Come learn about the CSIDE project and some of Dr. Feddersen & Dr. Giddings and their lab’s work as it pertains to coastal pollution transport at the Tijuana River National Estuarine Research Reserve (TRNERR) speaker series! The talk is Saturday 20 April, 2019 starting at 10am at the TRNERR reserve, for more information please see the TRNERR event information and flyer.
CSIDE graduate student Derek Grimes and co-PI Sarah Giddings attended and presented at the International Boundary & Water Commission Citizen’s Forum on 1 September 2016. Grimes showed preliminary results from the CSIDE project which was highlighted in the local news.
Members of the UCSD/SIO Prather aerosol team joined our project looking for dye in the air… so far the results are VERY exciting! The red box in the pictures below sucks in a bunch of air condensing all of the air-borne water droplets into a sample.
We released dye just north of the IB pier in the early morning hours of October 8th and tracked the dye for 2 days. The dye shot northward in response to a strong southerly swell driving strong northward currents. At first it was confined to the surfzone, after which it was confined to an alongshore band just outside of the surfzone. By the second day, dye was all the way up to the entrance to San Diego Bay (but in very low concentrations). Further south it was not at the surface, but it was found near the bottom! Very exciting data that we are looking forward to diving into. Here are just a couple of photos, more to come soon.
We have been checking on the instruments in the Tijuana Estuary weekly as they become entangled in kelp and covered in mud quickly!
On September 17th, we tested out some of our boat-based instrumentation which is used to sample currents, salinity, temperature, and dye in transects offshore. Some pictures from those tests are here:
REMUS – Remote Environmental Monitoring UnitS is an autonomous underwater vehicle that swims in a pre-programmed mission to sample the water currents, salinity, temperature, and dye concentration. Here you can see us testing out REMUS the week before our first dye release on September 16th! Things did not quite go as planned as you can see…
On September 15th, Falk and Sarah drove down to Tijuana to check out the release location on Playas de Tijuana and meet with our amazing collaborator Margarita Diaz at the Proyecto Fronterizo de Educaciòn Ambiental A.C.. Here you see Falk and Margarita talking on the beach.
It just started raining when we were on the beach, the rain turned into a large storm and extensive flooding in Tijuana (making our trip back from TJ… memorable!) This flooding led to the shutdown of the Mexican pumps and thus contaminated water entering the Tijuana Estuary and flowing into the ocean near Imperial Beach that afternoon through the following several days. Beaches in IB had to be closed because of the contamination and we had to make sure they were clean before we started our first dye release.
September 9, 11, and 12th we completed several more MCIP training sessions for volunteers, undergraduates, and lifeguards. Everyone had a blast!