{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:27.753444", "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": "2013-May-20_to_2013-May-24_109.5_32.5"}, "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": 2013050002418}, "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 20 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 24 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 76846.19167218432}, "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": 32.5}, "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": 109.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "109.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 108.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 111.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.25, 33.0], [108.47, 33.53], [109.0, 33.75], [109.25, 33.65], [109.5, 33.75], [110.03, 33.53], [110.18, 33.18], [110.53, 33.03], [110.75, 32.5], [110.53, 31.97], [110.0, 31.75], [109.75, 31.85], [109.5, 31.75], [108.97, 31.97], [108.82, 32.32], [108.47, 32.47], [108.25, 33.0]]]]}, "2013-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.75, 33.5], [107.97, 34.03], [108.5, 34.25], [109.03, 34.03], [109.18, 33.68], [109.25, 33.65], [109.5, 33.75], [110.03, 33.53], [110.18, 33.18], [110.53, 33.03], [110.68, 32.68], [111.03, 32.53], [111.25, 32.0], [111.15, 31.75], [111.25, 31.5], [111.04, 31.0], [111.25, 30.5], [111.15, 30.25], [111.25, 30.0], [111.03, 29.47], [110.5, 29.25], [110.25, 29.35], [110.0, 29.25], [109.75, 29.35], [109.5, 29.25], [109.25, 29.35], [109.0, 29.25], [108.75, 29.35], [108.5, 29.25], [107.97, 29.47], [107.75, 30.0], [107.97, 30.53], [108.5, 30.75], [108.75, 30.65], [108.82, 30.68], [108.97, 31.03], [109.32, 31.18], [109.35, 31.25], [109.32, 31.32], [109.25, 31.35], [109.0, 31.25], [108.47, 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4.6897717283856295}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.699049775038816, 22.48971311304274, 24.092702515386748, 23.78762918450792, 24.886224508216173]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.298274574007905, 24.91064713886118, 27.367514425285435, 27.771505807772144, 27.618650635172116]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.257034333927081, 4.329429123126071, 5.086474818365446, 4.843473636327737, 3.983527635544893]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.560104603627622, 5.552088511617512, 6.16534800229249, 6.050943924104274, 4.728896487234465]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3457228324834603, 1.4752078934483361, 1.7963646052485127, 1.7535636046009573, 1.4261465801147404]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4296196144956388, 1.7261762504171823, 2.335418619989884, 2.228331592481517, 1.5931738386242897]}}