{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:09:04.338754", "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": "2025-Nov-23_to_2025-Nov-25_348.0_26.0"}, "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": 2025110002280}, "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": "November 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 25 2025"}, "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": 153143.84375010093}, "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": ["Mauritania", "Morocco"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa"]}, "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": ["Gaat Udei Seita"]}, "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": 26.0}, "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": 348.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 346.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-14.75, 25.0], [-14.65, 25.25], [-14.75, 25.5], [-14.65, 25.75], [-14.75, 26.0], [-14.53, 26.53], [-14.0, 26.75], [-13.75, 26.65], [-13.5, 26.75], [-13.25, 26.65], [-13.0, 26.75], [-12.75, 26.65], [-12.5, 26.75], [-12.25, 26.65], [-12.0, 26.75], [-11.75, 26.65], [-11.68, 26.68], [-11.53, 27.03], [-11.18, 27.18], [-11.15, 27.25], [-11.25, 27.5], [-11.03, 28.03], [-10.5, 28.25], [-10.25, 28.15], [-10.18, 28.18], [-10.03, 28.53], [-9.68, 28.68], [-9.65, 28.75], [-9.75, 29.0], [-9.53, 29.53], [-9.0, 29.75], [-8.47, 29.53], [-8.25, 29.0], [-8.35, 28.75], [-8.25, 28.5], [-8.35, 28.25], [-8.25, 28.0], [-8.35, 27.75], [-8.25, 27.5], [-8.47, 26.97], [-8.82, 26.82], [-8.85, 26.75], [-8.75, 26.5], [-8.97, 25.97], [-9.32, 25.82], [-9.35, 25.75], [-9.25, 25.5], [-9.35, 25.25], [-9.25, 25.0], [-9.47, 24.47], [-9.87, 24.3], [-9.75, 24.0], [-9.97, 23.47], [-10.5, 23.25], [-11.03, 23.47], [-11.18, 23.82], [-11.25, 23.85], [-11.5, 23.75], [-11.75, 23.85], [-11.82, 23.82], [-11.97, 23.47], [-12.5, 23.25], [-12.75, 23.35], [-12.82, 23.32], [-12.97, 22.97], [-13.5, 22.75], [-14.03, 22.97], [-14.18, 23.32], [-14.53, 23.47], [-14.75, 24.0], [-14.65, 24.25], [-14.75, 24.5], [-14.65, 24.75], [-14.75, 25.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.75, 24.5], [-14.649999999999977, 24.75], [-14.75, 25.0], [-14.649999999999977, 25.25], [-14.75, 25.5], [-14.649999999999977, 25.75], [-14.75, 26.0], [-14.529999999999973, 26.53], [-14.0, 26.75], [-13.75, 26.65], [-13.5, 26.75], [-13.25, 26.65], [-13.0, 26.75], [-12.75, 26.65], [-12.5, 26.75], [-12.25, 26.65], [-12.0, 26.75], [-11.75, 26.65], [-11.680000000000007, 26.68], [-11.529999999999973, 27.03], [-11.180000000000007, 27.18], [-11.149999999999977, 27.25], [-11.25, 27.5], [-11.029999999999973, 28.03], [-10.5, 28.25], [-10.25, 28.15], [-10.180000000000007, 28.18], [-10.029999999999973, 28.53], [-9.680000000000007, 28.68], [-9.649999999999977, 28.75], [-9.75, 29.0], [-9.529999999999973, 29.53], [-9.0, 29.75], [-8.470000000000027, 29.53], [-8.25, 29.0], [-8.350000000000023, 28.75], [-8.25, 28.5], [-8.350000000000023, 28.25], [-8.25, 28.0], [-8.350000000000023, 27.75], [-8.25, 27.5], [-8.470000000000027, 26.97], [-8.819999999999993, 26.82], [-8.850000000000023, 26.75], [-8.75, 26.5], [-8.970000000000027, 25.97], [-9.319999999999993, 25.82], [-9.350000000000023, 25.75], [-9.25, 25.5], [-9.350000000000023, 25.25], [-9.25, 25.0], [-9.470000000000027, 24.47], [-9.870000000000005, 24.3], [-9.75, 24.0], [-9.970000000000027, 23.47], [-10.5, 23.25], [-11.029999999999973, 23.47], [-11.180000000000007, 23.82], [-11.25, 23.85], [-11.5, 23.75], [-11.75, 23.85], [-11.819999999999993, 23.82], [-11.970000000000027, 23.47], [-12.5, 23.25], [-12.75, 23.35], [-12.819999999999993, 23.32], [-12.970000000000027, 22.97], [-13.5, 22.75], [-14.029999999999973, 22.97], [-14.180000000000007, 23.32], [-14.529999999999973, 23.47], [-14.75, 24.0], [-14.649999999999977, 24.25], [-14.75, 24.5]]]]}, "2025-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.75, 24.5], [-14.649999999999977, 24.75], [-14.75, 25.0], [-14.649999999999977, 25.25], [-14.75, 25.5], [-14.649999999999977, 25.75], [-14.75, 26.0], [-14.529999999999973, 26.53], [-14.0, 26.75], [-13.75, 26.65], [-13.5, 26.75], [-13.25, 26.65], [-13.0, 26.75], [-12.75, 26.65], [-12.5, 26.75], [-12.25, 26.65], [-12.0, 26.75], [-11.75, 26.65], [-11.680000000000007, 26.68], [-11.529999999999973, 27.03], [-11.180000000000007, 27.18], [-11.149999999999977, 27.25], [-11.25, 27.5], [-11.029999999999973, 28.03], [-10.5, 28.25], [-10.25, 28.15], [-10.180000000000007, 28.18], [-10.029999999999973, 28.53], [-9.680000000000007, 28.68], [-9.649999999999977, 28.75], [-9.75, 29.0], [-9.529999999999973, 29.53], [-9.0, 29.75], [-8.470000000000027, 29.53], [-8.25, 29.0], [-8.350000000000023, 28.75], 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[-14.649999999999977, 24.75], [-14.75, 25.0], [-14.649999999999977, 25.25], [-14.75, 25.5], [-14.649999999999977, 25.75], [-14.75, 26.0], [-14.529999999999973, 26.53], [-14.0, 26.75], [-13.75, 26.65], [-13.5, 26.75], [-13.25, 26.65], [-13.0, 26.75], [-12.75, 26.65], [-12.5, 26.75], [-12.25, 26.65], [-12.0, 26.75], [-11.75, 26.65], [-11.680000000000007, 26.68], [-11.529999999999973, 27.03], [-11.180000000000007, 27.18], [-11.149999999999977, 27.25], [-11.25, 27.5], [-11.029999999999973, 28.03], [-10.5, 28.25], [-10.25, 28.15], [-10.180000000000007, 28.18], [-10.029999999999973, 28.53], [-9.680000000000007, 28.68], [-9.649999999999977, 28.75], [-9.75, 29.0], [-9.529999999999973, 29.53], [-9.0, 29.75], [-8.470000000000027, 29.53], [-8.25, 29.0], [-8.350000000000023, 28.75], [-8.25, 28.5], [-8.350000000000023, 28.25], [-8.25, 28.0], [-8.350000000000023, 27.75], [-8.25, 27.5], [-8.470000000000027, 26.97], [-8.819999999999993, 26.82], [-8.850000000000023, 26.75], [-8.75, 26.5], 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{"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.92559442231152, 22.160397061434708, 21.60486755371096]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.839838918050134, 24.20898844401046, 23.148243204752646]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.694667776597642, 4.164412832977501, 3.7365373570942437]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.930641839435964, 5.510511839363801, 4.415985976456]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0077094312521457, 1.8401401780465279, 1.7045592272832752]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4522289905614936, 2.5266982506701807, 2.0659354128369096]}}