Precipitation is a strong increasing, non-linear function of lower free tropospheric humidity Diabatic heating profile result of integrated effects of.

Slides:



Advertisements
Similar presentations
Comparing TitanWRF and Cassini Results at the End of the Cassini Prime Mission Claire E. Newman, Mark I. Richardson, Anthony D. Toigo and Christopher Lee.
Advertisements

What’s quasi-equilibrium all about?
The link between tropical convection and the Northern Hemisphere Arctic surface air temperature change on intraseaonal and interdecadal time scales Steven.
An intraseasonal moisture nudging experiment in a tropical channel version of the WRF model: The model biases and the moisture nudging scale dependencies.
Variability of the Atlantic ITCZ Associated with Amazon Rainfall and Convectively Coupled Kelvin Waves Hui Wang and Rong Fu School of Earth and Atmospheric.
Eddy-Zonal Flow Feedback in the Southern and Northern Hemispheres A Review of Two Papers by D. J. Lorenz and D. L. Hartmann Stephanie Sydorko AT750.
Sensitivities of the MJO to the Shape and Strength of the Tropical Warm Pool in the Stochastic Skeleton Model [BIRS 15w5023] Stochasticity and Organization.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP February 20, 2006.
Aggregated Convection and the Regulation of Tropical Climate Kerry Emanuel Program in Atmospheres, Oceans, and Climate MIT.
Impact of the Madden- Julian Oscillation on ENSO Michael Delman Advisor: Dr. Doug Sinton 12/8/05.
General Circulation and Kinetic Energy
Tropical Mid-Tropospheric CO 2 Variability driven by the Madden-Julian Oscillation King-Fai Li 1, Baijun Tian 2, Duane E. Waliser 2, Yuk L. Yung 1 1 California.
Mechanisms of poleward propagating, intraseasonal convective anomalies in a cloud-system resolving model William Boos & Zhiming Kuang Dept. of Earth &
On the Cause of Solar Differential Rotation Ling-Hsiao Lyu Institute of Space Science, National Central University 呂凌霄 中央大學太空科學研究所 太陽差動自轉的成因.
1 THE MADDEN-JULIAN OSCILLATION AND CALIFORNIA RAINFALL Charles Jones University of California Santa Barbara.
The General Circulation of the Atmosphere Tapio Schneider.
GLOBAL PATTERNS OF THE CLIMATIC ELEMENTS: (1) SOLAR ENERGY (Linked to solar insolation & R, net radiation)
The MJO Not really….it’s The Madden Julian Oscillation.
Understanding MJO dynamics and model bias in DYNAMO hindcasts Eric D. Maloney, Colorado State University Contributors: Walter Hannah, Emily Riley, Adam.
Eric D. Maloney, Walter Hannah Department of Atmospheric Science
Using GPS data to study the tropical tropopause Bill Randel National Center for Atmospheric Research Boulder, Colorado “You can observe a lot by just watching”
Teleconnections and the MJO: intraseasonal and interannual variability Steven Feldstein June 25, 2012 University of Hawaii.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP April 16, 2007.
Benjamin A. Schenkel Lance F. Bosart, and Daniel Keyser University at Albany, State University of New York.
The MJO Precipitating Cloud Population over the Central Indian Ocean as seen by the TRMM PR Hannah C. Barnes Robert A. Houze, Jr. University of Washington.
Modulation of eastern North Pacific hurricanes by the Madden-Julian oscillation. (Maloney, E. D., and D. L. Hartmann, 2000: J. Climate, 13, )
MJO simulations under a dry environment Marcela Ulate M Advisor: Chidong Zhang (… in a Nudging World)
ATMS 373C.C. Hennon, UNC Asheville Tropical Oscillations Madden-Julian Oscillation (MJO)
Where PV2 >> PV1 (so PV1 / PV2 is nearly zero) Low-to-mid tropospheric PV generated by diabatic heating is dominant over PV generated due to near surface.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP March 26, 2007.
Equatorial Waves. Kelvin Waves (Figure obtained from Introduction to Tropical Meteorology, 2 nd Edition, © 2011 COMET.)
Diurnal Variations of Tropical Convection Ohsawa, T., H. Ueda, T. Hayashi, A. Watanabe, and J. Matsumoto, 2001 : Diurnal Variations of Convective Activity.
Long-Term Changes in Northern and Southern Annular Modes Part I: Observations Christopher L. Castro AT 750.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP July 17, 2006.
TESTING THE REALISM OF THE MMF (or any GCM) REPRESENTATION OF THE MJO William B. Rossow Eric Tromeur City College of New York CMMAP Meeting July.
Composite Regression Analysis of the 8 Phases of the MJO By: Zachary Handlos.
Interactions between the Madden- Julian Oscillation and the North Atlantic Oscillation Hai Lin Meteorological Research Division, Environment Canada Acknowledgements:
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP May 17, 2005.
El Nino, Indian Ocean dynamics and extremely rainy years in East Africa Emily Black, Julia Slingo and Ken Sperber Introduction Rainfall.
The MJO Cloud Population over the Indian Ocean
The Dynamics of Western Hemisphere Circulation Evolution in the MJO Naoko Sakaeda and Paul Roundy Dept. Atmospheric and Environmental Sciences.
Composition/Characterstics of the Atmosphere 80% Nitrogen, 20% Oxygen- treated as a perfect gas Lower atmosphere extends up to  50 km. Lower atmosphere.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP February 5, 2007.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP January 29, 2007.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP March 12, 2007.
The Role of Tropical Waves in Tropical Cyclogenesis Frank, W. M., and P. E. Roundy 2006: The role of tropical waves in tropical cyclogenesis. Mon. Wea.
Understanding Air Pressure
Large-scale transient variations of tropical deep convection forced with zonally symmetric SSTs Zhiming Kuang Dept. Earth and Planetary Sciences and School.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP April 3, 2006.
Essential Question: How and where do the 5 types of fog form?
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP April 9, 2007.
The Atmospheric Response to Changes in Tropical Sea Surface Temperatures An overview of Gill, A.E., 1980, Some simple solutions for heat- induced tropical.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP November 6, 2006.
© Crown copyright Met Office Predictability and systematic error growth in Met Office MJO predictions Ann Shelly, Nick Savage & Sean Milton, UK Met Office.
Day Meridional Propagation of Global Circulation Anomalies ( A Global Convection Circulation Paradigm for the Annular Mode) Ming Cai 1 and R-C.
Three-Dimensional Water Vapor and Cloud Variations Associated with the MJO during Northern Hemisphere Winter By: David S. Myers and Duane E. Waliser Presented.
The impact of tropical convection and interference on the extratropical circulation Steven Feldstein and Michael Goss The Pennsylvania State University.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP April 26, 2005.
Atmosphere-ocean interactions Exchange of energy between oceans & atmosphere affects character of each In oceans –Atmospheric processes alter salinity.
MJO Initiation Katherine H. Straub, Associate Professor of Earth and Environmental Sciences Susquehanna University, Selinsgrove, PA INTRODUCTION Since.
CO 2 Mixing/Advection by Fronts Aaron Wang Colorado State University.
Cloud Formation  Ten Basic Types of Clouds (Genera): l High: Ci, Cs, Cc l Middle: As, Ac l Low: St, Ns, Sc l Clouds of Great Vertical Extent: Cu, Cb 
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP July 31, 2006.
Madden/Julian Oscillation: Recent Evolution, Current Status and Forecasts Update prepared by Climate Prediction Center / NCEP September 19, 2005.
Three-Dimensional Structure and Evolution of the Moisture Field in the MJO Adames, A., and J. M. Wallace, 2015: Three-dimensional structure and evolution.
Tropical Convection and MJO
Carl Schreck1 Dave Margolin2 Jay Cordeira2,3
Hongyan Zhu, Harry Hendon and Rachel Stratton
Equatorial Waves.
Presentation transcript:

Precipitation is a strong increasing, non-linear function of lower free tropospheric humidity Diabatic heating profile result of integrated effects of cloud population and radiation Diabatic heating structure influences large-scale circulation response Large-scale circulation response alters moisture field MJO ????

SLHFOLR in ERAi import neutral /export export Eddy Mixing

westerly mean state west-east moisture gradient easterly mean state east-west moisture gradient easterlies poleward of ~7.5° pole-equator moisture gradient

0°0° 90° 180° 270° each gridpoint has its own “phase” gridpoint phase

0°0° 90° 180° 270° corresponds to RMM phase of maximum (+) MJO related anomaly in a variable gridpoint phase RMM phase EX: for zonal wind this corresponds to maximum westerly winds

0°0° 90° 180° 270° corresponds to RMM phase of maximum (-) MJO related anomaly in a variable gridpoint phase RMM phase EX: for zonal wind this corresponds to maximum easterly winds

0°0° 90° 180° 270° Tells you where you are in MJO lifecycle gridpoint phase RMM phase 45°prior to maximum (+) anomaly

0°0° 90° 180° 270° Tells you where you are in MJO lifecycle gridpoint phase RMM phase 45°after maximum (+) anomaly

Identifies at what “RMM” phase maximizes at each location Objectively calculated from EOF structure DYNAMO TOGA-COARE

Suppressed Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Peak of convection ( )

Suppressed Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Transition to Enhanced Enhanced Transition to Suppressed Suppressed ??

Substantial cancelation in lat. average Just after peak of convection SLHF

Suppressed Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Transition to Enhanced Enhanced Transition to Suppressed Suppressed

Transition to Enhanced Enhanced Transition to Suppressed Suppressed Near complete cancelation, all times, everywhere Radiation Dominant…..Missing Physics?

Suppressed Transition to Enhanced Enhanced Transition to Suppressed Suppressed Horizontal Advection SLHF

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.