{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:46.997296", "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": "2025-Jul-26_to_2025-Jul-31_85.0_55.0"}, "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": 2025070002868}, "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": "July 26 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2025"}, "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": 77237.75012360496}, "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": 55.0}, "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": 85.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "85.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 81.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 86.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[80.47, 55.53], [80.82, 55.68], [80.97, 56.03], [81.5, 56.25], [82.03, 56.03], [82.18, 55.68], [82.25, 55.65], [82.5, 55.75], 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55.65]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.25, 54.5], [80.35, 54.75], [80.25, 55.0], [80.47, 55.53], [80.82, 55.68], [80.97, 56.03], [81.5, 56.25], [82.03, 56.03], [82.18, 55.68], [82.25, 55.65], [82.5, 55.75], [82.75, 55.65], [83.0, 55.75], [83.53, 55.53], [83.68, 55.18], [83.75, 55.15], [84.0, 55.25], [84.53, 55.03], [84.68, 54.68], [85.03, 54.53], [85.25, 54.0], [85.03, 53.47], [84.68, 53.32], [84.65, 53.25], [84.75, 53.0], [84.53, 52.47], [84.0, 52.25], [83.75, 52.35], [83.68, 52.32], [83.53, 51.97], [83.0, 51.75], [82.75, 51.85], [82.5, 51.75], [81.97, 51.97], [81.82, 52.32], [81.47, 52.47], [81.25, 53.0], [81.35, 53.25], [81.32, 53.32], [81.25, 53.35], [81.0, 53.25], [80.47, 53.47], 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"description": "Mean t2m anomaly over entire duration", "value": 4.880043547071655}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.622684648301913, 24.782235851622545, 22.827492112379844, 22.18607883942434, 22.492129403573472, 21.670151011149073]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.15969365437826, 27.278805033365927, 23.907250976562523, 22.788223520914755, 23.126804606119833, 21.78465296427413]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.8847322945636105, 6.140343250594529, 4.175300079266319, 4.056622494353069, 4.329215241105323, 3.658761678276335]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.746174591634315, 7.4989416836892815, 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