{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:22.376690", "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-Mar-07_to_2026-Mar-10_358.5_13.5"}, "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": 2026030001429}, "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": "March 07 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 10 2026"}, "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": 119882.2830452384}, "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": ["Burkina Faso", "Mali"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": []}, "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": 13.5}, "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": 358.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "358.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 355.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 360.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.75, 15.5], [-3.53, 16.03], [-3.18, 16.18], [-3.03, 16.53], [-2.5, 16.75], [-2.25, 16.65], [-2.0, 16.75], [-1.47, 16.53], [-1.25, 16.0], [-1.35, 15.75], [-1.32, 15.68], [-1.25, 15.65], [-1.0, 15.75], [-0.47, 15.53], [-0.32, 15.18], [0.03, 15.03], [0.25, 14.5], [0.15, 14.25], [0.25, 14.0], [0.15, 13.75], [0.18, 13.68], [0.25, 13.65], [0.5, 13.75], [1.03, 13.53], [1.25, 13.0], [1.03, 12.47], [0.5, 12.25], [0.25, 12.35], [0.0, 12.25], [-0.25, 12.35], [-0.5, 12.25], [-0.75, 12.35], [-1.0, 12.25], [-1.25, 12.35], [-1.5, 12.25], [-2.03, 12.47], [-2.18, 12.82], [-2.53, 12.97], [-2.75, 13.5], [-2.65, 13.75], [-2.75, 14.0], [-2.65, 14.25], [-2.68, 14.32], [-2.75, 14.35], [-2.82, 14.32], [-2.97, 13.97], [-3.5, 13.75], [-4.03, 13.97], [-4.25, 14.5], [-4.03, 15.03], [-3.68, 15.18], [-3.65, 15.25], [-3.75, 15.5]]]]}, "2026-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.53, 14.53], [-4.18, 14.68], [-4.03, 15.03], [-3.68, 15.18], [-3.65, 15.25], [-3.75, 15.5], [-3.53, 16.03], [-3.18, 16.18], [-3.03, 16.53], [-2.5, 16.75], [-2.25, 16.65], [-2.0, 16.75], [-1.47, 16.53], [-1.25, 16.0], [-1.35, 15.75], [-1.32, 15.68], [-1.25, 15.65], [-1.0, 15.75], [-0.75, 15.65], [-0.5, 15.75], [0.03, 15.53], [0.25, 15.0], [0.15, 14.75], [0.25, 14.5], [0.15, 14.25], [0.25, 14.0], [0.15, 13.75], [0.18, 13.68], [0.25, 13.65], [0.5, 13.75], [1.03, 13.53], [1.25, 13.0], [1.03, 12.47], [0.5, 12.25], [0.25, 12.35], [0.0, 12.25], [-0.25, 12.35], [-0.32, 12.32], [-0.47, 11.97], [-1.0, 11.75], [-1.25, 11.85], [-1.5, 11.75], [-1.75, 11.85], [-2.0, 11.75], [-2.53, 11.97], [-2.75, 12.5], [-2.62, 12.8], [-3.03, 12.97], [-3.18, 13.32], [-3.25, 13.35], [-3.32, 13.32], [-3.47, 12.97], [-4.0, 12.75], [-4.53, 12.97], [-4.75, 13.5], [-4.65, 13.75], [-4.75, 14.0], [-4.53, 14.53]]]]}, "2026-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.53, 14.53], [-4.18, 14.68], [-4.03, 15.03], [-3.68, 15.18], [-3.65, 15.25], [-3.75, 15.5], [-3.53, 16.03], [-3.18, 16.18], [-3.03, 16.53], [-2.5, 16.75], [-2.25, 16.65], [-2.0, 16.75], [-1.47, 16.53], [-1.25, 16.0], [-1.35, 15.75], [-1.32, 15.68], [-1.25, 15.65], [-1.0, 15.75], [-0.75, 15.65], [-0.5, 15.75], [0.03, 15.53], [0.25, 15.0], [0.15, 14.75], [0.25, 14.5], [0.15, 14.25], [0.25, 14.0], [0.15, 13.75], [0.18, 13.68], [0.25, 13.65], [0.5, 13.75], [1.03, 13.53], [1.25, 13.0], [1.03, 12.47], [0.5, 12.25], [0.25, 12.35], [0.0, 12.25], [-0.25, 12.35], [-0.32, 12.32], [-0.47, 11.97], [-1.0, 11.75], [-1.25, 11.85], [-1.5, 11.75], [-1.75, 11.85], [-2.0, 11.75], [-2.53, 11.97], [-2.75, 12.5], [-2.62, 12.8], [-3.03, 12.97], [-3.18, 13.32], [-3.25, 13.35], [-3.32, 13.32], [-3.47, 12.97], [-4.0, 12.75], [-4.53, 12.97], [-4.75, 13.5], [-4.65, 13.75], [-4.75, 14.0], [-4.53, 14.53]]]]}, "2026-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.53, 14.53], [-4.0, 14.75], [-3.75, 14.65], [-3.68, 14.68], [-3.53, 15.03], [-3.0, 15.25], [-2.75, 15.15], [-2.68, 15.18], [-2.53, 15.53], [-2.0, 15.75], [-1.75, 15.65], [-1.5, 15.75], [-1.25, 15.65], [-1.0, 15.75], 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33.2021207173666, 33.2935460408529, 32.97420242134183]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.88191757202151, 34.64238764444991, 34.57696685791018, 34.20135142008468]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.897861254505173, 3.9093467616165185, 3.9261585215495787, 3.2485141413849052]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.593700618128025, 5.17884343503448, 4.857106008919914, 3.9615039458129786]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5551745044827874, 1.5774733363723668, 1.6147167788567984, 1.391389680027943]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8054369984642644, 2.0357241526642156, 1.9268517895970818, 1.6294440747625787]}}