We got some data!

I am so excited to report that we made our first temperature and pressure profile with the Apple Watch Ultra in Seattle's Lake Washington!

 

Pressure and temperature profile to 18 meters in Seattle's Lake Washington. The start of the profile is marked with a green circle and the end is marked with a red x.

Look at the well mixed surface later in the upper 10 m! And the thermocline between 10-15 meters! Deployed off an inflatable paddle board! All for less than $1000!

For comparison, here is data from a buoy deployed by King County about 3 miles to the south. Temperature is the black line and goes down to 43 meters. We are going to need a longer rope!

 

 https://green2.kingcounty.gov/lake-buoy/default.aspx 

There's still a lot to unpack about the performance of the sensors, but getting data to do it is the first step. Looking forward to next week when we will be joining NANOOS on their cruise to South Puget Sound and deploying the same watch on the shipboard CTD. We will get data down to 100 m and be able to do direct comparisons with pressure sensors on the 911 system.

 

Working deck of the Research Inflatable R/I Tini.