{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:17.579963", "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": "2011-Aug-27_to_2011-Aug-30_304.5_48.5"}, "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": 2011080003055}, "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": "August 27 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 30 2011"}, "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": 133608.16395368398}, "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", "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": ["Gulf of St. Lawrence", "Labrador Sea", "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": 48.5}, "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": 304.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "304.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 303.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 310.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.5, 49.25], [-54.97, 49.03], [-54.75, 48.5], [-54.97, 47.97], [-55.5, 47.75], [-56.03, 47.97], [-56.25, 48.5], [-56.03, 49.03], [-55.5, 49.25]]]]}, "2011-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.75, 50.5], [-56.53, 51.03], [-56.18, 51.18], [-56.15, 51.25], [-56.25, 51.5], [-56.15, 51.75], [-56.25, 52.0], [-56.03, 52.53], [-55.68, 52.68], [-55.53, 53.03], [-55.0, 53.25], [-54.75, 53.15], [-54.68, 53.18], [-54.53, 53.53], [-54.0, 53.75], [-53.75, 53.65], [-53.5, 53.75], [-53.25, 53.65], [-53.0, 53.75], [-52.75, 53.65], [-52.5, 53.75], [-52.25, 53.65], [-52.0, 53.75], [-51.47, 53.53], [-51.32, 53.18], [-50.97, 53.03], [-50.82, 52.68], [-50.75, 52.65], [-50.5, 52.75], [-49.97, 52.53], [-49.82, 52.18], [-49.75, 52.15], [-49.5, 52.25], [-48.97, 52.03], [-48.75, 51.5], [-48.85, 51.25], [-48.75, 51.0], [-48.97, 50.47], [-49.5, 50.25], [-49.75, 50.35], [-49.82, 50.32], [-49.97, 49.97], [-50.5, 49.75], [-50.75, 49.85], [-51.0, 49.75], [-51.53, 49.97], [-51.68, 50.32], [-51.75, 50.35], [-52.0, 50.25], [-52.3, 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