1 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Satellite-Derived Tropical Cyclone Intensities and Structure Change (TCS-08 and ITOP)

To understand tropical cyclone (TC) structure and the time evolution from genesis to a mature storm while focusing on environmental conditions that impact rainband and inner core changes that are directly related to a TC’s intensity and resultant wind and rain fields. OBJECTIVES Develop accurate automated satellite-based techniques to estimate TC intensity and intensity changes under all conditions (e.g., 24 hr/day, any global location, and strengths ranging from tropical depression to Category 5). Create products that enable the TC community to monitor the three dimensional (3-D) TC environment (winds, moisture, and sea surface temperatures) and advance our ability to forecast TC intensity changes with a special emphasis on western Pacific (WPAC) typhoons. APPROACH Satellite sensors represent the only observing platform that can currently provide the geographic coverage, and spatial, spectral, and temporal sampling required to monitor TC parameters in a near real-time mode. This project will focus on developing new satellite-based tools that assist the TC community in understanding TC structure changes by incorporating coincident recon data sets that can verify the fidelity of the satellite product suite, especially in the data poor (recon) WPAC regio