Wind-Driven Oceanic Shallow water wave ModesOceanic shallow water wave modes (e.g., Kelvin and Rossby waves) are important for regulating the thermodynamic characteristics of the upper ocean, which in turn impact MJO and ENSO cycles. Often these waves are initiated by anomalously strong and long lasting easterly and westerly wind events (WWEs). This project develops a suite of diagnostics for the NOAA Model Diagnostic Task Force that determine biases in ocean wave modes in climate models and the sources of those biases. This work is sponsored by NOAA MAPP.
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CYGNSS Observations of Latent heat flux-convection couplingSurface latent heat fluxes (LHFLXs) are important for initiating and maintaining convection on a variety of scales from diurnal mesoscale convective systems through intraseasonal MJO events. Novel measurements of oceanic near-surface wind speeds and latent heat flux (LHFLX) from NASA's Cyclone Global Navigation Satellite System (CYGNSS) are used to examine the importance of wind-induced LHFLX feedbacks to the MJO and to the diurnal cycle of convection in the far east Pacific and northern Australia. This work is sponsored by NASA CYGNSS.
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Cloud Attributes using Cloudsat observationsA CloudSat-based echo object (EO) database was developed during my graduate studies. The EO database was used to examine global cloud climatology and the evolution of cloud structure across the MJO. More recently, the EO database has been used to evaluate the evolution of clouds through shallow and deep convective discharge-recharge cycles. The database is available through Dryad (link).
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