Table of Contents

• Dataset Description
  • Methods & Sampling
  • Data Processing Description
• Data Files
• Parameters
• Instruments
• Deployments
• Project Information
• Funding

Aerosol data collected on R/V Polarstern cruise ARK-XXVI-3.

Aerosols were sampled at a rate of 1 cubic meter per minute (1 m3/min) using the Florida State University high volume aerosol sampler (Tisch Environmental TSP TE5170V). The sampler was located on the flying deck, forward railings. Acid-washed Whatman 41, 47 mm disc (cellulose esters; W41) filters were used.

Method references:
Buck, C.S., et al. 2010. The solubility and deposition of aerosol Fe and other trace elements in the North Atlantic Ocean: observations from the A16N CLIVAR/CO2 repeat hydrography section. Marine Chemistry 120, 57-70. doi: 10.1016/j.marchem.2008.08.003.
Buck, C. S., Landing, W.M.,  Resing,  J. A.,  Lebon, G. T. 2006. Aerosol iron and aluminum solubility in the northwest Pacific Ocean: Results from the 2002 IOC cruise. Geochemistry, Geophysics, Geosystems. 7. doi: 10.1029/2005GC000977.
Morton, P.L. et al. 2013. Methods for the sampling and analysis of marine aerosols: results from the 2008 GEOTRACES aerosol intercalibration experiment. Limnology and Oceanography Methods 11:62-78. doi: 10.4319/lom.2013.11.62.

Concentrations below the detection limit are flagged as "BDL" in the data columns. Detection limits were calculated using an air volume of 1200 cubic meters. See PDF of detection limits for this dataset.

Quality flag definitions:
BDL = below detection limit.
0 = No QC performed.
1 = Good data.
2 = Probably good data.
3 = Probably bad data that is potentially correctable.
4 = Bad data.
5 = Value changed.
6 = Sample < blank.
8 = Interpolated value.
9 = Missing value.

BCO-DMO edits:
- changed Aug and Sept to 08 and 09 in month columns;
- replaced blanks with 'nd' to indicate 'no data';
- modified parameter names to conform with BCO-DMO naming conventions;
- removed % signs from RSD columns.

Description from the NSF award abstract:
The investigators propose to use the naturally occurring isotope beryllium-7, which is produced in the atmosphere by cosmic rays and has a 53.3-day half-life, as a tracer for estimating the atmospheric fluxes of a variety of trace elements to the surface of the Arctic Ocean. They have collected samples of snow, sea ice, surface waters, and atmospheric aerosols through an international collaboration concurrent with the preparation of this proposal. This project provides funding for the analysis of Be-7 and for trace elements including aluminum, manganese, iron, cupper, zinc, cadmium, and lead. The atmospheric input of numerous chemical species into the global ocean has been shown to equal or exceed that from river sources. In the Arctic, several contaminant elements in particular are dominated by atmospheric sources, with implications for the Arctic ecosystem and human health. The project will investigate several elements of interest to the international GEOTRACES program, which is currently formulating plans for coordinated Arctic work. The project will support a Ph.D. student who will incorporate these results into his dissertation.