The second field experiment of ROXSI was completed from September-November 2023 at Stanford University’s Hopkins Marine Station. The field experiment included lots of instruments in the water and affixed to rocks, called the Small-Scale Array, as well as shore-cameras and drone measurements. There were some warm days, some cold days, some windy days, some spooky days (Halloween), some big waves … Read More
ROXSI UAV hover of synchronized lidar and georectified images of wave propagating through rocky coast
As part of the ROXSI project, we are interested in how surface gravity waves propagate and dissipate through very shallow yet very rocky and rough regions. As part of this we are using a UAV with lidar and camera system to visualize the wave field in places that are challenging to sample in any other way. It took some work … Read More
All instruments back in the lab
After a busy month and a half, we have officially wrapped up the 2022 ROXSI field experiment! Our boat and shore crews did a superb job and recovered all of our moorings in just a few days. Since algae and kelp are more than happy to grow on our instruments, the first step back in the laboratory is to … Read More
ROXSI nowcast wave model performance
As we wrap up the field program for ROXSI 1, I wanted to revisit the nowcast model performance compared to one of the nearshore wave observations (Quick side note: instrument recovery was a spectacular effort from land and sea by everyone involved!). A reminder, the ROXSI nowcast takes bulk wave spectral characteristics from a real-time offshore NDBC buoy (40 km … Read More
July 17th: More measuring waves from sky at China Rock
Over the past two weeks the SIO group has also been doing UAS flights with lidar but at China Rock. See Matt’s post from July 16th at Asilomar. Similar to the Oregon State group, our strategy has been principally to hover in space for ~12 minutes usually over an instrument – see the China Rock instrument map below. An example … Read More