Results 11 to 20 of about 13,836,528 (157)

On the growth of intensity forecast errors in the operational hurricane weather research and forecasting (HWRF) model

Quarterly Journal of the Royal Meteorological Society, 2018
This study examines the growth of tropical cyclone (TC) intensity forecast errors and related intensity predictability for the NOAA operational Hurricane Weather Research and Forecasting (HWRF) model. Using operational intensity forecasts during the 2012 to 2016 seasons, two conditions for a limited range of TC intensity predictability are demonstrated,
Chanh Kieu, Sundararaman Gopalakrishnan, Kushal Keshavamurthy Raviprakash   +2 more
exaly   +4 more sources

Real-Time Forecasts of Typhoon Rapid Intensification in The North Western Pacific Basin with the NCEP Operational HWRF Model

Tropical Cyclone Research and Review, 2014
: This study presents the real-time performance of the United States (US) National Centers for Environmental Prediction (NCEP) operational Hurricane Weather Research and Forecast (HWRF) model in predicting rapid intensification (RI) of typhoons in the ...
Vijay Tallapragada, Chanh Kieu
doaj   +2 more sources

A modified vertical eddy diffusivity parameterization in the HWRF model based on large eddy simulations and its impact on the prediction of two landfalling hurricanes

Frontiers in Earth Science, 2023
Vertical eddy diffusivity (VED) in the planetary boundary layer (PBL) has a significant impact on forecasts of tropical cyclone (TC) structure and intensity.
Xin Li, Zhaoxia Pu, Jun A. Zhang, Jun A. Zhang, Zhan Zhang   +4 more
doaj   +2 more sources

On the Onset Timing of Tropical Cyclone Rapid Intensification in the HWRF Model: Role of Upper Atmospheric Evolution

Tropical Cyclone Research and Review
The Hurricane Weather Research and Forecasting (HWRF) model has shown significant advancements in predicting tropical cyclone (TC) intensity and intensity changes over the past decades.
N.D. Manikanta, Sudheer Joseph, A.K. Das, Akhil Srivastava, Arun Sharma, T.M. Balakrishnan Nair, M. Mohapatra, M. Ravichandran, C.V. Naidu   +8 more
doaj   +2 more sources

The Indian Ocean–Land–Atmosphere (IOLA)‐Coupled Mesoscale Prediction Framework for Inland Severe Weather and Coastal Hazards Forecasting

Meteorological Applications
Over the last decade, tropical cyclone (TC) track and intensity predictions have improved by nearly 50% in the Atlantic and Northern Indian Ocean, driven by advancements in ocean‐coupled numerical models, data assimilation techniques, and an expanding ...
Sundararaman Gopalakrishnan, Krishna K. Osuri, Dev Niyogi, Sudheer Joseph, Shyama Mohanty, Yerni Srinivas Nekkali, Sasanka Talukdar, N. D. Manikanta, Imamah Ali, Ghassan Alaka, Ananda Das, Raghu Nadimpalli, Akhil Srivastava, Srinivas Kumar Tummala, T. M. Balakrishnan Nair, M. Mohapatra, V. S. Prasad, A. Suryachandra Rao, U. C. Mohanty, R. Krishnan, Frank Marks, M. Ravichandran   +21 more
doaj   +2 more sources

On the Forecast Errors of Tropical Cyclone Intensity in HWRF Over the Western North Pacific

Geophysical Research Letters
Intensity forecast errors of tropical cyclones (TCs) over the western North Pacific are investigated using forecast records from the Hurricane Weather Research and Forecasting (HWRF) model.
Hao‐Yan Liu, Zhe‐Min Tan
doaj   +2 more sources

Understanding the Role of Antecedent Land Conditions on Rapid Intensity Changes in Landfalling Tropical Cyclones Over the Bay of Bengal

Meteorological Applications
Two tropical cyclones (TCs)—Phailin and Lehar over the Bay of Bengal (BoB) in 2013 exhibit contrasting rapid intensity changes near landfall, despite forming in similar synoptic environments. Phailin underwent a rapid intensification of ~70 knots between
Raghu Nadimpalli, Yerni Srinivas Nekkali, Krishna K. Osuri, M. Mohapatra, Dev Niyogi   +4 more
doaj   +2 more sources

Forecasting Tropical Cyclones in the Western North Pacific Basin Using the NCEP Operational HWRF Model: Model Upgrades and Evaluation of Real-Time Performance in 2013

Weather and Forecasting, 2016
AbstractThis study presents evaluation of real-time performance of the National Centers for Environmental Prediction (NCEP) operational Hurricane Weather Research and Forecast (HWRF) modeling system upgraded and implemented in 2013 in the western North Pacific basin (WPAC).
Banglin Zhang, Mingjing Tong, Chanh Kieu
exaly   +2 more sources

Evaluation of the Grell–Freitas Convective Scheme in the Hurricane Weather Research and Forecasting (HWRF) Model [PDF]

Weather and Forecasting, 2020
Abstract The Developmental Testbed Center (DTC) tested two convective parameterization schemes in the Hurricane Weather Research and Forecasting (HWRF) Model and compared them in terms of performance of forecasting tropical cyclones (TCs).
Georg Grell, James Frimel, Laurie Carson, Ligia Bernardet, Kathryn Newman, Evan Kalina, Evelyn Grell, Jun A. Zhang, Mrinal K. Biswas   +8 more
openaire   +1 more source

The Impact of Stochastic Physics-Based Hybrid GSI/EnKF Data Assimilation on Hurricane Forecasts Using EMC Operational Hurricane Modeling System

Atmosphere, 2020
The National Oceanic and Atmospheric Administration’s (NOAA) cloud-permitting high-resolution operational Hurricane Weather and Research Forecasting (HWRF) model includes the sophisticated hybrid grid-point statistical interpolation (GSI) and Ensemble ...
Zhan Zhang, Mingjing Tong, Jason A. Sippel, Avichal Mehra, Banglin Zhang, Keqin Wu, Bin Liu, Jili Dong, Zaizhong Ma, Henry Winterbottom, Weiguo Wang, Lin Zhu, Qingfu Liu, Hyun-Sook Kim, Biju Thomas, Dmitry Sheinin, Li Bi, Vijay Tallapragada   +17 more
doaj   +1 more source