High‐frequency gravity waves and homogeneous ice nucleation in tropical tropopause layer cirrus

Jensen, Eric J.; Ueyama, Rei; Pfister, Leonhard; Bui, Theopaul V.; Alexander, M. Joan; Podglajen, Aurélien; Hertzog, Albert; Woods, Sarah; Lawson, R. Paul; Kim, Ji‐Eun; Schoeberl, Mark R.

doi:10.1002/2016gl069426

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High‐frequency gravity waves and homogeneous ice nucleation in tropical tropopause layer cirrus

2016
By Jensen, Eric J. ; Ueyama, Rei ; Pfister, Leonhard ; ...
Source: Geophysical Research Letters, 43(12), 6629-6635

[PDF-698.66 KB]

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Journal Title:

Geophysical Research Letters
Personal Author:

Jensen, Eric J. ; Ueyama, Rei ; Pfister, Leonhard ; Bui, Theopaul V. ; Alexander, M. Joan ; ... More +

Jensen, Eric J. ; Ueyama, Rei ; Pfister, Leonhard ; Bui, Theopaul V. ; Alexander, M. Joan ; Podglajen, Aurélien ; Hertzog, Albert ; Woods, Sarah ; Lawson, R. Paul ; Kim, Ji‐Eun ; Schoeberl, Mark R. Less -
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NESDIS (National Environmental Satellite, Data, and Information Service)
Description:

The impact of high-frequency gravity waves on homogeneous-freezing ice nucleation in cold cirrus clouds is examined using parcel model simulations driven by superpressure balloon measurementsoftemperaturevariabilityexperiencedbyairparcelsinthetropicaltropopauseregion. Weﬁndthattheprimaryinﬂuenceofhigh-frequencywavesistogeneraterapidcoolingeventsthatdriveproductionofnumerousicecrystals.Quenchingoficenucleationeventsbytemperaturetendencyreversal inthehighest-frequencywavesdoesoccasionallyproducelowiceconcentrations,buttheoverallimpact of high-frequency waves is to increase the occurrence of high ice concentrations. The simulated iceconcentrationsareconsiderablyhigherthanindicate dbyinsitumeasurementsofcirrusinthetropical tropopauseregion.One-dimensionalsimulationssuggestthatalthoughsedimentationreducesmean
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General Earth And Planetary Sciences Geophysics
Source:

Geophysical Research Letters, 43(12), 6629-6635
DOI:

https://doi.org/10.1002/2016gl069426
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0094-8276;1944-8007;
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American Geophysical Union (AGU)
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Journal Article
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urn:sha256:2feca33044515f81727d4e76d932542d38c6994a1387c1691ba92ec69abdefa0
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https://repository.library.noaa.gov/view/noaa/53550/noaa_53550_DS1.pdf
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