{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-28 16:19:51.017151", "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-May-07_to_2026-May-09_26.5_16.0"}, "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": 2026050000250}, "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": "May 07 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 09 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 101114.9719000972}, "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": ["Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "N.Eastern-Africa", "Sahara"]}, "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": 16.0}, "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": 26.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "26.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 23.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 28.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.47, 18.03], [24.0, 18.25], [24.53, 18.03], [24.75, 17.5], 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"2026-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.47, 18.03], [24.0, 18.25], [24.53, 18.03], [24.75, 17.5], [24.65, 17.25], [24.68, 17.18], [24.75, 17.15], [24.82, 17.18], [24.97, 17.53], [25.5, 17.75], [25.75, 17.65], [26.0, 17.75], [26.25, 17.65], [26.5, 17.75], [26.75, 17.65], [27.0, 17.75], [27.53, 17.53], [27.75, 17.0], [27.65, 16.75], [27.68, 16.68], [27.75, 16.65], [28.0, 16.75], [28.53, 16.53], [28.68, 16.18], [29.03, 16.03], [29.25, 15.5], [29.03, 14.97], [28.68, 14.82], [28.65, 14.75], [28.75, 14.5], [28.53, 13.97], [28.18, 13.82], [28.03, 13.47], [27.5, 13.25], [27.25, 13.35], [27.0, 13.25], [26.75, 13.35], [26.5, 13.25], [25.97, 13.47], [25.75, 14.0], [25.97, 14.53], [26.32, 14.68], [26.35, 14.75], [26.32, 14.82], [26.25, 14.85], [26.0, 14.75], [25.47, 14.97], [25.25, 15.5], [25.35, 15.75], [25.32, 15.82], [25.25, 15.85], [25.18, 15.82], [25.03, 15.47], [24.5, 15.25], [24.25, 15.35], [24.0, 15.25], [23.47, 15.47], [23.25, 16.0], [23.46, 16.5], 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