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 …

The NCAR GPS Dropwindsonde and its impact on hurricane operations and research

SD Aberson, JA Zhang, J Zawislak… - Bulletin of the …, 2023 - journals.ametsoc.org
The global positioning system dropwindsonde has provided thousands of high-resolution
kinematic and thermodynamic soundings in and around tropical cyclones (TCs) since 1997 …

Lifetime performance of the operational hurricane weather research and forecasting model (HWRF) for north Atlantic tropical cyclones

GJ Alaka Jr, JA Sippel, Z Zhang, HS Kim… - Bulletin of the …, 2024 - journals.ametsoc.org
Abstract The Hurricane Weather Research and Forecasting Model (HWRF) was the flagship
hurricane model at NOAA's National Centers for Environmental Prediction for 16 years and a …

[HTML][HTML] Recent advancements in aircraft and in situ observations of tropical cyclones

HM Holbach, O Bousquet, L Bucci, P Chang… - … Cyclone Research and …, 2023 - Elsevier
Observations of tropical cyclones (TC) from aircraft and in situ platforms provide critical and
unique information for analyzing and forecasting TC intensity, structure, track, and their …

Evaluating the impacts of COSMIC-2 GNSS RO bending angle assimilation on Atlantic hurricane forecasts using the HWRF model

WJ Miller, Y Chen, SP Ho, X Shao - Monthly Weather Review, 2023 - journals.ametsoc.org
This study evaluates the impact of assimilating Global Navigation Satellite System (GNSS)
radio occultation (RO) bending angles from Formosa Satellite Mission-7/Constellation …

Impact of TROPICS radiances on tropical cyclone prediction in an OSSE

HW Christophersen, BA Dahl, JP Dunion… - Monthly Weather …, 2021 - journals.ametsoc.org
As part of the NASA Earth Venture-Instrument program, the Time-Resolved Observations of
Precipitation structure and storm Intensity with a Constellation of Smallsats (TROPICS) …

A systematic assessment of the overall dropsonde impact during the 2017–20 hurricane seasons using the basin-scale HWRF

SD Ditchek, JA Sippel, GJ Alaka Jr… - Weather and …, 2023 - journals.ametsoc.org
This study comprehensively assesses the overall impact of dropsondes on tropical cyclone
(TC) forecasts. We compare two experiments to quantify dropsonde impact: one that …

A study on assimilation of CYGNSS wind speed data for tropical convection during 2018 January MJO

X Li, JR Mecikalski, TJ Lang - Remote Sensing, 2020 - mdpi.com
The National Aeronautics and Space Administration (NASA) Cyclone Global Navigation
Satellite System (CYGNSS) mission was launched in December 2016. CYGNSS provides …

A case study of evaluating the GRAPES_Meso V5. 0 forecasting performance utilizing observations from South China Sea Experiment 2020 of the “Petrel Project”

Z Ma, W Han, C Zhao, X Zhang, Y Yang, H Wang… - Atmospheric …, 2022 - Elsevier
The evaluations of numerical weather prediction (NWP) models are pivotal for their
development. However, there is a big challenge to carry out over oceans because of the …

[HTML][HTML] Tropical cyclone data assimilation with Coyote uncrewed aircraft system observations, very frequent cycling, and a new online quality control technique

A Aksoy, JJ Cione, BA Dahl… - Monthly Weather …, 2022 - journals.ametsoc.org
A unique dataset obtained from the Coyote small uncrewed aircraft system (sUAS) in the
inner-core boundary layer of Hurricane Maria (2017) is assimilated using NOAA's Hurricane …