Investigation of High Resolution Water Vapor and Aerosol Distributions in Tropical Cyclone

Development During the NAMMA Field Experiment

Recent Field Experiments: CAMEX-3 & 4, IHOP

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

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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)

References: Kamineni et al., GRL (2003); Kamineni et al., JAS (2006); Wakimoto et al., MWR (2006)