The dataset consists of three files: element-homogeneity.xlsx  -  results from six aerosol samples that were each divided into eight subsamples. All subsamples were analysed for 14 trace elements after strong acid digestion, and the results used to assess the homogeneity of trace element distribution over the aerosol filter surface. mass-blanksubt-precis.xls  -  masses of soluble trace elements determined in 33 aerosol samples using a total of eight different leaching procedures by six different laboratory groups. Total trace element masses for the same samples are also included. The trace elements measured vary between laboratory groups. Masses given have been blank-corrected and precisions are listed in most cases. mass-method-comparison-stats-v2.xls  -  summaries of the statistical tests used to compare the results obtained by each of the combinations of leaching method pairs produced from the study. Results are shown for all of the 26 intercomparison samples and for two of the aerosol source-based subsets of these samples. Note, this file is updated from the original submission, with revised correlation analysis.

The dataset consists of three files: element-homogeneity.xlsx  -  results from six aerosol samples that were each divided into eight subsamples. All subsamples were analysed for 14 trace elements after strong acid digestion, and the results used to assess the homogeneity of trace element distribution over the aerosol filter surface. mass-blanksubt-precis.xls  -  masses of soluble trace elements determined in 33 aerosol samples using a total of eight different leaching procedures by six different laboratory groups. Total trace element masses for the same samples are also included. The trace elements measured vary between laboratory groups. Masses given have been blank-corrected and precisions are listed in most cases. mass-method-comparison-stats.xls  -  summaries of the statistical tests used to compare the results obtained by each of the combinations of leaching method pairs produced from the study. Results are shown for all of the 26 intercomparison samples and for two of the aerosol source-based subsets of these samples.

GEOS-Chem model output data repository for the preprint: "Constraining aerosol deposition over the global ocean"

GEOS-Chem model output data repository for the preprint: "Constraining aerosol deposition over the global ocean"

The Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition was an international initiative in which research vessel (R/V) Polarstern drifted with the sea ice in the Central Arctic Ocean from October 2019 to September 2020. Here, we present data from a study in which aerosols were collected on filters using a high-volume sampler aboard Polarstern. Samples were leached with ultrapure water and analyzed by ion chromatography. This dataset includes concentration data for soluble aerosol sodium, potassium, magnesium, calcium, chloride, bromine, sulfate, and nitrate from 25 of 26 aerosol collections.

The Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition was an international initiative in which research vessel (R/V) Polarstern drifted with the sea ice in the Central Arctic Ocean from October 2019 to September 2020. Here, we present data from a study in which aerosols were collected on filters using a high-volume sampler aboard Polarstern. Samples were leached with ultrapure water and weak acids and analyzed by inductively-coupled plasma mass spectrometry. This dataset includes concentration data for soluble aerosol nickel, zinc, copper, vanadium, chromium, iron, cobalt, molybdenum, cadmium, lead, titanium, aluminum, and manganese from 25 of 26 aerosol collections.

This data includes total and soluble Fe concentrations in aerosol samples and particle size data for aerosol samples using a Coulter Counter or Nanoparticle Tracking Analysis from the manuscript “Composition and plume gas interaction control iron fractional solubility more than particle size in volcanic ash: Implications for fertilization of the North Atlantic”Deposition of volcanic ash is thought to impact marine biogeochemical cycling by adding soluble iron (Fe) to the surface ocean. The magnitude of this input is a function of the amount of ash deposited, the total Fe content in the ash, and ash-derived Fe’s fractional solubility. However, the relative importance of chemical composition, acidic processing by the volcanic plume, and ash particle size in determining solubility is unclear. We paired an aerosol leach meant to provide an upper limit for fractional Fe solubility with chemical analyses of ash from the Cumbre Vieja and La Soufrière eruptions, which both impacted the North Atlantic in 2021. Fe in the ash samples is <6% soluble, but Fe fractional solubility in Cumbre Vieja ash is approximately triple that of La Soufrière ash. Compared to La Soufrière, a larger proportion of the Fe in Cumbre Vieja ash is in silicate rather than oxide minerals, which release more soluble Fe. Elevated levels of surficial fluorine (F) also suggest that Cumbre Vieja ash was subjected to a more fluorine-rich eruption plume and underwent more acidic processing. Particle size does not appear to be a primary control on Fe release. We estimate that the Cumbre Vieja eruption had a much larger impact on dissolved Fe (DFe) concentration in the surface ocean than the La Soufrière eruption due to differences in soluble Fe content and particle deposition velocity. These differences may help explain why some eruptions elicit a biological response in the ocean while others do not.  This data is associated with the article: Elliott, H.E., Blades, E., Royer, H.M., Buck, C., Kollman, C., Kukkadapu, R., China, S., Cheng, Z., Lata, N.N., Engelhard, M., Bowden, M., Lahiri, N., Parham, R.L., Meagher, L., Angstman, B., Ault, A.P., Hornby, A., Dayton, K., Gazel, E., Gaston, C.J. Composition and plume gas interaction control iron fractional solubility more than particle size in volcanic ash: Implications for fertilization of the North Atlantic

This dataset reports concentrations and stable isotopes of total and deionized water-soluble iron (Fe), zinc (Zn), and cadmium (Cd) bulk aerosols and Fe concentrations and stable isotopes of coarse (>0.95 micrometers (µm)) and fine (<0.95 µm) aerosols collected during Leg 1 (RR1814) of the US GEOTRACES GP15 Pacific Meridional Transect (PMT) cruise on R/V Roger Revelle from September to October 2018 on a meridional transect along 152°W from Alaska to Tahiti. Concentration and isotope data were collected by Zachary Bunnell, Dr. Matthias Sieber, and Dr. Tim Conway at the University of South Florida using a Thermo Neptune Plus MC-ICPMS following aerosol collection and processing by Dr. Clifton Buck's group. Trace metal isotope ratios are an important emerging tool in aerosols to trace aerosol sources of each metal. Data from Leg 2 of the cruise (RR1815) are available in a separate dataset.

This dataset reports concentrations and stable isotopes of total and deionized water-soluble iron (Fe), zinc (Zn), and cadmium (Cd) bulk aerosols and Fe concentrations and stable isotopes of coarse (>0.95 micrometers (µm)) and fine (<0.95 µm) aerosols collected durin Leg 2 (RR1815) of the US GEOTRACES GP15 Pacific Meridional Transect (PMT) cruise on R/V Roger Revelle from October to November 2018 on a meridional transect along 152°W from Alaska to Tahiti. Concentration and isotope data were collected by Zachary Bunnell, Dr. Matthias Sieber, and Dr. Tim Conway at the University of South Florida using a Thermo Neptune Plus MC-ICPMS following aerosol collection and processing by Dr. Clifton Buck's group. Trace metal isotope ratios are an important emerging tool in aerosols to trace aerosol sources of each metal. Data from Leg 1 of the cruise (RR1814) are available in a separate dataset.

The Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition was an international initiative in which research vessel (R/V) Polarstern drifted with the sea ice in the Central Arctic Ocean from October 2019 to September 2020. Here, we present data from a study in which aerosols were collected on filters using a high-volume sampler aboard Polarstern. Samples were digested with acids and analyzed by inductively-coupled plasma mass spectrometry. This dataset includes concentration data for total aerosol nickel, zinc, copper, vanadium, chromium, iron, cobalt, molybdenum, cadmium, lead, titanium, aluminum, and manganese from 25 of 26 aerosol collections.