Recent advancements for tropical cyclone data assimilation
H Christophersen, J Sippel, A Aksoy… - Annals of the New …, 2022 - Wiley Online Library
In this review, data assimilation (DA) techniques used for tropical cyclones (TCs) are briefly
overviewed. The strength and weakness of variational methods, ensemble methods, hybrid …
overviewed. The strength and weakness of variational methods, ensemble methods, hybrid …
[HTML][HTML] Impacts of assimilating additional reconnaissance data on operational GFS tropical cyclone forecasts
JA Sippel, X Wu, SD Ditchek… - Weather and …, 2022 - journals.ametsoc.org
This study reviews the recent addition of dropwindsonde wind data near the tropical cyclone
(TC) center as well as the first-time addition of high-density, flight-level reconnaissance …
(TC) center as well as the first-time addition of high-density, flight-level reconnaissance …
[HTML][HTML] Accomplishments of NOAA's airborne hurricane field program and a broader future approach to forecast improvement
Since 2005, NOAA has conducted the annual Intensity Forecasting Experiment (IFEX), led
by scientists from the Hurricane Research Division at NOAA's Atlantic Oceanographic and …
by scientists from the Hurricane Research Division at NOAA's Atlantic Oceanographic and …
[HTML][HTML] Important factors in the tracking of tropical cyclones in operational models
T Marchok - Journal of Applied Meteorology and Climatology, 2021 - journals.ametsoc.org
Multiple configurations of the Geophysical Fluid Dynamics Laboratory vortex tracker are
tested to determine a setup that produces the best representation of a model forecast …
tested to determine a setup that produces the best representation of a model forecast …
[HTML][HTML] Realistic tropical cyclone wind and pressure fields can be reconstructed from sparse data using deep learning
Tropical cyclones are responsible for large-scale loss of life and property,,–, motivating
accurate risk assessment and forecasting. These objectives require accurate reconstructions …
accurate risk assessment and forecasting. These objectives require accurate reconstructions …
Assimilation of Clear-sky FY-4A AGRI radiances within the WRFDA system for the prediction of a landfalling Typhoon Hagupit (2020)
The capability of assimilating Advanced Geostationary Radiance Imager (AGRI) radiances
of FengYun-4A (FY-4A) satellite is realized in the framework of the Weather Research and …
of FengYun-4A (FY-4A) satellite is realized in the framework of the Weather Research and …
A comparison of the impacts of inner-core, in-vortex, and environmental dropsondes on tropical cyclone forecasts during the 2017–20 hurricane seasons
SD Ditchek, JA Sippel - Weather and Forecasting, 2023 - journals.ametsoc.org
This study conducts the first large-sample comparison of the impact of dropsondes in the
tropical cyclone (TC) inner core, vortex, and environment on NWP-model TC forecasts. We …
tropical cyclone (TC) inner core, vortex, and environment on NWP-model TC forecasts. We …
The characterization and impact of Aeolus wind profile observations in NOAA's regional tropical cyclone model (HWRF)
PJ Marinescu, L Cucurull, K Apodaca… - Quarterly Journal of …, 2022 - Wiley Online Library
Observation system experiments (OSEs) are conducted to assess the potential impacts of
horizontal line‐of‐sight wind profile observations from the Aeolus satellite on tropical …
horizontal line‐of‐sight wind profile observations from the Aeolus satellite on tropical …
[HTML][HTML] Using a cost-effective approach to increase background ensemble member size within the GSI-based EnVar system for improved radar analyses and …
A valid time shifting (VTS) method is explored for the GSI-based ensemble variational
(EnVar) system modified to directly assimilate radar reflectivity at convective scales. VTS is a …
(EnVar) system modified to directly assimilate radar reflectivity at convective scales. VTS is a …
[HTML][HTML] The evaluation of real-time Hurricane Analysis and Forecast System (HAFS) Stand-Alone Regional (SAR) model performance for the 2019 Atlantic hurricane …
J Dong, B Liu, Z Zhang, W Wang, A Mehra… - Atmosphere, 2020 - mdpi.com
The next generation Hurricane Analysis and Forecast System (HAFS) has been developed
recently in the National Oceanic and Atmospheric Administration (NOAA) to accelerate the …
recently in the National Oceanic and Atmospheric Administration (NOAA) to accelerate the …