Ocean Carbon & Biogeochemistry
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Archive for News – Page 3

OCB Supports Early Career Participants in Cornell Satellite Remote Sensing Training Program

Posted by mmaheigan 
· Thursday, July 25th, 2024 

OCB Supports Early Career Participants in Cornell Satellite Remote Sensing Training Program 2024

María del Alma Concepción Rodríguez
María del Alma Concepción Rodríguez
Alba Guzman-Morales
Alba Guzman-Morales
Kiwanuka Moses
Kiwanuka Moses
Michelle Wagner
Michelle Wagner

Michelle Wagner is in her first year of master’s study at the City College of New York. Her research interest is in monitoring the responses of coastal systems to natural and anthropogenic stressors. After graduating from the City College of New York, Michelle joined the Tzortziou Bio-optics lab at CCNY. Her work utilized HPLC and microscopic analysis as well remote sensing data to characterize seasonal shifts in phytoplankton community composition in the Long Island Sound estuary and increasing intensity in red tide events and other HABS.

I am very happy to have been a part of the Cornell 2024 Satellite Remote Sensing Training Program this summer. As someone who is new to the world of satellite data processing, I could not have asked for a better introduction. Dr. Monger’s strong expertise as well as his guidance and encouragement gave me the confidence to tackle hard problems. The course not only introduced me to Python programming but also provided a range of tools for handling satellite data. It significantly broadened my perspective and deepened my understanding of satellite remote sensing. I really enjoyed this course and would recommend it to anyone pursuing satellite remote sensing and ocean color analysis. I would like to say thank you to Dr. Bruce Monger and OCB for this amazing experience!

 

Alba Guzmán Morales was born in Arecibo, Puerto Rico. She received her B.S. in Biology and M.S. in Biological Oceanography from the University of Puerto Rico Mayagüez Campus in 2019 and 2024, respectively. Her research focused on using satellite imagery to study water clarity trends in Puerto Rico to evaluate management efforts in a watershed. As a NOAA Cooperative Science Center in Atmospheric Sciences and Meteorology Fellow, she evaluated the applicability of a NOAA Kd490 product by comparing it with in situ Kd490. She has also been involved in Unmanned Aerial Vehicle research to measure salinity.

Cornell's Satellite Remote Sensing course was what I expected and more. While I had previous experience processing satellite data the course provided me with tools I hadn’t yet had the opportunity to use in my work. It was amazing to process and visualize L1 to L2 ocean color, SST, wind, and altimetry data. I am deeply thankful to the great instructors Dr. Bruce Monger and Jillian Steinmetz, to the colleagues I met during the course as well as OCB for supporting this opportunity. Let the research continue!

 

Kiwanuka Moses: I’m a second-year Earth Systems Science PhD Student working under Dr. Sridhar Maruthi Balaji Bhaskar at Florida International University. My research uses remote sensing and machine learning to estimate water quality parameters for inland lakes (Okeechobee and Victoria). The goal is to develop monitoring algorithms based on Landsat 8 OLI and Sentinel 2 MSI images. These models will be correlated with results from NASA SeaDAS software.

The Cornell Satellite Remote Sensing course was a great experience. I learned multiple ways of downloading datasets, cleaning them, and channeling them to a particular study area. I also learned how to use Python command lines for image processing using NASA SeaDAS and better understood the different components of oceanography (Physical and biological) as a field. There was a great improvement in my programming skills. I enjoyed every moment with Dr. Bruce Monger and Ms. Jillian Elaine, the TA. Their patience regarding the questions directed at them was exceptional. I recommend this course to anyone interested in remote sensing and ocean color. Special thanks to Ocean Carbon and Biogeochemistry (OCB) for the sponsorship and for making this a reality for me.

 

María del Alma Concepción Rodríguez's journey into water resources began during her undergraduate studies at the Polytechnic University of Puerto Rico. Earning a Bachelor of Science in Chemical Engineering and a master’s in environmental management, she immersed herself in internships and projects related to the water industry. These experiences profoundly impacted her, highlighting water's vital role as the driving force of nature and the center of life.

As she advanced to her PhD in Civil Engineering, now going into her third year, María del Alma’s passion for water conservation grew stronger. She became particularly concerned about the potential contamination from regulated wastewater disposals in the waters surrounding the Caribbean Island of Puerto Rico. This concern sparked a compelling desire to delve deeper into understanding their impacts. Her doctoral research is a testament to this dedication. It focuses on how effluent discharges affect oceanic waters and aims to develop a comprehensive evaluation methodology. María del Alma leverages innovative GIS techniques to identify contamination hotspots through spatial data analysis. Her goal is to create geospatial models that visualize current and future scenarios, providing a clearer picture of the potential impacts on our waters.

Through her work, María del Alma strives to protect and conserve our natural environment, recognizing that safeguarding water resources is not just important but essential.

Imagine learning about the intricacies of satellite remote sensing while collaborating with peers, all within the vibrant academic atmosphere of Cornell University—that was my experience in a nutshell. The 2024 Cornell Satellite Remote Sensing Summer Course was an enriching experience that deepened my technical knowledge and connected me with a network of passionate individuals in the remote sensing community. The course’s rigorous curriculum laid a strong foundation for my understanding of the field and opened my eyes to the vast remote sensing applications. We delved into the core principles of remote sensing, how the satellite data is collected, and the processing of such data using coding. Dr. Bruce Monger was an excellent instructor who guided us throughout the course while getting a better understanding of each of our investigations. Teaching assistant Jillian Steinmetz was knowledgeable and always willing to assist us. The course featured lectures and hands-on workshops where you were given exercises to work on the computer using Python and SeaDAS to understand the processing of satellite imagery. One of the most exciting moments of the course was the hands-on experience with satellite data—using advanced software to process and analyze the data and turn the raw information into meaningful insights for my PhD research. Participating in the 2024 Cornell Satellite Remote Sensing Training Program was a transformative experience that broadened my horizons and passion for using innovative technology in real-world water applications.

Seeking community feedback on applications of GLIMR

Posted by hbenway 
· Thursday, June 20th, 2024 
The Geostationary Littoral Imaging and Monitoring Radiometer (GLIMR) mission will be NASA's first geostationary, hyperspectral ocean color sensor to study ocean processes at the spatial and temporal scales required to observe the dynamic ecological, biogeochemical and physical processes typical of coastal and ocean waters.
We would like to invite you to fill out a short survey (https://www.surveymonkey.com/r/GLIMR), to provide feedback on the GLIMR mission. Your answers will help NASA anticipate the scope of GLIMR science and applications, tailor GLIMR capabilities to your needs, and develop GLIMR data products and tools that are useful, actionable, and easily accessible.
We look forward to your response.
Maria Tzortziou
(on behalf of the entire GLIMR Science Team)

NOAA NESDIS Oceans and Water Satellite Symposium

Posted by hbenway 
· Thursday, June 20th, 2024 

Learn more about GeoXO and the future of hyperspectral ocean color. If you are interested in the use of cutting-edge remote sensing technology to monitor the health of oceans, estuaries, lakes, and rivers, we highly encourage your participation. 

July 29, 11-4 EDT

Learn more and register (in person and virtual) HERE

New Publication from Mixotrophs & Mixotrophy Working Group members

Posted by hbenway 
· Thursday, June 6th, 2024 

Millette, N. C. et al. (2024). Recommendations for advancing mixoplankton research through empirical-model integration. Front. Mar. Sci., 05 June 2024, Sec. Marine Ecosystem Ecology, Volume 11 - 2024 | https://doi.org/10.3389/fmars.2024.1392673.

Learn more about this working group here.

Looking for easy data access to high quality time-series data? SPOTS is out!

Posted by mmaheigan 
· Thursday, April 18th, 2024 

Whether we aim to disentangle anthropogenic driven trends from naturally variability or we want to assess and improve our ocean model’s capabilities to correctly display changes in time, all require high-quality observational data from multiple fixed time-series data. Until now access to these data was difficult, time-consuming, and often required solving multiple data challenges before these data were fit for the purpose. Following the successful examples set by well-known ocean synthesis products, the idea for SPOTS – the Synthesis Product for Ocean Time-Series – was born from this need to address these challenging.

The recently published SPOTS pilot provides biogeochemical essential ocean variables from 12 ship-based fixed time-series scattered around the globe covering the period from 1983 until 2021. An extensive quality assessment enables the straightforward detection of method changes, and in combination with further introduced data quality indicators, the pilot enhances the inter- and intra-station comparability of the included time-series stations. The stations in SPOTS represent unique open ocean and coastal marine environments in the Atlantic, Pacific, Mediterranean, Caribbean, and the Nordic Seas. More than 100,000 water samples are harmonized into one consistent, FAIR, and readily available data synthesis product.

The SPOTS pilot drastically reduces the amount of time needed to obtain high quality and comparable time-series data from multiple programs around the globe. SPOTS facilitates a variety of applications that benefit from the collective value of biogeochemical time-series observations, complementing relevant products for the global ocean that don’t offer the temporal variability and quality of data that fixed time-series programs have. This pilot gives a first glance of what SPOTS has to offer and hopefully many updates of a sustained time-series living data product, SPOTS, will follow.

Read more in the SPOTS paper and access data via BCODMO at https://www.bco-dmo.org/dataset/896862.

NASA ROSES 2024 Proposal Opportunities for SOLAS research

Posted by hbenway 
· Wednesday, April 17th, 2024 

The OCB Ocean-Atmosphere Interactions Committee has compiled relevant NASA ROSES 2024 proposal opportunities and deadlines for air-sea research – could be your next funded project! There is plenty of inspiration in the US SOLAS Science Plan!

Register for the next GO-BGC Webinar on May 9 – High Latitude Ocean Biogeochemistry

Posted by hbenway 
· Tuesday, April 2nd, 2024 

Please join us for the quarterly GO-BGC webinar, hosted by the US Ocean Carbon and Biogeochemistry Project Office. This webinar will be focused on high-latitude ocean biogeochemistry by exploring the research of two groups that participated in the 2023 GO-BGC/BGC Argo Float Data Workshop at the University of Massachusetts Boston. The webinar will begin with an update on the status of the GO-BGC float array, followed by two short presentations. We’ll then close with a community discussion and Q and A session. Recordings will be available on the OCB and GO-BGC websites.

REGISTER HERE

Agenda for May 9, 10 AM Pacific / 1 PM Eastern:

  1. Yui Takeshita (Monterey Bay Aquarium Research Institute, USA, yui@mbari.org):

An update on the GO-BGC program

  1. Daniel Koestner (University of Bergen, Norway)

Biogeochemical properties of the Lofoten Basin Eddy from 14 years of BGC-Argo float data

Oceanic eddies are typically short lived but are a crucial physical phenomenon supporting heat and nutrient exchanges across water bodies. The Lofoten Basin Eddy (LBE) is a seemingly permanent topographically constrained anti-cyclonic eddy situated in the northern Norwegian Sea containing relatively cool surface waters and consistently warmer subsurface waters. As such, the conditions in the LBE may drive significantly different biogeochemical processes than the surrounding waters. Here we examine the unique biogeochemical signatures of the LBE with the 14-year timeseries of BGC-Argo float observations. We describe methodology for float-eddy colocation and examine differences in key biogeochemical parameters inside and outside of the eddy, including organic carbon export.

  1. Sophie Shapiro (University of California San Diego, USA)

Lessons and opportunities from the Southern Ocean Sea Ice team at the 2023 GO-BGC Float Data Workshop

In the winter of 2023, the Southern Ocean reached a record low sea ice extent anomaly. This unprecedented low sea ice coverage coincided with the August convening of the GO-BGC float data workshop. What insights could a cohort of motivated researchers uncover with two working days and the BGC Argo dataset? In this talk, we present preliminary data from BGC floats deployed in the Southern Ocean marginal sea ice zone. We illustrate the potential of the observational network to investigate further questions about the dynamics and impacts of changing sea ice. Finally, we highlight insights and challenges from the GO-BGC workshop to demonstrate the further potential of collaborative data working groups.

  1. Discussion

NEW ACTIVITY: participation opportunity for metatranscriptomic intercomparison

Posted by mmaheigan 
· Thursday, March 21st, 2024 

A new OCB Activity is kicking off: Intercomparison of metatranscriptomic methods for characterizing microbial eukaryote contributions to the biological carbon pump

There are opportunities to speak and suggest speakers and themes in the bimonthly webinar series. And to participate in the intercomparison activities.

Learn more and apply

 

PACE HACKWEEK – apply by March 17

Posted by mmaheigan 
· Sunday, March 10th, 2024 

Learn more and apply

Leaky Deltas Webinars & Workshop

Posted by mmaheigan 
· Thursday, March 7th, 2024 

Scoping Workshop: Leaky deltas: sources or sinks in the global carbon cycle?

March 17-20, 2025
Louisiana State Univ. (Baton Rouge, LA)

Workshop agenda
Workshop recordings
LeakyDeltasLogo3
IMG_0182

Leaky Deltas workshop summary

The Leaky Deltas OCB workshop was held 17-20 March 2025 at Louisiana State University, in Baton Rouge, USA, which is situated within the Mississippi River delta. We brought together 57 members of the research community who study river deltas in the context of the global carbon cycle. The goal of the workshop was to create […]

Read More

Thank you for another inspiring OCB workshop! Recordings of the plenary sessions will be available in 1-2 months on the OCB YouTube Channel, and we will post an announcement here.

Webinar Series - a lead up activity to the Leaky Deltas workshop

February 4: Gerrit Trapp-Müller, Fei Da, and Gabriella Akpah Yeboah

October 24: Robert Twilley and Marc Simard

September 26: Muriel Bruckner and Anastasia Pillouras

May 30: Bob Aller

April 18: Bin Zhao and Thomas Bianchi

March 14: Christophe Rabouille

View past webinar recordings

River deltas and the adjacent coastal ocean are critical interfaces between terrestrial and oceanic environments. Deltas are the entry point of ~50% of the fresh water and 40% of all global particulate matter entering the ocean. They are major centers for particulate and dissolved organic carbon net transfer from land to ocean.

Recent evidence suggests that coastal oceans have become net sink for atmospheric CO2 during post-industrial times and continued human pressures in coastal zones and alterations to deltas will likely have an important impact on the future evolution of the coastal ocean’s carbon budget.

Despite the importance of deltas and blue carbon ecosystems to the global carbon cycle and coastal communities, land-to-ocean parameterizations in Earth System models are highly simplified and do not mechanistically include many of the processes involved in cycling carbon in these areas.

Significant and critical knowledge gaps on processes, their impacts on marine biogeochemistry, and the direction of future change exist—this workshop aims to address those knowledge gaps.

We will bring together scientists who are committed to exploring the physical, temporal, and biogeochemical processes that modulate fluxes of carbon to and from global deltas.

This scoping workshop will utilize momentum from the OCB 2023 Summer Workshop plenary session focused on deltaic systems to build a network of modelers, experimentalists, and field scientists working on deltas in this era of unprecedented climate change and other anthropogenic stresses, and will address and advance several OCB mission-specific topics:

  1. human and climate-driven changes in ocean biogeochemistry and related marine ecosystem impacts
  2. carbon cycling, storage, uptake, and modulation at a critical land-ocean interface along the aquatic continuum
  3. sedimentary fluxes and benthic-pelagic coupling as they relate to C, nutrients, and other elemental cycles e.g., O2, Fe, Mn
  4. marine organism response to environmental changes associated with delta loss, subsidence, salinization, and other anthropogenic disturbances

 

Organizers

Shaily Rahman picture
Shaily Rahman
Kanchan Maiti
Kanchan Maiti
Cristina Schultz
Cristina Schultz
Liz Chamberlain
Liz Chamberlain
Jaap Nienhuis
Jaap Nienhuis
Julia Moriarty
Julia Moriarty
Marisa Repasch
Marisa Repasch

Shaily Rahman (UC Boulder)
Kanchan Maiti (LSU)
Jaap Nienhuis (Utrecht University)
Cristina Schultz (Northeastern University)
Elizabeth Chamberlain (Wageningen University)
Julia Moriarty (CU Boulder)
Marisa Repasch (University of New Mexico)

 

 

WORKSHOP TOPICS
Ocean biogeochemistry – Influence of delta systems on adjacent coastal ocean in terms of carbon cycle (DIC/ALK/pCO2) both in water column and sediment, carbon burial and lateral transport of carbon.

Ecosystems – Role of salt marshes, mangroves, and sea grass on carbon retention and burial in delta plain and net export to adjacent ocean; reconstructions and forecasts of the distribution of these coastal ecosystems.

Novel methods and integration – Employing new technologies, e.g., chronology, remote sensing, to reconstruct and monitor delta change; integrating field and model data to study processes and change across timescales (past, present, and future).

Connectivity – Variability in hydrological connectivity across delta plain and delta shelf and its impact on carbon consumption, transport and retention.

Perturbations – Impact of climate and human driven changes including extreme events on delta carbon cycling.

Biogeochemical modeling: including mechanistic understanding of carbon cycling in the land-to-ocean continuum in global models, parameterizations of blue carbon ecosystems in high-resolution ocean models, quantifying organic and inorganic carbon transfers from deltas to theocean.


PRE-WORKSHOP

Objectives

  • Recruit and build a community from an interdisciplinary group including geomorphologists, modelers, biogeochemists, paleoclimatologists, scientists with expertise in remote sensing technologies, scientists who integrate data across spatial-temporal scales, and of varying career stage, to study delta dynamics and associated impacts to marine C fluxes.
  • Compile and prioritize unresolved scientific questions or problems in the coupling between delta dynamics and marine C fluxes.
  • Engage with and query community to begin achieving community consensus.

Activities

  1. Remote townhalls
  2. Sessions at Goldschmidt 2024 and AGU 2024
  3. Gatherings with NASA DeltaX, CMS (Carbon Monitoring System), and CSDMS (Community Surface Dynamics Modeling System) communities at their annual meetings
  4. Electronic surveys sent to townhall participants and session attendees (with their permission) to determine several community-consensus-driven topics to be highlighted in the 3-day scoping workshop

OUTCOMES

The workshop aims to develop knowledge and define future research needs on the role of deltas in the global carbon cycle while building an interdisciplinary community around this understudied yet critical aspect of ocean biochemistry. To distribute these outcomes to the broader community there will be a consensus paper, a global delta carbon budget infographic, and an AGU Eos piece.

Dive in to this topic

Role of deltaic sediments in regulating biogeochemical cycles (Chairs: Shaily Rahman, Jessica Luo, Cristina Schultz)

OCB2023 PLENARY SESSION TALKS (recorded June 2023)

  • Introduction and OCB Benthic Ecosystem & Carbon Synthesis (BECS) working group highlight (Shaily Rahman, CU Boulder; Jessica Luo, NOAA/GFDL, Cristina Schultz, Northeastern Univ.)
  • Deltas as dynamic diagenetic and biogeochemical cycling systems (Robert Aller, Stony Brook Univ.)
  • Global river deltas and their relevance within Earth’s sediment source to sink (Jaap Nienhuis, Utrecht Univ.)
  • Distributary channel dynamics control water and sediment dispersal along deltaic coastlines (Brandee Carlson, Univ. Houston) (virtual)
  • Tools for interrogating deltas (Elizabeth Chamberlain, Wageningen Univ.)
  • Sea level and river deltas across time scales: From the last lowstand to modern anthropogenic alterations (Till Hanebuth, Coastal Carolina Univ.)
  • Oxygen and carbon dynamics in river-influenced shelf sediments (Kanchan Maiti, Louisiana State Univ.)
  • The biogeochemical cycling of Si and P in deltaic systems (Shaily Rahman, CU Boulder)
  • A mouth(ful) of mangroves taking root in tropical deltas (David Lagomasino, East Carolina Univ.)
  • Panel discussion
Watch webinar recordings on YouTube
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