{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:47.246413", "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": "2022-Apr-22_to_2022-Apr-28_343.5_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": 2022040002310}, "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 22 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2022"}, "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": 75103.99273473794}, "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": ["Gambia", "Guinea-Bissau", "Senegal"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": ["Atlantic Ocean"]}, "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": 343.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 343.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 346.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-15.35, 11.75], [-15.25, 11.5], [-15.47, 10.97], [-16.0, 10.75], [-16.25, 10.85], [-16.5, 10.75], [-17.03, 10.97], [-17.25, 11.5], [-17.15, 11.75], [-17.18, 11.82], [-17.53, 11.97], [-17.75, 12.5], [-17.53, 13.03], [-17.18, 13.18], [-17.15, 13.25], [-17.18, 13.32], [-17.53, 13.47], [-17.75, 14.0], [-17.65, 14.25], [-17.75, 14.5], [-17.53, 15.03], [-17.0, 15.25], [-16.75, 15.15], [-16.5, 15.25], [-16.25, 15.15], [-16.18, 15.18], [-16.03, 15.53], [-15.5, 15.75], [-14.97, 15.53], [-14.82, 15.18], [-14.75, 15.15], [-14.5, 15.25], [-14.25, 15.15], [-14.0, 15.25], [-13.75, 15.15], [-13.5, 15.25], [-12.97, 15.03], [-12.75, 14.5], [-12.85, 14.25], [-12.75, 14.0], [-12.97, 13.47], [-13.5, 13.25], [-13.75, 13.35], [-14.0, 13.25], [-14.25, 13.35], [-14.5, 13.25], [-14.75, 13.35], [-15.0, 13.25], [-15.3, 13.38], [-15.46, 13.0], [-15.25, 12.5], [-15.35, 12.25], [-15.25, 12.0], [-15.35, 11.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the 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