{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:56:25.188507", "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-24_to_2023-Nov-26_40.0_44.5"}, "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": 2023110001948}, "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 24 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 26 2023"}, "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": 116602.32646972712}, "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": ["Black Sea", "Sea of Azov"]}, "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": 44.5}, "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": 40.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[34.75, 46.0], [34.97, 46.53], [35.32, 46.68], [35.47, 47.03], [36.0, 47.25], [36.25, 47.15], [36.5, 47.25], [36.75, 47.15], [37.0, 47.25], [37.25, 47.15], [37.5, 47.25], [37.75, 47.15], [37.82, 47.18], [37.97, 47.53], [38.5, 47.75], [38.75, 47.65], [39.0, 47.75], [39.25, 47.65], [39.5, 47.75], [40.03, 47.53], [40.25, 47.0], [40.13, 46.7], [40.25, 46.65], [40.5, 46.75], [40.75, 46.65], [41.0, 46.75], [41.25, 46.65], [41.5, 46.75], [41.75, 46.65], [42.0, 46.75], [42.53, 46.53], [42.68, 46.18], [43.03, 46.03], [43.25, 45.5], [43.03, 44.97], [42.5, 44.75], [42.25, 44.85], [42.18, 44.82], [42.03, 44.47], [41.5, 44.25], [41.25, 44.35], [41.18, 44.32], [41.03, 43.97], [40.5, 43.75], [40.25, 43.85], [40.0, 43.75], [39.47, 43.97], [39.32, 44.32], [39.25, 44.35], [39.0, 44.25], [38.75, 44.35], [38.5, 44.25], [38.25, 44.35], [38.0, 44.25], [37.75, 44.35], [37.5, 44.25], [37.25, 44.35], [37.0, 44.25], [36.75, 44.35], [36.5, 44.25], [36.25, 44.35], [36.0, 44.25], [35.75, 44.35], [35.5, 44.25], [34.97, 44.47], [34.75, 45.0], [34.85, 45.25], [34.75, 45.5], [34.85, 45.75], [34.75, 46.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-Europe", "E.Europe", "Mediterranean", "W.C.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 45.5], [34.85, 45.75], [34.75, 46.0], [34.97, 46.53], [35.32, 46.68], [35.47, 47.03], [36.0, 47.25], [36.25, 47.15], [36.5, 47.25], [36.75, 47.15], [37.0, 47.25], [37.25, 47.15], [37.5, 47.25], [37.75, 47.15], [37.82, 47.18], [37.97, 47.53], [38.5, 47.75], [38.75, 47.65], [39.0, 47.75], [39.25, 47.65], [39.5, 47.75], [40.03, 47.53], [40.25, 47.0], [40.13, 46.7], [40.25, 46.65], [40.5, 46.75], [40.75, 46.65], [41.0, 46.75], [41.25, 46.65], [41.5, 46.75], [41.75, 46.65], [42.0, 46.75], [42.53, 46.53], [42.68, 46.18], [43.03, 46.03], [43.25, 45.5], [43.03, 44.97], [42.5, 44.75], [42.25, 44.85], [42.18, 44.82], [42.03, 44.47], [41.5, 44.25], [41.25, 44.35], [41.18, 44.32], [41.03, 43.97], [40.5, 43.75], [40.25, 43.85], [40.0, 43.75], [39.47, 43.97], [39.32, 44.32], [39.25, 44.35], [39.0, 44.25], [38.75, 44.35], [38.5, 44.25], [38.25, 44.35], [38.0, 44.25], [37.75, 44.35], [37.5, 44.25], [37.25, 44.35], [37.0, 44.25], [36.75, 44.35], [36.5, 44.25], [36.25, 44.35], [36.0, 44.25], [35.75, 44.35], [35.5, 44.25], [34.97, 44.47], [34.75, 45.0], [34.85, 45.25], [34.75, 45.5]]]]}, "2023-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 45.5], [34.85, 45.75], [34.75, 46.0], [34.97, 46.53], [35.32, 46.68], [35.47, 47.03], [36.0, 47.25], [36.25, 47.15], [36.5, 47.25], [36.75, 47.15], [37.0, 47.25], [37.25, 47.15], [37.5, 47.25], [37.75, 47.15], [37.82, 47.18], [37.97, 47.53], [38.5, 47.75], [38.75, 47.65], [39.0, 47.75], [39.25, 47.65], [39.5, 47.75], [40.03, 47.53], [40.25, 47.0], [40.13, 46.7], [40.25, 46.65], [40.5, 46.75], [40.75, 46.65], [41.0, 46.75], [41.25, 46.65], [41.5, 46.75], [41.75, 46.65], [42.0, 46.75], [42.53, 46.53], [42.68, 46.18], [43.03, 46.03], [43.25, 45.5], [43.03, 44.97], [42.5, 44.75], [42.25, 44.85], [42.18, 44.82], [42.03, 44.47], [41.5, 44.25], [41.25, 44.35], [41.18, 44.32], [41.03, 43.97], [40.5, 43.75], [40.25, 43.85], [40.0, 43.75], [39.47, 43.97], [39.32, 44.32], [39.25, 44.35], [39.0, 44.25], [38.75, 44.35], [38.5, 44.25], [38.25, 44.35], [38.0, 44.25], [37.75, 44.35], [37.5, 44.25], [37.25, 44.35], [37.0, 44.25], [36.75, 44.35], [36.5, 44.25], [36.25, 44.35], [36.0, 44.25], [35.75, 44.35], [35.5, 44.25], [34.97, 44.47], [34.75, 45.0], [34.85, 45.25], [34.75, 45.5]]]]}, "2023-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 45.5], [34.85, 45.75], [34.75, 46.0], [34.97, 46.53], [35.32, 46.68], [35.47, 47.03], [36.0, 47.25], [36.25, 47.15], [36.5, 47.25], [36.75, 47.15], [37.0, 47.25], [37.25, 47.15], [37.5, 47.25], [37.75, 47.15], [37.82, 47.18], [37.97, 47.53], [38.5, 47.75], [38.75, 47.65], [39.0, 47.75], [39.25, 47.65], [39.5, 47.75], [40.03, 47.53], [40.25, 47.0], [40.13, 46.7], [40.25, 46.65], [40.5, 46.75], [40.75, 46.65], [41.0, 46.75], [41.25, 46.65], [41.5, 46.75], [41.75, 46.65], [42.0, 46.75], [42.53, 46.53], [42.68, 46.18], [43.03, 46.03], [43.25, 45.5], [43.03, 44.97], [42.5, 44.75], [42.25, 44.85], [42.18, 44.82], [42.03, 44.47], [41.5, 44.25], [41.25, 44.35], [41.18, 44.32], [41.03, 43.97], [40.5, 43.75], [40.25, 43.85], [40.0, 43.75], [39.47, 43.97], [39.32, 44.32], [39.25, 44.35], [39.0, 44.25], [38.75, 44.35], [38.5, 44.25], [38.25, 44.35], [38.0, 44.25], [37.75, 44.35], [37.5, 44.25], [37.25, 44.35], [37.0, 44.25], [36.75, 44.35], [36.5, 44.25], [36.25, 44.35], [36.0, 44.25], [35.75, 44.35], [35.5, 44.25], [34.97, 44.47], [34.75, 45.0], [34.85, 45.25], [34.75, 45.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.82813587851308}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.402679881401882}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.950753191958654, 11.852645600787127, 12.125884031731687]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.037666284625004, 15.091280810497096, 14.48479478825675]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.908624966274965, 7.982233904651413, 8.317180773279267]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.050294093632431, 10.82813587851308, 10.318002575592743]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3451719920142964, 1.777811592260183, 1.8347059703527373]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6233168380461167, 2.2836859647778707, 2.1158450412272556]}}