{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:33.182962", "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": "2012-Sep-29_to_2012-Oct-01_266.5_56.0"}, "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": 2012090002839}, "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": "September 29 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 01 2012"}, "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": 79491.53659117647}, "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": []}, "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": 56.0}, "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": 266.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 265.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 270.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.25, 53.5], [-95.03, 54.03], [-94.5, 54.25], [-94.25, 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[[-93.25, 54.15], [-93.18, 54.18], [-93.15, 54.25], [-93.18, 54.32], [-93.25, 54.35], [-93.5, 54.25], [-93.25, 54.15]]]]}, "2012-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.25, 53.5], [-95.03, 54.03], [-94.5, 54.25], [-94.25, 54.15], [-94.0, 54.25], [-93.75, 54.15], [-93.5, 54.25], [-94.03, 54.47], [-94.18, 54.82], [-94.53, 54.97], [-94.75, 55.5], [-94.53, 56.03], [-94.18, 56.18], [-94.03, 56.53], [-93.5, 56.75], [-93.25, 56.65], [-93.0, 56.75], [-92.75, 56.65], [-92.5, 56.75], [-91.97, 56.53], [-91.82, 56.18], [-91.75, 56.15], [-91.5, 56.25], [-90.97, 56.03], [-90.82, 55.68], [-90.75, 55.65], [-90.5, 55.75], [-90.25, 55.65], [-90.0, 55.75], [-89.47, 55.53], [-89.32, 55.18], [-88.97, 55.03], [-88.75, 54.5], [-88.97, 53.97], [-89.5, 53.75], [-89.75, 53.85], [-90.0, 53.75], [-90.25, 53.85], [-90.5, 53.75], [-90.75, 53.85], [-90.82, 53.82], [-90.85, 53.75], [-90.75, 53.5], [-90.97, 52.97], [-91.32, 52.82], [-91.47, 52.47], [-91.82, 52.32], [-91.97, 51.97], [-92.5, 51.75], [-92.75, 51.85], [-93.0, 51.75], [-93.25, 51.85], [-93.32, 51.82], [-93.47, 51.47], [-94.0, 51.25], [-94.53, 51.47], [-94.75, 52.0], [-94.65, 52.25], [-94.75, 52.5], [-94.65, 52.75], [-94.68, 52.82], [-95.03, 52.97], [-95.25, 53.5]], [[-93.25, 54.15], [-93.18, 54.18], [-93.15, 54.25], [-93.18, 54.32], [-93.25, 54.35], [-93.5, 54.25], [-93.25, 54.15]]]]}, "2012-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.25, 53.5], [-95.03, 54.03], [-94.5, 54.25], [-94.25, 54.15], [-94.0, 54.25], [-93.75, 54.15], [-93.5, 54.25], [-94.03, 54.47], [-94.18, 54.82], [-94.53, 54.97], [-94.75, 55.5], [-94.53, 56.03], [-94.18, 56.18], [-94.03, 56.53], [-93.5, 56.75], [-93.25, 56.65], [-93.0, 56.75], [-92.75, 56.65], [-92.5, 56.75], [-91.97, 56.53], [-91.82, 56.18], [-91.75, 56.15], [-91.5, 56.25], [-90.97, 56.03], [-90.82, 55.68], [-90.75, 55.65], [-90.5, 55.75], [-90.25, 55.65], [-90.0, 55.75], [-89.47, 55.53], [-89.32, 55.18], [-88.97, 55.03], [-88.75, 54.5], 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t2m.", "value": [13.40637629357326, 16.81655921557359, 11.521379455576039]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.790625449057814, 18.17589521808725, 13.206555584588557]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.2632223375148754, 11.27833285540195, 6.377218371230227]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.551283969107828, 12.40050163312901, 7.484281291713955]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7281647155523856, 2.8386865759151125, 1.62772661906918]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.268391006232801, 3.09074108524094, 1.8048277073693195]}}