{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:53:36.869067", "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-May-30_to_2026-Jun-02_263.5_34.5"}, "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": 2026050002782}, "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": "May 30 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 02 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": 115597.81997506408}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": 34.5}, "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": 263.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "263.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 266.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.15, 34.25], [-98.25, 34.5], [-98.03, 35.03], [-97.68, 35.18], [-97.53, 35.53], [-97.18, 35.68], [-97.03, 36.03], [-96.5, 36.25], [-96.25, 36.15], [-96.0, 36.25], [-95.75, 36.15], [-95.5, 36.25], [-95.25, 36.15], [-95.0, 36.25], [-94.47, 36.03], [-94.25, 35.5], [-94.37, 35.2], [-94.25, 35.15], [-94.0, 35.25], [-93.75, 35.15], [-93.5, 35.25], [-92.97, 35.03], [-92.75, 34.5], [-92.85, 34.25], [-92.75, 34.0], [-92.97, 33.47], [-93.32, 33.32], [-93.35, 33.25], [-93.25, 33.0], [-93.46, 32.5], [-93.25, 32.0], [-93.35, 31.75], [-93.25, 31.5], [-93.47, 30.97], [-94.0, 30.75], [-94.53, 30.97], [-94.68, 31.32], [-94.75, 31.35], [-95.0, 31.25], [-95.53, 31.47], [-95.75, 32.0], [-95.53, 32.53], [-95.18, 32.68], [-95.03, 33.03], [-94.68, 33.18], [-94.65, 33.25], [-94.68, 33.32], [-94.75, 33.35], [-95.0, 33.25], [-95.25, 33.35], [-95.32, 33.32], [-95.47, 32.97], [-96.0, 32.75], [-96.25, 32.85], [-96.5, 32.75], [-97.0, 32.96], [-97.5, 32.75], [-98.03, 32.97], [-98.25, 33.5], [-98.15, 33.75], [-98.25, 34.0], [-98.15, 34.25]]]]}, "2026-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.15, 34.25], [-98.25, 34.5], [-98.03, 35.03], [-97.68, 35.18], [-97.53, 35.53], [-97.18, 35.68], [-97.03, 36.03], [-96.5, 36.25], [-96.25, 36.15], [-96.0, 36.25], [-95.75, 36.15], [-95.5, 36.25], [-95.25, 36.15], [-95.0, 36.25], [-94.47, 36.03], [-94.25, 35.5], [-94.37, 35.2], [-94.25, 35.15], [-94.0, 35.25], [-93.75, 35.15], [-93.5, 35.25], [-92.97, 35.03], [-92.75, 34.5], [-92.85, 34.25], [-92.75, 34.0], [-92.97, 33.47], [-93.32, 33.32], [-93.35, 33.25], [-93.25, 33.0], [-93.46, 32.5], [-93.25, 32.0], [-93.35, 31.75], [-93.25, 31.5], [-93.47, 30.97], [-94.0, 30.75], [-94.53, 30.97], [-94.68, 31.32], [-94.75, 31.35], [-94.82, 31.32], [-94.97, 30.97], [-95.5, 30.75], [-96.03, 30.97], [-96.25, 31.5], [-96.15, 31.75], [-96.18, 31.82], [-96.53, 31.97], [-96.68, 32.32], [-97.03, 32.47], [-97.2, 32.88], [-97.5, 32.75], [-98.03, 32.97], [-98.25, 33.5], [-98.15, 33.75], [-98.25, 34.0], [-98.15, 34.25]]]]}, "2026-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.15, 34.25], [-98.25, 34.5], [-98.03, 35.03], [-97.68, 35.18], [-97.53, 35.53], [-97.18, 35.68], [-97.03, 36.03], [-96.5, 36.25], [-96.25, 36.15], [-96.0, 36.25], [-95.75, 36.15], [-95.5, 36.25], [-95.25, 36.15], [-95.0, 36.25], [-94.47, 36.03], [-94.25, 35.5], [-94.37, 35.2], [-94.25, 35.15], [-94.0, 35.25], [-93.75, 35.15], [-93.5, 35.25], [-92.97, 35.03], [-92.75, 34.5], [-92.85, 34.25], [-92.75, 34.0], [-92.97, 33.47], [-93.32, 33.32], [-93.35, 33.25], [-93.25, 33.0], [-93.46, 32.5], [-93.25, 32.0], [-93.35, 31.75], [-93.25, 31.5], [-93.47, 30.97], [-94.0, 30.75], [-94.53, 30.97], [-94.68, 31.32], [-94.75, 31.35], [-94.82, 31.32], [-94.97, 30.97], [-95.5, 30.75], [-96.03, 30.97], [-96.25, 31.5], [-96.15, 31.75], [-96.18, 31.82], [-96.53, 31.97], [-96.68, 32.32], [-97.03, 32.47], [-97.2, 32.88], [-97.5, 32.75], [-98.03, 32.97], [-98.25, 33.5], [-98.15, 33.75], [-98.25, 34.0], [-98.15, 34.25]]]]}, 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amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.959155444452452}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.71155813711664, 28.321850162082285, 28.856608638057025, 28.163996087937164]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.8066396077474, 29.530568695068382, 30.07660827636721, 29.59876403808596]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7508863626983935, 4.027287877972221, 4.354523253313148, 3.4820188743105]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.310249004792865, 5.115834876058557, 5.676386931935497, 3.9698700962126168]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3398929441891816, 1.4885467133989623, 1.6619007145972577, 1.4220942527348224]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.449295153288398, 1.6877485527439078, 1.9169235316830493, 1.6407957999108789]}}