{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:29.578021", "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-Apr-05_to_2024-Apr-09_86.5_52.0"}, "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": 2024040001086}, "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": "April 05 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 09 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 78483.0709073033}, "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": ["Kazakhstan", "Russian Federation"]}, "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": 52.0}, "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": 86.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "86.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 82.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 87.0}, "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": 53.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[82.53, 50.47], [82.0, 50.25], [81.47, 50.47], [81.25, 51.0], [81.47, 51.53], [81.82, 51.68], [81.97, 52.03], [82.5, 52.25], 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"polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.5, 52.25], [83.03, 52.03], [83.25, 51.5], [83.03, 50.97], [82.68, 50.82], [82.53, 50.47], [82.0, 50.25], [81.47, 50.47], [81.25, 51.0], [81.47, 51.53], [81.82, 51.68], [81.97, 52.03], [82.5, 52.25]]], [[[83.47, 53.03], [83.82, 53.18], [83.97, 53.53], [84.5, 53.75], [84.75, 53.65], [85.0, 53.75], [85.25, 53.65], [85.5, 53.75], [85.75, 53.65], [86.0, 53.75], [86.25, 53.65], [86.5, 53.75], [87.03, 53.53], [87.25, 53.0], [87.15, 52.75], [87.25, 52.5], [87.15, 52.25], [87.25, 52.0], [87.03, 51.47], [86.68, 51.32], [86.65, 51.25], [86.75, 51.0], [86.53, 50.47], [86.0, 50.25], [85.75, 50.35], [85.68, 50.32], [85.53, 49.97], [85.0, 49.75], [84.47, 49.97], [84.25, 50.5], [84.35, 50.75], [84.32, 50.82], [83.97, 50.97], [83.82, 51.32], [83.47, 51.47], [83.25, 52.0], [83.35, 52.25], 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"Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.731538108431039, 7.805594155774941, 7.9928104140254845, 7.973318421095371, 8.864721793952754]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.626052959780395, 10.64623762580726, 10.88499247129073, 10.817533748800713, 9.481012752222682]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.350143431762269, 7.736262793247019, 7.48788857983455, 7.016407112125939, 6.421915550952796]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.311386054846139, 9.544244034845406, 9.27113467777167, 8.475834911889592, 6.716499177978335]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean 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