{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:16:29.646530", "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": "2021-Dec-08_to_2021-Dec-11_117.0_35.0"}, "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": 2021120001806}, "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": "December 08 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 11 2021"}, "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": 69993.93599900589}, "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": []}, "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": 35.0}, "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": 117.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "117.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[115.5, 38.25], [115.75, 38.15], [116.0, 38.25], [116.25, 38.15], [116.5, 38.25], [117.03, 38.03], [117.18, 37.68], 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"Polygon vertices describing the boundary of the event at each time step", "value": {"2021-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, 36.97], [114.75, 37.5], [114.97, 38.03], [115.5, 38.25], [115.75, 38.15], [116.0, 38.25], [116.25, 38.15], [116.5, 38.25], [117.03, 38.03], [117.18, 37.68], [117.5, 37.54], [118.0, 37.75], [118.53, 37.53], [118.68, 37.18], [118.75, 37.15], [119.0, 37.25], [119.25, 37.15], [119.5, 37.25], [120.03, 37.03], [120.25, 36.5], [120.15, 36.25], [120.25, 36.0], [120.03, 35.47], [119.5, 35.25], [119.25, 35.35], [119.0, 35.25], [118.75, 35.35], [118.5, 35.25], [118.25, 35.35], [118.18, 35.32], [118.15, 35.25], [118.25, 35.0], [118.03, 34.47], [117.68, 34.32], [117.65, 34.25], [117.75, 34.0], [117.53, 33.47], [117.0, 33.25], [116.75, 33.35], [116.5, 33.25], [115.97, 33.47], [115.75, 34.0], [115.85, 34.25], [115.75, 34.5], [115.85, 34.75], [115.75, 35.0], [115.97, 35.53], [116.32, 35.68], [116.35, 35.75], [116.25, 36.0], [116.35, 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"value": [5.060919048088855, 4.404417946860148, 5.180955604253343, 5.248774926213348]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.721447609156257, 4.935660597959384, 6.140121397889857, 5.922598805325833]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6912809011675864, 1.4913427320484327, 1.7958908339916622, 1.8447683636826695]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0080602911802004, 1.7878825769779925, 2.194534064074512, 2.2327428713368884]}}