{"help": "https://canwin-datahub.ad.umanitoba.ca/data/en/api/3/action/help_show?name=package_show", "success": true, "result": {"PublicationYear": "2026", "Publisher": "Centre for Earth Observation Science", "ResourceType": "Poster", "Rights": "Creative Commons Attribution 4.0 International", "Version": "1.0", "author": null, "author_email": null, "citation": "", "creator_user_id": "a37ee0fa-6f1b-4927-bebe-6502df9dc0aa", "descriptionType": "Abstract", "id": "b535ec46-c837-4eed-b699-95944a987d8b", "isopen": false, "language": "", "licenceType": "", "license_id": null, "license_title": null, "maintainer": null, "maintainer_email": null, "metadata_created": "2026-03-27T20:04:19.958949", "metadata_modified": "2026-03-27T20:06:17.873756", "name": "land-to-sea-carbon-delivery-in-western-james-bay", "notes": "Rivers play an important role in the transport of carbon (C) into the global ocean, and en route much C is lost to the atmosphere, buried, or transformed largely by biological or photochemical processes. Many Arctic and subarctic watersheds drain seasonally, or permanently frozen soils, rich in organic C. In particular, the rivers of southwestern Hudson Bay and James Bay (SHBJB) drain the Hudson Bay Lowlands (HBL), which are the world\u2019s second largest contiguous wetland and are estimated to hold in excess of 33 Gt C. The amount of terrestrial C delivered from the HBL into the adjacent coastal ocean, its seasonality and composition (i.e., organic/inorganic) has yet to be quantified. This knowledge gap has prevented a comprehensive understanding of food web dynamics and nutrient cycling in estuarine and marine environments of SHBJB. Since 2021, and through community partnerships, the river C load has been monitored in the lower reaches of the Moose River watershed, and thereafter C monitoring has been expanded to include other major rivers draining the HBL. Here we present information on the delivery of terrestrial C from major rivers into SHBJB resulting from the monitoring program, and provide, for the first time, estimates of total riverine C delivery from the HBL into James Bay. Our goal is to better understand the response of the land-to-ocean C delivery in the HBL to changes in watersheds attributed to climate and development, and to support ecosystem studies within SHBJB.", "num_resources": 1, "num_tags": 7, "organization": {"id": "9e21f6b6-d13f-4ba2-a379-fd962f507071", "name": "ceos", "title": "Centre for Earth Observation Science", "type": "organization", "description": "The Centre for Earth Observation Science (CEOS) was established in 1994 with a mandate to research, preserve and communicate knowledge of Earth system processes using the technologies of Earth Observation Science. Research is multidisciplinary and collaborative seeking to understand the complex interrelationships between elements of Earth systems, and how these systems will likely respond to climate change. Although researchers have worked in many regions, the Arctic marine system has always been a unifying focus of activity.\r\n\r\nIn 2012, CEOS, along with the Greenland Climate Research Centre (GCRC, Nuuk, Greenland) and the Arctic Research Centre (ARC, Aarhus, Denmark) established the Arctic Science Partnership, thereby integrating academic and research initiatives.\r\n\r\nAreas of existing research activity are divided among key themes:\r\n\r\nArctic Anthropology/Paleoclimatology: LiDAR scanning and digital site preservation, archaeo-geophysics, permafrost degredation, lithic morphometrics, zooarchaeology, proxy studies, paleodistribution of sea ice, landscape learning, Paleo-Eskimo culture, Thule Inuit culture, ethnographic analogy, traditional knowledge, climate change and northern heritage resource management.\r\n\r\nAtmospheric Studies/Meteorology: Boundary layer, precipitation, clouds, storms and extreme weather, circulation, eddy correlations, polar vortex, climate, teleconnections, geophysical fluid dynamics, flux and energy budgets, ocean-sea ice-atmosphere interface, radiative transfer, ice albedo feedback, cloud radiative forcing, pCO2. \r\n\r\nBiogeochemistry: Organic carbon, greenhouse gases, bubbles, Ikaite, carbonate chemistry, CO2 fluxes, mercury and other trace metals, minerals, hydrocarbons, brine processes, otolith microchemistry, sediments, biomarkers. \r\n\r\nContaminants: Mercury, trace metals, PAHs, source, transport, transformation, pathways, bioaccumulations, marine ecosystems, marine chemistry. \r\nEarth Observation Science: Active and passive microwave, LiDAR, EM induction, spatial-temporal analysis, forward and inverse scattering models, complex permittivity, ocean colour, ocean surface roughness, NIR, TIR, satellite telemetry, GPS. Ice-Associated Biology: Biophysical processes, primary production; ice algae, ice microbiology, bio-optics, under-ice phytoplankton. \r\n\r\nInland Lakes and Waters: Hydrologic connectivity, watershed systems, sediment transport, nutrient transport, contaminants, landscape processes, remote sensing, freshwater-marine coupling. Marine Mammals: Seals, whales, habitat, conservation, satellite telemetry, distribution, population studies, prey behaviour, bioacoustics.\r\n\r\nModelling: Simulation of sea ice and oceanic regional processes, Nucleus for European Modelling of the Ocean (NEMO), ice-ocean modelling and interactions, hind cast simulations and projections for sea ice state and ocean variables based on CMIP5 scenarios and MIROC5 forcing, validation.\r\n\r\nOceanography: Circulation, temperature, in-flow and out-flow shelves, water dynamics, microturbulence, Beaufort Gyre, eddy correlations.\r\n\r\nSea Ice Geophysics:Thermodynamic and dynamic processes, extreme ice features and hazards, snow, ridges, polynyas.\r\n\r\nTraditional and Local Knowledge: Indigenous cultures, Inuit, Inuvialuit, oral history, toponomy, mobility and settlement, hunting, food security, sea ice use, community-based research, community-based monitoring, two ways of knowing.", "image_url": "2021-11-13-003953.952874UMLogoHORZ.jpg", "created": "2017-07-21T13:15:49.935872", "is_organization": true, "approval_status": "approved", "state": "active"}, "owner_org": "9e21f6b6-d13f-4ba2-a379-fd962f507071", "private": false, "related_datasets": [], "related_programs": ["78605f2c-ce3c-4008-81a9-3c86ef27afda"], "rightsIdentifier": "CC-BY-4.0", "rightsIdentifierScheme": "SPDX", "rightsSchemeURI": "https://spdx.org/licenses", "rightsURI": "https://spdx.org/licenses/CC-BY-4.0.html", "schemeURI": "", "state": "active", "subjectScheme": "Polar Data Catalogue", "theme": ["233d4241-32d6-4396-9f62-a7da8ac23e6d", "8f8cd877-b037-4b1a-b928-f86d9e093741", "8305e56e-2b51-458f-886e-bad747de8c61", "51452bcd-df36-4945-9f0b-e68b2bf9605b"], "title": "Land-to-sea carbon delivery in western James Bay", "type": "publication", "url": null, "version": null, "Author": [{"affiliation": "Centre for Earth Observation Science - University of Manitoba", "creatorName": "Ledger, Keilan", "email": "", "nameIdentifier": "", "nameType": "Personal"}, {"affiliation": "", "creatorName": "Litvinov, Alexandre", "email": "", "nameIdentifier": "", "nameType": "Personal"}, {"affiliation": "Centre for Earth Observation Science - University of Manitoba", "creatorName": "Kuzyk, Zou Zou", "email": "", "nameIdentifier": "", "nameType": "Personal"}, {"affiliation": "", "creatorName": "Guzzi, Alessia ", "email": "", "nameIdentifier": "", "nameType": "Personal"}, {"affiliation": "Fisheries and Oceans Canada", "creatorName": "Capelle, David", "email": "", "nameIdentifier": "", "nameType": "Personal"}, {"affiliation": "Centre for Earth Observation Science - University of Manitoba", "creatorName": "Papakyriakou, Tim", "email": "", "nameIdentifier": "", "nameType": "Personal"}], "awards": [{"awardTitle": "", "awardURI": "", "funderIdentifier": "", "funderIdentifierType": "", "funderName": "", "funderSchemeURI": "", "grantNumber": ""}], "groups": [{"description": "Inland water features, drainage systems and their characteristics. Examples of data you can find here include river and lake data, water quality data. \r\n\r\nIn CEOS, related research themes include biogeochemistry, Inland lakes and waters, modelling, remote sensing and technology, trace metals and contaminants.", "display_name": "Freshwater", "id": "8f8cd877-b037-4b1a-b928-f86d9e093741", "image_display_url": "https://canwin-datahub.ad.umanitoba.ca/data/uploads/group/2021-10-31-211937.658599hyinspirehydrography.svg", "name": "freshwater", "title": "Freshwater"}], "relatedResources": [{"RelatedIdentifier": "", "ResourceTypeGeneral": "", "name": "", "relatedIdentifierType": "", "relationType": "", "resourceType": "Online Resource", "seriesName": ""}], "resources": [{"cache_last_updated": null, "cache_url": null, "created": "2026-03-27T20:06:17.309905", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "", "format": "PDF", "hash": "", "id": "4029eb59-460f-4ec3-b6db-9455ebd7c22e", "last_modified": "2026-03-27T20:06:17.179319", "metadata_modified": "2026-03-27T20:06:17.892682", "mimetype": "application/pdf", "mimetype_inner": null, "name": "Ledger ArcticNet ASM poster 2025", "package_id": "b535ec46-c837-4eed-b699-95944a987d8b", "position": 0, "resCategory": "documents", "resource_type": null, "size": 1410161, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/publication/b535ec46-c837-4eed-b699-95944a987d8b/resource/4029eb59-460f-4ec3-b6db-9455ebd7c22e/download/anet2025_ledger.pdf", "url_type": "upload"}], "tags": [{"display_name": "Freshwater", "id": "1e580de0-cd41-4650-afcc-f80a5595f82f", "name": "Freshwater", "state": "active", "vocabulary_id": null}, {"display_name": "Freshwater flows", "id": "3ccb1e65-b631-4341-8b46-51b25d3a7d50", "name": "Freshwater flows", "state": "active", "vocabulary_id": null}, {"display_name": "Inorganic Carbon", "id": "68d69329-6709-4719-9ead-a7d46daa6497", "name": "Inorganic Carbon", "state": "active", "vocabulary_id": null}, {"display_name": "Moose River", "id": "dbc93557-ff7d-46ab-a5ac-4d320d7e0b54", "name": "Moose River", "state": "active", "vocabulary_id": null}, {"display_name": "Nutrients", "id": "44265c2a-a639-4779-9481-478b0d6262ac", "name": "Nutrients", "state": "active", "vocabulary_id": null}, {"display_name": "Organic carbon", "id": "45ac30b1-c261-4cf8-b5a4-fce346776e8e", "name": "Organic carbon", "state": "active", "vocabulary_id": null}, {"display_name": "River", "id": "0ef7eedf-de0e-4f6e-9e14-fa137079198d", "name": "River", "state": "active", "vocabulary_id": null}], "relationships_as_subject": [], "relationships_as_object": []}}