{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:10.629092", "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": "2011-Dec-05_to_2011-Dec-07_41.0_50.5"}, "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": 2011120001903}, "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 05 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 07 2011"}, "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": "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": 73259.94393583135}, "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": 50.5}, "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": 41.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "41.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 52.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.25, 46.5], [38.46, 47.0], [38.25, 47.5], [38.47, 48.03], 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"2011-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.25, 46.5], [38.46, 47.0], [38.25, 47.5], [38.47, 48.03], [38.82, 48.18], [38.96, 48.5], [38.75, 49.0], [38.97, 49.53], [39.32, 49.68], [39.47, 50.03], [40.0, 50.25], [40.25, 50.15], [40.32, 50.18], [40.35, 50.25], [40.25, 50.5], [40.47, 51.03], [40.82, 51.18], [40.85, 51.25], [40.75, 51.5], [40.97, 52.03], [41.32, 52.18], [41.47, 52.53], [42.0, 52.75], [42.53, 52.53], [42.75, 52.0], [42.65, 51.75], [42.75, 51.5], [42.65, 51.25], [42.75, 51.0], [42.65, 50.75], [42.75, 50.5], [42.65, 50.25], [42.75, 50.0], [42.53, 49.47], [42.18, 49.32], [42.15, 49.25], [42.25, 49.0], [42.15, 48.75], [42.25, 48.5], [42.03, 47.97], [41.5, 47.75], [41.25, 47.85], [41.18, 47.82], [41.15, 47.75], [41.25, 47.5], [41.15, 47.25], [41.25, 47.0], [41.03, 46.47], [40.5, 46.25], [40.25, 46.35], [40.18, 46.32], [40.03, 45.97], [39.68, 45.82], [39.53, 45.47], [39.18, 45.32], [39.03, 44.97], [38.5, 44.75], [37.97, 44.97], [37.75, 45.5], 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