{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:41.384448", "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-Apr-08_to_2023-Apr-11_120.0_35.5"}, "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": 2023040001673}, "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 08 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 11 2023"}, "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": 63090.3355983355}, "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"]}, "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": ["Yellow Sea"]}, "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": 35.5}, "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": 120.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 119.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 122.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[119.75, 36.15], [119.82, 36.18], [119.97, 36.53], [120.32, 36.68], [120.47, 37.03], [121.0, 37.25], [121.25, 37.15], 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"MultiPolygon", "coordinates": [[[[119.97, 36.53], [120.32, 36.68], [120.47, 37.03], [121.0, 37.25], [121.25, 37.15], [121.5, 37.25], [121.75, 37.15], [121.82, 37.18], [121.97, 37.53], [122.5, 37.75], [123.03, 37.53], [123.25, 37.0], [123.15, 36.75], [123.25, 36.5], [123.03, 35.97], [122.68, 35.82], [122.53, 35.47], [122.0, 35.25], [121.75, 35.35], [121.5, 35.25], [121.25, 35.35], [121.0, 35.25], [120.75, 35.35], [120.68, 35.32], [120.53, 34.97], [120.0, 34.75], [119.47, 34.97], [119.25, 35.5], [119.47, 36.03], [119.82, 36.18], [119.97, 36.53]]]]}, "2023-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.75, 35.5], [118.97, 36.03], [119.5, 36.25], [119.75, 36.15], [119.82, 36.18], [119.97, 36.53], [120.32, 36.68], [120.47, 37.03], [121.0, 37.25], [121.25, 37.15], [121.5, 37.25], [121.75, 37.15], [121.82, 37.18], [121.97, 37.53], [122.5, 37.75], [123.03, 37.53], [123.25, 37.0], [123.15, 36.75], [123.25, 36.5], [123.03, 35.97], [122.68, 35.82], [122.53, 35.47], 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t2m anomalies.", "value": [2.046966089879004, 2.4986432167488033, 3.4715608099652946, 2.4527832580491853]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.7499767330575082, 4.480898400121532, 6.626908545748847, 3.407020841384224]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.570515934001961, 1.8503251142165618, 2.493599205421308, 1.7175096137755574]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9741782210657515, 2.4285166383026664, 3.157649895465172, 2.2088168315825616]}}