Seminar: Bill Smith

View Calendar
October 19, 2020 11:30 am - 12:20 pm
The effects of increasing water constraint on vegetation growth: Insights from novel remote sensing observations from plot to globe

 

Climate warming is profoundly altering water availability from region to globe and these changes are impacting ecosystem functioning in complex ways, potentially resulting in strong feedbacks to future climate that are currently not well understood. Remote sensing observations present a powerful tool for high spatiotemporal monitoring of ecosystem functioning and vegetation-drought dynamics across spatiotemporal scales. In this talk, I will explore vegetation responses to a changing hydroclimate from plot to globe with a focus on novel remote sensing observations including solar-induced fluorescence, hyperspectral reflectance, and structural traits. Specifically, I will present results from: 1) a UArizona / USDA-ARS long-term, rainfall manipulation initiative; 2) a synthesis of more than 30 eddy flux tower sites distributed across the western US including a gradient of UArizona / USDA-ARS sites; 3) multi-sensor satellite observations at the global scale and spanning the last four decades.

Related upcoming events

  • December 8, 2021 10:00 am - December 8, 2021 11:00 am

    The Science of Team Science

    The complexity of scientific problems, coupled with a growing need for specialized expertise, requires the formation of teams of experts who collaborate across disciplinary boundaries to generate scientific breakthroughs. The variety of knowledge available in convergence science teams provides the breadth of expertise to tackle complex problems that would be intractable by a single discipline.  This presentation demonstrates the use of formal interventions to support early-stage discovery collaborations focused on curing devastating diseases. To advance their objectives, these collaborations must overcome profound differences in members’ specialized knowledge while simultaneously having little familiarity and limited prior histories of collaboration with one another to build from. We conducted a field quasi-experiment using 26 biomedical research collaborations across the US in their incipient stage, as they began work on treatments or cures for human diseases. We provided a “scaffolding intervention,” which we define as an interaction-focused intervention involving interim problem solving and provisional planning and tested its efficacy. Results show that using a scaffolding intervention allowed collaborations to fast-track convergence such that members’ disparate and diverse expertise was more effectively integrated, which led to increased productivity. The effect of the scaffolding intervention was mediated by the extent to which collaborators were able to align and coordinate with one another to complete project tasks.

  • January 10, 2022 11:30 am - January 10, 2022 12:30 pm

    Leeds University

  • January 24, 2022 11:30 am - January 24, 2022 12:30 pm

    Bill & Melinda Gates Foundation

    Breeding Analytics for Climate Adaptative Ag for Africa

  • January 31, 2022 11:30 am - January 31, 2022 12:30 pm

    Boston University

  • February 7, 2022 11:30 am - February 7, 2022 12:30 pm

    Landflux.org

  • February 14, 2022 11:30 am - February 14, 2022 12:30 pm

    USDA Forest Service

  • February 21, 2022 11:30 am - February 21, 2022 12:30 pm

    Colorado State University

  • March 7, 2022 11:30 am - March 7, 2022 12:30 pm

    University of Illinois, Chicago

  • March 14, 2022 All day
    No additional details for this event.
  • March 21, 2022 11:30 am - March 21, 2022 12:30 pm

    NOAA