{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:56:25.743314", "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": "2023-Nov-26_to_2023-Dec-01_142.0_63.5"}, "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": 2023110002036}, "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": "November 26 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 01 2023"}, "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": 63261.07118816898}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 63.5}, "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": 142.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "142.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 139.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 144.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 65.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[138.47, 63.03], [139.0, 63.25], [139.25, 63.15], [139.5, 63.25], [139.75, 63.15], [139.82, 63.18], [139.97, 63.53], 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"value": ["Russian-Arctic", "Russian-Far-East"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, 64.53], [141.32, 64.68], [141.47, 65.03], [142.0, 65.25], [142.25, 65.15], [142.5, 65.25], [142.75, 65.15], [143.0, 65.25], [143.53, 65.03], [143.75, 64.5], [143.65, 64.25], [143.68, 64.18], [144.03, 64.03], [144.25, 63.5], [144.15, 63.25], [144.25, 63.0], [144.03, 62.47], [143.5, 62.25], [143.25, 62.35], [143.0, 62.25], [142.75, 62.35], [142.5, 62.25], [141.97, 62.47], [141.82, 62.82], [141.75, 62.85], [141.5, 62.75], [141.25, 62.85], [141.0, 62.75], [140.47, 62.97], [140.25, 63.5], [140.47, 64.03], [140.82, 64.18], [140.97, 64.53]]]]}, "2023-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, 62.0], [138.35, 62.25], [138.25, 62.5], [138.47, 63.03], [139.0, 63.25], [139.25, 63.15], [139.5, 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