Ocean Carbon & Biogeochemistry
Studying marine ecosystems and biogeochemical cycles in the face of environmental change
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2017 OCB Summer Workshop Archive

The 2017 OCB Summer Science Workshop was held June 26-29, 2017 at the Woods Hole Oceanographic Institution in Woods Hole, Massachusetts. View the Twitter activity for this meeting at #OCB2017!

View the online poster gallery from the workshop.

Meeting Archive Content:

  1. Plenary Sessions
  2. Agenda with Talks and Webcast Footage
  3. Poster Information
  4. Participant Information

1. Plenary Sessions

Monday, June 26, 2017

Carbon fluxes in coastal wetlands 

Organizers: Chris Osburn (NCSU), Z. Aleck Wang (WHOI), Maria Tzortziou (CUNY), Kevin Kroeger (USGS)

Coastal wetlands, photo by the U.S. Fish and Wildlife Service

Coastal wetlands (e.g., salt marshes, mangroves, tidal freshwater wetlands, and sea grass beds) exhibit high rates of carbon assimilation, storage and fluxes. These ecosystems provide a wide range of services, including carbon sequestration, coastal protection, habitat provision and nutrient and sediment regulation. Recent studies demonstrate that coastal wetlands play important roles in global and regional carbon cycles and exert significant influences on the biogeochemistry of the coastal ocean. Large uncertainties remain, however, about coastal wetland carbon biogeochemistry and fluxes due to their highly heterogeneous and dynamic nature, as well as their susceptibility to human pressures and climate change. This session will highlight new state-of-the-art observational, analytical, modeling, and large-scale assessment approaches being used to quantify and constrain carbon fluxes in coastal wetland systems, including exchange fluxes at critical boundaries such as air-water, sediment-water, and wetland-ocean interfaces.

This session kicked off with presentations by invited speakers Ray Najjar (Penn State) and Lisamarie Windham-Myers (USGS). The remainder of the session included a combination of lightning presentations by OCB workshop participants and open group discussion on the topics of internal cycling, lateral fluxes and exchanges, vertical fluxes and exchanges, and regional-scale modeling efforts.

Tuesday, June 27, 2017

Ecological and biogeochemical impacts of natural climate perturbation

Organizer: Andrew Barton (SIO)

Di Lorenzo et al. (2013) Oceanography

Projected anthropogenic climate change over the coming century is likely to impact marine ecosystems and biogeochemical cycles in marked and various ways. In addition to this anticipated change, natural modes of climate variability have been found in the past to influence marine ecosystems and biogeochemical cycles on human-relevant timescales. In some cases, the magnitude of natural perturbations and potential consequences may exceed the anticipated effects from climate warming over the coming century. Speakers in this session will examine the ecological and biogeochemical consequences of natural modes of climate variability, including El Niño-Southern Oscillation, the Pacific Decadal Oscillation, the North Atlantic Oscillation, and others. Invited talks will discuss links between climate variability and changes in a broad range of organisms and trophic levels, from plankton to top-level predators, and connect these ecological changes to biogeochemical variability.

Speakers for this session included Thomas Frölicher (ETH Zurich), Andrew Pershing (GMRI), Julie Keister (UW), and Phoebe Woodward-Jefcoats (NOAA).

Mesoscale and submesoscale physical-biological-biogeochemical interactions

Organizers: Andrea Fassbender (MBARI) and Dennis McGillicuddy (WHOI)

An eddy off Japan in Kuroshio-Oyashio Extension region, photo by NASA.

This session will address mesoscale and submesoscale dynamics and the physical-biological-biogeochemical interactions that occur over the associated space and time scales. Speakers will present research on the role of physical circulation features in the distributions of chemical constituents and organisms in coastal and open ocean regions. Both observational and modeling perspectives will be included in the discussion of how physical processes influence the transport of material and the biological pump.

Speakers for this session included Peter Gaube (APL), Melissa Omand (URI), Peter Franks (SIO), Annie Bourbonnais (WHOI), and Sophie Clayton (UW).

 

Wednesday, June 28, 2017

Stoichiometry and higher trophic levels

Organizers: Debbie Steinberg (VIMS) and Mike Roman (UMCES)

Finkel et al. (2010), Journal of Plankton Research

Ecological stoichiometry considers how the balance of C,N,P, and other chemical elements affects, and is affected by, organisms and their interactions.  The majority of research on this subject in marine ecosystems has focused on primary producers;  in this session we highlight the role of consumers in carbon and nutrient cycling.  The affects of food quality or diet (e.g., mixotrophy) on elemental balance, the importance of stoichiometry for the biological pump,  and effects on fisheries production will be addressed using examples from both marine and freshwater ecosystems.

Speakers for this session included Bob Sterner (Large Lakes Observatory, Univ. Minnesota, Duluth), Tom Anderson (NOC), Carla Atkinson (Univ. Alabama), Sigrún Jonasdottir (DTU), and Patricia Glibert (UMCES).

 

Thursday, June 29, 2017

Our autonomous future

Organizers: David Siegel (UCSB) and Jessica Cross (NOAA/PMEL)

Photo Credit: MBARI

Ocean robots such as autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs) have been a game changer for 21st century oceanography, greatly expanding our capacity in space and time to measure and explore the ocean. This session will highlight existing and visionary technologies that hold great promise for advancing OCB science, including in situ manipulation and exploration of the mesopelagic, remote molecular probes to detect microorganisms in real-time, autonomous robotic networks to quantify biogeochemical fluxes and other key ecosystem parameters, and underwater imaging technology to assess particle size spectra.

Speakers for this session included Oscar Schofield (Rutgers Univ.), Craig Lee (APL/UW), Jessica Cross (NOAA/PMEL), Dana Yoerger (WHOI), Kakani Katija (MBARI), Alexander Bochdansky (ODU), and Francisco Chavez (MBARI). 

 

2. Agenda with Talks and Webcast Footage

2017 OCB Summer Workshop Agenda (PDF)

  • Plenary sessions (in blue throughout agenda) were in Redfield Auditorium (45 Water Street, Woods Hole Village)
  • Poster sessions (Monday/Tuesday) were at MBL Swope (5 North Street, Woods Hole Village)
Monday, June 26, 2017
7:30-8:30 Breakfast (Redfield tent)
8:30 Welcome (Bethany Jenkins, URI, OCB SSC vice-chair)   Slides Video
8:40 Introduction and opening remarks (Heather Benway, OCB Project Office)   Slides Video 1 (begins 3:00) Video 2
8:55 Getting to know the Biological and Chemical Oceanography Data Management Office (BCO-DMO) at OCB 2017 (Danie Kinkade, BCO-DMO) Slides Video
Plenary Session 1. Carbon fluxes in coastal wetlands: What is state-of-the-art? –  Chairs: Chris Osburn (NCSU), Z. Aleck Wang (WHOI), Maria Tzortziou (CUNY), Kevin Kroeger (USGS) YouTube Session 1 Playlist
9:00 Session introduction and overview (Chris Osburn, NCSU)   Slides Video
9:15 Carbon budget of eastern North American tidal wetlands and estuaries (Ray Najjar, PSU) Slides Video
9:45 Coastal wetland carbon accounting: Using U.S. syntheses to build up the baseline (Lisamarie Windham-Myers, USGS) Slides Video
10:15 Open group discussion on plenary talks  Video
10:30 Break
Topic 1: Lateral fluxes and exchanges – DIC, DOC, and POC and their effects on coastal carbon chemistry and budgets (Moderator: Chris Osburn, NCSU)
11:00 Lightning talks part 1 

  • Assessing inorganic carbon export from intertidal salt marshes using direct, high-frequency measurements (Sophie Chu, NOAA PMEL)  Slides Video
  • Biogeochemistry of porewater in boreal sandy beach (Mathilde Couturier, UQAR)  Slides Video
  • Intertidal salt marshes as an important source of inorganic carbon to the coastal ocean (Aleck Wang, WHOI)   Slides Video
11:30 Panel discussion on lateral fluxes and exchanges part 1   Video
11:45 Lightning talks part 2

  • Carbon composition and dynamics at the marsh-estuary interface in a temperate system (Elizabeth Canuel, VIMS)   Slides Video
  • Wetland dissolved organic carbon (DOC) fluxes at small and large scales (Chris Osburn, NCSU)   Slides Video
  • Tidal wetlands: Lateral fluxes – linking in-situ and satellite measurements of CDOM and DOC dynamics (Maria Tzortziou, CCNY)   Slides Video
12:15 Panel discussion on lateral fluxes and exchanges part 2   Video
12:30-1:45 Networking Lunch (Redfield tent)
Topic 2: Internal cycling – Carbon burial, primary and secondary production, soil/sediment processes, groundwater (Moderator: Kevin Kroeger, USGS)
1:45 Lightning talks

  • Salt marsh metabolism and carbon accumulation (Iris Anderson, VIMS)   Slides Video
  • Salt marsh carbon burial in response to rising sea level and ecosystem restoration (Meagan Gonneea, USGS)   Slides Video
  • Shallow ponds and marsh carbon metabolism (Amanda Spivak, WHOI)   Slides Video
1:55 Panel discussion on internal cycling    Video
Topic 3: Vertical fluxes and exchanges – CO2, CH4 (Moderator: Z. Aleck Wang, WHOI)
2:05 Lightning talks

  • Inter-annual variation in marsh CO2 exchange (Inke Forbrich, MBL) Slides Video
  • Parameterizing air-water fluxes of blue carbon David Ho (UH)
  • Tidally-restricted coastal wetlands as a hotspot for carbon dioxide and methane emissions, and as a potent and untapped opportunity for anthropogenic emissions reductions (Kevin Kroeger, USGS) Slides Video
2:15 Panel discussion on vertical fluxes and exchanges    Video
Topic 4: Modeling – Connections between biogeochemical and physical models aimed at regional scales (Moderator: Maria Tzortziou, CUNY)
2:25 Lightning talks 

  • Progress and challenges in up-scaling carbon modeling to a regionally significant wetland-estuary system (Blake Clark, UMCES)   Slides Video
  • Estuarine-shelf CDOM/DOM dynamics in northern Gulf of Mexico from ocean color and numerical modeling (Eurico D’Sa, LSU)    Slides Video
  • Challenges associated with representing DOM and CDOM in models (Raleigh Hood, UMCES)   Slides Video
  • Characterizing climate and human influences on coastal margin carbon dynamics using integrated land-ocean modeling approaches (Steven Lohrenz, UMass)  Slides Video
  • The role of resuspension on organic matter, oxygen and nitrogen dynamics in coastal waters: Results from a coupled model (Julia Moriarty, VIMS)   Slides Video
2:50 Panel discussion on modeling     Video
3:15 Transition to MBL Swope (5 North Street, Woods Hole) for poster session
3:30-5:00 Poster session with beverages and light snacks (MBL Swope, Meigs Room)
5:15-6:45 Agency updates:

      • Rick Murray (NSF):   Video
      • Paula Bontempi (NASA):  Slides  Video
      • Kathy Tedesco (NOAA):  Slides  Video

Additional Agency Update Video

6:45-8:15 Welcome reception with beverages and hors d’oeuvres (Redfield tent)
8:30-10:00 Film screening of Before the Flood (Redfield Auditorium)

 

Tuesday, June 27, 2017
7:30-8:30 Breakfast (Redfield tent)
Plenary Session 2. Ecological and biogeochemical impacts of natural climate perturbation – Chair: Andrew Barton (Scripps Inst. Oceanography) YouTube Session 2 PlaylistIntroduction (Barton)
8:30 Large-scale natural variability and anthropogenic trends in multiple ocean ecosystem stressors (Thomas Frölicher, ETH Zurich)   Slides Video
9:00 Natural cycles in unnatural times or the limitations of linear thinking in an increasingly non-linear world (Andy Pershing, GMRI)   Slides Video
9:30 Mechanisms of North Pacific climate and zooplankton variability (Julie Keister, UW)   Slides Video
10:00 Break
10:30 Between the footprints of natural climate variability modes (Phoebe Woodworth-Jefcoats, NOAA)   Slides Video
11:00 Open group discussion Video
11:30 Student lightning talks (Chairs: Mara Freilich, MIT/WHOI and Julia Moriarty, VIMS)  Combined Slides Click on names below for videos

  • Kaufman
  • Williams
  • Grunert
  • Walcutt
  • Group 1 Panel Q&A (Kaufman, Williams, Grunert, Walcutt)
  • Gomes
  • Filliger
  • Sterling
  • Group 2 Panel Q&A (Gomes, Filliger, Sterling)
  • Koul
  • Tesdal
  • Tanioka
  • Group 3 Q&A (Koul, Tesdal, Tanioka)
  • Freilich
  • Erickson
  • Xu
  • Group 4 Q&A (Freilich, Erickson, Xu)
12:30-2:00 Lunch (Redfield tent)

Early career participants lunch with SSC members

1 pm: BCO-DMO Tutorial (Smith conference room)

Plenary Session 3. Mesoscale and submesoscale physical-biological-biogeochemical interactions – Chairs: Andrea Fassbender (MBARI), Dennis McGillicuddy (WHOI) YouTube Session 3 Playlist
2:00 Mechanisms of mesoscale physical/biological interaction (Peter Gaube, APL/UW)   SlidesVideo
2:30 Carbon export processes at meso- and submesoscales (Melissa Omand, URI)   SlidesVideo
3:00 Submesoscale biological patchiness: Horizontal stirring, or response to vertical velocities? (Peter Franks, SIO)   SlidesVideo
3:30 Break
3:45 Nitrogen loss in oxygen-deficient zone mesoscale eddies (Annie Bourbonnais, WHOI)   SlidesVideo
4:15 (Sub)mesoscale modulation of phytoplankton diversity and community structure (Sophie Clayton, UW)   SlidesVideo
4:45 Open group discussion  Video
5:15 Transition to MBL Swope (5 North Street, Woods Hole) for poster session
5:30-7:00 Poster session with beverages and light snacks (MBL Swope, Meigs Room )
Dinner on your own (see Local Notes in meeting folder for restaurant suggestions)

 

Wednesday, June 28, 2017
7:30-8:30 Breakfast (Redfield tent)
Plenary Session 4. Stoichiometry and higher trophic levels – Chairs: Debbie Steinberg (VIMS) and Michael Roman (UMCES)  IntroductionYouTube Session 4 Playlist
8:30 Stoichiometry of consumer-driven nutrient cycling: Background and theory (Bob Sterner, Large Lakes Observatory, Univ. Minnesota, Duluth)   SlidesVideo
9:15 Stoichiometry of mesopelagic zooplankton and carbon sequestration in the ocean (Tom Anderson, NOC)   SlidesVideo
9:45 Exploring the role of bottom-up provisioning by consumers across ecosystems (Carla Atkinson, Univ. Alabama)   SlidesVideo
10:30 Break
11:00 The role of vertically migrating zooplankton in biogeochemical flux (Sigrún Jonasdottir, DTU)   SlidesVideo
11:30 Disproportionate nutrient loads and resulting stoichiometry impacts food webs, from toxic algae to higher trophic levels (Patricia Glibert, UMCES)   SlidesVideo
12:00 Open group discussion Video
12:30-2:00 Lunch (Redfield tent)

12:45-1:45 pm: OCB Ocean Time-series Committee members meet over lunch

2:00-6:00 Free afternoon! See Local Notes in meeting folder for inspiration.
1:50 National Deep Submergence Facility Tour 1
2:20 National Deep Submergence Facility Tour 2
4:00-6:00 Program Manager reception with students/postdocs (Quissett Campus)
6:00-9:00 Workshop dinner (Redfield tent)

 

Thursday, June 29, 2017
7:30-8:30 Breakfast (Redfield tent)
Plenary Session 5. Our autonomous future – Chairs: David Siegel (UCSB), Jessica Cross (NOAA/PMEL) IntroductionYouTube Session 5 Playlist
8:30 Dawn in the age of robotic oceanography (Oscar Schofield, Rutgers) SlidesVideo
9:00 Spanning the scales: Multi-platform approaches for integrated studies of biogeochemistry and physics (Craig Lee, APL/UW) SlidesVideo
9:20 Stretching the scales of surface ocean observing systems: Biogeochemical observations from the Saildrone USV (Jessica Cross, NOAA/PMEL)   SlidesVideo
9:40 Robotic systems for survey and sampling of the mesopelagic (Dana Yoerger, WHOI)   SlidesVideo
10:00 Break
10:30 Measuring fluid and particle motion using DeepPIV (Kakani Katija, MBARI)   SlidesVideo
10:50 Digital in-line holographic microscopy (DIHM): Design, advantages, challenges and future integration into autonomous platforms (Alexander Bochdansky, ODU)   SlidesVideo
11:10 Controlled, Agile and Novel Observations Networks (CANON) (Francisco Chavez, MBARI)   SlidesVideo
11:30 Open group discussion  Video
12:00 Planning U.S. contributions to the 2nd International Indian Ocean Expedition (IIOE-2) (Raleigh Hood, UMCES)   SlidesVideo
12:20 Closing remarks and adjourn meeting (Benway, Jenkins) Video
12:30-2:00 Lunch (Redfield tent)
1:30-5:00 OCB Scientific Steering Committee Meeting (Clark 271, SSC members and agency representatives)

 

3. Poster Information

2017 OCB Summer Workshop Poster Abstracts

2017 OCB Summer Workshop Poster List by Session

2017 Poster Gallery Archive (with poster PDFs)

 

4. Participant Information

2017 OCB Summer Workshop Participant List

 

2017 Workshop Sponsors

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Funding for the Ocean Carbon & Biogeochemistry Project Office is provided by the National Science Foundation (NSF) and the National Aeronautics and Space Administration (NASA). The OCB Project Office is housed at the Woods Hole Oceanographic Institution.