After a 13-month delay to the start of science operations due to COVID-19, the Submesoscale Ocean Dynamics and Vertical Transport Experiment (S-MODE) investigation has officially started collecting data with a short field campaign that began on May 3. This campaign features flights based at the NASA Armstrong Flight Research Center (AFRC) main campus in Edwards, CA on the AFRC B200, a deployment of instrumented ocean Wave Gliders from the Woods Hole Oceanographic Institution (WHOI) and the Scripps Institution of Oceanography (SIO) that look at currents at depth and other environmental conditions, and a Twin Otter International (TOI) aircraft. The B200 is equipped with the JPL Doppler Scatterometry instrument (DopplerScatt) that measures ocean surface velocity and wind, and UCLA’s Multiscale Observing System of the Ocean Surface (MOSES) that measures sea surface temperature (SST). The TOI Twin Otter carries the SIO Modular Aerial Sensing System (MASS), which measures sea surface topography, SST, ocean color, and ocean surface waves.
The week of May 3 marked a number of long-awaited firsts for S-MODE. On Monday, the first flight on the B200 with the combined payload of the JPL DopplerScatt and UCLA MOSES instruments flew lines between Catalina and San Clemente islands — an area of strong ocean currents. The research activities on Friday, centered at Office of Naval Research experiment site about 350 km offshore of Los Angeles, allowed the science team to conduct joint operations for the first time among the four instruments listed above. This combination of instruments represents some of the key measurements that will be made during future S-MODE campaigns. Demonstrating successful joint operations among these platforms is a key milestone for the S-MODE investigation, and the science team is very pleased with the resulting data so far.
The current experiment will continue until May 18 in preparation for the S-MODE October Pilot campaign, whose flight operations will be based at NASA Ames Research Center.
S-MODE is supported by the Earth System Science Pathfinder (ESSP) Program Office at NASA Langley Research Center through the Earth Venture Suborbital-3 program and managed by the Earth Science Project Office (ESPO) at NASA Ames Research Center.
Picture: Pilots Jim Less (NASA AFRC) and Mike Stewart (NASA ARC) and instrument investigators Jeroen Molemaker (UCLA) and Federica Polverari (JPL) before takeoff of RF4 on May 7, 2021. (Photo J. Piotrowski, AFRC)
