{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:26.871599", "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_135.5_-30.5"}, "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": 2025080002452}, "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": 59065.11089285482}, "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": -30.5}, "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": 135.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "135.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 133.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -30.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -29.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[132.47, -28.97], [132.82, -28.82], [132.97, -28.47], [133.5, -28.25], [133.75, -28.35], [134.0, -28.25], [134.25, -28.35], [134.5, -28.25], [134.75, -28.35], [135.0, -28.25], [135.25, -28.35], [135.5, -28.25], [136.03, -28.47], [136.18, -28.82], [136.53, -28.97], [136.75, -29.5], [136.65, -29.75], [136.75, -30.0], [136.53, -30.53], [136.18, -30.68], [136.03, -31.03], [135.5, -31.25], [135.25, -31.15], [135.0, -31.25], [134.75, -31.15], [134.5, -31.25], [134.25, -31.15], [134.0, -31.25], [133.47, -31.03], [133.32, -30.68], [132.97, -30.53], [132.82, -30.18], [132.47, -30.03], [132.25, -29.5], [132.47, -28.97]]]]}}, "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": {"2025-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -30.03], [132.25, -29.5], [132.47, -28.97], [132.82, -28.82], [132.97, -28.47], [133.5, -28.25], [133.75, -28.35], [134.0, -28.25], [134.25, -28.35], [134.5, -28.25], [134.75, -28.35], [135.0, -28.25], [135.25, -28.35], [135.5, -28.25], [136.03, -28.47], [136.18, -28.82], [136.53, -28.97], [136.75, -29.5], [136.65, -29.75], [136.75, -30.0], [136.53, -30.53], [136.18, -30.68], [136.03, -31.03], [135.5, -31.25], [135.25, -31.15], [135.0, -31.25], [134.75, -31.15], [134.5, -31.25], [134.25, -31.15], [134.0, -31.25], [133.47, -31.03], [133.32, -30.68], [132.97, -30.53], [132.82, -30.18], [132.47, -30.03]]]]}, "2025-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -30.03], [132.25, -29.5], [132.47, -28.97], [132.82, -28.82], [132.97, -28.47], [133.5, -28.25], [133.75, -28.35], [134.0, -28.25], [134.25, -28.35], [134.5, -28.25], [134.75, -28.35], [135.0, -28.25], [135.25, -28.35], [135.5, -28.25], [136.03, -28.47], [136.18, -28.82], [136.53, -28.97], [136.75, -29.5], [136.65, -29.75], [136.75, -30.0], [136.53, -30.53], [136.18, -30.68], [136.03, -31.03], [135.5, -31.25], [135.25, -31.15], [135.0, -31.25], [134.75, -31.15], [134.5, -31.25], [134.25, -31.15], [134.0, -31.25], [133.47, -31.03], [133.32, -30.68], [132.97, -30.53], [132.82, -30.18], [132.47, -30.03]]]]}, "2025-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -30.03], [132.25, -29.5], [132.47, -28.97], [132.82, -28.82], [132.97, -28.47], [133.5, -28.25], [133.75, -28.35], [134.0, -28.25], [134.25, -28.35], [134.5, -28.25], [134.75, -28.35], [135.0, -28.25], [135.25, -28.35], [135.5, -28.25], [136.03, -28.47], [136.18, -28.82], [136.53, -28.97], [136.75, -29.5], [136.65, -29.75], [136.75, -30.0], [136.53, -30.53], [136.18, -30.68], [136.03, -31.03], [135.5, -31.25], [135.25, -31.15], [135.0, -31.25], [134.75, -31.15], [134.5, -31.25], [134.25, -31.15], [134.0, -31.25], [133.47, -31.03], [133.32, -30.68], [132.97, -30.53], [132.82, -30.18], [132.47, -30.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.453997287250104}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.9752747380845435}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.792713419596396, 21.12515076145985, 21.74906438191738]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.36701354980471, 22.10026321411135, 23.698608652750693]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.46802527900714, 6.541818759540033, 6.915980175706458]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.025195327344932, 7.833936874746996, 8.453997287250104]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4796864659334417, 2.193340103085174, 2.231195193391581]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7061558692612406, 2.627765697873044, 2.779183578314011]}}