Good progress over the weekend!
RU22 continues its effective steam across the shelf. The glider makes good progress to the way-point to the south, and is being supported by shelf-wide circulation which is to the south as seen in the CODAR imargey. The glider should reach the shelf edge by the beginning of the week. This is positive given the large number of optical sensors on the glider which has the potential to drain the batteries quickly. Discussion over the weekend has been focused on which glider sensors we turn off first to ensure enough power to make the journey.
The hydrographic structure the glider has encountered shows nearshore low salinity water and isothermal water properties. The backscatter showed enhanced magnitudes during the storm. After the storm optical backscattter dropped and chlorophyll was also low. No clear features in the physical data suggest a unique water mass was associated with the low chlorophyll water. After a few days the chlorophyll has increased. This could be consistent with a post-storm phytoplankton bloom as the water column stabilized. More to research in the coming days.
The enhanced chlorophyll is also seen in the ocean color imagery. The phytoplankton patterns are unique showing major coastal blooms and a second bloom present at the Grand Banks. The water is still cold water across the Mid-Atlantic Bight. The chlorophyll measured by satellite and the glider show good agreement.