Search for: All records

Abstract Marine heatwave (MHW) events have led to acute decreases in primary production and phytoplankton biomass in the surface ocean, particularly at the mid latitudes. In the Northeast Pacific, these anomalous events have occasionally encroached onto the Oregon shelf during the ecologically important summer upwelling season. Increased temperatures reduce the density of offshore waters, and as a MHW is present offshore, coincident downwelling or relaxation may transport warmer waters inshore. As an event persists, new upwelling‐driven blooms may be prevented from extending further offshore. This work focuses on MHWs and coincident events that occurred off Oregon during the summers of 2015–2023. In late summer 2015 and 2019, both documented MHW years, coastal phytoplankton biomass extended on average 6 and 9 km offshore of the shelf break along the Newport Hydrographic Line, respectively. During years not influenced by anomalous warming, coastal biomass extended over 34 km offshore of the shelf break. Reduced biomass also occurs with reduced upwelling transport and nutrient flux during these anomalous warm periods. However, the enhanced front associated with a MHW aids in the compression of phytoplankton closer to shore. Over shorter events, heatwaves propagating far inshore also coincide with reduced chlorophyllaand sea‐surface density at select cross‐shelf locations, further supporting a physical displacement mechanism. Paired with the physiological impacts on communities, heatwave‐reinforced physical confinement of blooms over the inner‐shelf may have a measurable effect on the gravitational flux and alongshore transport of particulate organic carbon. 

New technologies are continually being placed in the ocean, constantly collecting ocean data in real-time. As a result, Data Literacy is now a necessary learning goal for supporting students' Ocean Literacy. The newest ships in the U.S. Academic Research Fleet, the Regional Class Research Vessels (RCRVs), are being built with the aim of supporting data literacy through outreach and education, with aid from a forthcoming real-time data portal. To understand how the RCRV’s outreach and education initiatives can best support data and ocean literacy, while also facilitating intentional engagement with minoritized populations, a three-phase research strategy was conducted over three years. The objective was to determine promising practices in data literacy education and shipboard outreach that are also culturally responsive. The first phase of the research interviewed experts in the fields of teaching, data literacy, shipboard education, and community engagement in order to generate recommendations. The second phase was an assessment of a three-day data literacy high-school curriculum utilizing research vessel data. The third phase examined the success of potential culturally responsive data literacy curricular frameworks and teaching practices in an afterschool pilot program for Latinx youth. The research determined that in a world where students have never ending access to data, data literacy education must be scaffolded throughout a student's life. Data used in education must be contextual and relatable and the best tools for data literacy learning are designed for teachers and students. As new knowledge is being generated about the ocean through new technologies continually collecting data, ocean literacy can no longer exist without data literacy.