{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:28.835195", "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": "2014-May-13_to_2014-May-16_283.5_43.5"}, "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": 2014050002002}, "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": "May 13 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 16 2014"}, "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": 58233.456198517466}, "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": 43.5}, "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": 283.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "283.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 281.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 286.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 41.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.03, 42.47], [-79.25, 43.0], [-79.03, 43.53], [-78.5, 43.75], [-78.25, 43.65], [-78.0, 43.75], [-77.75, 43.65], [-77.5, 43.75], [-77.25, 43.65], [-77.18, 43.68], [-77.03, 44.03], [-76.68, 44.18], [-76.53, 44.53], [-76.0, 44.75], [-75.47, 44.53], [-75.25, 44.0], [-75.35, 43.75], [-75.32, 43.68], [-75.25, 43.65], [-75.0, 43.75], [-74.47, 43.53], [-74.25, 43.0], [-74.47, 42.47], [-75.0, 42.25], [-75.25, 42.35], [-75.32, 42.32], [-75.47, 41.97], [-76.0, 41.75], [-76.25, 41.85], [-76.32, 41.82], [-76.47, 41.47], [-77.0, 41.25], [-77.53, 41.47], [-77.68, 41.82], [-78.03, 41.97], [-78.18, 42.32], [-78.25, 42.35], [-78.5, 42.25], [-79.03, 42.47]]]]}, "2014-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.03, 42.47], [-79.25, 43.0], [-79.03, 43.53], [-78.5, 43.75], [-78.25, 43.65], [-78.0, 43.75], [-77.75, 43.65], [-77.5, 43.75], [-77.25, 43.65], [-77.18, 43.68], [-77.03, 44.03], [-76.68, 44.18], [-76.53, 44.53], [-76.0, 44.75], [-75.7, 44.62], [-75.65, 44.75], [-75.75, 45.0], [-75.53, 45.53], [-75.0, 45.75], [-74.75, 45.65], [-74.68, 45.68], [-74.53, 46.03], [-74.0, 46.25], [-73.47, 46.03], [-73.25, 45.5], [-73.35, 45.25], [-73.25, 45.0], [-73.35, 44.75], [-73.25, 44.5], [-73.47, 43.97], [-73.82, 43.82], [-73.85, 43.75], [-73.75, 43.5], [-73.97, 42.97], [-74.32, 42.82], [-74.47, 42.47], [-75.0, 42.25], [-75.25, 42.35], [-75.32, 42.32], [-75.47, 41.97], [-76.0, 41.75], [-76.25, 41.85], [-76.32, 41.82], [-76.47, 41.47], [-77.0, 41.25], [-77.53, 41.47], [-77.68, 41.82], [-78.03, 41.97], [-78.18, 42.32], [-78.25, 42.35], [-78.5, 42.25], [-79.03, 42.47]]]]}, "2014-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.03, 42.47], [-79.25, 43.0], [-79.03, 43.53], [-78.5, 43.75], [-78.25, 43.65], [-78.0, 43.75], [-77.75, 43.65], [-77.5, 43.75], [-77.25, 43.65], [-77.18, 43.68], [-77.03, 44.03], [-76.68, 44.18], [-76.53, 44.53], [-76.0, 44.75], [-75.7, 44.62], [-75.65, 44.75], [-75.75, 45.0], [-75.53, 45.53], [-75.0, 45.75], [-74.75, 45.65], [-74.68, 45.68], [-74.53, 46.03], [-74.0, 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44.5], [-75.65, 44.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.94756500862411}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.713779136212081}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.217190147129145, 19.56564192973798, 21.43044135699199, 18.939471684081695]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.942708003467146, 21.742910991394353, 23.92860508199584, 20.78109196289728]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.254640556600851, 7.08185658615392, 8.95692462043708, 6.859221234756262]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily 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