{"help": "https://canwin-datahub.ad.umanitoba.ca/data/api/3/action/help_show?name=package_show", "success": true, "result": {"Creator": "Creator", "Date": "2026-01-14", "IdentifierType": "DOI", "PublicationYear": "2026", "Publisher": "CanWIN", "RelatedIdentifierType": "URL", "RelationType": "IsSupplementTo", "ResourceType": "cyclone tracks", "Rights": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International", "Version": "13.3", "accessTerms": "CanWIN datasets are licensed individually, however most are licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) Public License. Details for the licence applied can be found using the Licence URL link provided with each dataset.\r\n\r\nBy using data and information provided on this site you accept the terms and conditions of the License. Unless otherwise specified, the license grants the rights to the public to use and share the data and results derived therefrom as long as the proper acknowledgment is given to the data licensor (citation), that any alteration to the data is clearly indicated, and that a link to the original data and the license is made available.", "activityCollectionType": "", "author": null, "author_email": null, "campaignEndDate": "", "campaignStartDate": "", "contributorName": "Alex D Crawford", "contributorType": "DataCurator", "creator_user_id": "c3ad971e-75e0-4e57-b825-8ed25f306937", "dataCuratorAffiliation": "Centre for Earth Observation Science - University of Manitoba", "dataCuratorEmail": "alex.crawford@umanitoba.ca", "datasetCitation": "", "datasetIdentifier": "10.34992/ebnw-s681", "datasetLevel": "1.1", "datasetPublisher": "CanWIN", "dateType": "Updated", "descriptionType": "Abstract", "eastBoundLongitude": "180.0", "embargoDate": "", "endDate": "2024-12-31", "endDateType": "Other", "frequency": "As needed", "id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "isopen": false, "kvSchemeURI": "https://www.polardata.ca/pdcinput/public/keywordlibrary", "licenceShemeURI": "https://spdx.org/licenses", "licenceType": "Open", "license_id": null, "license_title": null, "maintainer": null, "maintainer_email": null, "metadata_created": "2021-11-09T19:43:58.331056", "metadata_modified": "2026-02-24T00:03:51.918013", "methodCitation": "", "name": "nsidc-extratropical-cyclone-tracking-cnect", "northBoundLatitude": "90.0", "notes": "This dataset comprises a series of CSV files, each of which catalogues a suite of information for an individual cyclone track for the Northern Hemisphere. Detection and tracking are conducted using version 13.3 of the Lagrangian cyclone detection and tracking algorithm described by Crawford et al. (2021). This algorithm is applied to sea-level pressure data from Version 5 of the European Centre for Medium-Range Weather Forecasts (ECMWF) Retrospective Analysis (ERA-5) at a 3-hour temporal resolution and 25-km spatial resolution for the period 1940 \u2013 present (updated annually). Each CSV file contains information regarding the location, propagation, intensity, and size of the storm for each observation time. Whether a storm is a multi-center cyclone or interacting (splitting or merging) with other storm systems is also noted. Only cyclones that last at least 24 hours and travel at least 1000 km are included. Storms must also be observed at least once over an elevation under 500 m and at least once at a distance at least 500 km from their point of origin. These standard criteria are necessary to remove spurious systems (i.e., reduce the false positive rate).", "num_resources": 17, "num_tags": 2, "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. 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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, "projectImage": "", "relatedIdentifier": "", "related_campaigns": [], "related_deployments": [], "related_instruments": [], "related_platforms": [], "related_programs": ["4d4cbb98-ee92-4bb0-8765-31c68b4e96e0"], "related_publications": ["d44acc5d-ecab-4eab-bd8a-a4bd5669d212"], "resourceTypeGeneral": "Dataset", "rightsIdentifier": "CC-BY-NC-SA-4.0", "rightsIdentifierScheme": "SPDX", "rightsURI": "https://spdx.org/licenses/CC-BY-NC-SA-4.0.html", "southBoundLatitude": "0.0", "spatial": "{\"type\":\"Polygon\",\"coordinates\":[[[-180,0],[180,0],[180,90],[-180,90],[-180,0]]]}", "spatial_regions": "northern-hemisphere", "startDate": "1979-01-01", "startDateType": "Collected", "state": "active", "status": "Complete", "subjectScheme": "Polar Data Catalogue", "theme": ["a30e8354-1f4f-42d6-a783-53b56ead2bb7", "d5c57e39-a747-4085-ba9c-3cfb44f9d5ef"], "title": "Northern Hemisphere Extratropical Cyclone Tracks from ERA-5", "titleType": "Alternative Title", "type": "dataset", "url": null, "useTerms": "By accessing this data you agree to [CanWIN's Terms of Use](https://dev.uni-manitoba.links.com.au/data/publication/canwin-data-statement/resource/5b942a87-ef4e-466e-8319-f588844e89c0).", "version": null, "westBoundLongitude": "-180.0", "contributors": [{"affiliation": "National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder", "contributorName": "Serreze, Mark C", "contributorType": "ProjectMember", "email": "", "nameIdentifier": "0000-0002-3699-302X", "nameIdentifierScheme": "ORCID", "schemeURI": "http://orcid.org/"}, {"affiliation": "College of Wooster", "contributorName": "Sommer, Nathan", "contributorType": "ProjectMember", "email": "nsommer@wooster.edu", "nameIdentifier": "ORCID", "nameIdentifierScheme": "ORCID", "schemeURI": "http://orcid.org/"}], "creatorName": [{"author": "Crawford, Alex", "creatorAffiliation": "Agriculture and Agri Food Canada", "creatorEmail": "alex.crawford@umanitoba.ca", "creatorNameIdentifier": "0000-0003-1561-290X", "nameIdentifierScheme": "ORCID", "nameType": "Personal", "schemeURI": "http://orcid.org/"}], "groups": [{"description": "Processes and phenomena of the atmosphere \u2013 or \u2018weather and climate\u2019. 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Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the period 1980-1989. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. 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Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the period 1990-1999. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "83f7269e-c4f5-4690-bd50-71e4d0476890", "last_modified": "2025-09-23T20:36:46.958090", "metadata_modified": "2025-09-23T20:43:16.150868", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 1990-1999", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 8, "resCategory": "data", "resource_type": null, "size": 39036142, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/83f7269e-c4f5-4690-bd50-71e4d0476890/download/cnect-nh-era5-1990-1999.zip", "url_type": "upload"}, {"cache_last_updated": null, "cache_url": null, "created": "2025-09-23T20:37:26.629444", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Folder containing CSV files that describe extratropical cyclone tracks detected from the ERA5 atmospheric analysis using version 13.2 of the CEOS/NSIDC extratropical cyclone tracking algorithm (as described in Crawford et al., 2021; https://doi.org/10.1175/MWR-D-20-0417.1). Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the period 2000-2009. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "8d5d2c9e-196b-4dbe-ac87-6a6cebcf0ae2", "last_modified": "2025-09-23T20:37:26.506807", "metadata_modified": "2025-09-23T20:42:09.355046", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 2000-2009", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 9, "resCategory": "data", "resource_type": null, "size": 39684866, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/8d5d2c9e-196b-4dbe-ac87-6a6cebcf0ae2/download/cnect-nh-era5-2000-2009.zip", "url_type": "upload"}, {"cache_last_updated": null, "cache_url": null, "created": "2025-09-23T20:37:56.586624", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Folder containing CSV files that describe extratropical cyclone tracks detected from the ERA5 atmospheric analysis using version 13.2 of the CEOS/NSIDC extratropical cyclone tracking algorithm (as described in Crawford et al., 2021; https://doi.org/10.1175/MWR-D-20-0417.1). Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the period 2010-2019. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "70bf8f2c-83da-4c88-bfbc-fe0a17a73796", "last_modified": "2025-09-23T20:37:56.436958", "metadata_modified": "2025-09-23T20:41:55.102151", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 2010-2019", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 10, "resCategory": "data", "resource_type": null, "size": 39505642, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/70bf8f2c-83da-4c88-bfbc-fe0a17a73796/download/cnect-nh-era5-2010-2019.zip", "url_type": "upload"}, {"cache_last_updated": null, "cache_url": null, "created": "2025-09-23T20:38:32.736175", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Folder containing CSV files that describe extratropical cyclone tracks detected from the ERA5 atmospheric analysis using version 13.2 of the CEOS/NSIDC extratropical cyclone tracking algorithm (as described in Crawford et al., 2021; https://doi.org/10.1175/MWR-D-20-0417.1). Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the year 2020. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "ced01a53-f2ca-48fd-809c-cd99b83b7431", "last_modified": "2025-09-23T20:38:32.594286", "metadata_modified": "2025-09-23T20:44:44.903382", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 2020", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 11, "resCategory": "data", "resource_type": null, "size": 3878875, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/ced01a53-f2ca-48fd-809c-cd99b83b7431/download/cnect-nh-era5-2020.zip", "url_type": "upload"}, {"cache_last_updated": null, "cache_url": null, "created": "2025-09-23T20:39:12.635644", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Folder containing CSV files that describe extratropical cyclone tracks detected from the ERA5 atmospheric analysis using version 13.2 of the CEOS/NSIDC extratropical cyclone tracking algorithm (as described in Crawford et al., 2021; https://doi.org/10.1175/MWR-D-20-0417.1). Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the year 2021. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "9b63b1ad-f5f1-4b4a-9c4b-8ca0a913a6b1", "last_modified": "2025-09-23T20:39:12.496405", "metadata_modified": "2025-09-23T20:44:07.028741", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 2021", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 12, "resCategory": "data", "resource_type": null, "size": 3942097, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/9b63b1ad-f5f1-4b4a-9c4b-8ca0a913a6b1/download/cnect-nh-era5-2021.zip", "url_type": "upload"}, {"cache_last_updated": null, "cache_url": null, "created": "2025-09-23T20:39:42.908807", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Folder containing CSV files that describe extratropical cyclone tracks detected from the ERA5 atmospheric analysis using version 13.2 of the CEOS/NSIDC extratropical cyclone tracking algorithm (as described in Crawford et al., 2021; https://doi.org/10.1175/MWR-D-20-0417.1). Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the year 2022. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "e9ef2608-e3f1-4edf-b987-281bd13b1e62", "last_modified": "2025-09-23T20:39:42.767601", "metadata_modified": "2025-09-23T20:43:51.260697", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 2022", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 13, "resCategory": "data", "resource_type": null, "size": 3856064, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/e9ef2608-e3f1-4edf-b987-281bd13b1e62/download/cnect-nh-era5-2022.zip", "url_type": "upload"}, {"cache_last_updated": null, "cache_url": null, "created": "2025-09-23T20:40:00.782942", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Folder containing CSV files that describe extratropical cyclone tracks detected from the ERA5 atmospheric analysis using version 13.2 of the CEOS/NSIDC extratropical cyclone tracking algorithm (as described in Crawford et al., 2021; https://doi.org/10.1175/MWR-D-20-0417.1). Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the year 2023. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "8bc6e96f-b50c-4fef-906c-16fc1ca98522", "last_modified": "2025-09-23T20:40:00.628326", "metadata_modified": "2025-09-23T20:43:34.054640", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 2023", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 14, "resCategory": "data", "resource_type": null, "size": 3563369, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/8bc6e96f-b50c-4fef-906c-16fc1ca98522/download/cnect-nh-era5-2023.zip", "url_type": "upload"}, {"cache_last_updated": null, "cache_url": null, "created": "2025-09-23T20:44:44.913689", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Folder containing CSV files that describe extratropical cyclone tracks detected from the ERA5 atmospheric analysis using version 13.2 of the CEOS/NSIDC extratropical cyclone tracking algorithm (as described in Crawford et al., 2021; https://doi.org/10.1175/MWR-D-20-0417.1). Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the year 2024. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "a5befcfe-1b51-48a4-ae05-159b8db5ef2c", "last_modified": "2025-09-23T20:44:44.765446", "metadata_modified": "2025-09-25T16:59:21.688950", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 2024", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 15, "resCategory": "data", "resource_type": null, "size": 3467577, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/a5befcfe-1b51-48a4-ae05-159b8db5ef2c/download/cnect-nh-era5-2024.zip", "url_type": "upload"}, {"cache_last_updated": null, "cache_url": null, "created": "2026-01-14T15:15:58.729283", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Folder containing CSV files that describe extratropical cyclone tracks detected from the ERA5 atmospheric analysis using version 13.2 of the CEOS/NSIDC extratropical cyclone tracking algorithm (as described in Crawford et al., 2021; https://doi.org/10.1175/MWR-D-20-0417.1). Storms are detected with a 3-h temporal resolution and 25-km spatial resolution for the year 2024. All storms whose ending time (cyclolysis) occurs in the same month are grouped into a single CSV file and can be identified by their unique system number (sid). The monthly files are organized within folders for each year. See accompanying metadata file for more details (e.g., descriptions and units for each column).\r\n\r\nThis algorithm explicitly tracks each center of a multi-center cyclones, but in this database, each multi-center cyclone is represented only by its primary center -- i.e., the entire storm system is being represented by the location and area. Only storm systems that meet the following four criteria are included: lifespan of at least 24 hours, track length of at least 1000 km, observed at least once over an elevation less than 500 m, and observed at least once at at a distance of at least 500 km from its origin point are included.", "format": "ZIP", "hash": "", "id": "fdfbc60e-ea0b-4d2c-81f2-f21b8a5a5660", "last_modified": "2026-01-14T15:15:58.528941", "metadata_modified": "2026-02-24T00:03:51.928858", "mimetype": "application/zip", "mimetype_inner": null, "name": "Northern Hemisphere Extratropical Cyclone Tracks from ERA5: 2025", "package_id": "4be4d01a-a14b-483f-a1a6-6ead0974fa57", "position": 16, "resCategory": "data", "resource_type": null, "size": 3420642, "state": "active", "url": "https://canwin-datahub.ad.umanitoba.ca/data/dataset/4be4d01a-a14b-483f-a1a6-6ead0974fa57/resource/fdfbc60e-ea0b-4d2c-81f2-f21b8a5a5660/download/cnect-nh-era5-2025.zip", "url_type": "upload"}], "supplementalResources": [{"RelatedIdentifier": "10.24381/cds.adbb2d47", "ResourceTypeGeneral": "Model", "name": "", "relatedIdentifierType": "", "relationship": "", "resourceType": "Online Resource", "seriesName": ""}, {"RelatedIdentifier": "", "ResourceTypeGeneral": "", "name": "", "relatedIdentifierType": "", "relationship": "", "resourceType": "Online Resource", "seriesName": ""}, {"RelatedIdentifier": "", "ResourceTypeGeneral": "", "name": "Mean Pressure at Sea-level from ERA-5", "relatedIdentifierType": "DOI", "relationship": "IsRequiredBy", "resourceType": "Online Resource", "seriesName": ""}, {"RelatedIdentifier": "10.7289/V5C8276M", "ResourceTypeGeneral": "Dataset", "name": "ETOPO1 Ice Surface", "relatedIdentifierType": "DOI", "relationship": "IsReferencedBy", "resourceType": "Online Resource", "seriesName": ""}, {"RelatedIdentifier": "10.5281/zenodo.4356161", "ResourceTypeGeneral": "Software", "name": "CEOS/NSIDC Cyclone Detection and Tracking Algorithm", "relatedIdentifierType": "DOI", "relationship": "IsRequiredBy", "resourceType": "Online Resource", "seriesName": ""}], "tags": [{"display_name": "Cyclone", "id": "973ac25c-1a4f-4b79-98b7-1b31db298247", "name": "Cyclone", "state": "active", "vocabulary_id": null}, {"display_name": "Modeling", "id": "9f98c8ac-b485-4348-a112-1a57cc809e6d", "name": "Modeling", "state": "active", "vocabulary_id": null}], "relationships_as_subject": [], "relationships_as_object": []}}