IMPROVED TROPICAL CYCLONE ANALYSES AND FORECASTS WITH NEW GENERATION SATELLITE ATMOSPHERIC MOTION VECTOR DATASETS
Abstract
Funds are provided to investigate whether high temporal (15-minute interval) and spatial resolution Atmospheric Motion Vectors (AMVs) can be utilized in the Navy regional model (COAMPS-TC) and upscaled to the Navy global model (NAVGEM). The PI has documented that the assimilation of AMVs in a three-dimensional wind analysis reproduced the structure of previous TCs. He will investigate utilizing this AMV-based analysis in a dynamic initialization technique to provide the initial conditions. This project will also explore whether improved 6-h NAVGEM forecasts will produce better initial conditions and lateral boundary conditions for the next regional model analysis based on the high frequency AMV datasets, and thus demonstrate the impact of an end-to-end cycling through the subsequent regional and global forecasts. A special focus will be on the rapid intensification stage of Hurricane Joaquin, which was not well forecast by current models. A more straight-forward and efficient Four Dimensional Data Assimilation technique will be used for assimilating the high temporal and spatial resolution AMVs in the COAMPS-TC Dynamic Initialization technique (acronym FCDI).
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 13, 2019
- Source ID
- N000141912465
Entities
People
- Russell Elsberry
Organizations
- Office of Naval Research
- Regents of the University of Colorado
- United States Navy