1. CPC Web Team HOME > Climate & Weather Linkage > Madden/Julian Oscillation (MJO) > Prediction of the MJO: Velocity Potential at 200 hPa PREDICTION OF THE MADDEN-JULIAN OSCILLATION (MJO
  2. Forecast of MJO associated anomalous OLR for the next 15 days from the ensemble mean GFS based on forecasts of RMM1 and RMM2. Blue (yellow/red) shades show negative (positive) OLR anomalies and enhanced (suppressed) convection. Forecasts do not include direct contributions from other climate modes such as ENSO, monsoons, etc. - only the MJO
  3. ed from the ten time-lagged patterns of the first EEOF of CHI200

MJO Indices : Satellite / Outgoing Longwave Radiation (OLR) CPC: WH: Vel Potential / IR: Global IR: OLR Map: OLR Time-Lon : 850-hPa and 200-hPa Tropical Winds: 850 Total: 850 Anom: 850 Time-Lon: 200 Total: 200 Anom: 200 Time-Lon : 500-hPa and 200-hPa Heights and Wind: Velocity Potential: Ocean: NH 500: SH 500: Global 200: 500 5-Day: 200 5-Day. The Climate Prediction Center (CPC) Madden Julian Oscillation index (MJO) is a dataset that allows evaluation of the strength and phase of the MJO during the dataset period. The index is based on pentad 200-hPa velocity potential data equator ward of 30?N during El Ni?o/Southern Oscillation (ENSO) neutral and weak ENSO winters (November-April) in 1979-2000

A subgroup was organized to focus on MJO operational prediction and was tasked to develop a MJO forecast metric for comparison of dynamical models from operational global prediction systems. The activity is housed at CPC where the application, display, and evaluation of these MJO model forecasts is being done •The RMM index and CPC velocity potential index both depict an active MJO with the enhanced phase now over the Western Hemisphere. •Rossby wave activity is becoming increasingly apparent in the wind and OLR fields, and will interfere with the MJO over the next week or so

Climate Prediction Center - Daily MJO Indice

  1. Using the blocking index of Tibaldi and Molteni (1990) we can consider the frequency of DJF blocked days for Neutral, Warm and Cold episodes as defined by the magnitude of the SST anomalies in the tropical Pacific. Cold episodes are defined as [C+,C], warm episodes [W+,W], and neutral episodes as [W-,C-,N]
  2. Cpc Mjo. Collected from the entire web and summarized to include only the most important parts of it. Can be used as content for research and analysis. Home Blog Pro Plans B2B solution Login. Advanced searches left . 3/3. Search only database of 7.4 mil and more summaries. Cpc Mjo Summarized by PlexPage. Last Updated: 09.
  3. Shown below are statistical MJO index forecast products. Three statistical MJO forecasts are shown and all involve application of the Wheeler and Hendon (2004) methodology to historical data. Statistical models include: (1) Constructed Analogue (Van den dool et al. (1994; 1995; 2003; 2007)), lagged linear regression (Wheeler and Hendon (2004), Jones et al. (2004), Seo et al. (2008), among.

c onstru ct ten MJO indices by regressing the filtered pentad CHI200 onto each of the ten patterns. So positive indice s corre spo nd to the co nvec tively active phase of t he MJO at different longitudes. Those MJO indices have been implemented for the real time monitoring of the MJO at CPC: http://www.cpc.ncep.noaa.gov MJO Composites. The MJO is active, with robust amplitude and eastward propagation evident on both the CPC velocity potential based and RMM-based MJO indices. The enhanced phase of the MJO is currently over the Americas. There is some destructive interference between the MJO signal and the base state (potentially emerging La Niña conditions)

The Madden-Julian oscillation ( MJO) is the largest element of the intraseasonal (30- to 90-day) variability in the tropical atmosphere. It was discovered in 1971 by Roland Madden and Paul Julian of the American National Center for Atmospheric Research (NCAR). It is a large-scale coupling between atmospheric circulation and tropical deep. The MJO likely contributed to the development of multiple tropical cyclones (TCs) across the East Pacific and Atlantic basins during early to mid-August. On August 16, Tropical Storm Fred made landfall near Cape San Blas in Florida's Panhandle CPC is actively developing additional MJO-related forecast tools to aid its operational mission for the monitoring, assessment, and prediction of the MJO and its associated impacts. We present recent work for products based on data from the Global Forecast System (GFS) and Climate Forecast System (CFS) forecast models developed at the National Centers for Environmental Prediction (NCEP)

1 Introduction CPC is actively developing additional MJO related forecast tools to aid. its operational mission for the monitoring assessment and predictionof the MJO and its associated impacts We apply the Wheeler and Hendon 2004 MJO identificationmethodology Although this approach for identification of the MJO iswell established it has only been recently that it has been applied to (CPC) is committed to comprehensively monitoring, assessing and predicting the MJO in realtime operations. The CPC is particularly interested in and actively pursuing methods to better understand the MJO and include its potential predictability more effectively into CPC operations - both to improve the current forecasting capabilit Invited speaker: 18th Annual Maxar Energy Conference, October, 2019 on the MJO and ENSO at CPC マッデン・ジュリアン振動. アメリカ気候予報センター (CPC)による2006年のMJO指数の推移(5日移動平均、EEOF解析)。. 縦が時間、横が経度であり、対流活動が活発な青い領域が時間とともに東に移動していく様子が分かる。. マッデン・ジュリアン振動 (Madden Julian Oscillation:MJO)とは、熱帯赤道域上空で対流活動が活発な領域(大気循環場)が約1~2か月かけて. CPC Week 3-4 Precipitation and Temperature Anomalies Precipitation Anomalies ||| Temperature Anomalies Recent Temperature Anomalies Last 7-Days of Temperature Anomalies ||| Last 14-Days of Temperature Anomalies ||| Last 30-Days of Temperature Anomalies Most Recent Global Sea Surface Temperature Anomalies Useful Link

Search the CPC. Introduction WebPage Description Climate Forecasts CFSv2 Forecasts African Training Desk Introduction Requirements Curriculum Visitor Countries Monsoon Desk ENSO and MJO. CPC ENSO Page: CPC MJO Page: Weekly MJO Update: Reserved Future Use. SATELLITE/GAUGE PRECIPITATION ESTIMATE 1km of the LRT or CPT can reduce fluctuations caused by small-scale perturbations. Pilch Kedzierski et al. (2016) described the role of MJO, QBO, Kelvin, inertia-gravity, and Rossby waves in modulating the maximum N2 (maxN2) above the LRT in the tropics using the long-term COSMIC dataset. Fine-scale temperature profiles (T) from GPS-RO mea The Climate Prediction Center (CPC) is committed to comprehensively monitoring, assessing and predicting the MJO in realtime operations. The CPC is particularly interested in and actively pursuing methods to better understand the MJO and include its potential predictability more effectively into CPC operations -- both to improve the current forecasting capability in the week 2-4 time frame but also in the tropics through weekly hazard assessments Realtime MJO information that is updated daily or weekly can be found on the NOAA CPC MJO webpage. References Madden R. and P. Julian, 1971: Detection of a 40-50 day oscillation in the zonal wind in the tropical Pacific, J. Atmos. Sci ., 28 , 702-708 Title: CPC Experimental MJO Forecast Tools Using Operational GEFS and CFS Data Author: Qin Zhang Last modified by: wd52qz Created Date: 11/25/2007 3:05:04 PM Document presentation format: On-screen Show Other titles: Arial Wingdings Times New Roman Clouds Intra-seasonal Variability in the NCEP Global Ensemble Forecast System 1

NOAA CPC MJO Forecast . Related Projects. AMIE: CINDY2011: HARIMAU MISMO Project Year of Tropical Convection (YOTC) DYNAMO Image Gallery. DYNAMO Images; Project Websites. S-PolKa Users Guide. CINDY-DYNAMO French Data Center. CICS-NC MJO Monitoring. CSU DYNAMO Radiosonde Network. CSU TOGA Radar. Digital Media Select a daily time series Climate indices. Select a time series by clicking on the name ENSO: NINO12, NINO3, NINO3.4, NINO4 (1981-now, from daily SST OI v2 CPC Ell Niño / La Niña: Weekly El Nino Discussion: CPC ENSO Home Page: Multivariate ENSO Index: JAMSTEC Long-Range El Nino Forecast: ENSO Past/Present: Weekly Nino SST Values: Current AMO Value: MJO Real Time Fcsts. NCEP MJO / Graphics/Forecasts: CPC MJO / Weekly Update (PPT) MJO - Paul Roundy: Good ENSO Comparison Site: TIGGE MJO Forecasts.

Climate Prediction Center (CPC) Madden-Julian Oscillation (MJO) Index - Datasets

  1. CPC Information CPC Web Team : HOME > Climate & Weather Linkage > Madden-Julian Oscillation > Constructed Analogue MJO Forecast Verification : Recent verification information for the Constructed Analogue MJO index forecast. Historical verification is also provided using the available data record..
  2. Historical MJO Indices The figures below show the ten MJO indices, ordered from 1 to 10 and displayed from top to bottom, for selected winter seasons. Note that the pentad data used in the MJO composites are labeled as blue dots, and the MJO indices are standardized by the standard deviation in the ENSO-neutral and weak ENSO winters (November-April) during 1979-2000
  3. The Climate Prediction Center (CPC) Madden Julian Oscillation index (MJO) is a dataset that allows evaluation of the strength and phase of the MJO during the dataset period. The index is based on..

MJO monitoring page: from NOAA/CPC Includes various plots of the current status of the 30-60 day oscillation including OLR anomalies, geopotential height and other animations and satellite photos. Also includes a very nice FAQ on the oscillation mechanism and evolution and it's relationship to other climate processes The MJO phase diagram illustrates the progression of the MJO through different phases, which generally coincide with locations along the equator around the globe. RMM1 and RMM2 are mathematical methods that combine cloud amount and winds at upper and lower levels of the atmosphere to provide a measure of the strength and location of the MJO CPC - MJO Guidance CPC - MJO Satellite BOM - MJO Tropical Tidbits Paul Roundy Rutgers Snow Cover NH Snow Cover NA Snow Cover Strat - Berlin Strat - Zach Lawrence Strat - Hannah Attard Strat - Tokyo Climate Center Strat - NOAA Strat - NAS The MJO phase diagram and temperature and precipitation graphics are from the NOAA CPC. More information about the techniques used can be found here. MODEL KEY: NCPO: National Centers for Environmental Prediction - Operational Global Forecast System NCPE: National Centers for Environmental Prediction - Ensemble Global Forecast Syste Fase MJO di atas yang dihasilkan oleh 3 model prediksi milik Climate Prediction Center (CPC) dari NOAA yaitu model CA, ARM dan PCL. MJO adalah singkatan dari Madden-Julian Oscillation atau Osilasi Madden Julian yang merupakan gangguan tropis yang merambat ke arah timur sepanjang daerah tropis dengan siklus 30-60 hari

In the U.S., the National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center (CPC) has developed statistical forecast guidance derived from Johnson et al. to inform their Week 3-4 Outlooks, demonstrating the potential for statistical relationships rooted in the MJO, El Niño-Southern Oscillation (ENSO), and linear trend to enhance forecasts beyond two weeks The MJO frequency patterns are the lag response of the underlying ocean We obtained the 2.5 × 2.5 pentad CPC Merged Analysis of Precipitation (CMAP) data and interpolated the data to. (2) The location of above-average and below-average tropical convection can be seen in this graphic on the CPC MJO page. (3) It is also believed that since the MJO itself is altered, then so are the atmospheric waves it produces that travel to the U.S. (4) In-phase waves have their highest and lowest points aligned The CPC MJO indices as described in section 2 have been extended to forecast mode by applying a Markov modeling approach. As in Xue et al (2000), we construct Markov model in a two step EOF analysis. The first step is decomposing 200hPa velocity potential anomalies into EEOFs (

CPC - Climate Weather Linkage: Atmospheric Blockin

CPC 30-Day Discussion. CPC One-Month Forecasts. Seasonal Forecasts. CPC 90 Day Discussion. CPC Three-Month Forecasts. CPC Long-Lead Briefing. IRI SCF IRI Flex SCF. ODA/ODF Seasonal Climate Forecast MJO: Madden-Julian Oscillation Diagnostics The Madden-Julian oscillation (MJO) is the largest element of the intraseasonal (30-90 days) variability in the tropical atmosphere. It is a large-scale coupling between atmospheric circulation and tropical deep convection.[1][2] Rather than being a standing pattern (like ENSO) it is a traveling pattern, propagating eastwards at approximately 4. マッデン・ジュリアン振動(Madden Julian Oscillation:MJO)とは、熱帯赤道域上空で対流活動が活発な領域(大気循環場)が約1~2か月かけて東に進んでいく現象で、大気振動のひとつである。 その周期は30-60日程度で、「振動」のように繰り返し発生している 30-Day Forecasts. CPC 30-Day Discussion. CPC One-Month Forecasts. Seasonal Forecasts. CPC 90 Day Discussion. CPC Three-Month Forecasts. CPC Long-Lead Briefing. IRISCF IRIFlexSCF. ODA/ODF Seasonal Climate Forecast

CPC is actively developing additional MJO-related forecast tools to aid its operational mission for the monitoring, assessment, and prediction of the MJO and its associated impacts. We present. MJO/ISO ( Madden Julian Oscillation/Intra Seasonal Oscillation) yang merupakan osilasi sub musiman dari suatu sistem interaksi laut dan atmosfer. MJO pertama kali ditemukan oleh Roland A. Madden dan Paul R. Julian pada tahun 1971, mereka menemukan semacam osilasi yang berperiode 41-53 hari pada saat menganalisis anomali angin zonal di Pasifik Tropis dengan menggunakan data tekanan 10 tahun P. CPC's SOI Sea Level Pressure Anomalies. CPC's Sea Surface Temperature Indices. OOPC's Surface Pacific Ocean Niño3.4. CAC + BoM/BMRC monthly SST Indices plot. Standard warm water indices. TAO's Warm Water Volume and ENSO page. MJO variance index. BoM's 91-day running mean of RMM1 2 +RMM2 2. MJO indices The MJO-AR relationships in these regions for this MJO phase are in line with the negative correlations in Figure 1b, revealing the spatial scale of AR activity. According to the Monte Carlo tests, these signals are most significant in the Pacific Northwest, less significant in Alaska, and not significant in California (Figures 1c-1e )

Climate Prediction Center - MJO 850-hPa Temperature Lagged

WPC-HMT Extended Range Forecast Experiment Prototype Page. Overview. Maximum Temperatur High frequency variability in OLR is typically associated with the Madden-Julian Oscillation (MJO), which is convective activity that propagates west to east in the near-equatorial region from the Indian Ocean into the Pacific Ocean approximately every 30-60 days. The latest MJO activity can be seen in CPC's graphs of Daily MJO Indices CPC CICS MJO-FCST MJO-CPC MJO-ESRL; Tropical Africa India Australia Tools MJO-JMA; Climate North CA South CA Calif 2 SFO CPC CPC-CFSv2 Drought US CDC Global-IRI NCDC Global Sunrise/Sunset; Climate AFCCC NCAR CISL-RDA CPO NCDC NOAA-Climate El Nino La Nina Animations CLIMVIS Vegetation; Climate NOAA NCDC WRCC CPC-Int NAS. The potential predictability of the Madden-Julian Oscillation (MJO) in boreal winter (November-February) is investigated using observational data for the period of 1979-2016. For various MJO indices, nonlinear local Lyapunov exponents are computed to quantify the MJO predictability under the easterly and westerly phases of the Quasi-Biennial Oscillation (easterly: EQBO and westerly: WQBO. 馬登-朱利安振盪(Madden Julian Oscillation, MJO)為熱帶赤道地區的顯著對流與顯著無對流的區塊,在北半球冬季主要以週期約30-90天的速度向東前進的現象,是大氣振盪的一種。這種振盪現象,一般以30至60日為週期重覆出現,也被稱為「30-60日振盪」,屬於季內震盪(intraseasonal oscillation)的其中一種類型.

Video: Cpc Mjo - Summarized by Plex

Madden-Julian oscillation - Wikipedi

The NOAA Climate Variability and Predictability (CVP) Program is hosting a webinar series on the Years of the Maritime Continent that will highlight the recent results from CVP-funded projects. The goal of the Years of the Maritime Continent (YMC) is to expedite the progress of improving understanding and prediction of local multi-scale variability of the MC weather-climate system and its. - 기후정보포털 소개 (07062) 서울특별시 동작구 여의대방로 16길 61 기상청 기후변화감시과 대표번호: 02)2181-0452 시나리오 문의: 02)2181-0406 E-mail: cl.ccmd@korea.k The MJO during that time was in phase 1. Most of July, the MJO was either weak (points inside the circle) or in phases 5 or 6. After Elsa's demise, there has been no tropical activity in the Atlantic

NWS CPC 6-10 Day Heat Index Forecast. NWS CPC Week 2 Hazards Outlook. Teleconnections (PNA, NAO, ENSO, etc.) NOAA ENSO Page. NWS CPC ENSO Page. Australia BOM ENSO Outlook. NWS CPC Teleconnection Forecasts. NWS CPC MJO Forecasts. Australia BOM MJO Forecasts. Australia BOM IOD etc. Outlooks. Climate analysis tools. NOAA PSD NCEP. MJO vs. KW The Madden-Julian Oscillation (MJO) consists of an active and suppressed phase, dominated by low-level westerly and easterly anomalies, respectively. Convection is preferred in the active phase. • A typical MJO moves eastward at 4 to 8 m s-1with a zonal extent that spans planetary to synoptic scales يُعتبر تذبذب مادن جوليان (mjo) العنصر الأكبر في التغير بين الموسمي (30 إلى 90 يومًا) في الغلاف الجوي الاستوائي. اكتُشف في عام 1971 بواسطة رولاند مادن وبول جوليان من المركز الوطني الأمريكي لأبحاث الغلاف الجوي (ncar)

Collection volume of extended summaries of the 41st NOAA Annual Climate Diagnostics and Prediction Workshop, Orono, ME, 3-6 October 201 For specifics, check out the average temperature departures associated with the MJO during December-February (DJF) and January-March (JFM) in CPC's MJO composites page. Temperature swings during this winter were awfully MJO-ish. Below are maps showing temperature departures during various periods over the last two and a half months Currently, at the Climate Prediction Center (CPC) of NCEP, the real-time monitoring of the MJO forecasts is performed using the operational GFS forecast and a couple of statistical methods. For this, the phase diagram formed by PC1 and PC2, as in WH04, is used and the real-time update is made of the latest 40-day observed MJO evolution CPC,这一种推广模式全称为:Cost Per Click。这一种推广方式是按照点击量来进行收费的,但是收费方式对于推广网站来说并不适用,因此并不常用,有的网站对APP进行了宣传,也达到了宣传效果,但是没有人进行点击,会使得推广方得不偿失

Climate Prediction Center - Global Tropical Hazards Assessmen

The Madden-Julian Oscillation (MJO) is the leading mode of intraseasonal climate variability, having profound impacts on a wide range of weather and climate phenomena. Here, we use a wavelet-based spectral Principal Component Analysis (wsPCA) to evaluate the skill of 20 state-of-the-art CMIP6 models in capturing the magnitude and dynamics of the MJO In mid-March, an MJO wave propagated into the Western Pacific (Phase 6) region, from the phase 5 region, on Figure 4.1. This figure is a phase diagram marking progression over time of the MJO through numbered MJO regions (phases), as well as the strength of the MJO wave (denoted by distance from the center circle of the solid MJO tracking line)

CPC Experimental MJO Forecast Tools Using Operational GFS and CFS Data - NASA/AD

Annual cycle of equatorially averaged (5°S-5°N) (a) MJO-filtered, surface zonal wind amplitude and (b) SST for the Pacific basin. One and one-half annual cycles are shown for clarity. Contour interval (CI) in (a) is 0.06 m s −1 and in (b) is 0.75°C. Citation: Journal of Climate 20, 3; 10.1175/JCLI4003.1. Fig. 3 The phases of the MJO CPC . MJO phase numbers in red, ENSO region numbers in black boxes . The dynamic and statistical models forecast for MJO Phase (the signal is strong if away from the center. Meet the MJO By Jon Gottschalck, NOAA Climate Prediction Center with Andrea Ray, WWA Recently there has been an upswing in interest among cli-mate and weather scientists in the Madden-Julian Oscillation or MJO, a large-scale atmospheric disturbance that strongly alters the pattern and intensity of precipitation across the global tropics Meet from anywhere. Get the whole crew together in Google Meet, where you can present business proposals, collaborate on chemistry assignments, or just catch up face to face. Businesses, schools, and other organizations can live stream meetings to 100,000 viewers within their domain

GrADS on the Web. http://wxmaps.org http://nomads.ncdc.noaa.gov/cgi-bin/pdisp/pdisp2.cgi http://nomads.ncdc.noaa.gov/cgi-bin/ncdc-ui/igra/igra.cgi http://nomad3.ncep. ติดตามปรากฏการณ์ MJO อย่างใกล้ชิดต่อไป รูปที่ 5 กราฟแสดงการพยากรณ์ MJO Index และ MJO Phase จากศูนย์ภูมิอากาศทั่วโลก โดยแบบจ าลองของศูนย์ IRI/CPC

CPC Experimental MJO Forecast Tools Using Operational GEFS - Ppt Downloa

Madden - Julian Oscillation (MJO) Click on Image to Display Larger Plot. 5-Day Mean. Normalized Enhanced/Suppressed Convection. 15-Day Mean. Normalized Enhanced/Suppressed Convection. Climate Prediction Center (CPC) -Madden - Julian Oscillation (MJO) Information First, this study uses an MJO index from the CPC based on 200 hPa velocity potential anomalies, while Maloney and Hartmann (2000a) used an MJO index based on 850 hPa wind anomalies. Second, the study period here is 1978 - 2006, while Maloney and Hartmann (2000a) used data from 1949 - 1997

Madden-Julian Oscillaiton (MJO) Click here for CPC Main Page Monthly Temperature and Precipitaiton Composites MJO Explanation (original source) QBO Historical Phase. CPC has antiviral activity against different variants of SARS-CoV-2, and this compound exerts its activity by blocking viral entry by inhibiting viral fusion on target cells. CPC acts by disrupting the integrity of the viral envelope, as previously shown for influenza virus (Popkin et al. 2017), and it equally affects distinct SARS-CoV-2 variants MJO di atas Indonesia, namun data yang digunakan cenderung hanya menggunakan data Outgoing Longwave Radiation (OLR) dan radiosonde. Banyak cara yang dilakukan orang untuk memprediksi MJO. Satu diantaranya adalah dengan melihat perilaku data MJO indeks. Secara global fenomena MJO dapat terlihat berdasarkan metode Real Tim To identify tropical waves in near real-time, the OLR and UTWV data are filtered following Wheeler & Weickmann (2001 MWR). The daily anomalies are calculated using the first 3 harmonics of the seasonal cycle for 1979-2009. Missing values are then filled using linear interpolation in space and time. The most recent 365 days of anomalies are. Seasonal activity of the Madden-Julian Oscillation (MJO) is observed to be greater during austral summer when the lower stratospheric winds are in the easterly phase of the quasi-biennial oscillation (QBO). Using initialized predictions from two coupled model seasonal prediction systems, we show a systematic impact of the QBO on the amplitude of the MJO during the first few days of the.

Climate Prediction Center - MJO Precipitation Composites

รูปที่ 5 กราฟแสดงการพยากรณ์ MJO Index และ MJO Phase จากศูนย์ภูมิอากาศทั่วโลก โดยแบบจ าลองของศูนย์ IRI/CPC Interannual variability of MJO frequency at the eight phase locations and their inter-relationship, can be visualized in a two-dimensional plane formed by the two leading MJO frequency EOFs. Bismarck Situational Awareness. The Arctic Oscillation (AO) is compares 1000 mb height anomalies pole of 20N to those across the middle latitudes. A positive AO suggests a stronger polar vortex with lower pressures near the pole, allowing the middle latitude jet stream to blow strongly and consistently from west to east, keeping colder air.

Frontier Weather, IncClimate Prediction Center - Historical MJO IndicesClimate Prediction Center - MJO Temperature Composites andCPC - Climate Weather Linkage: Madden - Julian OscillationFrontier Weather: MJO ViewerIntra and Interseasonal Oscillations: MJO, PDO

MJO Forecast: MJO Page / 2-Week Forecast / CPC MJO Velocity Potential: Saharan Air Layer: SAL Map / True Color SAL Current Lightning Strikes: River Forecasts & Observations: Buoy Data: Oceant Currents / National Buoy Center CERA Coastal Storm Surge Map: Surge Map / Surge Potential / Storm Surge? Forecast Wave Heights: NOAA Graphical Analysi The influence of El Niño/Southern Oscillation (ENSO) and Madden-Julian Oscillation (MJO) and their combined effect on the rapid intensification (RI) of tropical cyclones (TCs) in the Bay of Bengal (BoB) during the primary cyclone season (October-December) is investigated. An empirical index, called genesis potential index (GPI), is used to quantify the relative importance of four. Propagating vs. Non-propagating MJO Daehyun Kim1, Jong-Seong Kug2, and Adam H. Sobel1,3,4 1Lamont-Doherty Earth Observatory, Columbia University, New York 2Korea Institute of Ocean Science & Technology, Ansan, Korea 3Department of Applied Physics and Applied Mathematics, Columbia University, New York 4Department of Earth and Environmental Sciences, Columbia University, New Yor Index of / Name Last modified Size; CCR/ 14-Nov-2009 15:59 - CDAS/ 22-Jan-2002 20:28 - CPC-MCR/ 09-Dec-2014 15:52 - CPC