{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:10.704655", "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": "2024-Sep-20_to_2024-Sep-25_275.5_34.5"}, "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": 2024090001958}, "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 20 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 25 2024"}, "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": 150643.39218552}, "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": ["United States"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 34.5}, "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": 275.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "275.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 273.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 278.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-83.5, 32.25], [-83.75, 32.35], [-84.0, 32.25], [-84.25, 32.35], [-84.5, 32.25], [-84.75, 32.35], [-85.0, 32.25], 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"value": ["E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.14999999999998, 35.25], [-86.25, 35.5], [-86.02999999999997, 36.03], [-85.68, 36.18], [-85.52999999999997, 36.53], [-85.18, 36.68], [-85.02999999999997, 37.03], [-84.5, 37.25], [-83.97000000000003, 37.03], [-83.75, 36.5], [-83.85000000000002, 36.25], [-83.75, 36.0], [-83.93, 35.57], [-83.5, 35.75], [-82.97000000000003, 35.53], [-82.75, 35.0], [-82.97000000000003, 34.47], [-83.32, 34.32], [-83.47000000000003, 33.97], [-84.0, 33.75], [-84.25, 33.85], [-84.5, 33.75], [-84.75, 33.85], [-85.0, 33.75], [-85.25, 33.85], [-85.5, 33.75], [-85.75, 33.85], [-86.0, 33.75], [-86.52999999999997, 33.97], [-86.75, 34.5], [-86.52999999999997, 35.03], [-86.18, 35.18], [-86.14999999999998, 35.25]]]]}, "2024-09-21T11:30:00.000000000": {"type": "MultiPolygon", 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26.211286514106916, 25.961299857115137, 26.46313120524087]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.37716954549154, 27.088829294840536, 27.6185292561849, 28.70035069783529, 28.50309015909835, 26.88227996826174]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.089181554001834, 4.477242162005922, 4.720798674527124, 5.021748030866159, 4.832516242256555, 3.96454187017801]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.669433002275241, 6.180140543459174, 5.832790904539422, 6.95951297514074, 6.074766714338978, 4.25308563944327]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4385833939760422, 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