{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:35:17.491102", "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-May-01_to_2023-May-03_117.5_43.5"}, "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": 2023050001070}, "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 01 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 03 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": 69729.29674676486}, "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": ["China"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "E.C.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 43.5}, "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": 117.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "117.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 111.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.47, 44.03], [112.0, 44.25], [112.25, 44.15], [112.5, 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[111.35, 43.25], [111.25, 43.5], [111.47, 44.03]]]]}, "2023-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.47, 44.03], [112.0, 44.25], [112.25, 44.15], [112.5, 44.25], [112.75, 44.15], [113.0, 44.25], [113.25, 44.15], [113.5, 44.25], [113.75, 44.15], [114.0, 44.25], [114.25, 44.15], [114.5, 44.25], [114.75, 44.15], [115.0, 44.25], [115.25, 44.15], [115.5, 44.25], [115.75, 44.15], [116.0, 44.25], [116.25, 44.15], [116.5, 44.25], [116.75, 44.15], [116.82, 44.18], [116.97, 44.53], [117.5, 44.75], [117.75, 44.65], [118.0, 44.75], [118.53, 44.53], [118.68, 44.18], [118.75, 44.15], [119.0, 44.25], [119.53, 44.03], [119.75, 43.5], [119.53, 42.97], [119.18, 42.82], [119.03, 42.47], [118.5, 42.25], [118.25, 42.35], [118.0, 42.25], [117.75, 42.35], [117.5, 42.25], [117.25, 42.35], [117.0, 42.25], [116.75, 42.35], [116.5, 42.25], [116.25, 42.35], [116.0, 42.25], [115.75, 42.35], [115.5, 42.25], [115.25, 42.35], [115.0, 42.25], [114.75, 42.35], [114.5, 42.25], [114.25, 42.35], [114.0, 42.25], [113.75, 42.35], [113.5, 42.25], [113.25, 42.35], [113.0, 42.25], [112.75, 42.35], [112.5, 42.25], [112.25, 42.35], [112.0, 42.25], [111.47, 42.47], [111.25, 43.0], [111.35, 43.25], [111.25, 43.5], [111.47, 44.03]]]]}, "2023-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.47, 44.03], [112.0, 44.25], [112.25, 44.15], [112.5, 44.25], [112.75, 44.15], [113.0, 44.25], [113.25, 44.15], [113.5, 44.25], [113.75, 44.15], [114.0, 44.25], [114.25, 44.15], [114.5, 44.25], [114.75, 44.15], [115.0, 44.25], [115.25, 44.15], [115.5, 44.25], [115.75, 44.15], [116.0, 44.25], [116.25, 44.15], [116.5, 44.25], [116.75, 44.15], [116.82, 44.18], [116.97, 44.53], [117.5, 44.75], [117.75, 44.65], [118.0, 44.75], [118.53, 44.53], [118.68, 44.18], [118.75, 44.15], [119.0, 44.25], [119.53, 44.03], [119.75, 43.5], [119.53, 42.97], [119.18, 42.82], [119.03, 42.47], [118.5, 42.25], [118.25, 42.35], [118.0, 42.25], [117.75, 42.35], [117.5, 42.25], [117.25, 42.35], 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[20.29258329002556, 22.959869293445365, 23.324765115329058]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.380247272495012, 9.042768949992245, 8.244363336187662]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.260796582214823, 9.874217065658968, 10.1002696935617]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5395431408989224, 1.890693977460722, 1.6989284997678957]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.735650842130573, 2.2654313209771395, 1.9854518662846912]}}