{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:25.923150", "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-Sep-23_to_2023-Sep-28_133.5_53.0"}, "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": 2023090001840}, "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": "September 23 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 28 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": 97560.5725236516}, "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": 53.0}, "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": 133.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "133.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 131.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 135.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 49.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[130.85, 52.25], [130.75, 52.5], [130.97, 53.03], [131.5, 53.25], [131.75, 53.15], [131.82, 53.18], [131.91, 53.39], 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"description": "List of all IPCC regions affected", "value": ["Russian-Far-East"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.5, 53.25], [131.97, 53.47], [131.75, 54.0], [131.97, 54.53], [132.5, 54.75], [132.75, 54.65], [133.0, 54.75], [133.25, 54.65], [133.32, 54.68], [133.47, 55.03], [134.0, 55.25], [134.25, 55.15], [134.5, 55.25], [134.75, 55.15], [135.0, 55.25], [135.53, 55.03], [135.75, 54.5], [135.53, 53.97], [135.0, 53.75], [134.75, 53.85], [134.5, 53.75], [134.25, 53.85], [134.18, 53.82], [134.03, 53.47], [133.5, 53.25], [133.25, 53.35], [133.0, 53.25], [132.75, 53.35], [132.5, 53.25]]]]}, "2023-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.75, 51.5], [130.85, 51.75], [130.75, 52.0], [130.85, 52.25], [130.75, 52.5], [130.97, 53.03], [131.5, 53.25], [131.75, 53.15], [131.82, 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