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 …

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 …

Four‐dimensional wind fields from geostationary hyperspectral infrared sounder radiance measurements with high temporal resolution

Z Ma, J Li, W Han, Z Li, Q Zeng… - Geophysical …, 2021 - Wiley Online Library
Abstract Four‐dimensional (4D) wind fields were derived from radiance measurements of
the Geosynchronous Interferometric Infrared Sounder (GIIRS) onboard the FengYun‐4A …

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 …

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 …

Impact of assimilating high‐resolution atmospheric motion vectors on convective scale short‐term forecasts: 1. Observing System Simulation Experiment (OSSE)

J Zhao, J Gao, TA Jones, J Hu - Journal of Advances in …, 2021 - Wiley Online Library
This research investigates to what extent the high‐spatiotemporal‐resolution Atmospheric
Motion Vector (AMV) product derived from the new‐generation Geostationary Operational …

Global three‐dimensional water vapor feature‐tracking for horizontal winds using hyperspectral infrared sounder data from overlapped tracks of two satellites

A Ouyed, N Smith, X Zeng… - Geophysical …, 2023 - Wiley Online Library
The lack of measurements of three‐dimensional (3D) distribution of horizontal wind vectors
is a major challenge in atmospheric science. Here, we develop an algorithm to retrieve …

Stationary and transient asymmetric features in tropical cyclone eye with wavenumber-1 instability: Case study for Typhoon Haishen (2020) with atmospheric motion …

T Horinouchi, S Tsujino, M Hayashi… - Monthly Weather …, 2023 - journals.ametsoc.org
Dynamics of low-level flows in the eye of Typhoon Haishen (2020) in its late phase of
intensification are investigated with a special rapid-scan observation of the Himawari-8 …

Added-value of GEO-hyperspectral infrared radiances for local severe storm forecasts using the hybrid OSSE method

P Wang, Z Li, J Li, TJ Schmit - Advances in Atmospheric Sciences, 2021 - Springer
High spectral resolution (or hyperspectral) infrared (IR) sounders onboard low earth orbiting
satellites provide high vertical resolution atmospheric information for numerical weather …

Quantitative applications of weather satellite data for nowcasting: progress and challenges

J Li, J Zheng, B Li, M Min, Y Liu, CY Liu, Z Li… - Journal of …, 2024 - Springer
Monitoring and predicting highly localized weather events over a very short-term period,
typically ranging from minutes to a few hours, are very important for decision makers and …