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Convection and Convective‐Organization in Hothouse Climates

Journal of Advances in Modeling Earth Systems, 2023
In a “hothouse” climate, warm temperatures lead to a high tropospheric water vapor concentration. Sufficiently high water vapor levels lead to the closing of the water vapor infrared window, which prevents radiative cooling of the lower troposphere ...
Guy Dagan, Jacob T. Seeley, Nathan Steiger   +2 more
doaj   +3 more sources

Implicit learning of convective organization explains precipitation stochasticity. [PDF]

Proc Natl Acad Sci U S A, 2023
Accurate prediction of precipitation intensity is crucial for both human and natural systems, especially in a warming climate more prone to extreme precipitation. Yet, climate models fail to accurately predict precipitation intensity, particularly extremes.
Shamekh S, Lamb KD, Huang Y, Gentine P.
europepmc   +3 more sources

Parameterizing convective organization

Journal of Advances in Modeling Earth Systems, 2011
Lateral mixing parameters in buoyancy-driven deep convection schemes are among the most sensitive and important unknowns in atmosphere models. Unfortunately, there is not a true optimum value for plume mixing rate, but rather a dilemma or tradeoff ...
Brian Earle Mapes, Richard Brian Neale
doaj   +2 more sources

Parameterizing Convective Organization Effects With a Moisture‐PDF Approach in Climate Models: Concept and a Regional Case Simulation

Journal of Advances in Modeling Earth Systems, 2022
We propose a parameterization scheme of convective organization effects based on a moisture‐distribution approach, which can reflect aggregation of convective cells within a model grid as well as the interaction between convection and spatial ...
Ben Yang, Minghuai Wang, Guang J. Zhang, Zhun Guo, Yong Wang, Xin Xu, Guoqing Dai, Anning Huang, Yaocun Zhang, Yun Qian   +9 more
doaj   +2 more sources

Circling in on Convective Organization [PDF]

Geophysical Research Letters, 2019
AbstractCold pools (CPs) contribute to convective organization. However, it is unclear by which mechanisms organization occurs. By using a particle method to track CP gust fronts in large eddy simulations, we characterize the basic collision modes between CPs.
Olga Henneberg, Jan O Haerter, Silas Boye Nissen   +2 more
exaly   +7 more sources

Initiation and Organization Mechanisms of Mesoscale Convective Systems in a Warm-Sector Torrential Rainfall Event over Beijing

Atmosphere, 2020
A torrential rainfall that occurred in Beijing during the period of 21–22 July 2012 is simulated by the Weather Research and Forecasting Model in order to investigate the probable mechanisms for the initiation and organization of warm-sector mesoscale ...
Lei Yin, Jiahua Mao, Fan Ping, Xiaofan Li, Ning Wang   +4 more
doaj   +3 more sources

Do We Need to Parameterize Mesoscale Convective Organization to Mitigate the MJO‐Mean State Trade‐Off?

Geophysical Research Letters, 2019
Modifications in cumulus parameterizations that improve Madden‐Julian oscillation (MJO) simulation tend to degrade the mean state—known as the MJO‐mean state trade‐off.
Min‐Seop Ahn, Daehyun Kim, Sungsu Park, Yoo‐Geun Ham   +3 more
doaj   +2 more sources

Observed Modulation of the Tropical Radiation Budget by Deep Convective Organization and Lower‐Tropospheric Stability

AGU Advances, 2020
This study analyzes the observed monthly deseasonalized and detrended variability of the tropical radiation budget and suggests that variations of the lower‐tropospheric stability and of the spatial organization of deep convection both strongly ...
S. Bony, A. Semie, R. J. Kramer, B. Soden, A. M. Tompkins, K. A. Emanuel   +5 more
doaj   +2 more sources

Precipitation Extremes and Their Modulation by Convective Organization in RCEMIP

Journal of Advances in Modeling Earth Systems
We examine the influence of convective organization on extreme tropical precipitation events using model simulation data from the Radiative‐Convective Equilibrium Model Intercomparison Project (RCEMIP).
Graham L. O’Donnell, Allison A. Wing
doaj   +2 more sources

Changing Degree of Convective Organization as a Mechanism for Dynamic Changes in Extreme Precipitation [PDF]

Current Climate Change Reports, 2020
Angeline Pendergrass, Pendergrass Angeline G   +1 more
exaly   +2 more sources