Results 21 to 30 of about 13,836,528 (157)

The Influence of Radiation on the Prediction of Tropical Cyclone Intensification in a Forecast Model

Geophysical Research Letters, 2023
This study examines the influence of radiative heating on the prediction of tropical cyclone (TC) intensification in the Hurricane Weather Research and Forecasting (HWRF) model.
S.‐N. Wu, B. J. Soden, G. J. Alaka Jr.
doaj   +1 more source

A Hydrodynamical Atmosphere/Ocean Coupled Modeling System for Multiple Tropical Cyclones

Atmosphere, 2020
The goal of this paper is to introduce a new multi-storm atmosphere/ocean coupling scheme that was implemented and tested in the Basin-Scale Hurricane Weather Research and Forecasting (HWRF-B) model.
Ghassan J. Alaka, Dmitry Sheinin, Biju Thomas, Lew Gramer, Zhan Zhang, Bin Liu, Hyun-Sook Kim, Avichal Mehra   +7 more
doaj   +1 more source

Vortex Initialization in the NCEP Operational Hurricane Models

Atmosphere, 2020
This paper describes the vortex initialization (VI) currently used in NCEP operational hurricane models (HWRF and HMON, and possibly HAFS in the future).
Qingfu Liu, Xuejin Zhang, Mingjing Tong, Zhan Zhang, Bin Liu, Weiguo Wang, Lin Zhu, Banglin Zhang, Xiaolin Xu, Samuel Trahan, Ligia Bernardet, Avichal Mehra, Vijay Tallapragada   +12 more
doaj   +1 more source

Validation of Ensemble-Based Probabilistic Tropical Cyclone Intensity Change

Atmosphere, 2021
Although there has been substantial improvement to numerical weather prediction models, accurate predictions of tropical cyclone rapid intensification (RI) remain elusive.
Ryan D. Torn, Mark DeMaria
doaj   +1 more source

Steering flow and vortex tilt in basin-scale HWRF

, 2019
The purpose of this project is to evaluate layer mean wind (i.e., “steering flow”), tropical cyclone (TC) vortex tilt, and TC motion produced by the “Basin-Scale” Hurricane Weather Research and Forecasting (HWRF-B) Model.
Camposano, Samantha
core   +4 more sources

Evaluation of the Four-Dimensional Ensemble-Variational Hybrid Data Assimilation with Self-Consistent Regional Background Error Covariance for Improved Hurricane Intensity Forecasts

Atmosphere, 2020
The feasibility of a hurricane initialization framework based on the Gridpoint Statistical Interpolation (GSI)-based four-dimensional ensemble-variational (GSI-4DEnVar) hybrid data assimilation system for the Hurricane Weather Research and Forecasting ...
Shixuan Zhang, Zhaoxia Pu
doaj   +1 more source

2022 real-time Hurricane forecasts from an experimental version of the Hurricane analysis and forecast system (HAFSV0.3S)

Frontiers in Earth Science, 2023
During the 2022 hurricane season, real-time forecasts were conducted using an experimental version of the Hurricane Analysis and Forecast System (HAFS).
Andrew Hazelton, Andrew Hazelton, Ghassan J. Alaka, Lew Gramer, Lew Gramer, William Ramstrom, William Ramstrom, Sarah Ditchek, Sarah Ditchek, Xiaomin Chen, Bin Liu, Bin Liu, Zhan Zhang, Lin Zhu, Lin Zhu, Weiguo Wang, Weiguo Wang, Biju Thomas, Biju Thomas, JungHoon Shin, JungHoon Shin, Chuan-Kai Wang, Chuan-Kai Wang, Hyun-Sook Kim, Xuejin Zhang, Avichal Mehra, Frank Marks, Sundararaman Gopalakrishnan   +27 more
doaj   +1 more source

HWRF Based Ensemble Prediction System Using Perturbations from GEFS and Stochastic Convective Trigger Function

Tropical Cyclone Research and Review, 2014
: In this study, an ensemble prediction system (EPS) for the operational Hurricane Weather Research and Forecast (HWRF) model at the Environmental Modeling Center (EMC) of National Centers for Environmental Prediction (NCEP) is introduced and evaluated ...
Zhan Zhang, Vijay Tallapragada, Chanh Kieu, Samuel Trahan, Weiguo Wang   +4 more
doaj   +1 more source

A Review and Evaluation of Planetary Boundary Layer Parameterizations in Hurricane Weather Research and Forecasting Model Using Idealized Simulations and Observations

Atmosphere, 2020
This paper reviews the evolution of planetary boundary layer (PBL) parameterization schemes that have been used in the operational version of the Hurricane Weather Research and Forecasting (HWRF) model since 2011.
Jun A. Zhang, Evan A. Kalina, Mrinal K. Biswas, Robert F. Rogers, Ping Zhu, Frank D. Marks   +5 more
doaj   +1 more source

Sensitivity of hurricane forecasts to cumulus parameterizations in the HWRF model

Geophysical Research Letters, 2014
AbstractThe Developmental Testbed Center used the Hurricane Weather Research and Forecasting (HWRF) system to test the sensitivity of tropical cyclone track and intensity forecasts to different convective schemes. A control configuration that employed the HWRF Simplified Arakawa Scheme (SAS) was compared with the Kain‐Fritsch and Tiedtke schemes, as ...
Mrinal K. Biswas, Ligia Bernardet, Jimy Dudhia   +2 more
openaire   +1 more source