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Title: Boundary Layer Diabatic Processes, the Virtual Effect, and Convective Self-Aggregation

Abstract

Here, the atmosphere can self-organize into long-lasting large-scale overturning circulations over an ocean surface with uniform temperature. This phenomenon is referred to as convective self-aggregation and has been argued to be important for tropical weather and climate systems. Here we present a boundary layer centric framework based on the available potential energy budget of convective self-aggregation. We show that boundary layer diabatic processes dominate the available potential energy production and are, therefore, essential to convective self-aggregation. We further show that the enhanced virtual effect of water vapor can lead to convective self-aggregation.

Authors:
ORCiD logo [1]
  1. Univ. of California, Davis, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1468831
Alternate Identifier(s):
OSTI ID: 1468832; OSTI ID: 1492323
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Journal of Advances in Modeling Earth Systems
Additional Journal Information:
Journal Volume: 10; Journal Issue: 9; Journal ID: ISSN 1942-2466
Publisher:
American Geophysical Union (AGU)
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; convective self‐aggregation; the weak buoyancy gradient approximation; available potential energy; the virtual effect of water vapor; boundary layer

Citation Formats

Yang, Da. Boundary Layer Diabatic Processes, the Virtual Effect, and Convective Self-Aggregation. United States: N. p., 2018. Web. doi:10.1029/2017MS001261.
Yang, Da. Boundary Layer Diabatic Processes, the Virtual Effect, and Convective Self-Aggregation. United States. doi:10.1029/2017MS001261.
Yang, Da. Wed . "Boundary Layer Diabatic Processes, the Virtual Effect, and Convective Self-Aggregation". United States. doi:10.1029/2017MS001261.
@article{osti_1468831,
title = {Boundary Layer Diabatic Processes, the Virtual Effect, and Convective Self-Aggregation},
author = {Yang, Da},
abstractNote = {Here, the atmosphere can self-organize into long-lasting large-scale overturning circulations over an ocean surface with uniform temperature. This phenomenon is referred to as convective self-aggregation and has been argued to be important for tropical weather and climate systems. Here we present a boundary layer centric framework based on the available potential energy budget of convective self-aggregation. We show that boundary layer diabatic processes dominate the available potential energy production and are, therefore, essential to convective self-aggregation. We further show that the enhanced virtual effect of water vapor can lead to convective self-aggregation.},
doi = {10.1029/2017MS001261},
journal = {Journal of Advances in Modeling Earth Systems},
number = 9,
volume = 10,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1029/2017MS001261

Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

Figures / Tables:

Figure 1 Figure 1: Examine the role of radiation. Hovmöller diagrams of precipitable water (mm) in the control simulation (a) and in simulations with horizontally homogenized radiative cooling rates for the entire column (b), for the free troposphere (c), and for the boundary layer (d).

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    Works referencing / citing this record:

    Self-Aggregation of Deep Convection and its Implications for Climate
    journal, January 2019


    Convective Heating Leads to Self‐Aggregation by Generating Available Potential Energy
    journal, September 2019