Upright Convection in Extratropical Cyclones: A Survey Using Ground‐Based Radar Data Over the United States

Jeyaratnam, Jeyavinoth; Booth, James F.; Naud, Catherine M.; Luo, Z. Johnny; Homeyer, Cameron R.

doi:10.1029/2019gl086620

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Upright Convection in Extratropical Cyclones: A Survey Using Ground‐Based Radar Data Over the United States

2020
By Jeyaratnam, Jeyavinoth ; Booth, James F. ; Naud, Catherine M. ; ...
Source: Geophysical Research Letters, 47(4)

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Journal Title:

Geophysical Research Letters
Personal Author:

Jeyaratnam, Jeyavinoth ; Booth, James F. ; Naud, Catherine M. ; Luo, Z. Johnny ; Homeyer, Cameron R.

Jeyaratnam, Jeyavinoth ; Booth, James F. ; Naud, Catherine M. ; Luo, Z. Johnny ; Homeyer, Cameron R. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research)
Description:

Upright convection can impact extratropical cyclone (ETC) precipitation and dynamics differently than isentropic ascent, but how often it occurs and how much it contributes to totalprecipitation within an ETC have not been systematically documented in previous literature. Herein, convection in ETCs is analyzed using ground ‐based radar observations over the Eastern United States. Convection occupies 1% –5% of the precipitating region and constitutes 1% –15% of total cyclone precipitation. Furthermore, the location of convective activity occurs preferentially in the warm sector early in a cyclone's life cycle, and then as the storm evolves, more convection occurs along and behind the cold front. The precipitation rates in regions with convection are more likely to be stronger than those in otherprecipitating regions of the cyclone. However, the cyclones with the largest area ‐average precipitation rates
Keywords:

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General Earth And Planetary Sciences Geophysics
Source:

Geophysical Research Letters, 47(4)
DOI:

https://doi.org/10.1029/2019gl086620
ISSN:

0094-8276;1944-8007;
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA15OAR4310094
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Library
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urn:sha256:647f22123719e31e684209ea14546d75da82a8fe4cef05c7c64f970646ec5396
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https://repository.library.noaa.gov/view/noaa/53554/noaa_53554_DS1.pdf
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