Search Results - "Pillai, Prasanth A."

Moisture dynamics of the northward and eastward propagating boreal summer intraseasonal oscillations: possible role of tropical Indo-west Pacific SST and circulation by Pillai, Prasanth A., Sahai, A. K.

“…Boreal summer intraseasonal oscillation (BSISO) has complex spatial structure due to the co-existence of equatorial eastward and off-equatorial northward…”
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Efficiency of monsoon mission climate forecast system (CFSv2-T382) to predict the large-scale and regional short-term drought over India during boreal summer and its possible controlling factors by Lekshmi, Gowri Vijaya, Pillai, Prasanth A., V, Suneeth K.

“…The present study assesses the ability of Monsoon Mission CFSv2-T382 initialized at 4-month and 2-month leads (Feb IC and Apr IC hindcast) to simulate the…”
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Role of Atlantic SST anomalies in the recent ENSO predictability change in NMME model hindcasts by Pillai, Prasanth A., Dhakate, Ashish R.

“…The present study analyses the possible change in the seasonal prediction skill of El Nino Southern Oscillation (ENSO) in association with the reported climate…”
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Evaluation of Potential Predictability of Indian Summer Monsoon Rainfall in ECMWF's Fifth-Generation Seasonal Forecast System (SEAS5) by Attada, Raju, Ehsan, Muhammad Azhar, Pillai, Prasanth A.

“…Forecasts of Indian summer monsoon rainfall (ISMR: June to September, JJAS) are issued prior to the onset of rainy season. Thus, an assessment of both…”
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Assessment of hot weather seasonal temperatures over India using Monsoon Mission Coupled Forecasting System hindcasts by Rohini, P., Rajeevan, M., Rao, Suryachandra A., Pillai, Prasanth A.

“…The present study evaluates the skill of seasonal forecasts of temperatures over India during April to June using the Monsoon Mission Coupled Forecasting…”
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Comparison of MMCFS and SINTEX‐F2 for seasonal prediction of Indian summer monsoon rainfall by Pradhan, Maheswar, Rao, Suryachandra A., Doi, Takeshi, Pillai, Prasanth A., Srivastava, Ankur, Behera, Swadhin

“…A comparison of the Indian summer Monsoon Rainfall (ISMR) in two different coupled models (viz., Scale Interaction Experiment‐Frontier‐F2; SINTEX‐F2, and…”
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Simulation of monsoon intra‐seasonal oscillations in Geophysical Fluid Dynamics Laboratory models from Atmospheric Model Intercomparison Project integrations of Coupled Model Intercomparison Project phase 5 by Mandke, Sujata K., Pillai, Prasanth A., Sahai, Atul Kumar

“…The simulation of the intra‐seasonal variability (ISV), especially the fidelity of monsoon intra‐seasonal oscillations (MISO) over the South Asian summer…”
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Seasonal prediction skill of Indian summer monsoon rainfall in NMME models and monsoon mission CFSv2 by Pillai, Prasanth A., Rao, Suryachandra A., Ramu, Dandi A., Pradhan, Maheswar, George, Gibies

“…Along with good prediction skill for major SST boundary forcings such as El Niño and IOD, their appropriate teleconnection spatial patterns also need to be…”
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Different role of spring season Atlantic SST anomalies in indian summer monsoon rainfall (ISMR) variability before and after early 2000 by Pillai, Prasanth A, Dhakate, Ashish R, G, Kiran V.

“…The present study shows that the weak (out-of-phase) correlation between the boreal spring Atlantic Meridional Mode (AMM) index and Indian summer monsoon…”
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Why coupled general circulation models overestimate the ENSO and Indian Summer Monsoon Rainfall (ISMR) relationship? by Das, Renu S., Rao, Suryachandra A., Pillai, Prasanth A., Srivastava, Ankur, Pradhan, Maheswar, Ramu, Dandi A.

“…Interannual variability of the Indian Summer Monsoon Rainfall (ISMR) is modulated by Sea Surface Temperature (SST) anomalies over Indo-Pacific Oceans,…”
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Seasonal extreme rainfall over Indian monsoon region: a moisture budget analysis to distinguish the role of ENSO and non-ENSO forcing by Dhakate, Ashish R., Pillai, Prasanth A.

“…Indian summer monsoon rainfall (ISMR) variability of ± 10% of its long-term mean leads to flood and drought, affecting the life and economic situation of the…”
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Role of south-west Indian orography in modulating large-scale monsoon circulation by Das, Renu S., Rao, Suryachandra A., Pillai, Prasanth A., Pradhan, Maheswar, Srivastava, Ankur

“…During the summer monsoon season, the Indian region experiences prominent south-westerly winds that extend up to the Philippines. These south-westerly winds…”
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Impact of reduced ENSO variability and amplitude on ISMR prediction in the long‐lead forecasts of monsoon mission CFS by Pillai, Prasanth A., Rao, Suryachandra A., V. Gangadharan, Kiran, Pradhan, Maheswar, Srivastava, Ankur, Jain, Deepesh K.

“…Despite the reduction in interannual variability and amplitude of El Nino Southern Oscillation (ENSO) after 2000, its influence on Indian summer monsoon…”
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Assessment of extreme seasonal rainfall over India in current seasonal coupled models during the recent period by Ramu, Dandi A., Dhakate, Ashish R., Pillai, Prasanth A., G, Rambabu, Sreenivas, P., Saikrishna, T. S.

“…The present study analyses the performance of recent seasonal prediction coupled models in simulate the seasonal extremes (June through September) over the…”
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Impact of the tropical Pacific SST biases on the simulation and prediction of Indian summer monsoon rainfall in CFSv2, ECMWF-System4, and NMME models by Pillai, Prasanth A., Rao, Suryachandra A., Srivastava, Ankur, Ramu, D. A., Pradhan, Maheswar, Das, Renu S.

“…Present study analyses the role of tropical Pacific sea surface temperature (SST) biases in simulating the mean and inter-annual variability of Indian summer…”
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Indian summer monsoon intra‐seasonal oscillation associated with the developing and decaying phase of El Niño by Pillai, Prasanth A., Chowdary, Jasti S.

“…ABSTRACT The present study investigates the characteristics of active and break cycles associated with the Indian summer monsoon (ISM) during developing and…”
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Recent changes in the trend, prominent modes, and the interannual variability of Indian summer monsoon rainfall centered on the early twenty-first century by Devika, M. V., Pillai, Prasanth A.

“…In this study, the recent changes in rainfall trend, prominent modes, and interannual variability of Indian summer monsoon rainfall (ISMR) for the period…”
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Potential predictability and actual skill of Boreal Summer Tropical SST and Indian summer monsoon rainfall in CFSv2-T382: Role of initial SST and teleconnections by Pillai, Prasanth A., Rao, Suryachandra A., Das, Renu S., Salunke, Kiran, Dhakate, Ashish

“…The present study assess the potential predictability of boreal summer (June through September, JJAS) tropical sea surface temperature (SST) and Indian summer…”
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Recent changes in the major modes of Asian summer monsoon rainfall: influence of ENSO-IOD relationship by Pillai, Prasanth A, Ramu, D. A., Nair, Ravikumar C

“…Indo-Pacific Ocean sea surface temperature (SST) anomalies in the form of Indian Ocean Dipole (IOD) and El Niño-Southern Oscillation (ENSO) have a major role…”
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Impact of El Niño Modoki on Indian summer monsoon rainfall: Role of western north Pacific circulation in observations and CMIP5 models by Dandi, Ramu A., Chowdary, Jasti S., Pillai, Prasanth A., Sidhan N. S., Sradhara, K, Koteswararao, S.S.V.S., Ramakrishna

“…The Indian summer monsoon (ISM) rainfall is often influenced by El Niño‐Southern Oscillation (ENSO) on the interannual time scale. Physical mechanisms that…”
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