{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:35.159614", "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": "2026-May-22_to_2026-May-24_118.5_-32.5"}, "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": 2026050000484}, "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": "May 22 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 24 2026"}, "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": 83007.93114126878}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": ["Indian Ocean"]}, "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": -32.5}, "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": 118.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -31.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, -32.97], [115.32, -32.82], [115.47, -32.47], [115.82, -32.32], [115.85, -32.25], [115.75, -32.0], [115.85, -31.75], [115.75, -31.5], [115.97, -30.97], [116.5, -30.75], [116.75, -30.85], [117.0, -30.75], [117.53, -30.97], [117.68, -31.32], [117.75, -31.35], [118.0, -31.25], [118.25, -31.35], [118.5, -31.25], [119.03, -31.47], [119.18, -31.82], [119.53, -31.97], [119.75, -32.5], [119.65, -32.75], [119.75, -33.0], [119.53, -33.53], [119.18, -33.68], [119.03, -34.03], [118.5, -34.25], [118.25, -34.15], [118.0, -34.25], [117.75, -34.15], [117.68, -34.18], [117.53, -34.53], [117.0, -34.75], [116.75, -34.65], [116.68, -34.68], [116.53, -35.03], [116.0, -35.25], [115.47, -35.03], [115.32, -34.68], [114.97, -34.53], [114.75, -34.0], [114.85, -33.75], [114.75, -33.5], [114.97, -32.97]]]]}, "2026-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, -32.97], [115.32, -32.82], [115.47, -32.47], [115.82, -32.32], [115.85, -32.25], [115.75, -32.0], [115.85, -31.75], [115.75, -31.5], [115.97, -30.97], [116.5, -30.75], [116.75, -30.85], [117.0, -30.75], [117.53, -30.97], [117.68, -31.32], [117.75, -31.35], [118.0, -31.25], [118.25, -31.35], [118.5, -31.25], [119.03, -31.47], [119.18, -31.82], [119.53, -31.97], [119.75, -32.5], [119.65, -32.75], [119.75, -33.0], [119.53, -33.53], [119.18, -33.68], [119.03, -34.03], [118.5, -34.25], [118.25, -34.15], [118.0, -34.25], [117.75, -34.15], [117.68, -34.18], [117.53, -34.53], [117.0, -34.75], [116.75, -34.65], [116.68, -34.68], [116.53, -35.03], [116.0, -35.25], [115.47, -35.03], [115.32, -34.68], [114.97, -34.53], [114.75, -34.0], [114.85, -33.75], [114.75, -33.5], [114.97, -32.97]]]]}, "2026-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, -32.97], [115.32, -32.82], [115.47, -32.47], [115.82, -32.32], [115.85, -32.25], [115.75, -32.0], [115.85, -31.75], [115.75, -31.5], [115.97, -30.97], [116.5, -30.75], [116.75, -30.85], [117.0, -30.75], [117.53, -30.97], [117.68, -31.32], [117.75, -31.35], [118.0, -31.25], [118.25, -31.35], [118.5, -31.25], [119.03, -31.47], [119.18, -31.82], [119.53, -31.97], [119.75, -32.5], [119.65, -32.75], [119.75, -33.0], [119.53, -33.53], [119.18, -33.68], [119.03, -34.03], [118.5, -34.25], [118.25, -34.15], [118.0, -34.25], [117.75, -34.15], [117.68, -34.18], [117.53, -34.53], [117.0, -34.75], [116.75, -34.65], [116.68, -34.68], [116.53, -35.03], [116.0, -35.25], [115.47, -35.03], [115.32, -34.68], [114.97, -34.53], [114.75, -34.0], [114.85, -33.75], [114.75, -33.5], [114.97, -32.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.205936708862168}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.995157708861847}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.038540140787802, 8.227198537190816, 9.577957407633505]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.914397176106775, 6.94902064005538, 8.64946009318038]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.013247802831984, -4.7017332373799, -3.2704920863736575]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.455053772224801, -6.205936708862168, -3.6746570900264715]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8342973253205523, -2.133348118797803, -1.4632501272952187]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0930111201936286, -2.598870313952562, -1.6877046885960618]}}