The Relationships Between Cloud Top Radiative Cooling Rates, Surface Latent Heat Fluxes, and Cloud‐Base Heights in Marine Stratocumulus

Zheng, Youtong; Rosenfeld, Daniel; Li, Zhanqing

doi:10.1029/2018jd028579

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The Relationships Between Cloud Top Radiative Cooling Rates, Surface Latent Heat Fluxes, and Cloud‐Base Heights in Marine Stratocumulus

2018
By Zheng, Youtong ; Rosenfeld, Daniel ; Li, Zhanqing
Source: Journal of Geophysical Research: Atmospheres, 123(20)

[PDF-1.36 MB]

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Details:

Journal Title:

Journal of Geophysical Research: Atmospheres
Personal Author:

Zheng, Youtong ; Rosenfeld, Daniel ; Li, Zhanqing

Zheng, Youtong ; Rosenfeld, Daniel ; Li, Zhanqing Less -
NOAA Program & Office:

NWS (National Weather Service)
Description:

Cloud top radiative cooling (CTRC) drives turbulence in marine boundary layers (MBLs) topped by stratocumulus clouds. This study examines the role of CTRC in regulating the surface-cloud coupling,surface latent heat ﬂuxes, and cloud base height by exploiting a 6-month worth of shipborne observations over the subtropical northeast Paci ﬁc in combination with geostationary satellite data. We ﬁnd that owning to the prevailing equatorward ﬂow that advects stratocumulus clouds over warmer sea surfaces, the vast majority of the decoupled stratocumulus decks are fed by divergence from the tops of underlying cumulus, forming cumulus-coupled MBL. The cumulus-coupled and well-mixed MBL dominate the subtropical MBL regimes. We ﬁnd that strong CTRC favors greater (smaller) occurrence frequency of well-mixed
Keywords:

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Atmospheric Science Earth And Planetary Sciences (miscellaneous) Geophysics Space And Planetary Science
Source:

Journal of Geophysical Research: Atmospheres, 123(20)
DOI:

https://doi.org/10.1029/2018jd028579
ISSN:

2169-897X;2169-8996;
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA15NWS4680011
Rights Information:

Other
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Library
Main Document Checksum:

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urn:sha256:bbb289601ba3e6635853f4915d03115938bb5f7a597cef3902cc9ac8e5da206e
Download URL:

https://repository.library.noaa.gov/view/noaa/55217/noaa_55217_DS1.pdf
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