A52A:
Understanding Air-Sea Coupling in Tropical Cyclones for Improving Model Intensity Forecasts I
A52A:
Understanding Air-Sea Coupling in Tropical Cyclones for Improving Model Intensity Forecasts I
Understanding Air-Sea Coupling in Tropical Cyclones for Improving Model Intensity Forecasts I
Session ID#: 11376
Session Description:
Improvements in tropical cyclone intensity forecasts produced by coupled prediction models have lagged behind improvements in track forecasts. Accurate intensity prediction requires that coupled models correctly simulate the evolution of air-sea heat and momentum fluxes directly beneath storms. Limited evaluation performed to date demonstrates that existing coupled prediction models contain significant errors and biases in simulated air-sea fluxes, and in the responses of the upper-ocean and the atmospheric planetary boundary layer to these fluxes, that can degrade the quality of intensity forecasts. Papers are solicited that describe the supporting science and methods required to evaluate and improve the quality of coupled TC intensity forecasts, particularly with regards to improving the representation of key ocean-wave-atmosphere physical processes within the models. Particular emphasis is placed on physical processes acting within the under-sampled inner-core region of storms. Scientific topics of interest include air-sea interface dynamics, upper-ocean dynamics, atmospheric planetary boundary layer dynamics, air-sea flux parameterization improvements, and methods to improve model initialization. Papers describing the observational requirements to achieve these goals, with respect to both the optimal use of existing observations and the design of future observing programs, are particularly encouraged.
Primary Chair: George R Halliwell Jr, NOAA Miami, Miami, FL, United States
Chairs: Hyun-Sook Kim, NOAA/NCWCP, EMC, College Park, MD, United States and Vijay Tallapragada, National Centers For Environmental Prediction-Environmental Modeling Center, College Park, MD, United States
Moderators: Hyun-Sook Kim, IMSG at EMC/NCEP/NOAA, College Park, MD, United States and George R Halliwell Jr, NOAA Miami, Miami, FL, United States
Student Paper Review Liaison: George R Halliwell Jr, NOAA Miami, Miami, FL, United States
Index Terms:
4255 Numerical modeling [OCEANOGRAPHY: GENERAL]
4262 Ocean observing systems [OCEANOGRAPHY: GENERAL]
4504 Air/sea interactions [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
Co-Sponsor(s):
- OD - Ocean Observing and Data Management
- PO - Physical Oceanography/Ocean Circulation
- TE - Tropical and Equatorial Environments
- TP - Turbulent Processes
Abstracts Submitted to this Session:
Assessment of Surface Drag Coefficient Parametrizations based on Observation and WRF Model Simulation (88433)
Upper-Ocean Temperature Observations Obtained during Tasked Hurricane Reconnaissance Missions: A Review of Impacts on Air-Sea Coupled Hurricane Model Predictions (91969)
OSSE Assessment of Ocean Observing System Enhancements to Improve Coupled Tropical Cyclone Intensity Prediction (87134)
Revisiting Sea State Dependent Surface Fluxes Parameterisations in a Fully Coupled Forecast System with Emphasis on Tropical Cyclone (92696)
Predictability of Tropical Cyclone Intensity in Coupled Atmosphere-Wave-Ocean Model Stochastic Ensembles (93858)
Impacts of Ocean Coupling on HWRF Forecasts for Tropical Cyclones over the Western North Pacific Basin in 2015 (90095)
See more of: Air-sea Interactions and Upper Ocean Processes