{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:59.144976", "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": "2023-Aug-13_to_2023-Aug-17_25.0_-26.5"}, "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": 2023080001704}, "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": "August 13 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 17 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 70537.81388703341}, "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": ["Botswana", "South Africa"]}, "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": []}, "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": -26.5}, "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": 25.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "25.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 22.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 26.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[25.0, -27.25], [24.47, -27.03], [24.25, -26.5], [24.35, -26.25], [24.25, -26.0], [24.35, -25.75], [24.32, -25.68], [23.97, 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"Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.75, -25.0], [23.97, -24.47], [24.5, -24.25], [24.75, -24.35], [25.0, -24.25], [25.53, -24.47], [25.68, -24.82], [25.75, -24.85], [26.0, -24.75], [26.53, -24.97], [26.75, -25.5], [26.65, -25.75], [26.75, -26.0], [26.53, -26.53], [26.0, -26.75], [25.75, -26.65], [25.68, -26.68], [25.53, -27.03], [25.0, -27.25], [24.47, -27.03], [24.25, -26.5], [24.35, -26.25], [24.25, -26.0], [24.35, -25.75], [24.32, -25.68], [23.97, -25.53], [23.75, -25.0]]], [[[21.97, -21.47], [22.5, -21.25], [23.03, -21.47], [23.25, -22.0], [23.04, -22.5], [23.25, -23.0], [23.03, -23.53], [22.5, -23.75], [21.97, -23.53], [21.75, -23.0], [21.96, -22.5], [21.75, -22.0], [21.97, -21.47]]]]}, "2023-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.47, -22.03], [21.25, -21.5], [21.47, -20.97], [22.0, -20.75], 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