{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:21.950419", "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-Oct-01_to_2025-Oct-04_111.5_-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": 2025100000779}, "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": "October 01 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 04 2025"}, "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": 130082.17478600562}, "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": ["Indian Ocean"]}, "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": 111.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "111.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 110.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 113.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[110.35, -25.25], [110.25, -25.0], [110.35, -24.75], [110.25, -24.5], [110.35, -24.25], [110.25, -24.0], [110.47, -23.47], [111.0, -23.25], [111.53, -23.47], [111.68, -23.82], [111.75, -23.85], [112.0, -23.75], [112.25, -23.85], [112.5, -23.75], [113.03, -23.97], [113.18, -24.32], [113.53, -24.47], [113.75, -25.0], [113.65, -25.25], [113.75, -25.5], [113.65, -25.75], [113.68, -25.82], [114.03, -25.97], [114.25, -26.5], [114.15, -26.75], [114.25, -27.0], [114.15, -27.25], [114.25, -27.5], [114.15, -27.75], [114.25, -28.0], [114.03, -28.53], [113.63, -28.7], [113.75, -29.0], [113.53, -29.53], [113.0, -29.75], [112.75, -29.65], [112.5, -29.75], [111.97, -29.53], [111.75, -29.0], [111.85, -28.75], [111.82, -28.68], [111.75, -28.65], [111.5, -28.75], [110.97, -28.53], [110.82, -28.18], [110.47, -28.03], [110.25, -27.5], [110.35, -27.25], [110.32, -27.18], [109.97, -27.03], [109.75, -26.5], [109.85, -26.25], [109.75, -26.0], [109.97, -25.47], [110.32, -25.32], [110.35, -25.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.Australia", "S.Indian-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.75, -26.0], [109.97, -25.47], [110.32, -25.32], [110.35, -25.25], [110.25, -25.0], [110.35, -24.75], [110.25, -24.5], [110.35, -24.25], [110.25, -24.0], [110.47, -23.47], [111.0, -23.25], [111.53, -23.47], [111.68, -23.82], [111.75, -23.85], [112.0, -23.75], [112.25, -23.85], [112.5, -23.75], [113.03, -23.97], [113.25, -24.5], [113.03, -25.03], [112.68, -25.18], [112.65, -25.25], [112.75, -25.5], [112.65, -25.75], [112.75, -26.0], [112.65, -26.25], [112.75, -26.5], [112.65, -26.75], [112.75, -27.0], [112.65, -27.25], [112.68, -27.32], [113.03, -27.47], [113.25, -28.0], [113.15, -28.25], [113.18, -28.32], [113.53, -28.47], [113.75, -29.0], [113.53, -29.53], [113.0, -29.75], [112.75, -29.65], [112.5, -29.75], [111.97, -29.53], [111.75, -29.0], [111.85, 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21.17135391235354, 21.82009658813479]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4021040269685636, 1.562167273613291, 1.6131748443300757, 1.7459284184102557]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8341614252793192, 1.8578995757451366, 2.153173801423975, 2.3848942996995675]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4590034421836016, 1.6029350926732535, 1.6887455226888934, 1.722400957004806]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8431274183242092, 2.0200955441125137, 2.218001623848495, 1.9736410578859371]}}