{"help": "https://canwin-datahub.ad.umanitoba.ca/data/fr/api/3/action/help_show?name=package_show", "success": true, "result": {"Identifier": "10.1029/2021JC018341", "PublicationYear": "2022", "Publisher": "JGR Oceans", "ResourceType": "Journal", "Rights": "", "Version": "1.0", "author": null, "author_email": null, "citation": "", "creator_user_id": "abc97155-ba6d-4d86-a8cd-f5213c5f561e", "descriptionType": "Abstract", "id": "775cb9e1-f5c9-49ca-b4ac-8a387edebd2b", "isopen": false, "language": "English", "licenceType": "", "license_id": null, "license_title": null, "maintainer": null, "maintainer_email": null, "metadata_created": "2022-11-03T14:22:11.674980", "metadata_modified": "2023-03-08T14:54:13.331622", "name": "under-ice-hydrography-of-the-la-grande-river-plume", "notes": "A large under-ice plume forms because of the regulated winter discharge from the La Grande River hydroelectric complex (NE James Bay, Canada), which is among the largest winter discharges in the circumpolar north. In 2016\u20132017, field campaigns were completed to characterize the under-ice plume's structure, extent, and short-term dynamics related to tides, weather, and discharge. Amid concerns of the freshwater's impact on eelgrass, the lateral spreading of the under-ice plume into inshore areas was also assessed. When discharges averaged 4,800 m3 s\u22121 throughout the January\u2013March periods, the freshwater influence of La Grande River extended more than 100 km north along the James Bay coast, with the brackish (salinity <25) under-ice plume more than three times larger than for a natural winter discharge of \u223c460 m3 s\u22121. The core area of the under-ice plume, defined as the area with a highly stratified water column and surface layer of salinity <5, extended 30\u201335 km north and >20 km south. It was stable throughout the January\u2013March 2016\u20132017 periods and, despite 30% higher winter discharge, was not significantly larger compared to survey periods in 1984\u20131987. This stability appears to be due to coastal geometry and width of the landfast ice cover, under which the plume can spread with limited mixing. Inshore salinity was about 5\u201310 units lower in winter versus the open-water period. The seasonal duration of reduced salinity at eelgrass habitats will depend on landfast ice duration as well as river discharge magnitude.", "num_resources": 0, "num_tags": 4, "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": ["75b7af23-960e-45fd-929d-ad52de7ac70b", "7d323a54-203e-4625-85c7-188218b3e2f3"], "related_programs": ["0e9cc4d4-73fe-4499-a90b-233e9084fc36"], "rightsIdentifier": "", "rightsIdentifierScheme": "SPDX", "rightsSchemeURI": "https://spdx.org/licenses", "rightsURI": "", "schemeURI": "http://vocab.nerc.ac.uk/", "state": "active", "subjectScheme": "Polar Data Catalogue", "theme": ["98238b1c-5be8-41ad-8c6e-74cdc4f5f369"], "title": "Under-Ice Hydrography of the La Grande River Plume in Relation to a Ten-Fold Increase in Wintertime Discharge", "type": "publication", "url": null, "version": null, "Author": [{"affiliation": "Centre for Earth Observation Science - University of Manitoba", "creatorName": "Chris Peck", "email": "peckc@myumanitoba.ca", "nameIdentifier": "", "nameType": "Personal"}], "relatedResources": [{"RelatedIdentifier": "", "ResourceTypeGeneral": "", "name": "", "relatedIdentifierType": "", "relationType": "", "resourceType": "Online Resource", "seriesName": ""}], "tags": [{"display_name": "Coastal dynamics", "id": "66cdae03-d53f-451d-86db-a7acb0a3e70d", "name": "Coastal dynamics", "state": "active", "vocabulary_id": null}, {"display_name": "Freshwaters", "id": "cb187f8f-37dc-438e-a069-71354da9c469", "name": "Freshwaters", "state": "active", "vocabulary_id": null}, {"display_name": "eelgrass", "id": "e0ddd719-5d39-4913-8f9e-9c3a8b387a1d", "name": "eelgrass", "state": "active", "vocabulary_id": null}, {"display_name": "ice", "id": "447cd074-304d-4331-9c81-88ab70e4ddcc", "name": "ice", "state": "active", "vocabulary_id": null}], "resources": [], "groups": [], "relationships_as_subject": [], "relationships_as_object": []}}