Detail publikace

Temperature and Concentration Affect Particle Size Upon Sublimation of Saline Ice: Implications for Sea Salt Aerosol Production in Polar Regions

ZÁVACKÁ, K. NEDĚLA, V. OLBERT, M. TIHLAŘÍKOVÁ, E. VETRÁKOVÁ, Ľ. YANG, X. HEGER, D.

Originální název

Temperature and Concentration Affect Particle Size Upon Sublimation of Saline Ice: Implications for Sea Salt Aerosol Production in Polar Regions

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Using an environmental scanning electron microscope, we quantified for the first time aerosol-sized salt particles formed during the sublimation of sea ice as a function of temperature and concentration. The sublimation temperature of the ice is a dominating physical factor to determine the size of the residua: Below -20 degrees C, micron-sized pieces of salt emerge, whereas above the temperature large chunks of salt are detected. Another such aspect influencing the distribution of sizes in salt particles is the concentration: Micron-sized particles are observed exclusively at salinities below 3.5 psu, while below 0.085 psu particles with a median smaller than 6 mu m arise from sea ices at any subzero temperature. Moreover, when a chunk of salt sublimes at less than -30 degrees C to be dried and warmed later, a large number of sub-micron crystals will appear. We relate our findings to the production of the polar atmospheric sea salt aerosols.

Klíčová slova

sea salt aerosols; ozone depletion; sublimation; microscopy; eutectic temperature; bromine explosion

Autoři

ZÁVACKÁ, K.; NEDĚLA, V.; OLBERT, M.; TIHLAŘÍKOVÁ, E.; VETRÁKOVÁ, Ľ.; YANG, X.; HEGER, D.

Vydáno

28. 4. 2022

Nakladatel

AMER GEOPHYSICAL UNION

Místo

WASHINGTON

ISSN

0094-8276

Periodikum

GEOPHYSICAL RESEARCH LETTERS

Ročník

49

Číslo

8

Stát

Spojené státy americké

Strany od

1

Strany do

10

Strany počet

10

URL

https://doi.org/10.1029/2021GL097098

BibTex

@article{BUT178375,
  author="Kamila {Závacká} and Vilém {Neděla} and Martin {Olbert} and Eva {Tihlaříková} and Ľubica {Vetráková} and Xin {Yang} and Dominik {Heger}",
  title="Temperature and Concentration Affect Particle Size Upon Sublimation of Saline Ice: Implications for Sea Salt Aerosol Production in Polar Regions",
  journal="GEOPHYSICAL RESEARCH LETTERS",
  year="2022",
  volume="49",
  number="8",
  pages="1--10",
  doi="10.1029/2021GL097098",
  issn="0094-8276",
  url="https://doi.org/10.1029/2021GL097098"
}