{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:28.467798", "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": "2025-Jan-22_to_2025-Jan-24_271.5_66.0"}, "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": 2025010002057}, "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": "January 22 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 24 2025"}, "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": 74310.7830223229}, "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": ["Hudson Bay"]}, "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": 66.0}, "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": 271.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 265.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 275.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 63.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 66.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.75, 65.5], [-94.53, 66.03], [-94.0, 66.25], [-93.75, 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63.75], [-90.25, 63.85], [-90.32, 63.82], [-90.47, 63.47], [-91.0, 63.25], [-91.53, 63.47], [-91.68, 63.82], [-91.75, 63.85], [-92.0, 63.75], [-92.25, 63.85], [-92.5, 63.75], [-93.03, 63.97], [-93.18, 64.32], [-93.25, 64.35], [-93.5, 64.25], [-94.03, 64.47], [-94.18, 64.82], [-94.53, 64.97], [-94.75, 65.5]]]]}, "2025-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.75, 65.5], [-94.53, 66.03], [-94.0, 66.25], [-93.75, 66.15], [-93.5, 66.25], [-93.25, 66.15], [-93.18, 66.18], [-93.03, 66.53], [-92.5, 66.75], [-91.97, 66.53], [-91.82, 66.18], [-91.75, 66.15], [-91.5, 66.25], [-91.2, 66.13], [-91.15, 66.25], [-91.25, 66.5], [-91.03, 67.03], [-90.5, 67.25], [-90.25, 67.15], [-90.0, 67.25], [-89.47, 67.03], [-89.32, 66.68], [-89.25, 66.65], [-89.0, 66.75], [-88.75, 66.65], [-88.5, 66.75], [-87.97, 66.53], [-87.82, 66.18], [-87.75, 66.15], [-87.5, 66.25], [-86.97, 66.03], [-86.82, 65.68], [-86.75, 65.65], [-86.5, 65.75], [-86.25, 65.65], [-86.0, 65.75], [-85.75, 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[10.221504020021406, 11.972940589727138, 10.56272615065751]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [13.482746136541067, 14.703087920172607, 12.223547872935256]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.690479404327766, 1.9876413013940226, 1.7482766771572853]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2366564177946175, 2.478368885984681, 1.969338731399169]}}