{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:51.889794", "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-Sep-02_to_2025-Sep-05_119.5_-21.5"}, "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": 2025090001131}, "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": "September 02 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 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": 51716.14878003065}, "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": -21.5}, "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": 119.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 117.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[117.0, -20.25], [117.5, -20.46], [118.0, -20.25], [118.25, -20.35], [118.5, -20.25], [118.75, -20.35], [119.0, -20.25], [119.25, -20.35], [119.5, -20.25], [120.03, -20.47], [120.18, -20.82], [120.53, -20.97], [120.75, -21.5], [120.65, -21.75], [120.75, -22.0], [120.65, -22.25], [120.75, -22.5], [120.53, -23.03], [120.0, -23.25], [119.75, -23.15], [119.5, -23.25], [119.25, -23.15], [119.0, -23.25], [118.47, -23.03], [118.32, -22.68], [117.97, -22.53], [117.82, -22.18], [117.75, -22.15], [117.5, -22.25], [116.97, -22.03], [116.82, -21.68], [116.47, -21.53], [116.25, -21.0], [116.47, -20.47], [117.0, -20.25]]]]}}, "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": {"2025-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, -21.53], [116.25, -21.0], [116.47, -20.47], [117.0, -20.25], [117.5, -20.46], [118.0, -20.25], [118.25, -20.35], [118.5, -20.25], [118.75, -20.35], [119.0, -20.25], [119.25, -20.35], [119.5, -20.25], [120.03, -20.47], [120.18, -20.82], [120.53, -20.97], [120.75, -21.5], [120.65, -21.75], [120.75, -22.0], [120.65, -22.25], [120.75, -22.5], [120.53, -23.03], [120.0, -23.25], [119.75, -23.15], [119.5, -23.25], [119.25, -23.15], [119.0, -23.25], [118.47, -23.03], [118.32, -22.68], [117.97, -22.53], [117.82, -22.18], [117.75, -22.15], [117.5, -22.25], [116.97, -22.03], [116.82, -21.68], [116.47, -21.53]]]]}, "2025-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, -21.53], [116.25, -21.0], [116.47, -20.47], [117.0, -20.25], [117.5, -20.46], [118.0, -20.25], [118.25, -20.35], [118.5, -20.25], [118.75, -20.35], [119.0, -20.25], [119.25, -20.35], [119.5, -20.25], [120.03, -20.47], [120.18, -20.82], [120.53, -20.97], [120.75, -21.5], [120.65, -21.75], [120.75, -22.0], [120.65, -22.25], [120.75, -22.5], [120.53, -23.03], [120.0, -23.25], [119.75, -23.15], [119.5, -23.25], [119.25, -23.15], [119.0, -23.25], [118.47, -23.03], [118.32, -22.68], [117.97, -22.53], [117.82, -22.18], [117.75, -22.15], [117.5, -22.25], [116.97, -22.03], [116.82, -21.68], [116.47, -21.53]]]]}, "2025-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, -21.53], [116.25, -21.0], [116.47, -20.47], [117.0, -20.25], [117.5, -20.46], [118.0, -20.25], [118.25, -20.35], [118.5, -20.25], [118.75, -20.35], [119.0, -20.25], [119.25, -20.35], [119.5, -20.25], [120.03, -20.47], [120.18, -20.82], [120.53, -20.97], [120.75, -21.5], [120.65, -21.75], [120.75, -22.0], [120.65, -22.25], [120.75, -22.5], [120.53, -23.03], [120.0, -23.25], [119.75, -23.15], [119.5, -23.25], [119.25, -23.15], [119.0, -23.25], [118.47, -23.03], [118.32, -22.68], [117.97, -22.53], [117.82, -22.18], [117.75, -22.15], [117.5, -22.25], [116.97, -22.03], [116.82, -21.68], [116.47, -21.53]]]]}, "2025-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.97, -20.97], [119.5, -20.75], [120.03, -20.97], [120.25, -21.5], [120.03, -22.03], [119.5, -22.25], [118.97, -22.03], [118.75, -21.5], [118.97, -20.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.332706480377283}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.791219072455128}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.08282058150678, 26.55804313377098, 26.4968874613445, 25.938011423746786]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.91338246663412, 27.141842142740927, 27.364929453531943, 25.938011423746786]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.645029133886469, 4.010818721879319, 3.7727378604853987, 2.8025060925106686]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.250171216735566, 5.332706480377283, 4.207569848572575, 2.8025060925106686]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.339337117114355, 1.534186701537625, 1.5405024442843025, 1.1927969448195177]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5412649484219625, 1.73281504234067, 1.7157157393222149, 1.1927969448195177]}}