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Increase in Indian summer monsoon precipitation as a response to doubled atmospheric CO2: CMIP6 simulations and projections
Indian summer monsoon (ISM) inter-annual variability on spatial and temporal scale is evaluated with CMIP6 models based on historical simulations. We have selected the best ten models based on the model’s abil...
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Article
Understanding the role of cloud microphysical processes behind the Indian summer monsoon rainfall
Cloud microphysical processes and rainfall over the Indian summer monsoon (ISM) region are unique because of the strong interaction among clouds, thermodynamics, and dynamics. The heating and presence of water...
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Article
Role of convective and microphysical processes on the simulation of monsoon intraseasonal oscillation
The study explores the role of ice-phase microphysics and convection for the better simulation of Indian summer monsoon rainfall (ISMR) and monsoon intraseasonal oscillation (MISO). Sensitivity experiments hav...
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Role of cloud microphysics in improved simulation of the Asian monsoon quasi-biweekly mode (QBM)
A major sub-seasonal variability of the tropics and sub-tropics, the quasi-biweekly mode (QBM), is known to have significant influence on the seasonal mean of the south Asian monsoon rainfall. A coupled Atmosp...
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Article
New spatial and temporal indices of Indian summer monsoon rainfall
The overall yearly seasonal performance of Indian southwest monsoon rainfall (ISMR) for the whole Indian land mass is presently expressed by the India Meteorological Department (IMD) by a single number, the to...
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Article
SST and OLR relationship during Indian summer monsoon: a coupled climate modelling perspective
The study mainly investigates sea surface temperature (SST) and outgoing longwave radiation (OLR) relationships in coupled climate model. To support the analysis, high-level cloud and OLR relationship is also ...
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Article
Predictability of global monsoon rainfall in NCEP CFSv2
This study evaluates the actual and potential prediction skill of the global monsoon rainfall using hindcast simulations by NCEP CFSv2 at zero to three lead forecast months (L0–L3). It is shown that the model ...
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Article
Influence of upper ocean on Indian summer monsoon rainfall: studies by observation and NCEP climate forecast system (CFSv2)
This study explores the role played by ocean processes in influencing Indian summer monsoon rainfall (ISMR) and compares the observed findings with National Centers for Environmental Prediction (NCEP)-coupled ...
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Article
Indian summer monsoon simulations with CFSv2: a microphysics perspective
The present study explores the impact of two different microphysical parameterization schemes (i.e. Zhao and Carr, Mon Wea Rev 125:1931-1953, 1997:called as ZC; Ferrier, Amer Meteor Soc 280-283, 2002: called a...
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Article
Seasonal prediction of Indian summer monsoon rainfall in NCEP CFSv2: forecast and predictability error
A detailed analysis of sensitivity to the initial condition for the simulation of the Indian summer monsoon using retrospective forecast by the latest version of the Climate Forecast System version-2 (CFSv2) i...
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Article
Indian summer monsoon precipitating clouds: role of microphysical process rates
The budget analysis of microphysical process rates based on Modern Era Retrospective-analysis for Research and Applications (MERRA) products are presented in the study. The relative importance of different mic...
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Seasonal prediction of Indian summer monsoon in NCEP coupled and uncoupled model
This study has identified probable factors that govern ISMR predictability. Furthermore, extensive analysis has been performed to evaluate factors leading to the predictability aspect of Indian Summer Monsoon ...
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Article
Influence of Eurasian snow on Indian summer monsoon in NCEP CFSv2 freerun
The latest version of the state-of-the-art global land–atmosphere–ocean coupled climate forecast system of NCEP has shown considerable improvement in various aspects of the Indian summer monsoon. However, clim...
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Article
Variability of the TRMM-PR total and convective and stratiform rain fractions over the Indian region during the summer monsoon
Level 3 (3A25) TRMM Precipitation Radar (PR) data are used for 13 years period (1998–2010) to prepare climatology of TRMM PR derived near surface rain (Total rain) and rain fractions for the 4-months duration ...
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Article
Status of NCEP CFS vis-a-vis IPCC AR4 models for the simulation of Indian summer monsoon
National Centers for Environmental Prediction (NCEP) Coupled Forecast System (CFS) is selected to play a lead role for monsoon research (seasonal prediction, extended range prediction, climate prediction, etc....
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Article
Evaporation-precipitation variability over Indian Ocean and its assessment in NCEP Climate Forecast System (CFSv2)
An attempt has been made to explore all the facets of Evaporation-Precipitation (E-P) distribution and variability over the Indian Ocean (IO) basin using Objectively Analyzed air-sea Fluxes (OAFlux) data and s...
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Article
ENSO, IOD and Indian Summer Monsoon in NCEP climate forecast system
El Niño-Southern Oscillation (ENSO), Indian Ocean Dipole (IOD) and Indian Summer Monsoon rainfall features are explored statistically and dynamically using National Centers for Environment Prediction (NCEP) Cl...
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Article
Why is Indian Ocean warming consistently?
Observations have shown that the Indian Ocean is consistently warming and its warm pool is expanding, particularly in the recent decades. This paper attempts to investigate the reason behind these observations...
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Article
Anomalous low tropospheric column ozone over Eastern India during the severe drought event of monsoon 2002: a case study
The present study is an attempt to examine some of the probable causes of the unusually low tropospheric column ozone observed over eastern India during the exceptional drought event in July 2002.
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Rain rate measurements over global oceans from IRS-P4 MSMR
In this paper rain estimation capability of MSMR is explored. MSMR brightness temperature data of six channels corresponding to three frequencies of 10, 18 and 21 GHz are colocated with the TRMM Microwave Imag...