{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:37.589339", "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-13_to_2024-Dec-15_87.5_59.5"}, "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": 2024120001594}, "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 13 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 15 2024"}, "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": 51634.2262295941}, "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": 59.5}, "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": 87.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "87.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 84.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 89.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[83.75, 58.5], [83.97, 59.03], [84.5, 59.25], [84.75, 59.15], [85.0, 59.25], [85.25, 59.15], [85.32, 59.18], [85.35, 59.25], [85.25, 59.5], [85.47, 60.03], [86.0, 60.25], [86.25, 60.15], [86.5, 60.25], [86.75, 60.15], [87.0, 60.25], [87.25, 60.15], [87.5, 60.25], [88.03, 60.03], [88.18, 59.68], [88.25, 59.65], [88.5, 59.75], [88.75, 59.65], [89.0, 59.75], [89.53, 59.53], [89.75, 59.0], [89.65, 58.75], [89.68, 58.68], [90.03, 58.53], [90.25, 58.0], [90.03, 57.47], [89.68, 57.32], [89.53, 56.97], [89.0, 56.75], [88.75, 56.85], [88.5, 56.75], [87.97, 56.97], [87.82, 57.32], [87.75, 57.35], [87.5, 57.25], [87.25, 57.35], [87.0, 57.25], [86.75, 57.35], [86.5, 57.25], [86.25, 57.35], [86.0, 57.25], [85.75, 57.35], [85.5, 57.25], [84.97, 57.47], [84.82, 57.82], [84.75, 57.85], [84.5, 57.75], [83.97, 57.97], [83.75, 58.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia", "E.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.5, 57.75], [83.97, 57.97], [83.75, 58.5], [83.97, 59.03], [84.5, 59.25], [84.75, 59.15], [85.0, 59.25], [85.25, 59.15], [85.32, 59.18], [85.35, 59.25], [85.25, 59.5], [85.47, 60.03], [86.0, 60.25], [86.25, 60.15], [86.5, 60.25], [86.75, 60.15], [87.0, 60.25], [87.25, 60.15], [87.5, 60.25], [88.03, 60.03], [88.18, 59.68], [88.25, 59.65], [88.5, 59.75], [88.75, 59.65], [89.0, 59.75], [89.53, 59.53], [89.75, 59.0], [89.65, 58.75], [89.68, 58.68], [90.03, 58.53], [90.25, 58.0], [90.03, 57.47], [89.68, 57.32], [89.53, 56.97], [89.0, 56.75], [88.75, 56.85], [88.5, 56.75], [87.97, 56.97], [87.82, 57.32], [87.75, 57.35], [87.5, 57.25], [87.25, 57.35], [87.0, 57.25], [86.75, 57.35], [86.5, 57.25], [86.25, 57.35], [86.0, 57.25], [85.75, 57.35], [85.5, 57.25], [84.97, 57.47], [84.82, 57.82], [84.75, 57.85], [84.5, 57.75]]]]}, "2024-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.5, 57.75], [83.97, 57.97], [83.75, 58.5], [83.97, 59.03], [84.5, 59.25], [84.75, 59.15], [85.0, 59.25], [85.25, 59.15], [85.32, 59.18], [85.35, 59.25], [85.25, 59.5], [85.47, 60.03], [86.0, 60.25], [86.25, 60.15], [86.5, 60.25], [86.75, 60.15], [87.0, 60.25], [87.25, 60.15], [87.5, 60.25], [88.03, 60.03], [88.18, 59.68], [88.25, 59.65], [88.5, 59.75], [88.75, 59.65], [89.0, 59.75], [89.53, 59.53], [89.75, 59.0], [89.65, 58.75], [89.68, 58.68], [90.03, 58.53], [90.25, 58.0], [90.03, 57.47], [89.68, 57.32], [89.53, 56.97], [89.0, 56.75], [88.75, 56.85], [88.5, 56.75], [87.97, 56.97], [87.82, 57.32], [87.75, 57.35], [87.5, 57.25], [87.25, 57.35], [87.0, 57.25], [86.75, 57.35], [86.5, 57.25], [86.25, 57.35], [86.0, 57.25], [85.75, 57.35], [85.5, 57.25], [84.97, 57.47], [84.82, 57.82], [84.75, 57.85], [84.5, 57.75]]]]}, "2024-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.5, 57.75], [83.97, 57.97], [83.75, 58.5], [83.97, 59.03], [84.5, 59.25], [84.75, 59.15], [85.0, 59.25], 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11.647507115847105}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-5.8952468872070085, -6.377265675862645, -2.0845703124999773]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-5.548434956868448, -5.4477434794108035, -1.3384791056315066]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.121200364666269, 9.992238600338002, 13.82908238253704]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.483408497153249, 10.314131621518072, 14.536199307902223]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.264534038833184, 1.1910246060323735, 1.665051056277072]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3847293826003022, 1.2378573854355732, 1.7213086178053052]}}