Results 41 to 50 of about 327 (141)

Role of eyewall and rainband eddy forcing in tropical cyclone intensification [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
While turbulence is commonly regarded as a flow feature pertaining to the planetary boundary layer (PBL), intense turbulent mixing generated by cloud processes also exists above the PBL in the eyewall and rainbands of a tropical cyclone (TC).
P. Zhu   +8 more
doaj   +1 more source

Performance of Ocean Simulations in the Coupled HWRF–HYCOM Model

open access: yesJournal of Atmospheric and Oceanic Technology, 2014
Abstract This paper introduces a next-generation operational Hurricane Weather Research and Forecasting (HWRF) system that was developed at the U.S. National Centers for Environmental Prediction. The new system, HWRF–Hybrid Coordinate Ocean Model (HYCOM), retains the same atmospheric component of operational HWRF, but it replaces the ...
Jamese Sims   +7 more
openaire   +1 more source

Understanding the Role of Mean and Eddy Momentum Transport in the Rapid Intensification of Hurricane Irma (2017) and Hurricane Michael (2018)

open access: yesAtmosphere, 2021
The prediction of rapid intensification (RI) in tropical cyclones (TCs) is a challenging problem. In this study, the RI process and factors contributing to it are compared for two TCs: an axis-symmetric case (Hurricane Irma, 2017) and an asymmetric case (
Alrick Green   +3 more
doaj   +1 more source

Sensitivity of hurricane forecasts to cumulus parameterizations in the HWRF model

open access: yesGeophysical 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   +2 more
openaire   +1 more source

Track Uncertainty in High-Resolution HWRF Ensemble Forecasts of Hurricane Joaquin [PDF]

open access: yesWeather and Forecasting, 2019
Abstract Hurricane Joaquin (2015) was characterized by high track forecast uncertainty when it approached the Bahamas from 29 September 2015 to 1 October 2015, with 5-day track predictions ranging from landfall in the United States to east of Bermuda. The source of large track spread in Joaquin forecasts is investigated using an ensemble
Xuejin Zhang   +5 more
openaire   +1 more source

The Evaluation of Real-Time Hurricane Analysis and Forecast System (HAFS) Stand-Alone Regional (SAR) Model Performance for the 2019 Atlantic Hurricane Season

open access: yesAtmosphere, 2020
The next generation Hurricane Analysis and Forecast System (HAFS) has been developed recently in the National Oceanic and Atmospheric Administration (NOAA) to accelerate the improvement of tropical cyclone (TC) forecasts within the Unified Forecast ...
Jili Dong   +13 more
doaj   +1 more source

Sensitivity of the Wave Field to High Time-Space Resolution Winds during a Tropical Cyclone

open access: yesOceans, 2023
The impact of the high space-temporal variability of the wind field during the moderate and intense storm stages of a tropical cyclone on the wave field as computed by the numerical model WaveWatch III is investigated in this work.
Laura Pérez-Sampablo   +4 more
doaj   +1 more source

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

open access: yesWeather 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   +8 more
openaire   +1 more source

Investigation on the Intensification of Supertyphoon Yutu (2018) Based on Symmetric Vortex Dynamics Using the Sawyer–Eliassen Equation

open access: yesAtmosphere, 2023
This study used the revised Sawyer–Eliassen (SE) equation, taking the relaxed thermal wind balance into account, to chart the development of Supertyphoon Yutu (2018) based on symmetric vortex dynamics.
Thi-Chinh Nguyen, Ching-Yuang Huang
doaj   +1 more source

Evaluation of Storm Structure from the Operational HWRF during 2012 Implementation

open access: yesMonthly Weather Review, 2014
Abstract In this work, a high-resolution triple-nested implementation of the National Centers for Environmental Prediction (NCEP) operational Hurricane Weather Research and Forecasting Model (HWRF) for the 2012 hurricane season is evaluated.
In-Hyuk Kwon   +6 more
openaire   +1 more source

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