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Exploring High-Resolution Water Vapor and Aerosol Dynamics in Tropical Cyclones During NAMMA

This study investigates high-resolution water vapor and aerosol distributions influencing tropical cyclone development, utilizing LASE measurements during the NAMMA field experiment. It covers intricacies like water vapor profiles during day and night, surface to tropopause dynamics, and aerosol/cloud profiles with high accuracy. By examining the relationship between synoptic-scale SAL properties and moisture fields, the research aims to enhance forecasting of African Easterly Waves, tropical cyclones, and hurricanes. The study also evaluates satellite measurements’ ability to capture vital atmospheric features.

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Exploring High-Resolution Water Vapor and Aerosol Dynamics in Tropical Cyclones During NAMMA

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  1. Investigation of High Resolution Water Vapor and Aerosol Distributions in Tropical Cyclone Development During the NAMMA Field Experiment Edward Browell, LaRC (PI); Syed Ismail, LaRC (Co-PI); Richard Ferrare, LaRC (Co-I); T. N. Krishnamurti, FSU (Co-I); Jason Dunion, NOAA/U Miami (Co-I) • LASE Measurements • Water vapor profiles • - daytime and nighttime • - surface to tropopause • - 330 m vert. & 15 km hor. • - accuracy (6% or 0.01 g/kg) • Aerosol/cloud profiles • 30 m vert. & 200 m hor. • LASE Retrievals • Relative humidity profiles • Aerosol backscatter/extinction profiles • Precipitable Water Vapor • qe, qv • NAMMA Investigations • Link GOES SAL imagery w LASE mea. & interaction w AEWs/TCs • Invest. SAL properties w simul. air, space, & gnd measurements • Sample various SAL regions (e.g., leading edge and dust/SAL source) • Study impact of synoptic-scale SAL & moisture fields on forecasting AEW, TC, & hurricane development • Sample AEWs/TCs on consecutive days to examine impact of SAL and humidity fields on their development • Evaluate ability of satellite meas. to represent SAL moisture, aerosols, clouds (e.g. AIRS, CALIPSO) Recent Field Experiments: CAMEX-3 & 4, IHOP References: Kamineni et al., GRL (2003); Kamineni et al., JAS (2006); Wakimoto et al., MWR (2006)

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