{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:57.052859", "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": "2024-Nov-26_to_2024-Nov-28_123.0_-28.5"}, "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": 2024110000567}, "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": "November 26 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 28 2024"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 233682.73337355308}, "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": -28.5}, "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": 123.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "123.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[120.47, -25.47], [121.0, -25.25], [121.3, -25.37], [121.47, -24.97], [122.0, -24.75], [122.53, -24.97], [122.68, -25.32], [122.75, -25.35], [123.0, -25.25], [123.25, -25.35], [123.32, -25.32], [123.47, -24.97], [124.0, -24.75], [124.25, -24.85], [124.5, -24.75], [125.03, -24.97], [125.25, -25.5], [125.15, -25.75], [125.25, -26.0], [125.15, -26.25], [125.18, -26.32], [125.53, -26.47], [125.68, -26.82], [126.03, -26.97], [126.18, -27.32], [126.53, -27.47], [126.75, -28.0], [126.65, -28.25], [126.68, -28.32], [127.03, -28.47], [127.25, -29.0], [127.03, -29.53], [126.5, -29.75], [126.25, -29.65], [126.18, -29.68], [126.15, -29.75], [126.25, -30.0], [126.15, -30.25], [126.25, -30.5], [126.03, -31.03], [125.63, -31.2], [125.75, -31.5], [125.53, -32.03], [125.0, -32.25], [124.75, -32.15], [124.5, -32.25], [124.25, -32.15], [124.0, -32.25], [123.47, -32.03], [123.32, -31.68], [122.97, -31.53], [122.82, -31.18], [122.47, -31.03], [122.32, -30.68], [122.25, -30.65], [122.0, -30.75], [121.47, -30.53], [121.32, -30.18], [120.97, -30.03], [120.75, -29.5], [120.97, -28.97], [121.32, -28.82], [121.47, -28.47], [121.82, -28.32], [121.85, -28.25], [121.82, -28.18], [121.47, -28.03], [121.25, -27.5], [121.35, -27.25], [121.32, -27.18], [120.97, -27.03], [120.82, -26.68], [120.47, -26.53], [120.25, -26.0], [120.47, -25.47]]]]}}, "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": {"2024-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -26.53], [120.25, -26.0], [120.47, -25.47], [121.0, -25.25], [121.3, -25.37], [121.47, -24.97], [122.0, -24.75], [122.53, -24.97], [122.68, -25.32], [122.75, -25.35], [123.0, -25.25], [123.25, -25.35], [123.32, -25.32], [123.47, -24.97], [124.0, -24.75], [124.25, -24.85], [124.5, -24.75], [125.03, -24.97], [125.25, -25.5], [125.15, -25.75], [125.25, -26.0], [125.15, -26.25], [125.18, -26.32], [125.53, -26.47], [125.68, -26.82], [126.03, -26.97], [126.18, -27.32], [126.53, -27.47], [126.75, -28.0], [126.65, -28.25], [126.68, -28.32], [127.03, -28.47], [127.25, -29.0], [127.03, -29.53], [126.5, -29.75], [126.25, -29.65], [126.18, -29.68], [126.15, -29.75], [126.25, -30.0], [126.15, -30.25], [126.25, -30.5], [126.03, -31.03], [125.63, -31.2], [125.75, -31.5], [125.53, -32.03], [125.0, -32.25], [124.75, -32.15], [124.5, -32.25], [124.25, -32.15], [124.0, -32.25], [123.47, -32.03], [123.32, -31.68], [122.97, -31.53], [122.82, -31.18], [122.47, -31.03], [122.32, -30.68], [122.25, -30.65], [122.0, -30.75], [121.47, -30.53], [121.32, -30.18], [120.97, -30.03], [120.75, -29.5], [120.97, -28.97], [121.32, -28.82], [121.47, -28.47], [121.82, -28.32], [121.85, -28.25], [121.82, -28.18], [121.47, -28.03], [121.25, -27.5], [121.35, -27.25], [121.32, -27.18], [120.97, -27.03], [120.82, -26.68], [120.47, -26.53]]]]}, "2024-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -26.53], [120.25, -26.0], [120.47, -25.47], [121.0, -25.25], [121.3, -25.37], [121.47, -24.97], [122.0, -24.75], [122.53, -24.97], [122.68, -25.32], [122.75, -25.35], [123.0, -25.25], [123.25, -25.35], [123.32, -25.32], [123.47, -24.97], [124.0, -24.75], [124.25, -24.85], [124.5, -24.75], [125.03, -24.97], [125.25, -25.5], [125.15, -25.75], [125.25, -26.0], [125.15, -26.25], [125.18, -26.32], [125.53, -26.47], [125.68, -26.82], [126.03, -26.97], [126.18, -27.32], [126.53, -27.47], [126.75, -28.0], [126.65, -28.25], [126.68, -28.32], [127.03, -28.47], [127.25, -29.0], [127.03, -29.53], [126.5, -29.75], [126.25, -29.65], [126.18, -29.68], [126.15, -29.75], [126.25, -30.0], [126.15, -30.25], [126.25, -30.5], [126.03, -31.03], [125.63, -31.2], [125.75, -31.5], [125.53, -32.03], [125.0, -32.25], [124.75, -32.15], [124.5, -32.25], [124.25, -32.15], [124.0, -32.25], [123.47, -32.03], [123.32, -31.68], [122.97, -31.53], [122.82, -31.18], [122.47, -31.03], [122.32, -30.68], [122.25, -30.65], [122.0, -30.75], [121.47, -30.53], [121.32, -30.18], [120.97, -30.03], [120.75, -29.5], [120.97, -28.97], [121.32, -28.82], [121.47, -28.47], [121.82, -28.32], [121.85, -28.25], [121.82, -28.18], [121.47, -28.03], [121.25, -27.5], [121.35, -27.25], [121.32, -27.18], [120.97, -27.03], [120.82, -26.68], [120.47, -26.53]]]]}, "2024-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -26.53], [120.25, -26.0], [120.47, -25.47], [121.0, -25.25], [121.3, -25.37], [121.47, -24.97], [122.0, -24.75], [122.53, -24.97], [122.68, -25.32], [122.75, -25.35], [123.0, -25.25], [123.25, -25.35], [123.32, -25.32], [123.47, -24.97], [124.0, -24.75], [124.25, -24.85], [124.5, -24.75], [125.03, -24.97], [125.25, -25.5], [125.15, -25.75], [125.25, -26.0], [125.15, -26.25], [125.18, -26.32], [125.53, -26.47], [125.68, -26.82], [126.03, -26.97], [126.18, -27.32], [126.53, -27.47], [126.75, -28.0], [126.65, -28.25], [126.68, -28.32], [127.03, -28.47], [127.25, -29.0], [127.03, -29.53], [126.5, -29.75], [126.25, -29.65], [126.18, -29.68], [126.15, -29.75], [126.25, -30.0], [126.15, -30.25], [126.25, -30.5], [126.03, -31.03], [125.63, -31.2], [125.75, -31.5], [125.53, -32.03], [125.0, -32.25], [124.75, -32.15], [124.5, -32.25], [124.25, -32.15], [124.0, -32.25], [123.47, -32.03], [123.32, -31.68], [122.97, -31.53], [122.82, -31.18], [122.47, -31.03], [122.32, -30.68], [122.25, -30.65], [122.0, -30.75], [121.47, -30.53], [121.32, -30.18], [120.97, -30.03], [120.75, -29.5], [120.97, -28.97], [121.32, -28.82], [121.47, -28.47], [121.82, -28.32], [121.85, -28.25], [121.82, -28.18], [121.47, -28.03], [121.25, -27.5], [121.35, -27.25], [121.32, -27.18], [120.97, -27.03], [120.82, -26.68], [120.47, -26.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.985250374552663}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.6467818381488}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.579992031127063, 19.07487418596139, 20.76306408431185]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.240692392985068, 16.07975794474288, 17.01095860799154]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.896988173957806, -7.404029673491766, -5.63932766699683]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.985250374552663, -8.681716150385284, -6.23333729130627]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8654175050243214, -2.0363836404835682, -1.5426589428715753]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.491915087333492, -2.284264425897867, -1.7910682185188171]}}