Search Results - "Mitra, Ashis K."

Assessment of TRMM‐based TMPA‐3B42 and GSMaP precipitation products over India for the peak southwest monsoon season by Prakash, Satya, Mitra, Ashis K., Rajagopal, E. N., Pai, D. S.

“…ABSTRACT Reliable information of rainfall and its variability at finer spatio‐temporal scales over the Indian monsoon region is crucial for various…”
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Novel evaluation of sub‐seasonal precipitation ensemble forecasts for identifying high‐impact weather events associated with the Indian monsoon by Kolusu, Seshagiri Rao, Mittermaier, Marion, Robbins, Joanne, Ashrit, Raghavendra, Mitra, Ashis K.

“…We assess the skill of the fully coupled lagged ensemble forecasts from GloSea5‐GC2, for the sub‐seasonal to seasonal (S2S) timescale up to 4 weeks, with the…”
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How Accurately Satellite Precipitation Products Capture the Tropical Cyclone Rainfall? by Reddy, M. Venkatarami, Mitra, Ashis. K., Momin, I. M., Krishna, U. V. Murali

“…The landfall tropical cyclones (TCs) produce heavy rainfall, which has a large socio-economic impact. The TC rainfall causes significant flooding and is a…”
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From TRMM to GPM: How well can heavy rainfall be detected from space? by Prakash, Satya, Mitra, Ashis K., Pai, D.S., AghaKouchak, Amir

“…•This study assesses the Integrated Multi-satellitE Retrievals for Global Precipitation Mission (IMERG).•Performance of IMERG is evaluated relative to Tropical…”
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A preliminary assessment of GPM-based multi-satellite precipitation estimates over a monsoon dominated region by Prakash, Satya, Mitra, Ashis K., AghaKouchak, Amir, Liu, Zhong, Norouzi, Hamidreza, Pai, D.S.

“…•GPM-based IMERG and GSMaP precipitation estimates are comprehensively evaluated over India for JJAS-2014.•An entropy-based approach shows a markedly…”
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Prospects and status of forecasting monthly mean subregional rainfall during the Indian summer monsoon using the coupled Unified Model by Gupta, Ankur, Mitra, Ashis K., Pandey, Avinash C.

“…While there is huge demand for regional forecasts, information needed for selection of the most appropriate temporal and spatial scales is not available. The…”
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Impact of atmospheric response of ENSO and IOD on boreal summer rainfall variability over the Indian Ocean in coupled models by Gupta, Ankur, Pandey, Avinash C., Mitra, Ashis K.

“…Most dynamical models under-predict Indian summer monsoon rainfall (ISMR) variability despite showing greater dependency on external forcings in comparison…”
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Skill of Indian summer monsoon rainfall prediction in multiple seasonal prediction systems by Jain, Shipra, Scaife, Adam A., Mitra, Ashis K.

“…We use seasonal forecasts from the Climate Historical Forecast Project (CHFP) to study the skill of multiple climate models in predicting Indian summer monsoon…”
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Influence of ASCAT soil moisture on prediction of track and intensity of landfall tropical cyclones by Routray, A., Lodh, Abhishek, Dutta, Devajyoti, George, John P., Mitra, Ashis K.

“…The current study attempted to evaluate the impact of Soil Moisture (SM) initial conditions in a regional NWP system on the simulation of land falling cyclones…”
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Error characterization of TRMM Multisatellite Precipitation Analysis (TMPA-3B42) products over India for different seasons by Prakash, Satya, Mitra, Ashis K., AghaKouchak, Amir, Pai, D.S.

“…•TMPA-3B42 rainfall products are extensively evaluated over India.•Systematic and random error are explored for different seasons.•TMPA-RT has larger random…”
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A Machine Learning (ML)-Based Approach to Improve Tropical Cyclone Intensity Prediction of NCMRWF Ensemble Prediction System by Kumar, Sushant, Dube, Anumeha, Ashrit, Raghavendra, Mitra, Ashis K.

“…Global numerical weather prediction (NWP) models, including ensemble prediction systems (EPS), are routinely used by the forecasters to predict tropical…”
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Evaluating Short-Range Forecasts of a 12 km Global Ensemble Prediction System and a 4 km Convection-Permitting Regional Ensemble Prediction System by Mamgain, Ashu, Prasad, S. Kiran, Sarkar, Abhijit, Shanker, Gauri, Dube, Anumeha, Mitra, Ashis K.

“…Information regarding the uncertainty associated with weather forecasts, particularly when they are related to a localized area at convective scales, can…”
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Evaluation and inter-comparison of high-resolution multi-satellite rainfall products over India for the southwest monsoon period by Reddy, M. Venkatarami, Mitra, Ashis K., Momin, Imranali M., Mitra, Ashim K., Pai, D. S.

“…Rainfall is one of the key drivers of the global hydrological cycle and has large socio-economic impacts. Tropical rainfall accounts for two-thirds of the…”
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Quantile mapping bias correction methods to IMDAA reanalysis for calibrating NCMRWF unified model operational forecasts by Niranjan Kumar, Kondapalli, Thota, Mohana Satyanarayana, Ashrit, Raghavendra, Mitra, Ashis K., Rajeevan, Madhavan Nair

“…This study focuses on assessing different quantile mapping (QM) bias correction approaches based on empirical and parametric methods to bias-correct the Indian…”
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Seasonal intercomparison of observational rainfall datasets over India during the southwest monsoon season by Prakash, Satya, Mitra, Ashis K., Momin, Imran M., Rajagopal, E. N., Basu, S., Collins, Mat, Turner, Andrew G., Achuta Rao, K., Ashok, K.

“…ABSTRACT The Indian monsoon is an important component of Earth's climate system, accurate forecasting of its mean rainfall being essential for regional food…”
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Comparison of TMPA-3B42 Versions 6 and 7 Precipitation Products with Gauge-Based Data over India for the Southwest Monsoon Period by Prakash, Satya, Mitra, Ashis K., Momin, Imranali M., Pai, D. S., Rajagopal, E. N., Basu, S.

“…The upgraded version 7 (V7) of the Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) products is available to the user…”
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Summer monsoon climate simulations over BIMSTEC countries using RegCM4 regional climate model by Bal, Prasanta Kumar, Mitra, Ashis K

“…Regional climate models are useful by downscaling from global climate model simulations for climate studies and climate applications at a regional scale. The…”
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Unified model rainfall forecasts over India during 2007–2018: Evaluating extreme rains over hilly regions by Sharma, Kuldeep, Ashrit, Raghavendra, Kumar, Sushant, Milton, Sean, Rajagopal, Ekkattil N, Mitra, Ashis K

“…Prediction of heavy/extreme rains is still a challenge, even for the most advanced state-of-the-art high-resolution Numerical Weather Prediction (NWP)…”
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Observational challenges in evaluating climate models by Collins, Mat, AchutaRao, Krishna, Ashok, Karumuri, Bhandari, Satyendra, Mitra, Ashis K., Prakash, Satya, Srivastava, Rohit, Turner, Andrew

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The dynamic and thermodynamic structure of the monsoon over southern India: New observations from the INCOMPASS IOP by Fletcher, Jennifer K., Parker, Douglas J., Turner, Andrew G., Menon, Arathy, Martin, Gill M., Birch, Cathryn E., Mitra, Ashis K., Mrudula, G., Hunt, Kieran M. R., Taylor, Christopher M., Houze, Robert A., Brodzik, Stella R., Bhat, G. S.

“…Some of the highest summer monsoon rainfall in South Asia falls on the windward slopes of the Western Ghats mountains on India's west coast and offshore over…”
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