{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:18.753954", "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": "2021-Aug-31_to_2021-Sep-02_141.5_-34.5"}, "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": 2021080003274}, "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 31 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 02 2021"}, "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": 85870.81700843197}, "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": -34.5}, "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": 141.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 138.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[138.5, -30.25], [138.75, -30.35], [138.82, -30.32], [138.97, -29.97], [139.5, -29.75], [140.03, -29.97], [140.25, -30.5], [140.15, -30.75], [140.25, -31.0], [140.15, -31.25], [140.25, -31.5], [140.15, -31.75], [140.18, -31.82], [140.25, -31.85], [140.32, -31.82], [140.47, -31.47], [141.0, -31.25], [141.25, -31.35], [141.5, -31.25], [142.0, -31.46], [142.5, -31.25], [143.03, -31.47], [143.25, -32.0], [143.15, -32.25], [143.25, -32.5], [143.15, -32.75], [143.18, -32.82], [143.53, -32.97], [143.68, -33.32], [144.03, -33.47], [144.25, -34.0], [144.03, -34.53], [143.5, -34.75], [143.25, -34.65], [143.0, -34.75], [142.75, -34.65], [142.5, -34.75], [142.25, -34.65], [142.18, -34.68], [142.03, -35.03], [141.5, -35.25], [140.97, -35.03], [140.82, -34.68], [140.47, -34.53], [140.25, -34.0], [140.35, -33.75], [140.25, -33.5], [140.35, -33.25], [140.32, -33.18], [140.25, -33.15], [140.0, -33.25], [139.47, -33.03], [139.32, -32.68], [139.25, -32.65], [139.0, -32.75], [138.47, -32.53], [138.32, -32.18], [137.97, -32.03], [137.75, -31.5], [137.85, -31.25], [137.75, -31.0], [137.97, -30.47], [138.5, -30.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.Australia", "S.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -31.0], [137.97, -30.47], [138.5, -30.25], [138.75, -30.35], [138.82, -30.32], [138.97, -29.97], [139.5, -29.75], [140.03, -29.97], [140.25, -30.5], [140.15, -30.75], [140.25, -31.0], [140.15, -31.25], [140.25, -31.5], [140.15, -31.75], [140.18, -31.82], [140.25, -31.85], [140.32, -31.82], [140.47, -31.47], [141.0, -31.25], [141.25, -31.35], [141.5, -31.25], [142.0, -31.46], [142.5, -31.25], [143.03, -31.47], [143.25, -32.0], [143.15, -32.25], [143.25, -32.5], [143.15, -32.75], [143.18, -32.82], [143.53, -32.97], [143.68, -33.32], [144.03, -33.47], [144.25, -34.0], [144.03, -34.53], [143.5, -34.75], [143.25, -34.65], [143.0, -34.75], 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"mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.43553302566309}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.409649574420484, 21.796071556913773, 26.3501360527585]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.685288299739398, 23.098383798886914, 27.68034234574253]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.3732161520503485, 7.71182097540239, 12.221561949536538]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.230303437104737, 8.700886687270213, 13.656855227558822]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5885038372060267, 2.2106877549211488, 3.504777748002329]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7550958070124056, 2.5049536022790426, 4.134179521687485]}}