Search Results - "INDIRA RANI, S"

Validation and assimilation of INSAT atmospheric motion vectors: Case studies for tropical cyclones by Sharma, Priti, Indira Rani, S, Das Gupta, M

“…INSAT-3DR is the latest geostationary satellite launched by the Indian Space Research Organization (ISRO) as a continuation to the INSAT-3D, for enhanced…”
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Megha‐tropiques SAPHIR radiances in a hybrid 4D‐Var data assimilation system: Study of forecast impact by Kumar, Sumit, Indira Rani, S., George, John P., Rajagopal, E. N.

“…Assimilation of microwave humidity channels from various satellites plays a key role in numerical weather prediction (NWP), especially over the Tropics. This…”
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Benefits of assimilating SAPHIR observations on analysis and forecasts of tropical fields in the Met Office global model by Doherty, A., Indira Rani, S., Newman, S., Bell, W.

“…The Sondeur Atmosphérique du Profil d'Humidité Intertropicale par Radiométrie (SAPHIR) instrument provides improved sampling of tropical atmospheric moisture…”
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IMDAA: High-Resolution Satellite-Era Reanalysis for the Indian Monsoon Region by Rani, S. Indira, Arulalan, T., George, John P., Rajagopal, E. N., Renshaw, Richard, Maycock, Adam, Barker, Dale M., Rajeevan, M.

“…A high-resolution regional reanalysis of the Indian Monsoon Data Assimilation and Analysis (IMDAA) project is made available to researchers for deeper…”
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Oceansat-2 and RAMA buoy winds: A comparison by Rani, S Indira, Gupta, M Das

“…Sea surface vector winds from scatterometers onboard satellites play an important role to make accurate Numerical Weather Prediction (NWP) model analysis over…”
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Location-specific weather predictions for Sriharikota (13.72°N, 80.22°E) through numerical atmospheric models during satellite launch campaigns by Bala Subrahamanyam, D., Ramachandran, Radhika, Indira Rani, S., Sijikumar, S., Anurose, T. J., Ghosh, Asish Kumar

“…Accurate knowledge of different meteorological parameters over a launch site is very crucial for efficient management of satellite launch operations. Local…”
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Location-specific verification of near-surface air temperature from IMDAA regional reanalysis by Vishal, Jisha K, Rani, S Indira

“…Near-surface (2m) air temperature estimates from Indian Monsoon Data Assimilation and Analysis (IMDAA) regional reanalysis are verified against observations…”
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Assessing the quality of novel Aeolus winds for NWP applications at NCMRWF by Rani, S. Indira, Jangid, Buddhi Prakash, Kumar, Sumit, Bushair, M. T., Sharma, Priti, George, John P., George, Gibies, Das Gupta, M.

“…This study illustrates the validation of Aeolus Horizontal Line‐Of‐Sight (HLOS) winds, both Rayleigh‐clear and Mie‐cloudy, using in situ satellite wind…”
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The impact of hyperspectral radiances in the NCUM 4D-Var data assimilation system by Jangid, Buddhi Prakash, Rani, S. Indira, Bushair, M. T., George, John P.

“…This paper describes the combined impact of clear sky hyperspectral radiances from four space-based instruments in the National Centre for Medium Range Weather…”
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Indian monsoon data assimilation and analysis regional reanalysis: Configuration and performance by Mahmood, Sana, Davie, Jemma, Jermey, Peter, Renshaw, Richard, George, John P., Rajagopal, E. N., Rani, S. Indira

“…A high resolution, long‐term regional reanalysis over the Indian subcontinent has been developed and is currently in production. The regional reanalysis has…”
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Impact of SAPHIR radiances on the simulation of tropical cyclones over the Bay of Bengal using NCMRWF hybrid-4DVAR assimilation and forecast system by Choudhury, Devanil, Gupta, Ankur, Rani, S Indira, George, John P

“…Observing System Experiments (OSEs) were conducted to analyze the impact of assimilation of Megha-Tropique’s (MT) Sounder for Probing Vertical Profiles of…”
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IMDAA Regional Reanalysis: Performance Evaluation During Indian Summer Monsoon Season by Ashrit, Raghavendra, Indira Rani, S., Kumar, Sushant, Karunasagar, S., Arulalan, T., Francis, Timmy, Routray, Ashish, Laskar, S. I., Mahmood, Sana, Jermey, Peter, Maycock, Adam, Renshaw, Richard, George, John P., Rajagopal, E. N.

“…The Indian Monsoon Data Assimilation and Analysis (IMDAA) is a regional high‐resolution atmospheric reanalysis over the Indian subcontinent. This regional…”
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Assimilation of aircraft observations over the Indian monsoon region: Investigation of the effects of COVID‐19 on a reanalysis by Rani, S. Indira, Jangid, Buddhi Prakash, Francis, Timmy, Sharma, Priti, George, Gibies, Kumar, Sumit, Thota, Mohan S., George, John P., Nath, Sankar, Das Gupta, Munmun, Mitra, Ashis Kumar

“…Since March 2020, the COVID‐19 pandemic has significantly reduced the availability of global aircraft‐based observations (ABOs), which has been restored later…”
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Assimilation of individual components of radiosonde winds: An investigation to assess the impact of single-component winds from space-borne measurements on NWP by Rani, S Indira, Sharma, Priti, George, John P, Das Gupta, M

“…Wind observations are critical for the better atmospheric analysis for Numerical Weather Prediction (NWP), particularly over the tropics. High-resolution…”
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Role of Space-Borne Sea Surface Winds on the Simulation of Tropical Cyclones Over the Indian Seas by Bushair, M. T., Rani, S. Indira, George, Gibies, Kumar, Sushant, Kumar, Sumit, George, John. P.

“…The impact of space-based sea surface winds on the simulation of tropical cyclones that formed over two distinct basins of the northern Indian Ocean during…”
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Evaluation of the benefits of assimilation of Meteosat-8 observations in an NWP system over the Indian Ocean region by Bushair, M. T., Rani, S. Indira, Jangid, Buddhi Prakash, Sharma, Priti, Kumar, Sumit, George, John. P., Das Gupta, M.

“…This paper describes the impact of direct assimilation of Indian Ocean Data Coverage (IODC) Meteosat-8 SEVIRI Clear Sky Brightness Temperatures (CSBTs) and the…”
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Improved skill of NCMRWF Unified Model (NCUM-G) in forecasting tropical cyclones over NIO during 2015–2019 by Kumar, Sushant, Dube, Anumeha, Kumar, Sumit, Rani, S Indira, Sharma, Kuldeep, Karunasagar, S, Mohandas, Saji, Ashrit, Raghavendra, George, John P, Mitra, Ashis K

“…Operational forecasting of tropical cyclone (TC) track and intensity in the India Meteorological Department (IMD) relies more and more on the numerical weather…”
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Intercomparison of Air-Sea Interface Fluxes over the Yellow Sea and Korea Strait: Impact of Tsushima Warm Current by Subrahamanyam, D. Bala, Ramachandran, Radhika, Rani, S. Indira, Kunhikrishnan, P. K, Kumar, B. Prasad

“…Surface-layer meteorological observations obtained from oceanic buoys over the Korean Strait and the Yellow Sea are used to estimate surface-layer turbulent…”
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Air-sea interaction processes over the east-asian marginal seas surrounding the Korean peninsula by BALA SUBRAHAMANYAM, D, RAMACHANDRAN, Radhika, INDIRA RANI, S, PRASAD KUMAR, B

“…In this article, we describe the seasonal variation of air-sea interface fluxes of heat, momentum and moisture over the East Asian Marginal Seas (EAMS)…”
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Assimilation of INSAT-3D imager water vapour clear sky brightness temperature in the NCMRWF’s assimilation and forecast system by Rani, S Indira, Taylor, Ruth, Sharma, Priti, Bushair, M T, Jangid, Buddhi Prakash, George, John P, Rajagopal, E N

“…This paper describes the direct assimilation of water vapour (WV) clear sky brightness temperatures (CSBTs) from the INSAT-3D imager in the National Centre for…”
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