{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:37.905784", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2024-Apr-03_to_2024-Apr-05_271.0_69.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2024040000931}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "April 03 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 05 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 77470.2807732675}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["The Northwestern Passages"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 69.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 271.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 264.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 272.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 65.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.25, 71.0], [-96.03, 71.53], [-95.5, 71.75], [-95.25, 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67.47], [-92.68, 67.82], [-92.75, 67.85], [-93.0, 67.75], [-93.53, 67.97], [-93.68, 68.32], [-93.75, 68.35], [-94.0, 68.25], [-94.53, 68.47], [-94.68, 68.82], [-95.03, 68.97], [-95.18, 69.32], [-95.53, 69.47], [-95.75, 70.0], [-95.62, 70.3], [-96.03, 70.47], [-96.25, 71.0]]]]}, "2024-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.25, 71.0], [-96.03, 71.53], [-95.5, 71.75], [-95.25, 71.65], [-95.0, 71.75], [-94.75, 71.65], [-94.68, 71.68], [-94.53, 72.03], [-94.0, 72.25], [-93.47, 72.03], [-93.32, 71.68], [-92.97, 71.53], [-92.82, 71.18], [-92.47, 71.03], [-92.32, 70.68], [-91.97, 70.53], [-91.82, 70.18], [-91.75, 70.15], [-91.5, 70.25], [-91.25, 70.15], [-91.0, 70.25], [-90.47, 70.03], [-90.32, 69.68], [-90.0, 69.54], [-89.5, 69.75], [-89.25, 69.65], [-89.0, 69.75], [-88.75, 69.65], [-88.5, 69.75], [-87.97, 69.53], [-87.75, 69.0], [-87.85, 68.75], [-87.75, 68.5], [-87.85, 68.25], [-87.82, 68.18], [-87.47, 68.03], [-87.32, 67.68], [-86.97, 67.53], [-86.75, 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anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.831401300763105, 14.696713814060956, 11.35215906478075]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.822717601561407, 2.0314364230626922, 1.7307473917584029]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.360585030055666, 2.670623818534906, 2.1382410705435166]}}