{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:49.375217", "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-Apr-20_to_2025-Apr-22_113.5_-27.5"}, "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": 2025040002164}, "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 20 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 22 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": 100718.93230018344}, "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": -27.5}, "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": 113.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "113.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 110.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 114.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[109.82, -23.82], [109.97, -23.47], [110.32, -23.32], [110.47, -22.97], [111.0, -22.75], [111.25, -22.85], [111.5, -22.75], [111.75, -22.85], [111.82, -22.82], [111.97, -22.47], [112.5, -22.25], [113.03, -22.47], [113.25, -23.0], [113.15, -23.25], [113.25, -23.5], [113.15, -23.75], [113.18, -23.82], [113.53, -23.97], [113.68, -24.32], [114.03, -24.47], [114.25, -25.0], [114.03, -25.53], [113.68, -25.68], [113.65, -25.75], [113.75, -26.0], [113.65, -26.25], [113.68, -26.32], [114.03, -26.47], [114.18, -26.82], [114.53, -26.97], [114.75, -27.5], [114.65, -27.75], [114.68, -27.82], [115.03, -27.97], [115.25, -28.5], [115.03, -29.03], [114.5, -29.25], [114.25, -29.15], [114.0, -29.25], [113.47, -29.03], [113.25, -28.5], [113.35, -28.25], [113.32, -28.18], [112.97, -28.03], [112.75, -27.5], [112.85, -27.25], [112.82, -27.18], [112.47, -27.03], [112.25, -26.5], [112.35, -26.25], [112.25, -26.0], [112.35, -25.75], [112.32, -25.68], [112.25, -25.65], [112.18, -25.68], [112.03, -26.03], [111.5, -26.25], [111.25, -26.15], [111.0, -26.25], [110.47, -26.03], [110.32, -25.68], [110.25, -25.65], [110.0, -25.75], [109.47, -25.53], [109.25, -25.0], [109.35, -24.75], [109.25, -24.5], [109.47, -23.97], [109.82, -23.82]]]]}}, "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": {"2025-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.25, -24.5], [109.47, -23.97], [109.82, -23.82], [109.97, -23.47], [110.32, -23.32], [110.47, -22.97], [111.0, -22.75], [111.25, -22.85], [111.5, -22.75], [111.75, -22.85], [111.82, -22.82], [111.97, -22.47], [112.5, -22.25], [113.03, -22.47], [113.25, -23.0], [113.15, -23.25], [113.25, -23.5], [113.15, -23.75], [113.18, -23.82], [113.53, -23.97], [113.68, -24.32], [114.03, -24.47], [114.25, -25.0], [114.03, -25.53], [113.68, -25.68], [113.65, -25.75], [113.75, -26.0], [113.65, -26.25], [113.68, -26.32], [114.03, -26.47], [114.18, 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"2025-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.25, -24.5], [109.47, -23.97], [109.82, -23.82], [109.97, -23.47], [110.32, -23.32], [110.47, -22.97], [111.0, -22.75], [111.25, -22.85], [111.5, -22.75], [111.75, -22.85], [111.82, -22.82], [111.97, -22.47], [112.5, -22.25], [113.03, -22.47], [113.25, -23.0], [113.15, -23.25], [113.25, -23.5], [113.15, -23.75], [113.18, -23.82], [113.53, -23.97], [113.68, -24.32], [114.03, -24.47], [114.25, -25.0], [114.03, -25.53], [113.68, -25.68], [113.65, -25.75], [113.75, -26.0], [113.65, -26.25], [113.68, -26.32], [114.03, -26.47], [114.18, -26.82], [114.53, -26.97], [114.75, -27.5], [114.65, -27.75], [114.68, -27.82], [115.03, -27.97], [115.25, -28.5], [115.03, -29.03], [114.5, -29.25], [114.25, -29.15], [114.0, -29.25], [113.47, -29.03], [113.25, -28.5], [113.35, -28.25], [113.32, -28.18], [112.97, -28.03], [112.75, -27.5], [112.85, -27.25], [112.82, -27.18], [112.47, -27.03], [112.25, -26.5], [112.35, -26.25], [112.25, -26.0], [112.35, -25.75], [112.32, -25.68], [112.25, -25.65], [112.18, -25.68], [112.03, -26.03], [111.5, -26.25], [111.25, -26.15], [111.0, -26.25], [110.47, -26.03], [110.32, -25.68], [110.25, -25.65], [110.0, -25.75], [109.47, -25.53], [109.25, -25.0], [109.35, -24.75], [109.25, -24.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.8931905480746423}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0078590772228297}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.51056173819086, 25.793461947970968, 25.700645559805366]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.02947133382162, 26.38917185465499, 26.826020812988304]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8475186670380184, 2.1499092375031696, 2.0261493271273014]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.7652464617594887, 3.8931905480746423, 3.803451164590456]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6032972021047778, 1.8895331648285827, 1.7936635612372867]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9202233690357464, 2.758882855867914, 2.388201809422305]}}