Undergraduate students explore the Scripps Coastal Reserve during an extreme low tide and take temperature profiles below the Ellen Browning Scripps Memorial Pier for the course SIO 119: Physics and Chemistry of the Ocean. The course studies the basic physical and chemical processes that influence the biology of the oceans such as ocean circulation, ocean acidification, carbonate chemistry, and more.  Here, the students were studying how the physical and chemical properties of water in a tide pool change while the tide pool is isolated, and took temperature profiles beneath the pier. Scripps professors Sarah Gille and Andreas Andersson teach the class, which is open to students majoring in marine biology and oceanic and atmospheric sciences at UC San Diego.