Quantile map** bias correction methods to IMDAA reanalysis for calibrating NCMRWF unified model operational forecasts

K Niranjan Kumar, MS Thota, R Ashrit… - Hydrological …, 2022 - Taylor & Francis
This study focuses on assessing different quantile map** (QM) bias correction
approaches based on empirical and parametric methods to bias-correct the Indian Monsoon …

Systematic daytime increases in atmospheric biases linked to dry soils in irrigated areas in Indian operational forecasts

EJ Barton, CM Taylor, AK Mitra… - Atmospheric Science …, 2023 - Wiley Online Library
The representation of land–atmosphere coupling in forecast models can significantly impact
weather prediction. A previous case study in Northern India incorporating both model and …

Atmospheric kinetic energy spectra from global and regional NCMRWF unified modelling system

K Niranjan Kumar, R Ashrit… - Quarterly Journal of …, 2023 - Wiley Online Library
Characteristics of the atmospheric kinetic energy (KE) spectrum follow a distinct power‐law
dependence in the synoptic (k− 3) and mesoscales (k− 5/3), where k is the horizontal wave …

Spatial verification of ensemble rainfall forecasts over India

A Dube, S Karunasagar, R Ashrit, AK Mitra - Atmospheric Research, 2022 - Elsevier
Abstract Increased resolution of Numerical Weather Prediction (NWP) models can lead to
improved prediction of heavy rains; however, the forecasts often suffer from location …

Wind speed and power forecasting: Evaluating NCUM-G model performance

P Singh, S Kumar, R Ashrit, S Rai - Journal of Earth System Science, 2025 - Springer
In response to the growing emphasis on transitioning to clean, sustainable energy and the
increasing global energy demand, the utilization of renewable resources has notably …

[PDF][PDF] ORT

P Singh, R Ashrit, S Kumar - 2024 - ncmrwf.gov.in
The purpose of a Decision Support System (DSS) for nuclear emergencies is to furnish
emergency managers with thorough and timely information regarding situations arising from …

SAtellite-based marine process understanding, development, research and applications for blue economy (SAMUDRA): a technology demonstration program in the …

R Sharma, N Agarwal, SVVA Kumar, AD Rao… - Journal of the Indian …, 2023 - Springer
Abstract SAtellite-based Marine Process Understanding, Development, Research and
Applications (SAMUDRA) for blue economy, a technology development program of the …

Heat Waves over India during Mar-May 2022: An object-based approach to Forecasting and Verification

H Singh, A Dube, R Ashrit, PK Srivast - 2023 - researchsquare.com
Heatwaves are one of the most dangerous natural hazards in the world. Higher daily peak
temperatures, duration, intensity and frequency of heatwaves are increasing globally due to …

Assimilation of aircraft observations over the Indian monsoon region: Investigation of the effects of COVID‐19 on a reanalysis

SI Rani, BP Jangid, T Francis, P Sharma… - Quarterly Journal of …, 2023 - Wiley Online Library
Abstract Since March 2020, the COVID‐19 pandemic has significantly reduced the
availability of global aircraft‐based observations (ABOs), which has been restored later in …

Use and impact of satellite-derived SST data in a Global Ocean Assimilation System over the Tropical Indian Ocean

IM Momin, AK Mitra, J Waters, D Lea, MJ Martin… - Journal of the Indian …, 2023 - Springer
The ocean analysis is crucial for monitoring and predicting the ocean and also provides an
initial condition to coupled atmosphere–ocean model. Due to the lack of in-situ observations …