Observatory for Air-Sea Interaction Studies

Led by Christopher Zappa , the Observatory for Air-Sea Interaction Studies (OASIS) conducts research in a variety of fields focused on the oceanic and atmospheric boundary layers. These include wave dynamics and wave breaking, air-sea CO2 gas exchange, non-satellite remote sensing and boundary-layer processes. Affiliated with the Lamont-Doherty Earth Observatory (LDEO) and Columbia University, OASIS is involved in joint projects with the Polar Geophysics Group of LDEO, Yale University, the University of Heidelberg, the University of Connecticut, and the University of New South Wales and participated in various large multi-institution projects such as CBLAST-Low, GasEx, VOCALs, RaDyO, DYNAMO.
The group develops and deploys instruments including infrared, multispectral, and polarimetric cameras on different fixed and mobile platforms such as ships, aircrafts, buoys. The study areas range from laboratory wind-wave tanks, Biosphere2, to local rivers and estuaries, to shelf seas and polynyas, to open ocean from the poles to the equator.

SOLAS Cruise Peru-As part of the German contribution to the air-sea gas fluxes at eastern boundary upwelling and oxygen minimum zones systems initiative of International Surface Ocean-Lower Atmosphere Study, we participated in the comprehensive measurement campaign in the upwelling region off Peru. Not only focused on the ocean/atmosphere gas exchange, but also on the ocean biogeochemistry, atmospheric gas and aerosol fluxes as well as atmospheric and oceanographic processes, the cruise will help us understand the role of air-sea exchange of oceanic trace gases in coastal upwelling regions play in climate, local radiative balance, and biogeochemical processes.

Luminy Marseille- In colaboration with two PhD candidates from the University of Heidelberg, we conducted a 2 week long experiment in the wind-wave wind-wave tank of IRPHE (Marseille – Luminy) and tested amongst others the Nortek Vectrino II profiling Velocimeter.