A5079694870- Meteorological Phenomena and Simulations
- Climate variability and models
- Precipitation Measurement and Analysis
- Tropical and Extratropical Cyclones Research
- Ocean Waves and Remote Sensing
- Soil Moisture and Remote Sensing
- Atmospheric aerosols and clouds
- Cryospheric studies and observations
- Urban Heat Island Mitigation
- Plant Water Relations and Carbon Dynamics
- Combustion and Detonation Processes
- Hydrology and Drought Analysis
- Advanced Combustion Engine Technologies
- Fire effects on ecosystems
- Lightning and Electromagnetic Phenomena
- Climate change and permafrost
- Fire dynamics and safety research
- Hydrological Forecasting Using AI
- Wind and Air Flow Studies
- Fire Detection and Safety Systems
National Centre for Medium Range Weather Forecasting
2016-2025
Ministry of Earth Sciences
2018-2025
National Remote Sensing Centre
2020
The current study attempted to evaluate the impact of Soil Moisture (SM) initial conditions in a regional NWP system on simulation land falling cyclones over North Indian Ocean region. SM used this are created using simplified EKF based LDAS, which satellite derived information is also used. Here, two sets numerical experiments performed with different conditions. CTL (assimilated only surface level observations LDAS) and ASCAT plus CTL) understand NCUM-R system. atmospheric for both...
Abstract The southern Indian state of Kerala experienced exceptionally high rainfall during August 2018, which led to devastating floods in many parts the state. Prediction and early warning severe weather events vulnerable areas is crucial for disaster management agencies order protect life property. In recent years, state‐of‐the‐art numerical prediction (NWP) models have been used operationally predict over different spatial temporal scales. present paper, predictions based on National...
Abstract An effort was made to investigate the impact of assimilation microwave imager (MI) radiance observations on simulation tropical cyclones (TCs) using high‐resolution NCUM‐4DVAR method. Two numerical experiments were performed: a control experiment (CTL) (assimilated global telecommunication system [GTS] observations) and satellite (SAT) GTS plus [GMI] special sensor sounder [SSMIS] MI radiance). Assimilation is observed be capable depicting structure, track intensity storms. The...
In the northern region of India, hailstorms are common phenomena during winter. Four cases around Delhi (28° 58975′ N, 77° 22195′ E) winter have been analyzed in present study. It is mainly based on observations polarimetric radar variables (ZH and ZDR), as observed by C-band Doppler weather supplementary thermodynamic (CAPE, CIN, wind shear). The properties atmosphere hailstorm events studied using radiosonde observations. over study classified into two types with without large CAPE....
Static and dynamic quality index (QI) maps are generated as the base products of Doppler weather radar (DWR). The characterization reflectivity radial velocity in terms their QI is presented for operational DWRs India. A static composite has been using maximum method. These enable detection a low region advance Indian radars. above 0.5 all regions except blockage, high attenuation due to rain, beam broadening, whereas good values >0.8 ambiguous affected by nonmeteorological echoes. This...
The present study evaluates the impact of vortex initialization (VI) scheme within NCMRWF Global Unified model (NCUM-G) for prediction tropical cyclones (TCs) formed over Bay Bengal (BoB). For this purpose, two numerical experiments such as control simulation (CNTL) without using VI and VOTX in NCUM-G are performed by considering four landfalling TCs BoB basin during year 2016–17. results suggest that even though large synoptic systems, introduction has a positive on location, movement,...