{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:26.941421", "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-Aug-23_to_2025-Aug-25_130.5_-26.5"}, "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": 2025080002454}, "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": "August 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 25 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 171316.19427269843}, "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": []}, "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": -26.5}, "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": 130.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "130.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 126.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 131.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[125.47, -21.97], [125.82, -21.82], [125.97, -21.47], [126.5, -21.25], [127.03, -21.47], [127.18, -21.82], [127.5, -21.96], [128.0, -21.75], [128.53, -21.97], [128.68, -22.32], [129.03, -22.47], [129.18, -22.82], [129.25, -22.85], [129.5, -22.75], [130.03, -22.97], [130.18, -23.32], [130.25, -23.35], [130.5, -23.25], [130.75, -23.35], [131.0, -23.25], [131.53, -23.47], [131.75, -24.0], [131.65, -24.25], [131.75, -24.5], [131.65, -24.75], [131.75, -25.0], [131.65, -25.25], [131.75, -25.5], [131.54, -26.0], [131.75, -26.5], [131.65, -26.75], [131.75, -27.0], [131.65, -27.25], [131.75, -27.5], [131.53, -28.03], [131.0, -28.25], [130.75, -28.15], [130.5, -28.25], [129.97, -28.03], [129.82, -27.68], [129.47, -27.53], [129.32, -27.18], [129.25, -27.15], [129.0, -27.25], [128.47, -27.03], [128.25, -26.5], [128.35, -26.25], [128.32, -26.18], [127.97, -26.03], [127.82, -25.68], [127.47, -25.53], [127.32, -25.18], [126.97, -25.03], [126.82, -24.68], [126.47, -24.53], [126.32, -24.18], [125.97, -24.03], [125.75, -23.5], [125.85, -23.25], [125.82, -23.18], [125.47, -23.03], [125.25, -22.5], [125.47, -21.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, -23.03], [125.25, -22.5], [125.47, -21.97], [125.82, -21.82], [125.97, -21.47], [126.5, -21.25], [127.03, -21.47], [127.18, -21.82], [127.5, -21.96], [128.0, -21.75], [128.53, -21.97], [128.68, -22.32], [129.03, -22.47], [129.18, -22.82], [129.25, -22.85], [129.5, -22.75], [130.03, -22.97], [130.18, -23.32], [130.25, -23.35], [130.5, -23.25], [130.75, -23.35], [131.0, -23.25], [131.53, -23.47], [131.75, -24.0], [131.65, -24.25], [131.75, -24.5], [131.65, -24.75], [131.75, -25.0], [131.65, -25.25], [131.75, -25.5], [131.54, -26.0], [131.75, -26.5], [131.65, -26.75], [131.75, -27.0], [131.65, -27.25], [131.75, -27.5], [131.53, -28.03], 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8.667087767493513}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.901415967582781}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.814017690856645, 23.486384286515715, 23.932950300206244]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.567534383138025, 25.60587844848635, 26.26151555379232]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.624833616184462, 5.983408054799887, 6.096006231763988]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.877856366436561, 7.945238109597881, 8.667087767493513]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.734337089707311, 1.841409101025087, 1.8818614130038323]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0524659948611537, 2.4195709436875945, 2.612761722038156]}}