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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F22%3A00564221" target="_blank" >RIV/68081731:_____/22:00564221 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/22:00129320

Výsledek na webu

<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021GL097098" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021GL097098</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2021GL097098" target="_blank" >10.1029/2021GL097098</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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: Below20 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 than30 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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: Below20 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 than30 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10510 - Climatic research

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

1944-8007

Svazek periodika

49

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

e2021GL097098

Kód UT WoS článku

000786336300001

EID výsledku v databázi Scopus

2-s2.0-85129142438