{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:30.375420", "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": "2022-Jun-15_to_2022-Jun-20_304.0_46.5"}, "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": 2022060002111}, "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": "June 15 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 20 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 74580.96797679408}, "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": ["E.North-America", "N.Atlantic-Ocean"]}, "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": ["Gulf of St. Lawrence", "North Atlantic Ocean"]}, "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": 46.5}, "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": 304.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "304.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 301.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.75}, "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": {"2022-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.53, 48.53], [-58.0, 48.75], [-57.75, 48.65], [-57.5, 48.75], [-56.97, 48.53], [-56.82, 48.18], [-56.75, 48.15], [-56.5, 48.25], [-55.97, 48.03], [-55.75, 47.5], [-55.97, 46.97], [-56.5, 46.75], [-56.75, 46.85], [-57.0, 46.75], [-57.25, 46.85], [-57.5, 46.75], [-57.75, 46.85], [-58.0, 46.75], [-58.53, 46.97], [-58.75, 47.5], [-58.65, 47.75], [-58.75, 48.0], [-58.53, 48.53]]]]}, "2022-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.53, 48.53], [-58.0, 48.75], [-57.75, 48.65], [-57.5, 48.75], [-56.97, 48.53], [-56.82, 48.18], [-56.75, 48.15], [-56.5, 48.25], [-55.97, 48.03], [-55.75, 47.5], [-55.87, 47.2], [-55.47, 47.03], [-55.25, 46.5], [-55.47, 45.97], [-56.0, 45.75], [-56.53, 45.97], [-56.75, 46.5], [-56.62, 46.8], [-56.75, 46.85], [-57.0, 46.75], [-57.25, 46.85], [-57.5, 46.75], [-57.75, 46.85], [-58.0, 46.75], [-58.53, 46.97], [-58.75, 47.5], [-58.65, 47.75], [-58.75, 48.0], [-58.53, 48.53]]]]}, "2022-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.53, 48.53], [-58.0, 48.75], [-57.75, 48.65], [-57.5, 48.75], [-56.97, 48.53], [-56.82, 48.18], [-56.75, 48.15], [-56.5, 48.25], [-56.25, 48.15], [-56.0, 48.25], [-55.47, 48.03], [-55.32, 47.68], [-55.25, 47.65], [-55.0, 47.75], [-54.47, 47.53], [-54.25, 47.0], [-54.35, 46.75], [-54.25, 46.5], [-54.35, 46.25], [-54.25, 46.0], [-54.47, 45.47], [-54.82, 45.32], [-54.97, 44.97], [-55.5, 44.75], [-56.03, 44.97], [-56.18, 45.32], [-56.25, 45.35], [-56.5, 45.25], [-56.75, 45.35], [-57.0, 45.25], [-57.53, 45.47], [-57.75, 46.0], [-57.65, 46.25], [-57.75, 46.5], [-57.62, 46.8], [-57.75, 46.85], [-58.0, 46.75], [-58.53, 46.97], [-58.75, 47.5], [-58.65, 47.75], [-58.75, 48.0], [-58.53, 48.53]]]]}, "2022-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.53, 46.97], [-58.75, 47.5], [-58.53, 48.03], [-58.0, 48.25], [-57.75, 48.15], [-57.5, 48.25], [-57.0, 48.04], [-56.5, 48.25], [-56.25, 48.15], [-56.0, 48.25], [-55.47, 48.03], [-55.32, 47.68], [-55.25, 47.65], [-55.0, 47.75], [-54.75, 47.65], [-54.5, 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anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.49535244361464, 3.4655723062248285, 2.658122708363692, 2.893766302181753, 4.0020949121462515, 3.1557999773090937]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.546458820501243, 5.487163395320749, 4.575328220856363, 3.583164856322469, 4.733595672458819, 3.8226551076556348]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0713454137962977, 2.0442139048128003, 1.8687436601091767, 2.094144516633538, 2.818612694615518, 2.1556247374301383]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.297975433557464, 2.5541549158560053, 2.3062776706831873, 2.8122960176680856, 3.345822309317751, 2.5971640778484772]}}