NDLI: Effective control parameters in a deep convection scheme for improved simulation of the Madden

Content Provider	Springer Nature Link
Author	Choi, Jin Ho Seo, Kyong Hwan
Copyright Year	2016
Abstract	This work seeks to find the most effective parameters in a deep convection scheme (relaxed Arakawa–Schubert scheme) of the National Centers of Environmental Prediction Climate Forecast System model for improved simulation of the Madden–Julian Oscillation (MJO). A suite of sensitivity experiments are performed by changing physical components such as the relaxation parameter of mass flux for adjustment of the environment, the evaporation rate from large-scale precipitation, the moisture trigger threshold using relative humidity of the boundary layer, and the fraction of re-evaporation of convective (subgrid-scale) rainfall. Among them, the last two parameters are found to produce a significant improvement. Increasing the strength of these two parameters reduces light rainfall that inhibits complete formation of the tropical convective system or supplies more moisture that help increase a potential energy to large-scale environment in the lower troposphere (especially at 700 hPa), leading to moisture preconditioning favorable for further development and eastward propagation of the MJO. In a more humid environment, more organized MJO structure (i.e., space–time spectral signal, eastward propagation, and tilted vertical structure) is produced.
Starting Page	3583
Ending Page	3597
Page Count	15
File Format	PDF
ISSN	09307575
Journal	Climate Dynamics
Volume Number	48
Issue Number	11-12
e-ISSN	14320894
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-07-26
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Madden–Julian oscillation NCEP CFS model RAS deep convection scheme Critical relative humidity of the boundary layer Fraction of re-evaporation of convective precipitation Geophysics/Geodesy Climatology Oceanography
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

The Madden-Julian Oscillation in NCEP Coupled Model Simulation

Influence of the Madden Julian Oscillation on precipitation and surface air temperature in South America

Arctic sea ice and the Madden–Julian Oscillation (MJO)

Assessment of Madden–Julian oscillation simulations with various configurations of CESM

Stochastic simulations of the Madden–Julian oscillation activity

Impacts of sea surface temperature in the tropical Pacific on interannual variability of Madden-Julian Oscillation in precipitation

Assessments of surface latent heat flux associated with the Madden–Julian Oscillation in reanalyses

Sensitivity of simulated intraseasonal oscillation to four convective parameterization schemes in a coupled climate model

Effects of moisture feedback in a frictional coupled Kelvin–Rossby wave model and implication in the Madden–Julian oscillation dynamics

Effective control parameters in a deep convection scheme for improved simulation of the Madden–Julian oscillation

Similar Documents

The Madden-Julian Oscillation in NCEP Coupled Model Simulation

Influence of the Madden Julian Oscillation on precipitation and surface air temperature in South America

Arctic sea ice and the Madden–Julian Oscillation (MJO)

Assessment of Madden–Julian oscillation simulations with various configurations of CESM

Stochastic simulations of the Madden–Julian oscillation activity

Impacts of sea surface temperature in the tropical Pacific on interannual variability of Madden-Julian Oscillation in precipitation

Assessments of surface latent heat flux associated with the Madden–Julian Oscillation in reanalyses

Sensitivity of simulated intraseasonal oscillation to four convective parameterization schemes in a coupled climate model

Effects of moisture feedback in a frictional coupled Kelvin–Rossby wave model and implication in the Madden–Julian oscillation dynamics

Effective control parameters in a deep convection scheme for improved simulation of the Madden–Julian oscillation