{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:55.450347", "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-21_to_2023-Apr-26_141.0_-13.5"}, "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": 2023040002458}, "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 21 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 26 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 125877.66102803247}, "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": ["Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": ["Arafura 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": -13.5}, "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": 141.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 139.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 141.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[138.85, -12.75], [138.75, -12.5], [138.97, -11.97], [139.32, -11.82], [139.47, -11.47], [140.0, -11.25], [140.25, 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of the event at each time step", "value": {"2023-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, -13.5], [138.47, -12.97], [138.82, -12.82], [138.97, -12.47], [139.32, -12.32], [139.47, -11.97], [140.0, -11.75], [140.25, -11.85], [140.32, -11.82], [140.47, -11.47], [141.0, -11.25], [141.53, -11.47], [141.75, -12.0], [141.65, -12.25], [141.68, -12.32], [142.03, -12.47], [142.25, -13.0], [142.15, -13.25], [142.25, -13.5], [142.15, -13.75], [142.25, -14.0], [142.03, -14.53], [141.68, -14.68], [141.65, -14.75], [141.75, -15.0], [141.65, -15.25], [141.75, -15.5], [141.53, -16.03], [141.0, -16.25], [140.75, -16.15], [140.5, -16.25], [140.25, -16.15], [140.0, -16.25], [139.47, -16.03], [139.25, -15.5], [139.35, -15.25], [139.32, -15.18], [138.97, -15.03], [138.82, -14.68], [138.47, -14.53], [138.25, -14.0], [138.35, -13.75], [138.25, -13.5]]]]}, "2023-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, -13.5], [138.47, -12.97], 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28.767317087683864, 28.754953141965018, 28.66599429888032, 28.629372861747186, 28.458613346056097]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.14805637337679, 29.164130639330665, 29.17578079538896, 29.039591945770326, 29.035905187523895, 28.66560718926445]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.208045242043166, 1.2642858190268909, 1.2869838863290113, 1.2145136123244682, 1.2252121034031016, 1.0346258181992238]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.572283677812834, 1.640228046009895, 1.7751331020554062, 1.819686266283611, 1.94989538572122, 1.23986042246446]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.670844485315819, 1.7311197828341869, 1.7017833872854065, 1.599092990399313, 1.635733823163195, 1.517821709080409]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1853149101839313, 2.329589026136516, 2.19335094186429, 2.0536895199492258, 2.0435742134080486, 1.8073357275021218]}}