± | Baker, Alex R | ||
| 21 | Chloride, soluble | Cl- sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.8 nmol/m**3; Detection limit w: 0.5 nmol/m**3 |
| 22 | Chloride, soluble, standard deviation | Cl- sol std dev | ± | Baker, Alex R | ||
| 23 | Nitrate, soluble | [NO3]- sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.04 nmol/m**3; Detection limit w: 0.03 nmol/m**3 |
| 24 | Nitrate, soluble, standard deviation | [NO3]- sol std dev | ± | Baker, Alex R | ||
| 25 | Sulfate, soluble | [SO4]2- sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.03 nmol/m**3; Detection limit w: 0.05 nmol/m**3 |
| 26 | Sulfate, soluble, standard deviation | [SO4]2- sol std dev | ± | Baker, Alex R | ||
| 27 | Oxalate, soluble | [C2O4]2- sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.01 nmol/m**3; Detection limit w: 0.01 nmol/m**3 |
| 28 | Oxalate, soluble, standard deviation | [C2O4]2- sol std dev | ± | Baker, Alex R | ||
| 29 | Bromide, soluble | Br- sol | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.03 nmol/m**3; Detection limit w: 0.03 nmol/m**3 |
| 30 | Bromide, soluble, standard deviation | Br- sol std dev | ± | Baker, Alex R | ||
| 31 | Methane sulfonic acid | MSA | nmol/m3 | Baker, Alex R | Ion chromatography | Detection limit 3-4: 0.02 nmol/m**3; Detection limit w: 0.02 nmol/m**3 |
| 32 | Methane sulfonic acid, standard deviation | MSA std dev | ± | Baker, Alex R | ||
| 33 | Iodide, soluble | I- sol | pmol/m3 | Baker, Alex R | Elemental species separation and detection (IC-ICP-MS) | Detection limit 3-4: 0.07 nmol/m**3; Detection limit w: 0.13 nmol/m**3 |
| 34 | Iodide, soluble, standard deviation | I- sol std dev | ± | Baker, Alex R | ||
| 35 | Iodate, soluble | [IO3]- sol | pmol/m3 | Baker, Alex R | Elemental species separation and detection (IC-ICP-MS) | Detection limit 3-4: 0.07 nmol/m**3; Detection limit w: 0.07 nmol/m**3 |
| 36 | Iodate, soluble, standard deviation | [IO3]- sol std dev | ± | Baker, Alex R | ||
| 37 | Iodine, soluble | I sol | pmol/m3 | Baker, Alex R | Inductively coupled plasma - mass spectrometry (ICP-MS) | Detection limit 3-4: 0.21 nmol/m**3; Detection limit w: 0.29 nmol/m**3 |
| 38 | Iodine, soluble, standard deviation | I sol std dev | ± | Baker, Alex R |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
709 data points