Gao Yuan

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Gao
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Yuan
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  • Article
    Methods for the sampling and analysis of marine aerosols : results from the 2008 GEOTRACES aerosol intercalibration experiment
    (Association for the Sciences of Limnology and Oceanography, 2013-02) Morton, Peter L. ; Landing, William M. ; Hsu, Shih-Chieh ; Milne, Angela ; Aguilar-Islas, Ana M. ; Baker, Alexander R. ; Bowie, Andrew R. ; Buck, Clifton S. ; Gao, Yuan ; Gichuki, Susan ; Hastings, Meredith G. ; Hatta, Mariko ; Johansen, Anne M. ; Losno, Remi ; Mead, Chris ; Patey, Matthew D. ; Swarr, Gretchen J. ; Vandermark, Amanda ; Zamora, Lauren M.
    Atmospheric deposition of trace elements and isotopes (TEI) is an important source of trace metals to the open ocean, impacting TEI budgets and distributions, stimulating oceanic primary productivity, and influencing biological community structure and function. Thus, accurate sampling of aerosol TEIs is a vital component of ongoing GEOTRACES cruises, and standardized aerosol TEI sampling and analysis procedures allow the comparison of data from different sites and investigators. Here, we report the results of an aerosol analysis intercalibration study by seventeen laboratories for select GEOTRACES-relevant aerosol species (Al, Fe, Ti, V, Zn, Pb, Hg, NO3 , and SO42 ) for samples collected in September 2008. The collection equipment and filter substrates are appropriate for the GEOTRACES program, as evidenced by low blanks and detection limits relative to analyte concentrations. Analysis of bulk aerosol sample replicates were in better agreement when the processing protocol was constrained (± 9% RSD or better on replicate analyses by a single lab, n = 7) than when it was not (generally 20% RSD or worse among laboratories using different methodologies), suggesting that the observed variability was mainly due to methodological differences rather than sample heterogeneity. Much greater variability was observed for fractional solubility of aerosol trace elements and major anions, due to differing extraction methods. Accuracy is difficult to establish without an SRM representative of aerosols, and we are developing an SRM for this purpose. Based on these findings, we provide recommendations for the GEOTRACES program to establish consistent and reliable procedures for the collection and analysis of aerosol samples.
  • Dataset
    Concentrations of ultrapure water soluble aerosol trace elements collected from bulk aerosol samples on the 2015 US GEOTRACES Western Arctic Transect on USCGC Healy (HLY1502) August to October 2015
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-06-10) Buck, Clifton S. ; Gao, Yuan ; Landing, William M.
    This dataset contains concentrations of ultrapure water soluble aerosol trace elements collected from bulk aerosol samples on the 2015 US GEOTRACES Western Arctic Transect (USCG Healy GN01). For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/728472
  • Dataset
    Concentrations of aerosol trace elements collected from bulk aerosol samples on the 2015 US GEOTRACES Western Arctic Transect cruise on USCGC Healy (HLY1502) from August to October 2015
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-06-10) Buck, Clifton S. ; Gao, Yuan ; Landing, William M.
    This dataset contains concentrations of aerosol trace elements collected from bulk aerosol samples on the 2015 US GEOTRACES Western Arctic Transect (USCG Healy GN01). For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/725905
  • Working Paper
    US SOLAS Science Report
    (Woods Hole Oceanographic Institution, 2021-12) Stanley, Rachel H. R. ; Bell, Tom G. ; Gao, Yuan ; Gaston, Cassandra J. ; Ho, David T. ; Kieber, David J. ; Mackey, Katherine R. M. ; Meskhidze, Nicholas ; Miller, William L. ; Potter, Henry ; Vlahos, Penny ; Yager, Patricia L. ; Alexander, Becky ; Beaupre, Steven R. ; Craig, Susanne E. ; Cutter, Gregory A. ; Emerson, Steven ; Frossard, Amanda A. ; Gasso, Santiago ; Haus, Brian K. ; Keene, William C. ; Landing, William M. ; Moore, Richard H. ; Ortiz-Suslow, David ; Palter, Jaime B. ; Paulot, Fabien ; Saltzman, Eric ; Thornton, Daniel ; Wozniak, Andrew S. ; Zamora, Lauren M. ; Benway, Heather M.
    The Surface Ocean – Lower Atmosphere Study (SOLAS) (http://www.solas-int.org/) is an international research initiative focused on understanding the key biogeochemical-physical interactions and feedbacks between the ocean and atmosphere that are critical elements of climate and global biogeochemical cycles. Following the release of the SOLAS Decadal Science Plan (2015-2025) (Brévière et al., 2016), the Ocean-Atmosphere Interaction Committee (OAIC) was formed as a subcommittee of the Ocean Carbon and Biogeochemistry (OCB) Scientific Steering Committee to coordinate US SOLAS efforts and activities, facilitate interactions among atmospheric and ocean scientists, and strengthen US contributions to international SOLAS. In October 2019, with support from OCB, the OAIC convened an open community workshop, Ocean-Atmosphere Interactions: Scoping directions for new research with the goal of fostering new collaborations and identifying knowledge gaps and high-priority science questions to formulate a US SOLAS Science Plan. Based on presentations and discussions at the workshop, the OAIC and workshop participants have developed this US SOLAS Science Plan. The first part of the workshop and this Science Plan were purposefully designed around the five themes of the SOLAS Decadal Science Plan (2015-2025) (Brévière et al., 2016) to provide a common set of research priorities and ensure a more cohesive US contribution to international SOLAS.