{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:37.348023", "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": "2021-Oct-19_to_2021-Oct-21_115.5_-26.0"}, "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": 2021100000603}, "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": "October 19 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 21 2021"}, "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": 115190.57418755075}, "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": ["C.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": []}, "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": -26.0}, "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": 115.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "115.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 118.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.85, -26.25], [113.75, -26.0], [113.85, -25.75], 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[113.85, -25.75], [113.75, -25.5], [113.97, -24.97], [114.5, -24.75], [115.03, -24.97], [115.18, -25.32], [115.25, -25.35], [115.5, -25.25], [115.75, -25.35], [116.0, -25.25], [116.53, -25.47], [116.68, -25.82], [116.75, -25.85], [117.0, -25.75], [117.53, -25.97], [117.68, -26.32], [118.03, -26.47], [118.18, -26.82], [118.25, -26.85], [118.5, -26.75], [119.03, -26.97], [119.25, -27.5], [119.15, -27.75], [119.25, -28.0], [119.15, -28.25], [119.25, -28.5], [119.15, -28.75], [119.25, -29.0], [119.03, -29.53], [118.5, -29.75], [118.25, -29.65], [118.0, -29.75], [117.75, -29.65], [117.5, -29.75], [117.0, -29.54], [116.5, -29.75], [115.97, -29.53], [115.82, -29.18], [115.47, -29.03], [115.32, -28.68], [114.97, -28.53], [114.75, -28.0], [114.85, -27.75], [114.82, -27.68], [114.75, -27.65], [114.5, -27.75], [113.97, -27.53], [113.75, -27.0], [113.85, -26.75], [113.75, -26.5], [113.85, -26.25]]]]}, "2021-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.85, -26.25], [113.75, -26.0], [113.85, -25.75], [113.75, -25.5], [113.97, -24.97], [114.5, -24.75], [115.03, -24.97], [115.18, -25.32], [115.25, -25.35], [115.5, -25.25], [115.75, -25.35], [116.0, -25.25], [116.53, -25.47], [116.68, -25.82], [116.75, -25.85], [117.0, -25.75], [117.53, -25.97], [117.68, -26.32], [118.03, -26.47], [118.18, -26.82], [118.25, -26.85], [118.5, -26.75], [119.03, -26.97], [119.25, -27.5], [119.15, -27.75], [119.25, -28.0], [119.15, -28.25], [119.25, -28.5], [119.15, -28.75], [119.25, -29.0], [119.03, -29.53], [118.5, -29.75], [118.25, -29.65], [118.0, -29.75], [117.75, -29.65], [117.5, -29.75], [117.0, -29.54], [116.5, -29.75], [115.97, -29.53], [115.82, -29.18], [115.47, -29.03], [115.32, -28.68], [114.97, -28.53], [114.75, -28.0], [114.85, -27.75], [114.82, -27.68], [114.75, -27.65], [114.5, -27.75], [113.97, -27.53], [113.75, -27.0], [113.85, -26.75], [113.75, -26.5], [113.85, -26.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.656018945687151}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.957538667202489}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.68101537374207, 16.990358856418254, 18.134676257603587]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.65840150120249, 15.848177895150116, 16.43703885608562]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.107021151618558, -5.905730226394166, -4.8598646235947305]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.656018945687151, -6.947777477477189, -5.661977711464203]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.1862157227632957, -1.7842527948149642, -1.4503115406557323]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.846536754913957, -2.141326426886101, -1.626634431871926]}}