{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:29.996634", "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": "2026-Feb-12_to_2026-Feb-15_25.0_46.5"}, "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": 2026020001792}, "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": "February 12 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 15 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 90458.30572362314}, "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": ["Romania", "Slovakia", "Ukraine"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "Europe", "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": 46.5}, "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": 25.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "25.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 21.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 26.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.25}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[25.75, 46.0], [25.53, 45.47], [25.18, 45.32], [25.03, 44.97], [24.5, 44.75], [23.97, 44.97], [23.82, 45.32], [23.75, 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of the event at each time step", "value": {"2026-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.35, 46.75], [21.25, 47.0], [21.47, 47.53], [21.82, 47.68], [21.97, 48.03], [22.38, 48.2], [22.32, 48.32], [21.97, 48.47], [21.75, 49.0], [21.97, 49.53], [22.5, 49.75], [22.75, 49.65], [23.0, 49.75], [23.25, 49.65], [23.5, 49.75], [24.03, 49.53], [24.18, 49.18], [24.25, 49.15], [24.5, 49.25], [25.03, 49.03], [25.25, 48.5], [25.15, 48.25], [25.18, 48.18], [25.25, 48.15], [25.5, 48.25], [25.75, 48.15], [26.0, 48.25], [26.53, 48.03], [26.75, 47.5], [26.53, 46.97], [26.18, 46.82], [26.03, 46.47], [25.68, 46.32], [25.53, 45.97], [25.18, 45.82], [25.03, 45.47], [24.5, 45.25], [24.25, 45.35], [24.0, 45.25], [23.75, 45.35], [23.68, 45.32], [23.53, 44.97], [23.0, 44.75], [22.47, 44.97], [22.32, 45.32], [22.25, 45.35], [22.0, 45.25], [21.75, 45.35], [21.5, 45.25], [20.97, 45.47], [20.75, 46.0], [20.97, 46.53], [21.32, 46.68], [21.35, 46.75]]]]}, 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"The daily evolution of mean t2m anomalies.", "value": [7.165446133354477, 6.605979366379968, 6.7801463413192256, 5.710151546465568]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.881125626546122, 8.45909970310197, 8.193437167102672, 5.998071589408937]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5323088334791093, 1.4173854166310338, 1.4442521037195593, 1.2483946332866402]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8284656485543833, 1.7107658151042016, 1.8465883138899377, 1.30062222085209]}}