Archive for News – Page 3

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
Kanchan Maiti
Cristina Schultz
Liz Chamberlain
Jaap Nienhuis
Julia Moriarty
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

Coastal DOM database – CoastDOM v1

Posted by hbenway 
· Wednesday, February 28th, 2024 

We present the first edition of a global database (CoastDOM v1) and a resulting data manuscript, which compiles previously published and unpublished measurements of DOC, DON, and DOP in coastal waters, consisting of 62,338 (DOC), 20,356 (DON), and 13,533 (DOP) data points, respectively.

CoastDOM v1 includes observations of concentrations from all continents between 1978 and 2022. However, most data were collected in the Northern Hemisphere, with a clear gap in DOM measurements from the Southern Hemisphere.

This dataset will be useful for identifying global spatial and temporal patterns in DOM and will help facilitate the reuse of DOC, DON, and DOP data in studies aimed at better characterizing local biogeochemical processes; closing nutrient budgets; estimating carbon, nitrogen, and phosphorous pools; and establishing a baseline for modelling future changes in coastal waters.

The aim is to publish an updated version of the database periodically to determine global trends of DOM levels in coastal waters, and so if you have DOM data lying around, please submit it to Christian Lønborg (c.lonborg@ecos.au.dk).

CITATIONS

Lønborg et al. 2024. A global database of dissolved organic matter (DOM) concentration measurements in coastal waters (CoastDOM v1), Earth Syst. Sci. Data, 16, 1107–1119, https://doi.org/10.5194/essd-16-1107-2024

Lønborg et al. 2023.A global database of dissolved organic matter (DOM) concentration measurements in coastal waters (CoastDOM v.1). PANGAEA, https://doi.org/10.1594/PANGAEA.964012

« Previous Page
Next Page »

Filter by Keyword

abundance acidification additionality advection africa air-sea air-sea interactions algae alkalinity allometry ammonium AMO AMOC anoxic Antarctic Antarctica anthro impacts anthropogenic carbon anthropogenic impacts appendicularia aquaculture aquatic continuum aragonite saturation arctic Argo argon arsenic artificial seawater AT Atlantic atmospheric CO2 atmospheric nitrogen deposition authigenic carbonates autonomous platforms AUVs bacteria bathypelagic BATS BCG Argo benthic bgc argo bio-go-ship bio-optical bioavailability biogeochemical cycles biogeochemical models biogeochemistry Biological Essential Ocean Variables biological pump biophysics bloom blue carbon bottom water boundary layer buffer capacity C14 CaCO3 calcification calcite carbon carbon-climate feedback carbon-sulfur coupling carbonate carbonate system carbon budget carbon cycle carbon dioxide carbon export carbon fluxes carbon sequestration carbon storage Caribbean CCA CCS changing marine chemistry changing marine ecosystems changing marine environments changing ocean chemistry chemical oceanographic data chemical speciation chemoautotroph chesapeake bay chl a chlorophyll circulation clouds CO2 CO3 coastal and estuarine coastal darkening coastal ocean cobalt Coccolithophores commercial community composition competition conservation cooling effect copepod copepods coral reefs CTD currents cyclone daily cycles data data access data assimilation database data management data product Data standards DCM dead zone decadal trends decomposers decomposition deep convection deep ocean deep sea coral denitrification deoxygenation depth diatoms DIC diel migration diffusion dimethylsulfide dinoflagellate dinoflagellates discrete measurements distribution DOC DOM domoic acid DOP dust DVM ecology economics ecosystem management ecosystems eddy Education EEZ Ekman transport emissions ENSO enzyme equatorial current equatorial regions ESM estuarine and coastal carbon fluxes estuary euphotic zone eutrophication evolution export export fluxes export production extreme events faecal pellets fecal pellets filter feeders filtration rates fire fish Fish carbon fisheries fishing floats fluid dynamics fluorescence food webs forage fish forams freshening freshwater frontal zone functional role future oceans gelatinous zooplankton geochemistry geoengineering geologic time GEOTRACES glaciers gliders global carbon budget global ocean global warming go-ship grazing greenhouse gas greenhouse gases Greenland ground truthing groundwater Gulf of Maine Gulf of Mexico Gulf Stream gyre harmful algal bloom high latitude human food human impact human well-being hurricane hydrogen hydrothermal hypoxia ice age ice cores ice cover industrial onset inland waters in situ inverse circulation ions iron iron fertilization iron limitation isotopes jellies katabatic winds kelvin waves krill kuroshio lab vs field land-ocean continuum larvaceans lateral transport LGM lidar ligands light light attenuation lipids low nutrient machine learning mangroves marine carbon cycle marine heatwave marine particles marine snowfall marshes mCDR mechanisms Mediterranean meltwater mesopelagic mesoscale mesoscale processes metagenome metals methane methods microbes microlayer microorganisms microplankton microscale microzooplankton midwater mitigation mixed layer mixed layers mixing mixotrophs mixotrophy model modeling model validation mode water molecular diffusion MPT MRV multi-decade n2o NAAMES NCP nearshore net community production net primary productivity new ocean state new technology Niskin bottle nitrate nitrogen nitrogen cycle nitrogen fixation nitrous oxide north atlantic north pacific North Sea NPP nuclear war nutricline nutrient budget nutrient cycles nutrient cycling nutrient limitation nutrients OA observations ocean-atmosphere ocean acidification ocean acidification data ocean alkalinity enhancement ocean carbon storage and uptake ocean carbon uptake and storage ocean color ocean modeling ocean observatories ocean warming ODZ oligotrophic omics OMZ open ocean optics organic particles oscillation outwelling overturning circulation oxygen pacific paleoceanography PAR parameter optimization parasite particle flux particles partnerships pCO2 PDO peat pelagic PETM pH phenology phosphate phosphorus photosynthesis physical processes physiology phytoplankton PIC piezophilic piezotolerant plankton POC polar polar regions policy pollutants precipitation predation predator-prey prediction pressure primary productivity Prochlorococcus productivity prokaryotes proteins pteropods pycnocline radioisotopes remineralization remote sensing repeat hydrography residence time resource management respiration resuspension rivers rocky shore Rossby waves Ross Sea ROV salinity salt marsh satellite scale seafloor seagrass sea ice sea level rise seasonal seasonality seasonal patterns seasonal trends sea spray seawater collection seaweed secchi sediments sensors sequestration shelf ocean shelf system shells ship-based observations shorelines siderophore silica silicate silicon cycle sinking sinking particles size SOCCOM soil carbon southern ocean south pacific spatial covariations speciation SST state estimation stoichiometry subduction submesoscale subpolar subtropical sulfate surf surface surface ocean Synechococcus technology teleconnections temperate temperature temporal covariations thermocline thermodynamics thermohaline thorium tidal time-series time of emergence titration top predators total alkalinity trace elements trace metals trait-based transfer efficiency transient features trawling Tris trophic transfer tropical turbulence twilight zone upper ocean upper water column upwelling US CLIVAR validation velocity gradient ventilation vertical flux vertical migration vertical transport warming water clarity water mass water quality waves weathering western boundary currents wetlands winter mixing zooplankton

Copyright © 2025 - OCB Project Office, Woods Hole Oceanographic Institution, 266 Woods Hole Rd, MS #25, Woods Hole, MA 02543 USA Phone: 508-289-2838  •  Fax: 508-457-2193  •  Email: ocb_news@us-ocb.org

link to nsflink to noaalink to WHOI

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.