{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:58.564932", "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-May-23_to_2022-May-28_42.5_14.5"}, "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": 2022050000860}, "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 23 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 28 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 77507.40132726682}, "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": ["Eritrea", "Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "N.Eastern-Africa", "Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Asia"]}, "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": ["Red Sea"]}, "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": 14.5}, "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": 42.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "42.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 40.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 43.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.0, 15.25], [43.53, 15.03], [43.75, 14.5], [43.53, 13.97], [43.0, 13.75], [42.47, 13.97], [42.25, 14.5], [42.47, 15.03], [43.0, 15.25]]]]}, "2022-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.35, 15.25], [41.25, 15.5], [41.47, 16.03], [42.0, 16.25], [42.25, 16.15], [42.5, 16.25], [43.03, 16.03], [43.18, 15.68], [43.53, 15.53], [43.75, 15.0], [43.65, 14.75], [43.75, 14.5], [43.65, 14.25], [43.75, 14.0], [43.65, 13.75], [43.75, 13.5], [43.53, 12.97], [43.0, 12.75], [42.47, 12.97], [42.32, 13.32], [41.97, 13.47], [41.82, 13.82], [41.47, 13.97], [41.25, 14.5], [41.35, 14.75], [41.25, 15.0], [41.35, 15.25]]]]}, "2022-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.85, 15.25], [39.75, 15.5], [39.85, 15.75], [39.75, 16.0], [39.97, 16.53], [40.5, 16.75], [40.75, 16.65], [40.82, 16.68], [40.85, 16.75], [40.75, 17.0], [40.97, 17.53], [41.5, 17.75], [41.75, 17.65], [42.0, 17.75], [42.53, 17.53], [42.75, 17.0], [42.65, 16.75], [42.75, 16.5], [42.65, 16.25], [42.68, 16.18], [43.03, 16.03], [43.18, 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