{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:53:27.855625", "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": 2026050000568}, "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": 96026.29983434698}, "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": 119.75}, "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], [117.25, -30.85], [117.5, -30.75], [117.75, -30.85], [118.0, -30.75], [118.53, -30.97], [118.68, -31.32], [119.03, -31.47], [119.18, -31.82], [119.25, -31.85], [119.5, -31.75], [120.03, -31.97], [120.25, -32.5], [120.03, -33.03], [119.68, -33.18], [119.65, -33.25], [119.75, -33.5], [119.53, -34.03], [119.0, -34.25], [118.75, -34.15], [118.5, -34.25], [118.25, -34.15], [118.18, -34.18], [118.03, -34.53], [117.5, -34.75], [117.25, -34.65], [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], [117.25, -30.85], [117.5, -30.75], [117.75, -30.85], [118.0, -30.75], [118.53, -30.97], [118.68, -31.32], [119.03, -31.47], [119.18, -31.82], [119.25, -31.85], [119.5, -31.75], [120.03, -31.97], [120.25, -32.5], [120.03, -33.03], [119.68, -33.18], [119.65, -33.25], [119.75, -33.5], [119.53, -34.03], [119.0, -34.25], [118.75, -34.15], [118.5, -34.25], [118.25, -34.15], [118.18, -34.18], [118.03, -34.53], [117.5, -34.75], [117.25, -34.65], [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], [117.25, -30.85], [117.5, -30.75], [117.75, -30.85], [118.0, -30.75], [118.53, -30.97], [118.68, -31.32], [119.03, -31.47], [119.18, -31.82], [119.25, -31.85], [119.5, -31.75], [120.03, -31.97], [120.25, -32.5], [120.03, -33.03], [119.68, -33.18], [119.65, -33.25], [119.75, -33.5], [119.53, -34.03], [119.0, -34.25], [118.75, -34.15], [118.5, -34.25], [118.25, -34.15], [118.18, -34.18], [118.03, -34.53], [117.5, -34.75], [117.25, -34.65], [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": -6.111658257340196}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.8757440369261413}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.066571567294886, 8.21683630728512, 9.630901006750207]}, "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": [-3.876764392471815, -4.627944221756104, -3.1225234965505044]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.325860995783614, -6.111658257340196, -3.575290358871257]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7107404567061593, -2.0590932410036644, -1.4464670899728596]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9713765885901888, -2.520868111520023, -1.737900686450853]}}