{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:08.448776", "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": "2024-Dec-20_to_2024-Dec-25_35.5_49.0"}, "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": 2024120001869}, "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": "December 20 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 25 2024"}, "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": "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": 73716.72316184576}, "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": ["Russian Federation", "Ukraine"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "West&Central-Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Europe"]}, "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": 49.0}, "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": 35.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 41.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.5, 49.75], [36.03, 49.53], [36.25, 49.0], [36.03, 48.47], [35.5, 48.25], [34.97, 48.47], [34.75, 49.0], [34.97, 49.53], [35.5, 49.75]]]]}, "2024-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.5, 49.75], [36.03, 49.53], [36.25, 49.0], [36.03, 48.47], [35.5, 48.25], [34.97, 48.47], [34.75, 49.0], [34.97, 49.53], [35.5, 49.75]]]]}, "2024-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.5, 49.75], [36.03, 49.53], [36.25, 49.0], [36.03, 48.47], [35.5, 48.25], [34.97, 48.47], [34.75, 49.0], [34.97, 49.53], [35.5, 49.75]]]]}, "2024-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 50.0], [34.97, 50.53], [35.32, 50.68], [35.47, 51.03], [35.82, 51.18], [35.97, 51.53], [36.5, 51.75], [36.75, 51.65], [37.0, 51.75], [37.25, 51.65], [37.5, 51.75], [37.75, 51.65], [38.0, 51.75], [38.25, 51.65], [38.5, 51.75], [39.03, 51.53], [39.18, 51.18], [39.53, 51.03], [39.75, 50.5], [39.63, 50.2], [39.75, 50.15], [40.0, 50.25], [40.25, 50.15], [40.5, 50.25], [40.75, 50.15], [41.0, 50.25], 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