{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:18.873263", "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": "2026-Apr-01_to_2026-Apr-07_42.0_18.0"}, "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": 2026040000986}, "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": "April 01 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 07 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 53272.784283275265}, "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": ["Saudi Arabia", "Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Red Sea"]}, "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": 18.0}, "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": 42.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "42.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 41.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 45.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.47, 15.47], [43.25, 16.0], [43.47, 16.53], [44.0, 16.75], 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16.5], [40.85, 16.75], [40.75, 17.0], [40.96, 17.5]]]]}, "2026-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.0, 16.75], [45.25, 16.65], [45.5, 16.75], [46.03, 16.53], [46.25, 16.0], [46.03, 15.47], [45.68, 15.32], [45.53, 14.97], [45.0, 14.75], [44.75, 14.85], [44.5, 14.75], [43.97, 14.97], [43.75, 15.5], [43.97, 16.03], [44.32, 16.18], [44.47, 16.53], [45.0, 16.75]]]]}, "2026-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.0, 16.75], [45.25, 16.65], [45.5, 16.75], [46.03, 16.53], [46.25, 16.0], [46.03, 15.47], [45.68, 15.32], [45.53, 14.97], [45.0, 14.75], [44.75, 14.85], [44.5, 14.75], [43.97, 14.97], [43.75, 15.5], [43.97, 16.03], [44.32, 16.18], [44.47, 16.53], [45.0, 16.75]]]]}, "2026-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.0, 16.75], [45.25, 16.65], [45.5, 16.75], [46.03, 16.53], [46.25, 16.0], [46.03, 15.47], [45.68, 15.32], [45.53, 14.97], [45.0, 14.75], [44.75, 14.85], [44.5, 14.75], [43.97, 14.97], [43.75, 15.5], [43.97, 16.03], [44.32, 16.18], [44.47, 16.53], [45.0, 16.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.051831027299727}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0939551924832935}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.370149230957054, 29.631406220935617, 29.920439838227765, 29.496304539271875, 27.27950820922854, 28.00553410847982, 27.311545308430993]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.868562316894554, 32.557850138346396, 32.7250750223796, 32.12349599202474, 29.512194569905603, 30.40470403035482, 29.808493550618493]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m 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