Event Calendar

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December 2017

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MarineGEO: The Force Awakens

MarineGEO: The Force Awakens

Thursday, December 7, 2017 - 11:00am - 12:00pm
Event Location
Schmidt Conference Center

Speaker: Emmett Duffy, MarineGEO director

Pre-registration Required
No

Event Details

Our midday seminars are open to the public. Because they are directed to a scientific audience, they are more technical than our evening lectures. To learn more about our free Bay Optimism evening lecture series, visit our evening lecture homepage.

Summary: The Marine Global Earth Observatory (MarineGEO) is a network of partners, led by the Smithsonian, collaborating to understand how coastal ecosystems work and how to keep them working. Our research focuses on biodiversity because it is essential to the health and functioning of ecosystems, and on the nearshore coastal zone where biodiversity and people are concentrated and interact most. MarineGEO complements existing ocean observing efforts, but is unique in its focus on biodiversity and the integration of networked experiments, sustained long-term observations, historical ecology, and traditional ecological knowledge. MarineGEO aspires to build a sustainable business model for a long-term biodiversity observation network by focusing on simple, standardized, and scalable approaches that require minimal capital investment and engage students and citizens to mutual benefit. MarineGEO adds value to local partner’s research by “connecting the dots” to answer bigger questions, diffuse best practices, network databases, and build capacity via training and exchange. Officially launched in 2013, MarineGEO is an exemplar of the “One Smithsonian” philosophy, headquartered at SERC, engaging participants from throughout the institution, and linked to Conservation Commons and Biogenomics. In this talk, MarineGEO director Emmett Duffy will review a few examples illustrating the value and promise of this collaborative approach, including (1) lessons from two intensive biodiversity campaigns, (2) first results from Ocean Bitemap, a global, crowd-sourced experiment that began building the first global map of coastal fish predation intensity, and (3) a collaborative analysis of the value of marine biodiversity based on data from collaboration with the Reef Life Survey.

11:00AM - 12:00PM
 
 
 
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Science Seminar: Estimates of wetland-estuary organic carbon cycling in the Rhode River

Science Seminar: Estimates of wetland-estuary organic carbon cycling in the Rhode River

Thursday, December 14, 2017 - 11:00am - 12:00pm
Event Location
Schmidt Conference Center

Speaker: J. Blake Clark, University of Maryland Center for Environmental Science

Pre-registration Required
No

Event Details

Our Thursday science seminars are open to the public. Because they are directed towards an audience of scientists, they are more technical than our evening lectures. Learn more about our free Bay Optimism evening lecture series.

Summary: A new three-dimensional hydrodynamic biogeochemical model has been developed for the Rhode River, Md., to better simulate processes related to wetland-estuary organic carbon cycling. The new model incorporates processes important to wetland organic carbon, including wetland sediment dissolved organic carbon (DOC) inputs and explicit mechanistic photodegradation of colored DOC in the water column. The model predicts an average flux from the Kirkpatrick Marsh of 178 grams per square meter of DOC every year, with the wetland DOC signal dissipating from the marsh towards the mouth of the Rhode River. Results indicate that marsh-derived DOC attenuates primarily due to physical mixing and dilution, and secondarily due to biological remineralization enhanced by photodegradation.

11:00AM - 12:00PM
 
 
 
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Dec 14, 2017

  • Science Seminar: Estimates of wetland-estuary organic carbon cycling in the Rhode River

    Science Seminar: Estimates of wetland-estuary organic carbon cycling in the Rhode River

    Thursday, December 14, 2017 - 11:00am - 12:00pm
    Event Location
    Schmidt Conference Center

    Speaker: J. Blake Clark, University of Maryland Center for Environmental Science

    Pre-registration Required
    No

    Event Details

    Our Thursday science seminars are open to the public. Because they are directed towards an audience of scientists, they are more technical than our evening lectures. Learn more about our free Bay Optimism evening lecture series.

    Summary: A new three-dimensional hydrodynamic biogeochemical model has been developed for the Rhode River, Md., to better simulate processes related to wetland-estuary organic carbon cycling. The new model incorporates processes important to wetland organic carbon, including wetland sediment dissolved organic carbon (DOC) inputs and explicit mechanistic photodegradation of colored DOC in the water column. The model predicts an average flux from the Kirkpatrick Marsh of 178 grams per square meter of DOC every year, with the wetland DOC signal dissipating from the marsh towards the mouth of the Rhode River. Results indicate that marsh-derived DOC attenuates primarily due to physical mixing and dilution, and secondarily due to biological remineralization enhanced by photodegradation.

    11:00AM - 12:00PM