{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:24.599148", "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-Apr-29_to_2025-May-02_112.5_34.0"}, "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": 2025040002618}, "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 29 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2025"}, "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": 100751.27240358756}, "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"]}, "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": 34.0}, "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": 112.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "112.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 110.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 114.75}, "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": 35.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.53, 32.97], [114.0, 32.75], [113.47, 32.97], [113.25, 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33.5], [114.65, 33.25], [114.68, 33.18], [115.03, 33.03], [115.25, 32.5], [115.03, 31.97], [114.5, 31.75], [114.25, 31.85], [114.0, 31.75], [113.75, 31.85], [113.68, 31.82], [113.53, 31.47], [113.0, 31.25], [112.7, 31.38], [112.53, 30.97], [112.0, 30.75], [111.75, 30.85], [111.5, 30.75], [110.97, 30.97], [110.75, 31.5], [110.85, 31.75], [110.82, 31.82], [110.47, 31.97], [110.32, 32.32], [109.97, 32.47], [109.75, 33.0]]]]}, "2025-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.75, 33.0], [109.97, 33.53], [110.32, 33.68], [110.47, 34.03], [110.82, 34.18], [110.85, 34.25], [110.75, 34.5], [110.97, 35.03], [111.5, 35.25], [111.75, 35.15], [112.0, 35.25], [112.25, 35.15], [112.5, 35.25], [112.75, 35.15], [112.82, 35.18], [112.97, 35.53], [113.5, 35.75], [113.75, 35.65], [114.0, 35.75], [114.53, 35.53], [114.75, 35.0], [114.54, 34.5], [114.75, 34.0], [114.65, 33.75], [114.75, 33.5], [114.65, 33.25], [114.68, 33.18], [115.03, 33.03], [115.25, 32.5], [115.03, 31.97], 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