Dataset / Data from: Acidity Across the Interface: From the Ocean Surface to Sea …

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Title: Data from: Acidity Across the Interface: From the Ocean Surface to Sea Spray Aerosol
Creator: Grassian, Vicki H
Angle, Kyle J
Date Created and/or Issued: Time period of project: 2019-04-08 to 2020-07-02
Contributing Institution: UC San Diego, Research Data Curation Program
Collection: Center for Aerosol Impacts on Chemistry of the Environment (CAICE)
Rights Information: Under copyright
Constraint(s) on Use: This work is protected by the U.S. Copyright Law (Title 17, U.S.C.). Use of this work beyond that allowed by "fair use" or any license applied to this work requires written permission of the copyright holder(s). Responsibility for obtaining permissions and any use and distribution of this work rests exclusively with the user and not the UC San Diego Library. Inquiries can be made to the UC San Diego Library program having custody of the work.
Use: This work is available from the UC San Diego Library. This digital copy of the work is intended to support research, teaching, and private study.
Rights Holder and Contact: UC Regents
Description: Publication abstract: Aerosols impact climate, human health and the chemistry of the atmosphere and aerosol pH plays a major role in the physicochemical properties of the aerosol. However, there remains uncertainty as to whether aerosols are acidic, neutral, or basic. In this research, we show that the pH of freshly emitted (nascent) sea spray aerosols is significantly lower than that of sea water (approximately four pH units, with pH being a log scale value) and that smaller aerosol particles below 1 micron in diameter have pH values that are even lower. These measurements of nascent sea spray aerosol pH, performed in a unique ocean-atmosphere facility, provide convincing data to show that acidification occurs "across the interface" within minutes, when aerosols form from ocean surface waters and become airborne. We also show there is a correlation between aerosol acidity and dissolved carbon dioxide but no correlation with marine biology within the seawater. We discuss the mechanisms and contributing factors to this acidity and its implications on atmospheric chemistry.
This work was funded by the National Science Foundation (NSF) through the NSF Center for Aerosol Impacts on Chemistry of the Environment (CAICE) under Grant no. CHE-1801971.
Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp)
Angle, Kyle J.; Crocker, Daniel R.; Simpson, Rebecca M.C.; Mayer, Kathryn J.; Garofalo, Lauren A.; Moore, Alexia N.; Mora Garcia, Stephanie L.; Or, Victor W.; Srinivasan, Sudarshan; Farhan, Mahum; Sauer, Jon S.; Lee, Christopher; Pothier, Matson A.; Farmer, Delphine K.; Martz, Todd R.; Bertram, Timothy H.; Cappa, Christopher D.; Prather, Kimberly A.; Grassian, Vicki H. (2020). Data from: Acidity Across the Interface: From the Ocean Surface to Sea Spray Aerosol. In Center for Aerosol Impacts on Chemistry of the Environment (CAICE). UC San Diego Library Digital Collections. https://doi.org/10.6075/J028065J
This package contains an explanatory readme file and the code and the data used to generate "Acidity Across the Interface: From the Ocean Surface to Sea Spray Aerosol".
Type: Dataset
Language: English
Subject: Sea spray aerosol (SSA)
Aerosol pH
Sea surface microlayer (SSML)
Ocean acidity
Atmospheric chemistry

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