{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:45.485109", "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-Jul-23_to_2025-Jul-29_27.0_-6.0"}, "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": 2025070002666}, "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": "July 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 29 2025"}, "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": 116770.42591645395}, "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": ["Congo, The Democratic Republic of the"]}, "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": -6.0}, "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": 27.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 23.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[25.3, -5.37], [25.47, -4.97], [26.0, -4.75], [26.25, -4.85], [26.5, -4.75], [26.75, -4.85], [26.82, -4.82], [26.85, -4.75], 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"polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.25, -4.5], [27.47, -3.97], [28.0, -3.75], [28.53, -3.97], [28.75, -4.5], [28.65, -4.75], [28.68, -4.82], [28.75, -4.85], [29.0, -4.75], [29.53, -4.97], [29.75, -5.5], [29.65, -5.75], [29.75, -6.0], [29.53, -6.53], [29.0, -6.75], [28.75, -6.65], [28.5, -6.75], [27.97, -6.53], [27.75, -6.0], [27.85, -5.75], [27.82, -5.68], [27.47, -5.53], [27.25, -5.0], [27.35, -4.75], [27.25, -4.5]]]]}, "2025-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.25, -6.0], [25.47, -5.47], [25.82, -5.32], [25.97, -4.97], [26.5, -4.75], [26.75, -4.85], [26.82, -4.82], [26.97, -4.47], [27.32, -4.32], [27.47, -3.97], [28.0, -3.75], [28.53, -3.97], [28.75, -4.5], [28.65, -4.75], [28.68, -4.82], [28.75, -4.85], [29.0, -4.75], [29.53, -4.97], [29.75, -5.5], [29.65, -5.75], [29.75, 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