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Glacial meltwater is an important environmental variable for ecosystem dynamics along the biologically productive Western Antarctic Peninsula (WAP) shelf. This region is experiencing rapid change, including increasing glacial meltwater discharge associated with the melting of land ice. To better understand the WAP environment and aid ecosystem forecasting, additional methods are needed for monitoring and quantifying glacial meltwater for this remote, sparsely sampled location. Prior studies showed that sea surface glacial meltwater (SSGM) has unique optical characteristics which may allow remote sensing detection via ocean color data. In this study, we develop a first-generation model for quantifying SSGM that can be applied to both spaceborne (MODIS-Aqua) and airborne (PRISM) ocean color platforms. In addition, the model was prepared and verified with one of the more comprehensive in-situ stable oxygen isotope datasets compiled for the WAP region. The SSGM model appears robust and provides accurate predictions of the fractional contribution of glacial meltwater to seawater when compared with in-situ data (r = 0.82, median absolute percent difference = 6.38%, median bias = −0.04), thus offering an additional novel method for quantifying and studying glacial meltwater in the WAP region.

The inventory and variability of oceanic dissolved inorganic carbon (DIC) is driven by the interplay of physical, chemical, and biological processes. Quantifying the spatiotemporal variability of these drivers is crucial for a mechanistic understanding of the ocean carbon sink and its future trajectory. Here, we use the Estimating the Circulation and Climate of the Ocean-Darwin ocean biogeochemistry state estimate to generate a global-ocean, data-constrained DIC budget and investigate how spatial and seasonal-to-interannual variability in three-dimensional circulation, air-sea CO2 flux, and biological processes have modulated the ocean sink for 1995-2018. Our results demonstrate substantial compensation between budget terms, resulting in distinct upper-ocean carbon regimes. For example, boundary current regions have strong contributions from vertical diffusion while equatorial regions exhibit compensation between upwelling and biological processes. When integrated across the full ocean depth, the 24-year DIC mass increase of 64 Pg C (2.7 Pg C year-1) primarily tracks the anthropogenic CO2 growth rate, with biological processes providing a small contribution of 2% (1.4 Pg C). In the upper 100 m, which stores roughly 13% (8.1 Pg C) of the global increase, we find that circulation provides the largest DIC gain (6.3 Pg C year-1) and biological processes are the largest loss (8.6 Pg C year-1). Interannual variability is dominated by vertical advection in equatorial regions, with the 1997-1998 El Niño-Southern Oscillation causing the largest year-to-year change in upper-ocean DIC (2.1 Pg C). Our results provide a novel, data-constrained framework for an improved mechanistic understanding of natural and anthropogenic perturbations to the ocean sink.

The 2017–2027 National Academies' Decadal Survey, Thriving on Our Changing Planet, recommended Surface Biology and Geology (SBG) as a “Designated Targeted Observable” (DO). The SBG DO is based on the need for capabilities to acquire global, high spatial resolution, visible to shortwave infrared (VSWIR; 380–2500 nm; ~30 m pixel resolution) hyperspectral (imaging spectroscopy) and multispectral midwave and thermal infrared (MWIR: 3–5 μm; TIR: 8–12 μm; ~60 m pixel resolution) measurements with sub-monthly temporal revisits over terrestrial, freshwater, and coastal marine habitats. To address the various mission design needs, an SBG Algorithms Working Group of multidisciplinary researchers has been formed to review and evaluate the algorithms applicable to the SBG DO across a wide range of Earth science disciplines, including terrestrial and aquatic ecology, atmospheric science, geology, and hydrology. Here, we summarize current state-of-the-practice VSWIR and TIR algorithms that use airborne or orbital spectral imaging observations to address the SBG DO priorities identified by the Decadal Survey: (i) terrestrial vegetation physiology, functional traits, and health; (ii) inland and coastal aquatic ecosystems physiology, functional traits, and health; (iii) snow and ice accumulation, melting, and albedo; (iv) active surface composition (eruptions, landslides, evolving landscapes, hazard risks); (v) effects of changing land use on surface energy, water, momentum, and carbon fluxes; and (vi) managing agriculture, natural habitats, water use/quality, and urban development. We review existing algorithms in the following categories: snow/ice, aquatic environments, geology, and terrestrial vegetation, and summarize the community-state-of-practice in each category. This effort synthesizes the findings of more than 130 scientists.

Background: The coronavirus disease 2019 (COVID-19) pandemic has increased the rate of nurses leaving practice, which has highlighted the importance of new graduate nurse orientation. The literature has limited recommendations for orientation strategies. Method: The goal of this study was to determine what changes have occurred in orientation processes for new graduate nurses since the COVID-19 pandemic. A survey of nurse leaders was used to examine changes and opportunities. Results: Leaders are more intentional with orientation processes, including frequent check-ins and increased discussion of time management, difficult conversations, and workplace violence. Individualized orientation plans are used, along with a stronger focus on nurse wellness. Conclusion: Recommendations include continuing support after orientation is completed and partnering with academia to provide content on stress management and wellness. Innovative and cost-effective transition to practice programs are needed to meet the needs of new nurses. [J Contin Educ Nurs. 2024;55(7):345–350.] [ABSTRACT FROM AUTHOR]

Background: The COVID-19 pandemic created a unique opportunity to evolve an interdisciplinary palliative care seminar (IPC) into a virtual platform. This seminar provides foundational palliative and hospice concepts, introductions into palliative care disciplines, integration of teamwork, and incorporates interdisciplinary student led patient encounters. Traditionally, this experience had been in person, however during the COVID-19 pandemic, healthcare restrictions transitioned the educational delivery to a virtual platform. Methods: To assess the knowledge gained from this novel experience, the Palliative Care Knowledge Test (PCKT) was administered before and after the IPC Seminar. A 1-year follow up survey was also administered to evaluate how the IPC Seminar was applicable to the students' clinical experiences and practice. Results: The virtual didactics and virtual student led patient encounters significantly improved learners understanding of palliative and hospice care. This gain of knowledge was noted across undergraduate and graduate programs, which highlights the need for and benefit from foundational concepts. Furthermore, a 1-year follow up survey noted the IPC seminar was applicable to their practices and suggests that this experience will impact future patients. Discussion: Many of the students practice in rural areas where access to palliative care services is limited or non-existent. This experience exponentially impacts the growth of palliative and hospice care understanding and access to care across the region. Conclusion: Evolving our IPC Seminar has shown to significantly improve knowledge, foster collaboration of student led interdisciplinary teams, and increases capacity to meet the needs of more learners. [ABSTRACT FROM AUTHOR]

The risks harmful algal blooms (HAB) pose to aquatic ecosystems, public health, and coastal economies necessitate supplementation of current observation strategies. Herein, we explore the use of red solar induced fluorescence (SIF) from the TROPOspheric Monitoring Instrument (TROPOMI), a remote sensing measurement retrievable in variable cloud conditions, for Karenia brevis detection. Along the West Florida Shelf from 2018 to 2020, we compare red SIF with normalized fluorescence line height (nFLH) from MODIS‐Aqua, a standard remote sensing HAB indicator limited to clear sky days. A strong positive linear relationship is found between nFLH and red SIF during severe bloom conditions in 2018 (N = 33,376, r‐value = 0.79, R2 = 0.63) permitting direct comparison. Red SIF provided nearly double the amount of spatiotemporal fluorescence information than nFLH. This work presents the first application of TROPOMI's red SIF for HAB monitoring and illuminates an approach for bolstering early warning systems for HABs beyond clear sky conditions. Plain Language Summary: When microscopic algae receive their favorable amount of light and nutrients, they can rapidly multiply and some types of algae have harmful impacts on the environment and humans. As algae photosynthesize, they emit a faint glow in the red wavelengths and this glow, known as fluorescence, is detectable by satellite instruments. We compared two satellite instruments capable of measuring fluorescence, Sentinel 5 Precursor TROPOspheric Monitoring Instrument (TROPOMI) and MODIS‐Aqua, during massive harmful algal blooms along the West Florida Shelf from 2018 to 2020. We found that the two instruments were strongly correlated during severe harmful algal blooms and found that TROPOMI was able to gather more fluorescence information in space and time than MODIS‐Aqua because it can retrieve fluorescence in optically thin cloud conditions. Key Points: First application of red solar induced fluorescence (SIF) for harmful algal bloom (HAB) monitoringDuring severe HAB conditions, red SIF was consistent with existing monitoring toolsRed SIF provides nearly double the amount of HAB information [ABSTRACT FROM AUTHOR]