{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:53:39.039800", "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-Jun-19_to_2026-Jun-24_39.0_16.5"}, "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": 2026060000621}, "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": "June 19 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 24 2026"}, "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": 65116.08702778159}, "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", "Sudan"]}, "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"]}, "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": 16.5}, "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": 39.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "39.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.5, 18.75], [38.03, 18.53], [38.25, 18.0], [38.03, 17.47], [37.5, 17.25], [36.97, 17.47], [36.75, 18.0], [36.97, 18.53], [37.5, 18.75]]]]}, "2026-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, 15.75], [38.47, 15.97], [38.25, 16.5], [38.47, 17.03], [39.0, 17.25], [39.53, 17.03], [39.75, 16.5], [39.57, 16.07], [40.0, 16.25], [40.53, 16.03], [40.75, 15.5], [40.65, 15.25], [40.75, 15.0], [40.53, 14.47], [40.0, 14.25], [39.47, 14.47], [39.25, 15.0], [39.35, 15.25], [39.25, 15.5], [39.43, 15.93], [39.0, 15.75]]], [[[37.5, 18.75], [37.75, 18.65], [38.0, 18.75], [38.53, 18.53], [38.75, 18.0], [38.53, 17.47], [38.18, 17.32], [38.03, 16.97], [37.5, 16.75], [36.97, 16.97], [36.75, 17.5], [36.85, 17.75], [36.75, 18.0], [36.97, 18.53], [37.5, 18.75]]]]}, "2026-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.85, 18.25], [36.75, 18.5], [36.97, 19.03], [37.5, 19.25], [38.03, 19.03], [38.18, 18.68], [38.53, 18.53], [38.68, 18.18], [38.75, 18.15], [39.0, 18.25], [39.5, 18.04], [40.0, 18.25], [40.25, 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