{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:38.135631", "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": "2016-Jan-06_to_2016-Jan-09_276.0_48.0"}, "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": 2016010001336}, "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 06 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 09 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 71649.9908353446}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": []}, "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": 48.0}, "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": 276.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "276.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 274.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 279.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.75, 46.0], [-85.53, 46.53], [-85.0, 46.75], [-84.75, 46.65], [-84.5, 46.75], [-83.97, 46.53], [-83.75, 46.0], [-83.97, 45.47], [-84.5, 45.25], [-84.75, 45.35], [-85.0, 45.25], [-85.53, 45.47], [-85.75, 46.0]]], [[[-86.25, 48.0], [-86.03, 48.53], [-85.5, 48.75], [-85.25, 48.65], [-85.0, 48.75], [-84.75, 48.65], [-84.5, 48.75], [-84.25, 48.65], [-84.0, 48.75], [-83.47, 48.53], [-83.25, 48.0], [-83.47, 47.47], [-84.0, 47.25], [-84.25, 47.35], [-84.5, 47.25], [-84.75, 47.35], [-85.0, 47.25], [-85.25, 47.35], [-85.5, 47.25], [-86.03, 47.47], [-86.25, 48.0]]]]}, "2016-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.03, 45.47], [-86.25, 46.0], [-86.03, 46.53], [-85.5, 46.75], [-85.25, 46.65], [-85.18, 46.68], [-85.15, 46.75], [-85.25, 47.0], [-85.15, 47.25], [-85.18, 47.32], [-85.25, 47.35], [-85.5, 47.25], [-86.03, 47.47], [-86.25, 48.0], [-86.03, 48.53], [-85.5, 48.75], [-85.25, 48.65], [-85.0, 48.75], [-84.75, 48.65], [-84.5, 48.75], [-84.25, 48.65], [-84.0, 48.75], [-83.75, 48.65], [-83.5, 48.75], [-83.25, 48.65], [-83.0, 48.75], [-82.75, 48.65], [-82.5, 48.75], [-81.97, 48.53], [-81.82, 48.18], [-81.75, 48.15], [-81.68, 48.18], [-81.53, 48.53], [-81.0, 48.75], [-80.47, 48.53], [-80.25, 48.0], [-80.35, 47.75], [-80.25, 47.5], [-80.47, 46.97], [-80.82, 46.82], [-80.96, 46.5], [-80.75, 46.0], [-80.97, 45.47], [-81.5, 45.25], [-81.75, 45.35], [-82.0, 45.25], [-82.25, 45.35], [-82.5, 45.25], [-82.75, 45.35], [-83.0, 45.25], [-83.25, 45.35], [-83.5, 45.25], [-84.0, 45.46], [-84.5, 45.25], [-84.75, 45.35], [-85.0, 45.25], [-85.25, 45.35], [-85.5, 45.25], [-86.03, 45.47]]]]}, "2016-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.03, 45.47], [-86.25, 46.0], [-86.03, 46.53], [-85.5, 46.75], [-85.25, 46.65], [-85.18, 46.68], [-85.15, 46.75], [-85.25, 47.0], [-85.15, 47.25], [-85.18, 47.32], [-85.25, 47.35], [-85.5, 47.25], [-86.03, 47.47], [-86.25, 48.0], [-86.03, 48.53], [-85.5, 48.75], [-85.25, 48.65], [-85.0, 48.75], [-84.75, 48.65], [-84.5, 48.75], [-84.25, 48.65], [-84.0, 48.75], [-83.75, 48.65], [-83.5, 48.75], [-83.25, 48.65], [-83.0, 48.75], [-82.75, 48.65], [-82.5, 48.75], [-81.97, 48.53], [-81.82, 48.18], [-81.75, 48.15], [-81.68, 48.18], [-81.53, 48.53], [-81.0, 48.75], [-80.47, 48.53], [-80.25, 48.0], [-80.35, 47.75], [-80.25, 47.5], [-80.47, 46.97], [-80.82, 46.82], [-80.96, 46.5], [-80.75, 46.0], [-80.97, 45.47], [-81.5, 45.25], [-81.75, 45.35], [-82.0, 45.25], [-82.25, 45.35], [-82.5, 45.25], [-82.75, 45.35], [-83.0, 45.25], [-83.25, 45.35], [-83.5, 45.25], [-84.0, 45.46], [-84.5, 45.25], [-84.75, 45.35], [-85.0, 45.25], [-85.25, 45.35], [-85.5, 45.25], [-86.03, 45.47]]]]}, "2016-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.25, 47.0], [-85.15, 47.25], [-85.25, 47.5], [-85.15, 47.75], [-85.25, 48.0], [-85.03, 48.53], [-84.5, 48.75], [-84.25, 48.65], [-84.0, 48.75], [-83.75, 48.65], [-83.5, 48.75], [-83.25, 48.65], [-83.0, 48.75], [-82.75, 48.65], [-82.5, 48.75], [-81.97, 48.53], [-81.82, 48.18], [-81.75, 48.15], 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-0.6380053752311028]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.819824184436925, 1.230707880221587, 2.201600060872238, 1.6877582833979545]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.586553334588928, 10.218177748904054, 10.901949548776926, 10.218356805050274]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [11.245750692070942, 12.15335737227565, 13.384370966465042, 12.032362456945748]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3709563197321872, 1.4150118450661802, 1.51535133166068, 1.4509502946351955]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4368600708961867, 1.5079761128945048, 1.6459840864140576, 1.523939276600443]}}