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Ajaya Ravindran

Senior Scientist

    20002019
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    Research Output 2000 2019

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    2019

    Atlantic Zonal Mode: An Emerging Source of Indian Summer Monsoon Variability in a Warming World

    Sabeerali, C. T., Ravindran, A., Bangalath, H. K. & Chen, N., Apr 28 2019, In : Geophysical Research Letters. 46, 8, p. 4460-4467 8 p.

    Research output: Contribution to journalArticle

    monsoons
    summer
    emerging
    monsoon
    warming
    2018

    Decline and poleward shift in Indian summer monsoon synoptic activity in a warming climate

    Sandeep, S., Ravindran, A., Boos, W. R., Sabin, T. P. & Praveen, V., Jan 1 2018, In : Proceedings of the National Academy of Sciences of the United States of America. 115, 11, p. 2681-2686 6 p.

    Research output: Contribution to journalArticle

    low pressure system
    monsoon
    warming
    climate
    summer

    Loss of predictive skill of indian summer monsoon rainfall in NCEP CFSv2 due to misrepresentation of Atlantic zonal mode

    Sabeerali, C. T., Ravindran, A. & Rao, S. A., Jan 1 2018, (Accepted/In press) In : Climate Dynamics.

    Research output: Contribution to journalArticle

    monsoon
    rainfall
    summer
    teleconnection
    prediction

    Modulation of Winter Precipitation Dynamics Over the Arabian Gulf by ENSO

    Sandeep, S. & Ravindran, A., Jan 16 2018, In : Journal of Geophysical Research: Atmospheres. 123, 1, p. 198-210 13 p.

    Research output: Contribution to journalArticle

    Persian Gulf
    gulfs
    winter
    Arabian Sea
    oscillation

    On the shortening of Indian summer monsoon season in a warming scenario

    Sabeerali, C. T. & Ravindran, A., Mar 1 2018, In : Climate Dynamics. 50, 5-6, p. 1609-1624 16 p.

    Research output: Contribution to journalArticle

    monsoon
    warming
    summer
    simulation
    wind shear

    Predicting monsoon intraseasonal precipitation using a low-order nonlinear stochastic model

    Chen, N., Majda, A., Sabeerali, C. T. & Ravindran, A., Jun 1 2018, In : Journal of Climate. 31, 11, p. 4403-4427 25 p.

    Research output: Contribution to journalArticle

    monsoon
    oscillation
    time series
    spectral analysis
    longwave radiation
    2017

    Extraction and prediction of indices for monsoon intraseasonal oscillations: an approach based on nonlinear Laplacian spectral analysis

    Sabeerali, C. T., Ravindran, A., Giannakis, D. & Majda, A., Jan 12 2017, (Accepted/In press) In : Climate Dynamics. p. 1-20 20 p.

    Research output: Contribution to journalArticle

    spectral analysis
    monsoon
    oscillation
    prediction
    precipitation (climatology)
    2016

    Effect of stratiform heating on the planetary-scale organization of tropical convection

    Deng, Q., Khouider, B., Majda, A. & Ravindran, A., 2016, In : Journal of the Atmospheric Sciences. 73, 1, p. 371-392 22 p.

    Research output: Contribution to journalArticle

    convection
    heating
    convective system
    cold pool
    stratiform cloud

    Intensification of upwelling along Oman coast in a warming scenario

    Praveen, V., Ravindran, A., Valsala, V. & Sandeep, S., Jul 28 2016, In : Geophysical Research Letters. 43, 14, p. 7581-7589 9 p.

    Research output: Contribution to journalArticle

    Oman
    monsoons
    upwelling water
    coasts
    upwelling

    Role of stratiform heating on the organization of convection over the monsoon trough

    Ravindran, A., Khouider, B., Majda, A. & Deng, Q., Feb 25 2016, (Accepted/In press) In : Climate Dynamics. p. 1-20 20 p.

    Research output: Contribution to journalArticle

    trough
    monsoon
    low pressure system
    convection
    heating

    Wintertime precipitation variability over the Arabian Peninsula and its relationship with ENSO in the CAM4 simulations

    Niranjan Kumar, K., Ouarda, T. B. M. J., Sandeep, S. & Ravindran, A., Oct 1 2016, In : Climate Dynamics. 47, 7-8, p. 2443-2454 12 p.

    Research output: Contribution to journalArticle

    Southern Oscillation
    teleconnection
    simulation
    Rossby wave
    climate
    2015

    On the relationship between mean monsoon precipitation and low pressure systems in climate model simulations

    Praveen, V., Sandeep, S. & Ravindran, A., Jan 1 2015, In : Journal of Climate. 28, 13, p. 5305-5324 20 p.

    Research output: Contribution to journalArticle

    low pressure system
    climate modeling
    monsoon
    simulation
    summer

    Poleward shift in Indian summer monsoon low level jetstream under global warming

    Sandeep, S. & Ravindran, A., Jul 26 2015, In : Climate Dynamics. 45, 1-2, p. 337-351 15 p., 2261.

    Research output: Contribution to journalArticle

    global warming
    monsoon
    warming
    summer
    vorticity
    2014

    High-frequency study of epibenthic megafaunal community dynamics in Barkley Canyon: A multi-disciplinary approach using the NEPTUNE Canada network

    Matabos, M., Bui, A. O. V., Mihály, S., Aguzzi, J., Juniper, S. K. & Ravindran, A., Feb 1 2014, In : Journal of Marine Systems. 130, p. 56-68 13 p.

    Research output: Contribution to journalArticle

    community dynamics
    canyons
    canyon
    Canada
    wavelet

    Origin of cold bias over the Arabian Sea in climate models

    Sandeep, S. & Ravindran, A., Jan 1 2014, In : Scientific Reports. 4, 6403.

    Research output: Contribution to journalArticle

    climate modeling
    sea surface temperature
    monsoon
    spring (season)
    summer

    Simulation of monsoon intraseasonal oscillations in a coarse-resolution aquaplanet GCM

    Ravindran, A., Khouider, B. & Majda, A., Aug 16 2014, In : Geophysical Research Letters. 41, 15, p. 5662-5669 8 p.

    Research output: Contribution to journalArticle

    intraseasonal variations
    monsoons
    climate models
    global climate
    warm pool
    2013

    A year in Barkley Canyon: A time-series observatory study of mid-slope benthos and habitat dynamics using the NEPTUNE Canada network

    Juniper, S. K., Matabos, M., Mihály, S., Ravindran, A., Gervais, F. & Bui, A. O. V., Aug 1 2013, In : Deep-Sea Research Part II: Topical Studies in Oceanography. 92, p. 114-123 10 p.

    Research output: Contribution to journalArticle

    canyon
    benthos
    observatory
    time series
    habitat

    Realistic initiation and dynamics of the Madden-Julian Oscillation in a coarse resolution aquaplanet GCM

    Ravindran, A., Khouider, B. & Majda, A., Dec 16 2013, In : Geophysical Research Letters. 40, 23, p. 6252-6257 6 p.

    Research output: Contribution to journalArticle

    Madden-Julian Oscillation
    Madden-Julian oscillation
    climate models
    global climate
    climate modeling

    The canadian seasonal to interannual prediction system. part I: Models and initialization

    Merryfield, W. J., Lee, W. S., Boer, G. J., Kharin, V. V., Scinocca, J. F., Flato, G. M., Ravindran, A., Fyfe, J. C., Tang, Y. & Polavarapu, S., Aug 14 2013, In : Monthly Weather Review. 141, 8, p. 2910-2945 36 p.

    Research output: Contribution to journalArticle

    prediction
    climate modeling
    climate
    meteorology
    sea ice
    2012

    On the relationship between Indian summer monsoon withdrawal and Indo-Pacific SST anomalies before and after 1976/1977 climate shift

    Sabeerali, C. T., Rao, S. A., Ravindran, A. & Murtugudde, R., Jul 1 2012, In : Climate Dynamics. 39, 3, p. 841-859 19 p.

    Research output: Contribution to journalArticle

    temperature anomaly
    monsoon
    sea surface temperature
    climate
    summer
    2011

    Poleward propagation of boreal summer intraseasonal oscillations in a coupled model: Role of internal processes

    Ravindran, A., Annamalai, H., Luo, J. J., Hafner, J. & Yamagata, T., Sep 1 2011, In : Climate Dynamics. 37, 5, p. 851-867 17 p.

    Research output: Contribution to journalArticle

    oscillation
    air-sea interaction
    moisture
    summer
    anomaly
    2010

    Composite structure of monsoon low pressure systems and its relation to Indian rainfall

    Krishnamurthy, V. & Ravindran, A., Aug 1 2010, In : Journal of Climate. 23, 16, p. 4285-4305 21 p.

    Research output: Contribution to journalArticle

    low pressure system
    monsoon
    rainfall
    drought
    trough

    Increasing trend of synoptic activity and its relationship with extreme rain events over central India

    Ravindran, A., Merryfield, W. J. & Kharin, V. V., Feb 1 2010, In : Journal of Climate. 23, 4, p. 1004-1013 10 p.

    Research output: Contribution to journalArticle

    low pressure system
    rainfall
    annual variation
    monsoon
    disturbance

    Variability of Indian summer monsoon in a new upper tropospheric humidity data set

    Xavier, P. K., John, V. O., Buehler, S. A., Ravindran, A. & Sijikumar, S., Mar 1 2010, In : Geophysical Research Letters. 37, 5, L05705.

    Research output: Contribution to journalArticle

    monsoons
    summer
    humidity
    troposphere
    monsoon
    2009

    Influence of Indian Ocean Dipole on boreal summer intraseasonal oscillations in a coupled general circulation model

    Ravindran, A., Rao, S. A., Luo, J. J. & Yamagata, T., Mar 27 2009, In : Journal of Geophysical Research Atmospheres. 114, 6

    Research output: Contribution to journalArticle

    intraseasonal variations
    General Circulation Models
    Indian Ocean
    summer
    general circulation model
    2008
    warming
    rainfall
    natural disaster
    temperature anomaly
    Indian Ocean Dipole

    Influence of Indian ocean dipole on poleward propagation of boreal summer intraseasonal oscillations

    Ravindran, A., Rao, S. A. & Yamagata, T., Nov 1 2008, In : Journal of Climate. 21, 21, p. 5437-5454 18 p.

    Research output: Contribution to journalArticle

    oscillation
    summer
    anomaly
    air-sea interaction
    Indian Ocean Dipole
    2007

    Dependence of simulation of boreal summer tropical intraseasonal oscillations on the simulation of seasonal mean

    Ravindran, A. & Goswami, B. N., Feb 1 2007, In : Journal of the Atmospheric Sciences. 64, 2, p. 460-478 19 p.

    Research output: Contribution to journalArticle

    monsoon
    oscillation
    summer
    simulation
    cumulus

    Simulation of South-Asian summer monsoon in a GCM

    Ravindran, A., Oct 1 2007, In : Pure and Applied Geophysics. 164, 10, p. 2117-2140 24 p.

    Research output: Contribution to journalArticle

    monsoons
    summer
    general circulation model
    monsoon
    simulation
    2003

    Clustering of synoptic activity by Indian summer monsoon intraseasonal oscillations

    Goswami, B. N., Ravindran, A., Xavier, P. K. & Sengupta, D., Apr 15 2003, In : Geophysical Research Letters. 30, 8

    Research output: Contribution to journalArticle

    intraseasonal variations
    monsoons
    summer
    monsoon
    oscillation

    Potential predictability of the Asian summer monsoon on monthly and seasonal time scales

    Ravindran, A. & Goswami, B. N., Aug 1 2003, In : Meteorology and Atmospheric Physics. 84, 1-2, p. 83-100 18 p.

    Research output: Contribution to journalArticle

    monsoon
    timescale
    summer
    winter
    longwave radiation
    2001

    Estimate of predictability of monthly means in tropics from observations

    Goswami, B. N. & Ravindran, A., Jan 10 2001, In : Current Science. 80, 1, p. 56-63 8 p.

    Research output: Contribution to journalArticle

    monsoon
    longwave radiation
    oscillation
    tropics
    winter

    Intraseasonal oscillations and interannual variability of the Indian summer monsoon

    Goswami, B. N. & Ravindran, A., Mar 15 2001, In : Journal of Climate. 14, 6, p. 1180-1198 19 p.

    Research output: Contribution to journalArticle

    monsoon
    oscillation
    vorticity
    summer
    probability density function
    2000

    A common spatial mode for intra-seasonal and inter-annual variation and predictability of the Indian summer monsoon

    Ravindran, A. & Goswami, B. N., Oct 25 2000, In : Current Science. 79, 8, p. 1106-1111 6 p.

    Research output: Contribution to journalArticle

    annual variation
    monsoon
    summer
    oscillation
    longwave radiation