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Scientific Projects


Improving High Resolution Offshore Wind Resource Assessments and Forecasts using Observations in the MA/RI Lease Areas

The 3rd Wind Forecast Improvement Project (WFIP3), sponsored by the U.S. Department of Energy, seeks to improve our understanding of the physics of the atmosphere and ocean that dictate the structure and variability of the wind resource within the Marine Atmospheric Boundary Layer (MABL). Part of my contribution to this project will be on improving the physical understanding of mesoscale meteorological and oceanographic processes that directly affect wind resource characterization in the U.S. East Coast offshore environment.


Wind-waves coupling response during atmospheric cold fronts

Atmospheric cold fronts have elongated along-frontal scales of many 1000s km, but much shorter cross-frontal scales of only 10-100s km. They are accompanied by gale-force surface winds (15-30 m/s) and mark abrupt shifts in the direction between the pre-frontal and post-frontal winds. At the sea surface, the strong winds generate short-length scale coupled wind-waves of 0.1-10s cm, while the veering of the wind leads to a large area of growing wind-waves that become misaligned with local winds due to the rapid translation of the fronts.


Improving coupled atmosphere-ocean processes in NU-WRF for the simulation of coast-threatening extratropical cyclones in the northeastern U.S.

This project will develop a better understanding of the physical processes governing the structure and evolution of the marine atmospheric boundary layer (MABL) in the Northeastern US and the New England shelf regions. Capitalizing on the detailed in situ and remotely sensed observations of coupled boundary layer variables and air-sea fluxes uniquely available in the region, this project will validate and improve the MABL processes in the NASA’s Unified WRF (NU-WRF) modeling system to better represent and forecast extreme coastal storms. By including the full coupling of the regional ocean modeling system (ROMS) and the WaveWatchIII (WW3) to the NU-WRF to exploit the critical wave-ocean coupling effect on the atmosphere, the project will also enable, for the first time, NU-WRF-based coupled hindcast and forecast capabilities of extreme weather events with reduced uncertainty.


Mixed Sea conditions in the Northwestern Tropical Atlantic

In winter, the Northwest Tropical Atlantic Ocean can be characterized by various wave age-based interactions among ocean current, surface wind and surface waves, which are critical for accurately describing surface wind stress. In this work, coupled wave-ocean-atmosphere model simulations are conducted using two different wave roughness parameterizations within COARE3.5, including one that relies solely on wind speed and another that uses wave age and wave slope as inputs.


HYdrological cycle in the Mediterranean EXperiment (HyMeX)

The hydrological cycle in the Mediterranean is a key environmental and socio-economic question for a wide region encompassing southern Europe, northern Africa and the Middle East. The lack of readiness and mitigation strategies could result in critical situations, in particular in case of extreme events and inadequate evaluation of climate change impacts. To face environmental challenges, progress has to be made in the understanding of the Mediterranean climate. HyMeX aims at a better understanding and quantification of the hydrological cycle and related processes in the Mediterranean, with emphasis on high-impact weather events, inter-annual to decadal variability of the Mediterranean coupled system, and associated trends in the context of global change.