{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:25:41.122087", "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": "2022-Dec-24_to_2022-Dec-26_126.5_-32.0"}, "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": 2022120002664}, "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": "December 24 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 26 2022"}, "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": 79119.07359544496}, "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": -32.0}, "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": 126.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 122.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 127.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.5}, "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": [[[[122.0, -29.75], [122.25, -29.85], [122.5, -29.75], [123.03, -29.97], [123.18, -30.32], [123.25, -30.35], [123.32, -30.32], [123.47, -29.97], [124.0, -29.75], [124.25, -29.85], [124.5, -29.75], [125.03, -29.97], [125.18, -30.32], [125.25, -30.35], [125.5, -30.25], [125.75, -30.35], [126.0, -30.25], [126.53, -30.47], [126.68, -30.82], [127.03, -30.97], [127.18, -31.32], [127.53, -31.47], [127.75, -32.0], [127.53, -32.53], [127.18, -32.68], [127.03, -33.03], [126.5, -33.25], [126.25, -33.15], [126.0, -33.25], [125.75, -33.15], [125.5, -33.25], [125.25, -33.15], [125.0, -33.25], [124.47, -33.03], [124.25, -32.5], [124.35, -32.25], [124.32, -32.18], [124.0, -32.04], [123.5, -32.25], [123.25, -32.15], [123.0, -32.25], [122.75, -32.15], [122.5, -32.25], [121.97, -32.03], [121.82, -31.68], [121.47, -31.53], [121.25, -31.0], [121.35, -30.75], [121.25, -30.5], [121.47, -29.97], [122.0, -29.75]]]]}}, "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": {"2022-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.25, -30.5], [121.47, -29.97], [122.0, -29.75], [122.25, -29.85], [122.5, -29.75], [123.03, -29.97], [123.18, -30.32], [123.25, -30.35], [123.32, -30.32], [123.47, -29.97], [124.0, -29.75], [124.25, -29.85], [124.5, -29.75], [125.03, -29.97], [125.18, -30.32], [125.25, -30.35], [125.5, -30.25], [125.75, -30.35], [126.0, -30.25], [126.53, -30.47], [126.68, -30.82], [127.03, -30.97], [127.18, -31.32], [127.53, -31.47], [127.75, -32.0], [127.53, -32.53], [127.18, -32.68], [127.03, -33.03], [126.5, -33.25], [126.25, -33.15], [126.0, -33.25], [125.75, -33.15], [125.5, -33.25], [125.25, -33.15], [125.0, -33.25], [124.47, -33.03], [124.25, -32.5], [124.35, -32.25], [124.32, -32.18], [124.0, -32.04], [123.5, -32.25], [123.25, -32.15], [123.0, -32.25], [122.75, -32.15], [122.5, -32.25], [121.97, -32.03], [121.82, -31.68], [121.47, -31.53], [121.25, -31.0], [121.35, -30.75], [121.25, -30.5]]]]}, "2022-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.25, -30.5], [121.47, -29.97], [122.0, -29.75], [122.25, -29.85], [122.5, -29.75], [123.03, -29.97], [123.18, -30.32], [123.25, -30.35], [123.32, -30.32], [123.47, -29.97], [124.0, -29.75], [124.25, -29.85], [124.5, -29.75], [125.03, -29.97], [125.18, -30.32], [125.25, -30.35], [125.5, -30.25], [125.75, -30.35], [126.0, -30.25], [126.53, -30.47], [126.68, -30.82], [127.03, -30.97], [127.18, -31.32], [127.53, -31.47], [127.75, -32.0], [127.53, -32.53], [127.18, -32.68], [127.03, -33.03], [126.5, -33.25], [126.25, -33.15], [126.0, -33.25], [125.75, -33.15], [125.5, -33.25], [125.25, -33.15], [125.0, -33.25], [124.47, -33.03], [124.25, -32.5], [124.35, -32.25], [124.32, -32.18], [124.0, -32.04], [123.5, -32.25], [123.25, -32.15], [123.0, -32.25], [122.75, -32.15], [122.5, -32.25], [121.97, -32.03], [121.82, -31.68], [121.47, -31.53], [121.25, -31.0], [121.35, -30.75], [121.25, -30.5]]]]}, "2022-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.25, -30.5], [121.47, -29.97], [122.0, -29.75], [122.25, -29.85], [122.5, -29.75], [123.03, -29.97], [123.18, -30.32], [123.25, -30.35], [123.32, -30.32], [123.47, -29.97], [124.0, -29.75], [124.25, -29.85], [124.5, -29.75], [125.03, -29.97], [125.18, -30.32], [125.25, -30.35], [125.5, -30.25], [125.75, -30.35], [126.0, -30.25], [126.53, -30.47], [126.68, -30.82], [127.03, -30.97], [127.18, -31.32], [127.53, -31.47], [127.75, -32.0], [127.53, -32.53], [127.18, -32.68], [127.03, -33.03], [126.5, -33.25], [126.25, -33.15], [126.0, -33.25], [125.75, -33.15], [125.5, -33.25], [125.25, -33.15], [125.0, -33.25], [124.47, -33.03], [124.25, -32.5], [124.35, -32.25], [124.32, -32.18], [124.0, -32.04], [123.5, -32.25], [123.25, -32.15], [123.0, -32.25], [122.75, -32.15], [122.5, -32.25], [121.97, -32.03], [121.82, -31.68], [121.47, -31.53], [121.25, -31.0], [121.35, -30.75], [121.25, -30.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.073447024685038}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.548719458697997}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.954972136881054, 29.56826438989765, 29.641013372609734]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.605727817258185, 32.501747846085095, 32.77526407508475]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.268281560776974, 6.709463906243019, 6.668412909073991]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.615380260741574, 11.073447024685038, 9.678424138818798]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8974255409403828, 2.1002935401239844, 2.044493664064186]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.627455216891814, 3.6842260902636452, 3.3130512064554543]}}